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TAMIL NADU TRANSMISSION CORPORATION LIMITEDConsolidation of LC for the month of August 2017 at 7th TNSOCC Meeting

Transmission Lines / Elements DetailsP_Id To Substation Purpose conditions From Date To Date Remarks SE Approval

1 Madurai 44605 110 KV POSSIBLE Tue, 01/Aug/2017 7:00 Tue, 01/Aug/2017 18:00 1 Approved

2 Erode 58620 230 KV KUNDAH PH2 LOAD BREAK SWITCH AND AB SWITCH OPEN CONDITION Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

3 Chennai 58625 110 KV To Carryout Monthly Maintenance work Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 16:00 1 Approved

4 Chennai 58585 230 KV 230KV SVC-ORAGADAM Feeder entire Quarterly maintenance work Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

5 Madurai 58872 110 KV NOT POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

6 Madurai 58656 110 KV Monthly maintenance Work POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

7 Erode 59006 230 KV monthly maintenance work Feeder is already radial. Possilbe Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved


9 Chennai 59111 230 KV Quarterly Maintenance Possible Tue, 01/Aug/2017 10:00 Tue, 01/Aug/2017 17:00 1 Approved

10 Erode 59193 110 KV GOBI 230 KV Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved


12 Madurai 59226 110 KV POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 16:00 1 Approved SGC

13 Chennai 58718 110 KV 110KV Thiruporur # Monthly Maintenance Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 14:00 1 Approved

14 Madurai 59406 110 KV Line maintenance work POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

15 Madurai 59522 110 KV 110KV Palaiyur -Aduthurai feeder entire Line inspection and rectification work POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

16 Erode 59620 230 KV KUNDAH PH3 230KV PH3 TO KARAMADAI FEEDER For pre-monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Tue, 01/Aug/2017 8:00 Tue, 01/Aug/2017 17:00 1 Approved

17 Erode 59625 230 KV 230 KV PGCIL - Arasur Link 1 feeder Breaker& CTs. For Monthly maintenance Works. Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 16:00 1 Approved

18 Erode 59683 110 KV 110KV Arasur -coimbatore feeder Breaker& CTs. Possible Tue, 01/Aug/2017 11:00 Tue, 01/Aug/2017 13:00 1 Approved

19 Erode 59686 110 KV 110KV Arasur -Karuvalur 2 feeder Breaker& CTs. Possible Tue, 01/Aug/2017 14:00 Tue, 01/Aug/2017 16:00 1 Approved

20 Madurai 59748 110 KV 110 KV Northern side CT Monthly maintenance work POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 13:00 1 Approved SGC

21 Madurai 59749 110 KV For monthly maintenance work. POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 14:00 1 Approved

22 Erode 59763 230 KV AUTO-I ,HV-I,LV-I Breaker and Its CTs For monthly maintenance works Possible Tue, 01/Aug/2017 10:00 Tue, 01/Aug/2017 17:00 1 Approved

23 Madurai 59849 230 KV 230KV Valuthur - Karaikudi feeder entire POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

24 Chennai 59953 230 KV 230 KV NCTPS-Kilpauk feeder Jumper Tightness various location All other feeder will be in services Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

25 Erode 58755 110 KV INGUR 230 KV Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 12:00 1 Approved

26 Erode 60071 230 KV Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 18:00 1 Approved

27 Erode 60086 110 KV 110 KV Bus Coupler CT and Breaker For monthly maintenance Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

28 Madurai 58787 110 KV For Monthly Maintenance Work. No SS will be affected. POSSIBLE Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

29 Erode 58830 110 KV For Monthly Maintenance work 110KV Thalaivasal SS availing total shutdown. Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Sub to Thalaivasal TSD Approved

30 Erode 58857 230 KV 230kv MTPS - II -THINGALUR feeder Entire. Thingalur 230kvss has programmed for maintenance work on that day. Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 14:00 1 Approved

31 Erode 58863 230 KV For monthly maintenance works. Possible Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

32 Erode 59652 230 KV 230KV Palavadi Feeder Monthly maintenance work During the LC period other 230KV feeders will be in service. Postponed Tue, 01/Aug/2017 9:00 Tue, 01/Aug/2017 17:00 1 Approved

33 Chennai 58591 400 KV Monthly maintenance work Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

34 Erode 58531 110 KV 110 KV somayampalayam SS will fed from 230 KV OKM SS radialy Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 16:00 1 Approved

35 Erode 58621 230 KV KUNDAH PH2 LOAD BREAK SWITCH AND AB SWITCH OPEN CONDITION Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

36 Erode 58636 230 KV MTPS ANTHIYUR 230KV FEEDER MONTHLY MAINTENANCE PROGRAMED LC Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

37 Madurai 58891 110 KV 110KV Thiruvarur - Narimanam - I Feeder Annual Relay Test by GRT wing. POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

38 Erode 58646 METTUR TPH Machines-I generator and its auxiliaries FOR MONTHLY MAINTENANCE Possible Wed, 02/Aug/2017 7:00 Wed, 02/Aug/2017 17:00 1 Mettur demand 500 C/S Approved

39 Erode 58654 230 KV 230KV ANTHIYUR-MTPS-I ENTIRE FEEDER Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 15:00 1 Approved

40 Chennai 59019 230 KV 100 MVA Auto Transformer - 1 Routine Maintenance Works. Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 13:00 1 Approved

Sl. No

Name of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

SEMBATTY 230 KV

1) 110 KV Sbt -Theni I # (Section between sempatti - Ayyampalayam SS)2) 110 KV Sbt -Theni II # (Section between Nilakottai SS - Eluvanampatti SS)

1) 765 KV Tuticorin - salem DC Line stringing work at location no. 145-146 of tneb location,2) Tree cutting work.

1) During LC period, 110 KV Sbt - Theni I # is radial from other end upto 110 KV Ayyampalayam SS,2) During LC period, 110 KV Sbt - Theni II # is radial from sbt end upto 110 KV Nilakottai SS and also radial from other end upto 110 KV Eluvanampatti SS,3) Concurrence obtained EE/O/Theni, Hence no interruption to any SS.

SUB TO LOAD CONDITION.

AUTO TRANSFORMER 1 AND ITS ACCESSIORIES

FOR MONTHLY MAINTENANCE WORK

Sub to Kundah generation

ACHRAPAKKAM 230 KV

110 KV Murukerry Feeder Breaker and CTâ€™s With line isolator

1.110KV Ack-Murukkeri feeder Hand tripped in 230KV Achrapakkam ss end.2.110KV Murukkeri feeder load will be transfer to 110KV S.P.Koil II # through 110KV Illedu SS Via.3.Hence no interruption of power supplies.

Sunguvarchatram 400 KV

During the above shutdown period the 230KV SVC - Oragadam feeder will be out of service

ACHRAPAKKAM 230 KV

110KV Kodikurchi-Kannarpatty feederSection between ( Keelapavoor-Keelaveeranam-Alangulam)

Defective disc replacement work at location No. 8, & 15 .

1.110 KV Keelapavoor will be fed from Kodikuruchi SS and Keelaveeranam SS will be fed from Kayathar SS by closing the isolator at Keelaveeranam SS end ,and Alangulam SS will be radialy fed from Kanarpatty SS.2.110 KV isolator towards Keelapavoor will be kept opened in Alangulam SS , and Keelaveeranam SS and towards Alangulam and Keelaveeranam will be kept opened in Keelapavoor SS .Hence no SS will be affected .

KODIKURICHY 230 KV

110 KV Kadayanallur # Breaker with CT & Line Isolators

SUB TO WIND GEN AND LOAD CONDITION

THINGALUR 230 KV

230KV MTPS II feeder Breaker and CTs with line Isolator.

Already breaker open at MTPS2

KARAIKUDI 230 KV

on 1)230KV KKDI-VLDR# Br & Ct's. 2)230KV KKDI-VLDR # Entire.

1)Monthly Mtc work2)Disc Replacement work3)Grt annual Relay Test.

All other 230KV #'s tied with grid.Hence there will be No Interruption of Supply.

SUB TO LOAD CONDITION

ORAGADAM 230 KV

230KV Oragadam - Sunguvarchatram Feeder,breaker & CT's bus & line isolators

i) There will be NO supply on the entire 230KV Oragadam- Sunguvarchatram #. ii) All other 230KV feeders are in service

110 KV Anthiyur Feeder breaker, CTs and line switch with entire line

For Monthly maintenance work and for GRT Relay testing work

110 KV KUGALUR SS MAY AVAIL TOTAL SHUTDOWN, SUPPLY TO 110 KV T N PALAYAM SS MAY FED FROM 230 KV ANTHIYUR SS , NO OTHER SS WILL AFFECTED

Kugalur TSD and TN Palayam fed from Anthiyur

PASUMALAI 230 KV

1)110 KV Pasumalai - Alagarkoil-II # BKR & CT, LI only. 2)Line sec bw pasumalai and Anaiyur

1) Maintenance Works of BKR & CT, LI only. 2) Tree cutting works.

1)110 KV Arasaradi SS loads are fed by 110KV Pasumalai - Arasaradi - SC Feeder at 110KV Pasumalai SS 2)Switch No 1 at 110KV Pasumalai Grid SS is under Open Condition. 4)The feeder will be kept radial from Alagarkoil SS upto Anaiyur SS feeding Tirupalai SS , Anaiyur SS and Ellis Nagar SS. 5)The 110KV isolator towards Pasumalai at Anaiyur SS and the 110KV Line isolator at 230KV Pasumalai SS will be under open condition. 6)110KV Alaagrkoil- Sembatty -1 Feeder tie will be kept opened at Alagarkoil SS


SRPUDUR 230 KV

110 KV SRP-PZR # Br,CT &Line switch and Line entire.

Monthly Mainteanace work,Line Mainteanace work,Annual relay testing work

During the LC period 110/11 KV Palavoor SS will avail supply from 110 KV SR Puthur - Kanyakumari feeder. Hence no ss will be affected.

SUB TO WIND GEN AND NO BLOCKING OF WIND GEN

VEERAPURAM 230 KV

110KV-Thirukazhukundram ss- proposed total shutdown and other ss loads will have to be transferred to 230 KV Omega ss

KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC. BET. R.S.MANGALAM AND THIRUVADANAI (INCLUDING ANANDUR SPUR LINE)

FEEDER TO BE KEPT RADIAL FROM VALUTHUR UPTO R.S.MANGALAM AND TO KEPT RADIAL FROM KARAIKUDI UPTO THIRUVADANAI. ANANDUR SS TO BE UNDER SHUTDOWN

SUB TO LOAD CONDITION AND ANANDUR S/D

KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS.110KV Aduthurai SS proposed total shut down on the sane day.


50 MW Imp and other #s will cater the load

ARASUR 230 KV

During the L.C Period remaining 5 Nos. 230 KV Feeders will be in service .

Approved vide Sl. No. 66 in 133rd OCC,

ARASUR 230 KV

For Tan delta measurement of CT'S BY P & C WING / Coimbatore.

During the L.C Period ,The feeder normally fed from 230 KV Coimbatore SS. .

Inter loads fed from Arasur

ARASUR 230 KV


During the L.C Period ,The feeder normally fed from 230 KV Karuvalur SS.

Already inter loads fed from Karuvalur

ANUPPANKULAM 230 KV

During the LC Period the 110 KV Anuppankulam SS will be availing total shut down. Hence no SS will be affected.

SUB TO 110KV ANPKM SS TOTAL S/D

ANUPPANKULAM 230 KV

110 KV Capacitor Bank - II Br., CT. and line switch only.

During the LC period the 110 KV Capacitor Bank - II will be Hand Tripped condition.

PONNAPURAM 230 KV

Subject to the wind generation, 1.110KV PNPM SS GC-II will be feed from 110KV Ingur - II # Hence No SS will be affected.

Sub to Auto Trf loading

VALUTHUR 230 KV

During the LC period 230KV Valuthur - Kavanoor and Alagarkovil feeders will be in service. Hence, there is


KORATTUR 230 KV

110 KV sipcot II-palladam # section between sipcot II ss and 110 kv uthukuli ss

railway crossing jumper tightening work and cut point jumpers tightening work on 110 kv periyandipalayam LILO .

1)no ss will be affected during LC period2)110 kv periyandipalayam ss avail total shutdown on 1/08/2017.

Periyandipalayam TSD, Uthukuli fed from Palladam

ARASUR 230 KV

230 KV Arasur-Pgcil Link-I # breaker,CTs ,Control and relay panels

For Erection and commissioning of New Anunciator Unit by P & C wing/Thudialur.

During the L.C Period , Remaining 5 Nos 230 K.V Feeders will be in service.

PALLAKAPALAYAM 230 KV

Sankari -I and BKB -I will be fed from Auto I, Sankari -II,Thevur and Barriage - IV will be fed from Auto II

TUTICORIN -AUTO 230 KV

On 110 KV TTN - ARNI - I # Breaker with CT Bus and line side switches


DEVIAKURICHI 230 KV

110 KV Thalaivasal Feeder Breaker, CTs and Line Isolator

METTUR AUTO 230 KV

For Jumber cone tightness checking work at River crossing tower T.loc.No.143 and other Tension towers between T.loc.No.87-143.

Already breaker open at MTPS2

OTHAKKAL MANDABAM 230 KV

230 KV OKM-Anaikadavu Feeder (Breaker, CT's, 89M1, 89M2 & 89L Isolators) Line entire.

During the LC period the other 230 KV feeders are in service to cater the ss loads.

Sub to 230 KV OKM-Myvadi # loading

METTUR AUTO 230 KV

400 KV MTPS 2 - Palavadi # 2 LC recommended


315MVA, 400/230KV Auto Transformer -1 with Tie -4

During the above shutdown period the 315MVA, 400/230KV Auto Transformer -2 will cater the load of 315MVA, 400/230KV Auto Transformer -1 without interupption

OCC approved,item No.93/133

THUDIALUR 230 KV

110 KV Thudialur-OKM - 2 feeder section between 230 KV TDLR SS and 110 KV somayampalayam SS & 110 kv OKM II FEEDER BKR & CTs

PMI WORKS BY AE/LINES TDLR & MONTHLY MAINTENANCE WORKS

Inter loads fed from OKM



Sub to Kundah generationOther #s will cater the load

THIRUVARUR 230 KV

During the LC period the 110KV Thiruvarur - Narimanam II feeder will be in service & Annual Relay Test by GRT Wing. Hence there will be no interruption of supply to any other SS.

GENERATING STATIONS

DURING THE LC PERIOD 230KV FEEDERS ARE IN SERVICE AND THE PWD DEMAND IS MEET OUT THROUGH PWD.Machines 2,3 & 4 are in standby condition.

ANTHIYUR 230 KV

FOR MONTHLY MAINTENANCE WORK AND ANNUAL RELAY TESTING WPRK BY P&C WING

DURING THE LC PERIOD OTHER END ALSO PROGRAMMED TO AVAIL LC ON THE ABOVE FEEDER

Sub to 230 KV Gobi # loading

TONDIARPET 230 KV

During the period of shutdown,Except 100 MVA Auto Transformer - 1 will not be in service and all other feeders and equipments will be in service.


Transmission Lines / Elements DetailsP_Id To Substation Purpose conditions From Date To Date Remarks SE ApprovalSl.

NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

41 Erode 59048 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

42 Madurai 59077 230 KV POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

43 Madurai 59087 110 KV Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 14:00 1 wrong entry Wrong entry

44 Madurai 59108 110 KV 110KV Kabilarmalai Radial feeder Breaker,CTs Monthly Maintenance work. POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

45 Madurai 59110 230 KV Monthly maintenance work POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

46 Chennai 59117 230 KV Quarterly Maintenance Possible Wed, 02/Aug/2017 10:00 Wed, 02/Aug/2017 17:00 1 Approved

47 Madurai 59157 230 KV 230 KV Bus A Entire For BUS maintenance POSSIBLE Wed, 02/Aug/2017 10:00 Wed, 02/Aug/2017 17:00 1 Approved

48 Chennai 59194 110 KV 110kv Tidel park-II Feeder Maintenance work 110kv Tidel park-I Feeder will be in service Possible Wed, 02/Aug/2017 10:00 Wed, 02/Aug/2017 17:00 1 Approved

49 Chennai 58679 110 KV 110KV CAPACITOR BANK-I(01652) Quarterly maintenance work Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved


51 Erode 59196 230 KV GOBI 230 KV Auto Transformer-III HV, LV Breaker and CTs Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Sub to Auto load Approved

52 Madurai 59228 110 KV 110 KV SRP-NGL # Breaker, CT & line switch Monthly Mainteanace work POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 14:00 1 Approved

53 Madurai 59271 230 KV POSSIBLE Wed, 02/Aug/2017 9:00 Sun, 06/Aug/2017 18:00 5

54 Madurai 59339 110 KV NOT POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 15:00 1 DUE TO WIND GEN

55 Madurai 59356 230 KV then I 230 KV POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 13:00 1 Approved



58 Erode 59399 230 KV MTPS Anthiyur 230KV Feeder Programmed LC Repeat Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 P-id 58636 Repeat

59 Erode 59409 KUNDAH PH1 UNIT NO 1 Possible Wed, 02/Aug/2017 8:00 Wed, 02/Aug/2017 17:00 1 Sub to grid condition Approved

60 Erode 59410 110 KV Monthly Maintenance Work Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Sub to loading Approved

61 Erode 59419 110 KV Monthly Maintenance Work Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 After completion of # 1 Approved

62 Madurai 59438 110 KV 110KV Alkl-Sempatty-2 # breaker with C.T. For monthly maintenance work The feeder will be radial from other end. POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 13:00 1 Approved

63 Erode 59466 110 KV Monthly Mtce work iyyerpady SS will be fed from SLR-FEEDER NO-II Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 16:00 1 Approved


65 Erode 59496 230 KV Monthly maintenance work. Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Sub to Auto load Approved

66 Erode 59558 110 KV For monthly maintenance works. Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

67 Chennai 59598 110 KV 110KV Villupuram Link Auto # Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

68 Chennai 59669 230 KV 230KV TSII- Ulundhurpettai Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

69 Erode 59693 230 KV Posible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 13:00 1 Sub to Auto load Approved

70 Chennai 59703 230 KV NOT POSSIBLE Wed, 02/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 3 Not Approved

71 Erode 59708 110 KV 110KV Arasur-Karuvalur 1 Feeder breaker and CTs. The feeder normally radial fed from 230 KV Karuvalur SS . Possible Wed, 02/Aug/2017 14:00 Wed, 02/Aug/2017 16:00 1 Approved

72 Chennai 59719 110 KV 110KV Villupuram Link Auto # Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

110KV Sipcot II Breaker, CT’s, Isolators , and Line side Isolator

SIPCOT 2 TSD and sub to ISPAT concurrence for voltage

KARAIKUDI 230 KV

230/110KV 50MVA Auto.Tr-I & its allied Equipments.

1)Monthly Mtc work2)Grt annual Relay Test.

During the LC Period the Auto.Tr-I Load will be contain other Auto.tr- II & III. Hence there will be No interruption of Supply Please.


SANKANERI 230 KV

110KV Sankaneri-Koodankulam Feeder Breaker,CTs& Lineswitches.

For monthly maintenance & GRT Annual Relay Testing purpose.

During the LC Period 110KV Vijayapathi SS Supply Radially Fed From SR Puthoor Arumuganeri Feeder-II by Closing BUS Coupler Switch-II at Koodankulam SS.

PUGALUR 230 KV

During the LC period 1) 110KV Kabilurmalai SS is proposed total shutdown,remaining 110KV Velur SS,110KV Villipalayam SS load fed from 230KV Unjanai SS via 110KV Nallur SS and 110KV Valavanthi SS, load will be fed from 230KV SS Pudansandai Concurance obtained from EE/O/Pudansanthai and EE/SLDC/Erode. there is no interruption to any SS.

SUB TO CONCURRENCE FORM ERODE/SLDC

PUGALUR 230 KV

230 KV Pugalur - Paramathy II feeder Breaker, CT & line switch and line entire only

During the LC period, there will be no supply in 230 KV Pugalur - Paramathy II feeder. Hence There is no interruption to any SS,LC approved in 133 th OCC meeting

SUB TO LOAD CONDITION: LC APPD IN 133 OCC VIDE ITEM NO.64

ORAGADAM 230 KV

230KV Oragadam - Singaperumalkovil feeder breaker, CT's & all Isolators

i) During the LC period, there will be NO supply on the entire feeder, ii) All other feeders are in service.

EACHANGADU 230 KV

The 230 feeder loads & Auto loads will be transferred from 230 KV Bus A to 230 KV Bus B before LC,. Hence No interruption of supply. After completion of work 230 KV A Bus will be Kept in stand by.

THARAMANI 230 KVSriperumbudur 400 KV

During the period of shutdown 110KV capacitor bank-II will be continued in service

Approval by concerned SE/O

KODIKURICHY 230 KV

1)230KV Amuthapuram # I Breaker with C.T and all Isolators. 2)230 KV Kodikuruchi-Amuthapuram Feeder-I ( Entire Line )

1.Monthly maintenance 2.For special Line Patrol work

EE/O/Amuthapuram has also applied LC on 230KV Amuthapuram # I breaker on the same day 02.08.2017

SUB TO WIND GEN AND LOAD CONDITION.


AUTO TRANSFORMER II AND I ARE IN SERVICE ,IT MAY CATER THE LOAD

SRPUDUR 230 KV

During the LC period,110/11 KV TGPR, MPM and KKY SS will avail total shut down as approved by SE/KKEDC/NGL. Nagercoil SS will avail supply from 110 KV SRP - Kodayar I #. Maharajapuram SS will avail supply from 110 KV SRP-KKY #. Hence no SS will be affected.

SUB TO WIND GEN AND GRID CONDITION

PASUMALAI 230 KV

1)110 KV Pasumalai - Sembatty Feeder Line LC section between Achampathu SS and Sithargalnatham SS

Replacement of existing 110KV SC Line with leopard conductor by 110KV line on DC tower and MC tower with panther conductor from Loc No. 161 to 166.

1) The Feeder will be kept radial from Sembatty end upto Sithargalnatham SS. 2)110KV AB Switch towards Sembatty at Achampathu SS will be kept opened .3) The Feeder will be kept radial from Pasumalai end upto Achampathu SS. 4) 110KV AB Switch towards Pasumalai at Sithargalnatham SS will be kept opened 5) The Ramarajapuram SS and Vadipatty SS loads will be transferred to 110KV Sembatty-Alagarkoil-1 Feeder . LC could be Entered only for 3 days . whereas the actual LC Required is from 02.08.2017 to 11.08.2017

LONG LC NOTE TO BE PUTUP.

Subject to Note approval

SANKANERI 230 KV

110kKV VIJAYAPATHIFEEDER BREAKER&CT AT KOODANKULAM SS IN 110KV SANKANERI-KOODANKULAM FEEDER

For Annual Relay Testing wok By GRT/SRPudhoor

Durin the LC Period there willbe No supply in the 110kv sankaneri-koodankulam entireFeeder.since Relay Testing work at 110KV Vijayapathi Breaker at koodankulamSS.

Subject to EE/SLDC/Madurai Concurrence

230 KV AUTO TRANSFORMER I HV & LV BREAKER WITH CT ONLY

FOR MONTHLY MAINTENANCE WORK .

DURING THE LC PERIOD THE STATION LOAD WILL BE MANAGED OTHER TWO AUTO TRANSFORMERS


SAMAYAPURAM 230 KV

110 KV SMPM-Kallakudi -I # CT's , Breakers and entire line portion (tied feeder) .

Monthly Maintenance Works and Line Patrol Work.

1. During the above LC Period, 110Kv Kallakudy I # Breaker is in H/T condition at 230KV Tahtchankurichy SS . 2.110Kv Thatchankurichy I# Breaker is in H/T condition at 110KV kallakudy Grid SS. 3.Bus and Line Isolator towards 110KV Kallakudy Grid SS will be kept in open condition at 230KV Thatchankurichy SS. 4.Line Isolator towards 230KV Thatchankurichy SS will be kept in open condition at 110KV Kallakudy Grid SS. 5. Earth switch will be kept in closed condition at 110Kv Kallakudy grid ss and 230KV Thatchankurichy SS. 6.110 KV Kallakudi-II # will be in tied condition. 7.There will be no interruption to any other SS.

AMUTHAPURAM 230 KV

230KV Amuthapuram-Kodikurichi-1 # with breakers,CT's and its isolators

Monthly Maintenance Work and M2 relay replacement

1) During the LC period there will be NO supply in this feeder. 2) Other End also avail LC on same day. 3) Concurrence obtained from SE/NCES/TIN.


Special testing work in newly commissioned numerical main-II distance protection relay.

GENERATING STATIONS

FOR 87GT ABB RELAY COMMISSIONING WORK BY P&C WING KUNDAH AND MONTHLY MAINTENANCE WORK.

DURING THE LC PERIOD THE CONCERN UNIT WILL BE UNDER NOT S/B CONDITION.

Udumalpet 110 KV

110 KV UDT –Link – I #rs breaker, CT’s and Entire line

During LC period there is No SS will be affected. Since interconnected SS will be fed from other end

Udumalpet 110 KV

110 KV UDT –Link –III #rs breaker, CT’s and Entire line


ALAGARKOIL 230 KV


ALIYAR 230 KV

110KV ALR-SLR FEEDER NO-1 CB,CT AND LINE ENTIRE

Sub to Sholayar PH 1 & 2 generation

ALUNDUR 230 KV

100 MVA Auto Transformer - I ,HV-I,LV-I Breaker's, CT's and Isolators.

a)Monthly maintenance work. b)Relay Testing work.

During the LC period, a)110KV K.Sathanur SS also avail Total shutdown load relief 12.7MW. b)An Other 100 MVA Auto Transformer -II will be in service. c)All 110 KV feeders will be in service. d)There will be no interruption of supply to any other feeders.


SALEM AUTO 230 KV

100MVA Auto Transformer-I, HV-I, LV-I Breakers and their CTs.

1. 2Nos. 100MVA Auto Transformer-II and III will be in service.2. Mallur 110KV SS will be fed from Pudansandai 230KV SS. 3. There will be no interruption to any SS or feeder.

PUDHANCHANTHAI 230 KV

110KV Pudhansandai feeder CB, CTs and Line Switch.110KV Namagiripet feeder CB, CTs and Line Switch.110KV West Bus, its PTs and Bus Switches-5 Nos.

During LC periodFor 110KV Feeder LCs110KV Pudhansandai SS availing Total Shut down.110KV Namagiripet SS availing Total Shut down.For 110KV West Bus LC110KV Rasipuram SS will be transferred to 110KV Salem-Malllur feeder.110KV Namakkal SS will be transferred to 110KV Valayapatty feeder fed by New 230KV Valayapatty SS.No supply interruption.

PSI110 & Namagiripet TSD, Namakkal trf to Valayapatty

VILLUPURAM 230 KV

To carry out Breaker and CT’s Monthly Maintenance Work and Annual Relay Testing work at 230 KV Auto SS,Villupuram by GRT.

1.Both ends Breaker H/T and bus & Line side Kept opened.2.Hence No interruption of supply to any SS.

CUDDALORE 230 KV

To Check jumper tightness at various locations

Alternate supply from VPM end . (TSD in 230 KV Ulpt Auto SS- ULPT –TSII )

ARASUR 230 KV

230/110KV Auto Transformer-I, HV-I,LV-I breaker,CTs and LAS .

For Monthly maintenance work and Tan delta measurement of CT'S BY P & C WING / Coimbatore.

During the L.C Period ,the remaining 3 X 100 MVa Auto transformer will be in service. 110 KV Neelambur SS and Sulur SS will be under total shut down.

CUDDALORE 230 KV

230 KV Neyveli TS 1 - Eachangadu feeder( Between TSI and 230 Kv Eachangadu SS)

LC has been requested in the existing 230 KV SC line of Neyveli TS-I to Eachangadu feeder from Loc.No 16 to Loc. 134 for replacing the existing balance aged Kundha conductors by Zebra conductors.

230 KV Eachangadu SS will be fed from 230 KV Samyapuram feeder from Trichy end. During the period of LC the loads of 110 KV Vridhachalam SS and Pennadam SS are to be transferred to the 110 KV Neyveli -Deviakurichi II feeder. Concurrence from EE/O/Eachangadu to be obtained .(And extended upto 12.08.2017 10 days)

ARASUR 230 KV

For Tan delta measurement of CT'S BY P & C WING / Coimbatore .

Already inter loads fed from Karuvalur

Villapuram 110 KV

Breaker , CT’s & Line Side isolator Maintenance works

1. The feeder will be kept radial from 230KV Auto SS end.2. Hence no interruption of supply in any SS.



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

73 Madurai 59750 230 KV POSSIBLE Wed, 02/Aug/2017 8:00 Wed, 02/Aug/2017 15:00 1 postponed



76 Madurai 59755 110 KV For Monthly Maintenance Work. POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 13:00 1 Approved

77 Erode 59764 110 KV 110 KV Ponnapuram # Breaker & CTs & Line entire For monthly maintenance works Possible Wed, 02/Aug/2017 10:00 Wed, 02/Aug/2017 17:00 1 Sub to wind generation Approved

78 Erode 59811 230 KV MTPS II - 1 Feeder No interruption of supply, Load fed through 400KV MTPS II - 2 Feeder Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

79 Chennai 59835 230 KV Ulundurpet 230/110 KV Auto Transformer Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

80 Chennai 59902 230 KV 230KV SPK-ORAGADAM FEEDER Quarterly mtce work & Line mtce work during the period of shut down, all other 230KV feeders will be in service Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

81 Chennai 59955 230 KV 230 KV NCTPS-Kilpauk feeder Jumper Tightness at various location All other feeder will be in services Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

82 Madurai 60000 110 KV 110KV Mayiladuthurai- KGTPS feeder entire No interruption to any ss. All other feeders will be in tied condition. POSSIBLE Wed, 02/Aug/2017 10:00 Wed, 02/Aug/2017 16:00 1 Approved

83 Erode 58756 110 KV INGUR 230 KV Postponed Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 12:00 1 Wrong entry Not Approved

84 Erode 60019 110 KV Idle Line portion.No interruption of supply. Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Idle section Approved

85 Erode 60036 110 KV Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 18:00 1 Approved

86 Erode 60053 110 KV 110 KV Puthanchandai-Namagripet Feeder jumper tightness work Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Namagiripettai TSD Approved

87 Erode 60057 110 KV 110KV Udt link III # Breaker & Line entire Monthly Maintenance Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1

88 Erode 60059 110 KV 110KV Udt link I # Breaker & Line entire Monthly Maintenance Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1

89 Erode 60103 110 KV Erode 110 KV 110 KV BKBI feeder breaker and CT Monthly maintenance work Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 15:00 1 Approved

90 Erode 58766 110 KV INGUR 230 KV 110 kv ingur-sipcott II # entire Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 14:00 1 Approved


92 Madurai 58851 110 KV 110KV Thiruvarur - Narimanam I POSSIBLE Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

93 Erode 58869 110 KV PMI Works by Lines/TDLR wing. Possible Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 14:00 1 Approved

94 Chennai 59844 230 KV 230KV Neyveli TS-II Feeder 230KV Neyveli Ts-II Feeder. Preponed to Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

95 Chennai 59848 230 KV 230KV Neyveli TS-II Feeder 230KV Neyveli TS-II Feeder Preponed to Wed, 02/Aug/2017 9:00 Wed, 02/Aug/2017 17:00 1 Approved

96 Erode 110 KV 110 KV Nambiyur Feeder entire bay Possible Wed, 02/Aug/2017 10:00 Wed, 02/Aug/2017 17:00 1 Approved SGC

97 Erode 110 KV 110kV Bus bar protection system Possible Wed, 02/Aug/2017 11:00 Wed, 02/Aug/2017 13:00 1 Approved SGC

98 Chennai 58595 230 KV 230KV SVC - SIPCOT Feeder Entire Quarterly maintenance work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

99 Erode 58532 110 KV 110 KV Geddai I& II feeder Br & CTs For Monthly maintenance works Maintenance works will be taken one after another Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 16:00 1 Approved

100 Erode 58622 230 KV KUNDAH PH2 LOAD BREAK SWITCH AND AB SWITCH OPEN CONDITION Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Sub to Auto load Approved

ANUPPANKULAM 230 KV

230KV Southern Bus entire (from 1 - 89 B switch to south side end)

For Removal of dropper jumper ( from230kv strung bus to 230kvAPKM-Sterlite feeder bus bar) of 230KVAnuppankulam - Sterlite feeder ( Augmentation of 100MVA to 160MVA Auto Transformer work)

During the LC period, Auto Transformer-II & III, HV-II & III, LV-II & III will be under hand tripped condition and 230KV Anuppankulam - Sterlite feeder CB both end will be in hand tripped condition and Auto Transformer-I will be fed from 230KV Anuppankulam- Madurai only.110KV Aruppukottai SS loads will be transferred to 110KV Kavanoor - Kamuthi feeder and 110KV APKM - PSQ # Radial fed from other end. If necessary 110 KV Rajapalayam - I feeder load transfer to 230 KV Nallamanaickenpatti SS by opening the tie at APKM SS. Hence No SS affected.

POSTPONED TO 28.08.2017

ANUPPANKULAM 230 KV

230KV Anuppankulam - Sterlite feeder &230KV APKM-KYTR feeder entire

a)For providing loop jumper between 230kv APKM -STERLITE feeder(Loc No:-337 for Rph, Loc No:-338 for Yph & Bph) & 230KVAPKM-KYTR feeder(Loc No:- 15 for Rph,Loc No:-16 for Yph&Bph) to provide the supply source for Sterlite Generation during the fault tripping between TTPS & Sterlite SS for replacement of existing 2Nos BUS & 1No Line isolators,jumpers,droppers ,busbar erection and civil works including damaged RCC structure beam demolitionwork of Sterlite feeder.

During the LC period 230KV APKM-STERLITE feeder & 230KV APKM-KYTR feeder Breaker on both ends will be under handtripped condition,for which concurrence obtained from EE/O/PSQ,EE/O/Kavanoor,EE/O/400KV/KYTR &EE/P&C2/TIN. Note:- After completion of temporary loop jumper providing work ,230kv APKM-Sterlite feeder will be radially fed from APKM-KYTR #. Line islolator of 230KV APKM-STERLITE feeder on both ends will be in open condition.Whenever 230 Sterlite -TTPS # is tripped the 230 KV supply will be extended to 230 KV Sterlite SS through 230 KV Anuppankulam-Kayathar # temporarly(by Loop jumper arrangement)and once the 230 KV Sterlite-TTPS # is normalised the 230 KV Anuppankulam -Kayathar supply will be disconnected to 230 KV Sterlite SS.


ANUPPANKULAM 230 KV

230KV Anuppankulam - Sterlite feeder & Auto Transformer - II HV-II isolator (6-89)

For Replacement of existing 2 No's Bus & 1 No. line isolators,jumpers,droppers, bus bar erection and civil works including damaged RCC structure beam demolition work.( Augmentation of 100MVA to 160MVA Auto Transformer work) Note: lc From 15 Hrs on 02-08-2017 to 9 Hrs on 11-08-2017

During the LC period 230KV Anuppankulam- Sterlite feeder on both ends will be under tripped condition. Auto Transformer - II, HV - II, LV - II will be hand tripped condition.110KV Aruppukottai SS loads will be transferred to 110KV Kavanoor - Kamuthi feeder and 110KV APKM - PSQ # Radial fed from other end.Hence No SS affected.


ANUPPANKULAM 230 KV

110 KV APKM - RJPM - I feeder Br., CT. and Line switch only.

During the LC period the 110 KV Vembakkottai SS (AB switch towards APKM SS WILL BE KEPT OPEN ) load will be transfer to 230 KV Nallamanaickenpatti SS. Hence no SS will be affected.

PONNAPURAM 230 KV

Subject to the wind generation, 1.110KV PNPM SS GC-II will be feed from 110KV Ingur - II # Hence No SS will be affected.

KARIAMANGALAM 230 KV

Teed protection, series primary test and BUS I and Bus II Bus bar protection IN and OUT by P&C wing

OCC approval to be obtained

Ulundurpet 230 KV

Total shutdown maintenance on 230/110 KV Auto Transformer.

It is proposed to avail total shutdown maintenance on 230/ 110 KV Auto Transformer , HV,LV,Breakers , Isolators,110KV Feeder Breakers, Isolators maintenance work, on that day Ulundurpet 110/33-11 KV SS load will be fed by Villupuram Auto SS roughly about 24 MW & Ko-Poovanur SS load will be fed Devyakuruchi Auto SS -by Neyveli TS I - Deviyakurichi feeder. 110 KV Thiyagadurugam SS,110 KV Nagalur SS and 110 KV Pillayarkuppam SS are proposed to be carried out total shutdown maintenance work .

S.P.KOIL 230 KVKORATTUR 230 KVKADALANGUDI 230 KV

1)For annual relay testing work at Mayiladuthruai ss end. 2)Line inspection and rectification work


110 kv 110 kv sipcot II -palladam # section between ingur 230 kv ss and periyandipalayam ss

Takeoff tower & cut point jumper tightening work on 110 kv ingur-sipcot II # section between ingur 230 kv ss and sipcot II ss.

1)No ss will be affected during LC period.2)110 kv sipcot II ss avail total shutdown on 02/08/2017.

UNJANAI 230 KV

110KV Nallur-Jedarpalayam#line portion between Jedarpalayam and Kabilarmalai

Flashed over disc insulator replacement work

LOWER METTUR 1

BHAVANISAGAR MHPH 110 KV MICRO-MOYAR FEEDER MICRO END

For GRT Annual Relay Tests in 110 KV Micro-Moyar Feeder, Micro End at MHPH / Bhavanisagar

1. During LC period, 110 KV Micro-Moyar Feeder, Micro End breaker only will be hand tripped. The feeder will be radially fed from Moyar end. Hence no SS will be affected.2. During LC period, power evacuation will be done thorough 110 KV Micro-Bsr SS Feeder. Hence, generation loss will not arise.

Inter loads fed from Gobi

DEVIAKURICHI 230 KV

1)Puthanchandai 230KV SS Namagripet feeder monthely maintenances work Breaker,CT ‘s and Namagripet 110KV SS availing total shutdown on that day .2)Deviakurichi 230KV SS radial fed from upto Namagripet 110KV SS End 3)There will be no interruption of supply any other SS.

UDUMALPET 230 KV

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT I & II FEEDERS

Approved one by one

UDUMALPET 230 KV

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT II&III FEEDERS. LC will be availed after 110 KV Udt Link III # LC on the same day(one after another)

Approved one by one

During LC period No SS will be affected.Necessary concurrence obtained from SE/EEDC/Erode

TAKEOFF tower and cut point jumper tighening work and line maintanance work.

no ss will be affected during LC period.110 kv sipcott II ss availing total shutdown on 02/08/2017.

SIPCOT 2 TSD and sub to ISPAT concurrence for voltage

KAYATHAR 230 KV

110 KV Kayathar - Eppodumvendran Feeder, Breaker with CT and entire line

a) For Monthly Maintenance workb) Tower to Tower Inspection work

During the LC period, other end also avails LC and there will be no supply in the entire line. Hence no ss affected


THIRUVARUR 230 KV

Line Premansoon Inspection and rectification work, Breaker, CTs & isolator maintenance work

During the LC period the 110KV Thiruvarur - Narimanam II feeder will be in service. Hence there will be no interruption of supply to any other SS.


110 KV OKM-Thudiyalur 2 Feeder S/B 110 KV Somayampalayam SS to 230 KV Thudiyalur SS

During the LC period 110 KV OKM-TDLR 2 feeder kept radial from 230 KV OKM SS.Hence no ss will be affected.

Inter loads fed from OKM

Ulundurpet 230 KV

It is proposed to avail line clear TS II - 230 KV Ulundurpet feeder for carrying out the relay test by GRT / Villupuram . So, on this day 230KV Neyveli TS-II feeder Breaker ,Isolators and CTâ€™S Maintance work to be Carried out. The Ulundurpet Auto SS (except 110KV Kovanur feeder) load roughly 50 MW to be met out by Auto SS Villupuram and 110KV Ko-Poovanur feeder load (10MW) will be fed by Deviyakurichi Auto SS.

Ulundurpet 230 KV

It is proposed to avail line clear TS II - 230 KV Ulundurpet feeder for carrying out the relay test by GRT / Villupuram . So, on this day 230KV Neyveli TS-II feeder Breaker ,Isolators and CTâ€™S Maintance work to be Carried out. The Ulundurpet Auto SS (except 110KV Kovanur feeder) load roughly 50 MW to be met out by Auto SS Villupuram and 110KV Ko-Poovanur feeder load (10MW) will be fed by Deviyakurichi Auto SS.

KARUVALUR 230 KV

Final Protection system checking to be attended by AEE/P&C/TDLR and final bay checking by GCC/Cbe wing for commissioning of new 110kV Nambiyur #

1.Monthly maintenance 110 KV salem -I feeder will be fed radially from salem end .(110 KV Udayapatty SS is availaing TSD on 31.08.2017).

New 110kV Nambiyur # commissioning works

KARUVALUR 230 KV

For protection system system checking by AEE/P&C/TDLR for commissioning of New 110kV Nambiyur #


During LC period(from 11:00Hrs to 13:00Hrs) 110kV Bus bar protection system will be switched OFF. And all other 110kV Feeders will be in service.


Durin the above shutdown period the 230KV SVC - SIPCOT Feeder will be out of service

THUDIALUR 230 KV

Sub to kundah generation





NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

101 Chennai 58630 230 KV For monthly maintenance works. Possible Thu, 03/Aug/2017 10:00 Thu, 03/Aug/2017 17:00 1 Approved

102 Madurai 58551 110 KV 110KV feeder breaker only(Bay 102) No interruption to any SS since feeder not commissioned Thu, 03/Aug/2017 10:00 Thu, 03/Aug/2017 14:00 1 Wrong entry

103 Madurai 58579 110 KV Thu, 03/Aug/2017 8:00 Thu, 03/Aug/2017 16:00 1 wrong entry Wrong entry

104 Madurai 58583 110 KV NOT POSSIBLE Thu, 03/Aug/2017 8:00 Thu, 03/Aug/2017 16:00 1

105 Madurai 58944 230 KV POSSIBLE Thu, 03/Aug/2017 8:00 Thu, 03/Aug/2017 14:00 1 Approved SGC

106 Madurai 58976 230 KV POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

107 Erode 58983 110 KV For Monthly mainteance work During the LC period station VAR Load cater by Capacitor Bank II Approved Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 15:00 1 Sub to grid voltage Approved

108 Erode 59005 KUNDAH PH6 30 MW UNIT UNIT IS NOT IN STANDBY CONDITION Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

109 Erode 59007 110 KV 110KV Ingur feeder Breaker, CTs and line Isolator. monthly maintenance work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 14:00 1 Approved

110 Madurai 59026 400 KV NOT POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

111 Madurai 59084 110 KV on 110KV KKDI-ALKL # S/B A.Thekkur & S.Pudur. Tree Cutting Work. POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved SGC

112 Erode 59189 110 KV PYKARA For monthly maintenance work nil Possible Thu, 03/Aug/2017 8:00 Thu, 03/Aug/2017 17:00 1 Approved

113 Chennai 58681 230 KV 230KV SVC-Sipcot feeder Lines LC and Jumper Tightness work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved



116 Madurai 59274 110 KV For TrtoTr inspection &LMW POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

117 Erode 58714 230 KV Salem 400 KV Monthly maintenance work Both End Monthly Maintenance Work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved


119 Madurai 59408 110 KV LINE MAINTENANCE WORKS POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved SGC

120 Erode 59420 110 KV Monthly Maintenance Work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

121 Erode 59440 230 KV 230KV KR Thoppur – Pllakkapalayam feeder Railway crossing jumpers checking work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

122 Madurai 59524 110 KV 1)Maintenance work 2)Line inspection work POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 7:00 1 Approved SGC



125 Erode 59560 230 KV Both end Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 14:00 1 Approved

126 Erode 59621 230 KV KUNDAH PH3 230 KV PH3 to Karamadai Feeder For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Thu, 03/Aug/2017 8:00 Thu, 03/Aug/2017 17:00 1 Approved

127 Chennai 59674 110 KV 110 KV Neyveli – Villupuram Feeder – I Total shut down oriyur SS Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

128 Erode 59696 230 KV Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 13:00 1 Sub to load Approved

129 Erode 59710 110 KV 110KV Arasur-Karamadai 2 Feeder breaker and CTs. Possible Thu, 03/Aug/2017 14:00 Thu, 03/Aug/2017 16:00 1 Approved

130 Chennai 59722 110 KV 110KV Villupuram- Neyveli- I # Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved


132 Erode 59765 230 KV For monthly maintenance works Possible Thu, 03/Aug/2017 10:00 Thu, 03/Aug/2017 17:00 1 Approved

133 Madurai 59851 230 KV Auto Transformer I POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

SPR SIPCOT(MAMBAKKAM) 230 KV

230KV SIPCOT Mambakkam - SV.Chatram feeder - Breaker, Current Transformers & Line side isolator only.

During the period of shutdown the entire load of 230KV SIPCOT Mambakkam SS [Approximately: 45MW] will be fed from 400KV Sriperumbudur SS through 230KV SIPCOT Mambakkam - Sriperumbudur feeder without interruption.

kumbakonam 230 KV

Monthly Maintenance of breaker and isolator(Line side)

FEEDER NOT COMMISSIONED

KAYATHAR 230 KV

110KV KAYATHAR-SURULIYAR FEEDER SEC B/W KAYATHAR&SANKARANKOVIL

For at location no:1 takeoff (tension point at kayathar 110 KV SS). Jumper Y phase slipped from PILOT INSULATOR. IT will leads to frequent tripping during high wind season, when the jumper comes into arcing distance. Hence it has to be repositioned to its normal position.

During the Lc period,Kalugumalai SS will be radially fed from K.G.Patti.2.Sankarankovil SS will be radially fed from Suruliyar.&Malyankulam SS will be charged from suruliyar to K.g.patti by change over switch at Malayalam SS Hence No Ss affected

KAYATHAR 230 KV

110KV KAYATHAR-SURULIYAR FEEDER SEC B/W KAYATHAR&SANKARANKOVIL

For at location no:1 takeoff (tension point at kayathar 110 KV SS). Jumper Y phase slipped from PILOT INSULATOR. IT will leads to frequent tripping during high wind season, when the jumper comes into arcing distance. Hence it has to be repositioned to its normal position.

During the Lc period,1.Sankarankovil SS will be radially fed from Suruliyar.&Malyankulam SS will be changed from suruliyar to K.g.patti by change over switch at Malayalam SS Hence No Ss affected

LC MAY BE PROGRAMMED ON SUNDAYS AFTER GETTING CONC. FROM SE NCES FOR WIND BLOCK


PERAMBALUR 230 KV

230KV Perambalur-TAQA feeder breaker CT's wave trap & Line Isolater.

For monthly maintenance maintenance work.

During the above period of shut down 230KV Perambalur SS will be radially fed from 230KV Trichy SS

SLDC CHENNAI CONCURRENCE & LOADING OF 230 KV TRY-ALDR # 1

TUTICORIN -SIPCOT 230 KV

On 230KV IBPGL feeder No.(I)breaker with CTs only.

For jumper erection works of Wave Trap & CVT at 230KV SIPCOT SS/ Meelavittan/ Tuticorin end

During the LC period, the 230KV IBPGL Feeder No.II will be in service for their evacuation of power and no interruption in evacuation and necessary consent obtained from M/s. IBPGL and no other SS will be affected.


UNJANAI 230 KV

Capacitor Bank NO I Breaker, CT, Cells and Bank side Isolator only

GENERATING STATIONS

MONTHLY MAINTENANCE LC FOR UNIT

Sub to inflow & grid condition

THINGALUR 230 KV

110KV Kunnathur SS availing total shutdown. The Feeder will be back charged.

Kunnathur TSD and other inter loads fed from Ingur

Kayathar 400 KV

400KV Karaikudi feeder main Breaker (407-52), Reactor Breaker (407-52R) and Tie Breaker (408-52) with entire line

Monthly Maintenance work and Annual Relay Test by AEE/P&C/Kayathar

During the LC period there will be no supply in 400KV Karaikudi feeder main Breaker (407-52), Reactor Breaker (407-52R) and Tie Breaker (408-52) with entire line. Hence no substation affected.

KARAIKUDI 230 KV

During the LC Period 110KV KKDI-ALKL# will be Radial up to 110KV TPR SS. Hence there will be No interruption of Supply.

SUB TO TOTAL S/D OF THUVARNKURICHI SS

110 KV Pykara - B.B.1 # (Upto kattapettu Switching station

Inter loads fed from Karamadai

Sriperumbudur 400 KV

During the period of shutdown 230KV SPR-Sipcot will continued in service

PASUMALAI 230 KV

1).110 KV Pasumalai - Thullukkapatty # Breaker & CT, LI only. 2) Line LC in Section between Pasumalai - Soolakarai SS.

1) Monthly Maintenance Works of BKR & CT,LI 2) Tree cutting works and T-T Inspection works

1) Feeder will be kept radial from Thullukapatty SS upto Soolakarai SS. 2) Hence there will be No interruption of Supply to any SS


SRPUDUR 230 KV

230 KV SRP-KDM # Breaker,CT,Line switch & Line entire

Monthly Maintenance work, Tree clearance work

During the LC period 230 KV SR Puthur - Sankaneri feeder will be in service.Hence No SS will be affected.


CHECKANURANI SW STATION 230 KV

110 KV Alagarkoil-Sempatty I feeder section between 110KV Sholavanthan SS and 110KV Samaynallur SS

During LC period the feeder will be radial fromSemaptty upto Saholavanthan and Radial from Alagarkoil upto Samayanallur SS .


230 KV PALLAKAPALAYAM #CT, BREAKER, BUS & LINE SWITCHES

Other #s will cater the load

TRICHY 230 KV

110KV TRICHY - ALUNDUR I Feeder breaker, CTs and line isolators and line entire

1. For monthly maintenance works . 2. Premonsoon inspection.

During the LC period, a) The other end also availing LC on the same feeder. b) The Intermediate 110 KV Ammapettai SS availing total shutdown for monthly maintenance works. c) All other 110 kv feeders will be in tied condition. d) There will be no interruption of supply to any of the SS.

SUB TO LOAD CONDITON

KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC. BET. VALUTHUR & R.S.MANGALAM (INCLUDING SALAIGRAMAM SPUR LINE)

FEEDER TO BE KEPT RADIAL FROM KARAIKUDI UPTO R.S.MANGALAM. SALAIGRAMAM TO BE AVAILED SHUTDOWN

SUB TO LOAD CONDITION AND TOTAL S/D OF SALAIGRAMAM SS

Udumalpet 110 KV

110 KV UDT –Link – II #r breaker, CT’s and Entire line


Sub to loading of other link feeders

SALEM AUTO 230 KV

1. 230KV KR Thoppur – Pallakkapalayam feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. K.R.Thoppur 400KV SS is availing breaker and line switch LC on that day.4. There will be no interruption to any SS.


KADALANGUDI 230 KV

110KV Kadalangudy-Nidur- Vaithiswaran Koil feeder entire

During the above LC period there is no supply interruption to any SS.110KV Nidur SS proposed total shut down on the sane day.

SUB TO TOTAL S/D OF NIDUR SS

PUDUKOTTAI 230 KV

AUTO I, HV I, LV I AND 110 KV ALANGUDY EID PARRY FEEDER LINE PORTION BETWEEN 230 KV SS AND EID PARRY AND 110 KV ADHANAKKOTTAI FEEDER LINE PORTION BETWEEN 110 KV MALAIYUR SS TO 110 KV VADAKADU SS.

AUTO I, BREAKER,CT,ISOLATORS AND EHT LINE MAINTENANCE WORKS AND GRT TESTING WORKS.

110 KV ALANGUDY SS, 110 KV NAGUDY SS, 110 KV KODIKKULAM SS IN 110 KV ALANGUDY EID PARRY FEEDER AVAILING TOTAL SHUT DOWN AND 110 KV SUPPLY FOR ALIYANILAI SS AND EID PARRY CO GENERATION IS TO BE BACK FED THROUGH 110 KV SIPCOT FEEDER. 110 KV PUDUKKOTTAI SS IN 110 KV SIPCOT FEEDER AND 110 KV VADAKADU SS IN 110 KV ADHANAKKOTTAI FEEDER ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS.


ALUNDUR 230 KV

110KV Alundur - Trichy-I Feeder breaker,CT's, and Line Isolators.

a) Preventive Monthly maintenance work. c) Premonsoon inspection and Tree cutting work. B)Relay testing work.

During the LC period, a) Intermediate 110KV Ammapettai SS also avail total shut down. b) All other 110 KV feeders will be in service. c)There will be no interruption of supply to any other feeder's and ss.


Udumalpet 400 KV

230KV Myvadi-Kadamparai - 1 # Breaker & CT line entire

For Monthly Maintenance and PMI by lines wing.

Sub to Kadamparai generationOther #s will cater the load

CUDDALORE 230 KV

At Loc.129 (T) Top phase Jumper arc and Pin corrosionAt Loc 113,114 & 116 Pin CorrosionAt Loc 84 & 85Flashed over Insulator to be replaced.At Loc 61(S) Bottom phase 2 nos broken disc to be changed to healthy one.

ARASUR 230 KV

230/110KV Auto Transformer-II, HV-II,LV-II breaker,CTs and LAS .


During the L.C Period ,the remaining 3 X 100 MVa Auto transformer will be in service. 110 KV Saravanampatty SS under total shut down.

ARASUR 230 KV


During the L.C period,The feeder will be radial from 230 KV Karamadai SS .

inter loads fed from Karamadai

Villapuram 110 KV

Breaker CTs & Line side isolator maintenance works.

1. The 110KV Neyveli I feeder at Thirupachanur SS towards Villupuram side will be kept open condition.2. The feeder will be kept radial from Neyveli TS-I end.3. Arasur SS in Neyveli-II # is availing total shut down.4. Neyveli-II #, T.V.Malai and Acharapakkam # are in tied condition5. Hence no interruption of supply in any SS.

ANUPPANKULAM 230 KV

110 APKM - T. Kallupatti # Br., CT. and line switch only.

Monthly Maintenance Works of BKR & CT, Line switch only.

During the LC period,110 KV Valayapatti SS, Watrap SS, Erichnatham SS will be availing Total Shut down and 110 KV TTL SS & T. Kallupatti SS load will be transferred to 110KV PPTY feeder, along with solar genenration. Hence no SS will be affected.


PONNAPURAM 230 KV

230 KV Othakkalmandapam # Breaker, CT& Line entire

1.230KV Grid #, Hence No SS will be affected,2.230KV OKM SS will also avail LC at their end.


VALUTHUR 230 KV

For Attending Auto Transformer I HV and LV breakers and it's CT's and isolators Monthly Maintenance work.

During the LC period Auto Transformer II & III will be in service. Hence there is 'no' interruption in power evacuation




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

134 Chennai 59864 110 KV 110KV Pallur Feeder Breaker and ct's only For attending Monthly Maintenance Work. Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 14:00 1 Approved

135 Chennai 59867 230 KV for monthly maintenance work. Possible Thu, 03/Aug/2017 0:00 Thu, 03/Aug/2017 0:00 1 Approved

136 Chennai 59910 110 KV PALLUR FEEDER Line LC Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 4:00 1 Approved

137 Chennai 59926 110 KV Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

138 Chennai 59958 230 KV 230 KV NCTPS-ETPS feeder Jumper tightness at various location All other feeder will be in services Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved


140 Chennai 58752 230 KV 230/110kV,100MVA Auto Transformer - I For routine maintenance work, Possible Thu, 03/Aug/2017 10:00 Thu, 03/Aug/2017 17:00 1 Approved


142 Erode 60058 230 KV Monthly Maintenance work Scheduled shutdown at 110/11KV Peelamedu SS Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 16:00 1 Approved

143 Erode 60061 110 KV 110KV Udt link II # Breaker & Line entire Monthly Maintenance Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

144 Erode 60087 230 KV 230 KV K.R.Thoppur CT, Breaker and Switches For monthly maintenance Other end also availing LC on that day Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

145 Erode 60107 110 KV jumper tightness work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

146 Madurai 58781 230 KV For Monthly Maintenance work POSSIBLE Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

147 Madurai 58796 400 KV kamuthi 400 KV For Monthly Maintenance Work 400KV bus will be have supply through Main breaker. No ss affected POSSIBLE Thu, 03/Aug/2017 10:00 Thu, 03/Aug/2017 17:00 1 Approved

148 Erode 58833 110 KV 110 KV Thammampatty Feeder Breaker, CTs For Monthly Maintenance work Possible Thu, 03/Aug/2017 9:00 Thu, 03/Aug/2017 17:00 1 Approved

149 Chennai 58902 230 KV NOKIA 230 KV For Quarterly maintenance work Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 14:00 1 Approved

150 Chennai 58682 230 KV 230KV Spr-Nokia Feeder Quarterly maintenance work Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

151 Erode 58533 110 KV Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 TDLR110 TSD, Approved

152 Erode 58534 110 KV For PMI works 110 KV koundampalayam Ss will fed from 230 KV CBE SS radialy Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

153 Erode 58637 230 KV MTPS INGUR 230KV FEEDER MONTHLY MAINTENANCE PROGRAMED LC Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

154 Madurai 58876 110 KV NOT POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Not Approved

155 Chennai 58662 230 KV Auto Transformer I Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

156 Madurai 58666 230 KV POSSIBLE Fri, 04/Aug/2017 8:00 Fri, 04/Aug/2017 17:00 1 Approved SGC

157 Madurai 58977 110 KV For monthly maintenance works. POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

158 Erode 59049 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS OTHER END ALSO AVAIL LC ON THAT DAY Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

159 Madurai 59062 110 KV 110KV Kodikuruchi Feeder Breaker with CT For Monthly maintenance work POSSIBLE Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 14:00 1 Approved

160 Erode 59073 110 KV GOBI 230 KV 110 KV Bus at Bhavanisagar SS 110 KV Bhavanisagar ss has programmed total shutdown on 04.08.2017 Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

161 Madurai 59098 230 KV POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

162 Madurai 59134 230 KV 1)Monthly maintenance2)Relay test POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 16:00 1 Approved

MOSUR 230 KV

i)110KV Pallur SS,110KV Takkolam SS,110KV Punnai SS Shutdown availed.ii)Hence there will be no interruption of suplly Please

MOSUR 230 KV

230/110KV Auto Transformer-I, HV-I,LV-I Breaker and cts

i)110KV Punnai,110KV Takkolam, 110KV Pallur Total Shutdown Avail.ii)Hence there will no interruption of supply please.

MOSUR 230 KV

110 KV PALLUR ,110KV TAKKOLAM & 110 KV PUNNAI aviling total shutdown work

THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Vellore I feeder (In between 230 KV Thiruvalam SS to 110KV Karnambut SS).

For new 110KV Line erection work by GCC Wing Katpadi.

During the period of LC i The 110KV Vellore-I Feeder breaker will be in â€ÕFFâ€™ Condition(In between 230 KV and 110 KV Karnambut SS). ii The 110KV Katpadi SS, 110KV Thorapdi SS are availing total Shutdown. iii. 110KV Arcot SS loads will be fed from 230kv Arni SS iv. 110 KV Vellore SS, Sathuvachari SS, Karnambut SS Loads fed through 110 KV Vellore II feeder. Hence there will be no interruption of supply please.

KORATTUR 230 KVTHIRUVALAM 230 KV

i) On Auto Transformer â€“III, HV-III, LV-III Breaker and CTâ€™s, ii)On 110KV Vellore-I Feeder Breaker and CTâ€™s

i) On Auto Transformer â€“III, HV-III, LV-III,110kv Vellore-I Feeder Breaker and CTâ€™s,for monthly maintenance workii) For Re.-Engineering work in the Take off Tower in Thiruvalam-Vellore-I Feeder at Thiruvalam 230KV SS end, to energise new 110KV Karnambut feeder .by GCC Wing Katpadiii)For Monthly Maintenance work

During the period of LCi) The 110KV Katpadi SS and 110Thorpadi SS of VEDC/Vellore are availing Total shutdown on 03.08.2017.The Total shutdown approved and concurrence obtained by Chief Engineer/Distribution / Vellore110KV Arcot SS Loads will fed from 230KV Arani SS, 110KV Vellore SS,Sathuvachari SS and Karnambut SS Loads will fed from 110KV Vellore-II feederii) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II, Auto â€“Tr-IV,HV-IV,LV-IV , will be in service and cater the SS Loads.iii) Auto-Tr-III ,HV-III,LV-III will be in â€ÕFFâ€™ Condition.iv) The 110KV Vellore-I Feeder, will be in â€ÕFFâ€™ v) The 230KV Link-I, 230KV Link-II, 230KV Chittoor interstate feeders, and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

THIRUVERKADU 230 KV

During the period of shutdown 230/110kV Auto Transformer - II will be in service,Hence No Interruption.

PUDUKOTTAI 230 KV

230 KV BUS ON ONE SIDE ON NORTHERN SIDE (ALUNDUR PORTION )

TO REPLACE THE EXISTING ONE HALF OF THE 230 KV MAIN BUS (NORTHERN SIDE ALUNDUR 230 KV PORTION ) ZEBRA CONDUCTOR TO MOOSE CONDUCTOR FOR LINE STRENGTHENING WORKS.

ALREADY LC APPLIED ON AUTO I, HV I, LV I WITH FOLLOWING CONDITION. 110 KV ALANGUDY SS, 110 KV NAGUDY SS, 110 KV KODIKKULAM SS IN 110 KV ALANGUDY EID PARRY FEEDER AVAILING TOTAL SHUT DOWN AND 110 KV SUPPLY FOR ALIYANILAI SS AND EID PARRY CO GENERATION IS TO BE BACK FED THROUGH 110 KV SIPCOT FEEDER. 110 KV PUDUKKOTTAI SS IN 110 KV SIPCOT FEEDER AND 110 KV VADAKADU SS IN 110 KV ADHANAKKOTTAI FEEDER ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS. IN ADDITION TO THAT THE FOLLOWING OPERATIONS ARE TO BE CARRIED OUT TO ISSUE LC ON NORTHERN SIDE OF 230 KV BUS . 230 KV ALUNDUR BREAKER WAS HAND TRIPPED AND TIE OPENED AT PUDUKKOTTAI .230 KV BUS COUPLER SWITCH WAS KEPT OPENED. DURING THE PERIOD 230 KV POWER GRID KARAIKKUDY FEEDER ALSO TO BE TRIPPED FOR OPENING THE 230 KV BUS COUPLER SWITCH AT THAT TIME THE ENTIRE LOADS OF 230 KV PUDUKKOTTAI SS WILL BE AFFECTED. AFTER ISSUE OF 230 KV BUS LC THE AUTO II LOAD IN PUDUKKOTTAI 230 KV SS IS FED FROM 230 KV KARAIKKUDI PG FEEDER ONLY AND OTHER END ALUNDUR 230 KV SS RADIAL FROM ALUNDUR 230 KV SS. FURTHER I REQUEST THAT CONCURRANCE MAY PLEASE BE OBTAINED FROM PG KARAIKKUDY FEEDER FOR HAND TRIPPING ( TIE OPENED AT PUDUKKOTTAI END ) DURING THE ABOVE OPERATION.


COIMBATORE 230 KV

1. Auto transformer -II, 2.HV-II Breaker & CTs, 3. LV-II Breaker & CT's& LAS, 4. 110KV CBE-Peelamedu feeder Breaker & CTs

Peelamedu TSD and sub to Auto 1 load

UDUMALPET 230 KV

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT I&III FEEDERS

Sub to loading of other link feeders


230 KV Gobi # will cater the load

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Thammampatty Feeder(Section between Deviakurichi ss –Godamalai ss)

1)Deviakurichy 230KV SS Thammampatty feeder monthely maintenances work Breaker,CT ‘s and Thedaoor 110KV SS availing total shutdown on that day .2)Pudhanchandai 230KV SS radial fed from upto Gudamalai 110KV SS End 3)There will be no interruption of supply any other SS.

Thadavour TSD and other inter loads fed from Pudansandai

KAYATHAR 230 KV

230/110 KV Auto Transformer II HV II and LV II breaker with CT only

During the LC period Auto Transformer I and III will cader all the loads of Auto transformer II. Hence no ss affected


400KV Abishekappatti feeder Tie Breaker and Future bay Main Breaker with CT (402 Bay & 403 Bay)

SUB TO WIND GEN: APPD IN 133 OCC VIDE ITEM NO.103

DEVIAKURICHI 230 KV

110KV Thedavoor SS availing Total Shutdown. Goodamalai SS; Thammampatty SS and Mettala SS availing back feeding Supply from 230KV pudansandhai SS by closing series switch at110 KV Namagiripet SS towards Deviyakurichy side.

Thadavour TSD and other inter loads fed from Pudansandai

230 KV Nokia-Sriperumbudur feeder breaker, CTs & Line isolators

during the LC Period the 230KV supply Will be fed from 230 KV Nokia -SV Chartram Feeder Without interruption of power supply.

Postponed to 04/07/2017


During the period of shutdown all other 230KV feeders will be continued in service


THUDIALUR 230 KV

110 KV GC Breaker with CTs, BUS PT-II,110 KV PNP Feeder Bay with CTs,110 KV Bottom Bus entire & 110 KV Bus coupler BKR & CTs

For Dismantling of old 110 KV GC Breaker & CTs in Old 110 KV GC Bay & Monthly maintenance works in TDLR 110/ 22 KV SS

1. 110 KV TDLR SS under total shutdown 2. 110 KV PNP feeder fed from 110 KV Pykara feeder 3. 110 KV Madampalayam SS fed from 110 KV MTP SS

THUDIALUR 230 KV

110 KV TDLR SS - CBE-I feeder section between 110 KV Koundampalayam SS and 230 KV TDLR SS & 110 KV CBE-TDLR 2 feeder Entire

Sub to Kavundampalayam TSD


ACHRAPAKKAM 230 KV

110KV OT Patty â€“ Papanasam feederSection between (VK Puram â€“Papanasam)

Earth wire re stringing work at location No.8-10.

110 KV isolator towards Papanasam will be kept opened in VK Puram and 110 KV isolator towards VKPuram will be kept opened in Papanasam.Hence no SS will be affected .

DUE TO WIND GEN AND PPM PWD DEMAND

ECHUR 230 KV

Monthly Maintenance work in Auto Transformer I

At the Time of LC1.Auto Tr I HV and LV Breakers are in H/T condition (Off) and both HV and LV isolators are Kept Open and Auto II in service condition after completion of work Auto Tr I, HV and LV Breakers will be charged and isolators are in closed condition. Hence no interruption of supply to any of the Substation.

KAYATHAR 230 KV

230KV KAYATHAR-TTPS-II FEEDER BREAKER WITH C.T ENTIRE LINE

a) For monthly maintenance work, b) Lines inspection

DURING THE LC PERIOD,THERE WILL BE NO SUPPLY IN ENTIRE LINE HENCE NO SS AFFECTED.

SUB TO TTPS 3 M/C CONDITION AND WIND GEN


On 110 KV Sipcot- Eppodumvendran Feeder breaker with CT's only

During the L.C period 110 KV Aypm SS will be in shut down condition and 110KV OPTM SS will be radially fed from other end No SS will be affected please.


230KV MTPS # Breaker, CT’s, ,Isolators and Line side Isolator and 230 KV main Bus & Auxillary Bus switch


NALLAPPANAYAKANPATTY 230 KV

110KV Kodikuruchi -Kadayanallur feeder radial from 230KV Kodikuruchi SS and concurrence obtained from other end. Hence no SS affected.


GRT conduct relay test on Busbar protection relay

Bhavanisagar 110 KV SS availing TSD

KARAIKUDI 230 KV

230/110KV 50MVA Auto.Tr-II & its allied Equipments.

1)Monthly mtc work.2)Annual Relay test by GRT.

During the LC Period The Auto.Tr-II Load will be Contain Other Auto.Tr-I & III. Hence there will be No interruption ofSupply.


RENGANATHAPURAM 230 KV

1)230/110kv Auto Transformer I(100MVA)Hv,Lv Breaker and CT2)110kv RNPM-SBT I # Breaker & CT and Relay

1)During LC Period 230/110kv Auto Transformer II (100MVA) will be in service and cater station load2)110/22-11kv RNPM SS Avail total shutdown load relief 18MW3)110kv RNPM-SBT I # will be radially fed from SBT end. Hence no interruption to any SS.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

163 Erode 59204 110 KV GOBI 230 KV For monthly maintenance work Postponed Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

164 Madurai 59208 230 KV EE / O / ANPKM has also programmed POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 14:00 1 Approved SGC

165 Madurai 59231 110 KV Tree clearance work POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

166 Madurai 59264 110 KV 110KV SBT - Alagarkovil II # Bkr and CTs only Monthly maintenance work POSSIBLE Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 17:00 1 Approved

167 Madurai 59280 110 KV For TrtoTr inspection &LMW POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

168 Madurai 59357 110 KV then I 230 KV POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved


170 Erode 58716 400 KV Salem 400 KV Monthly maintenance work Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

171 Erode 59400 230 KV MTPS INGUR 230KV Feeder Programmed LC repeat Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 P-id 58637 Repeat

172 Madurai 58726 230 KV NOT POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 16:00 1

173 Erode 59425 110 KV Erode 110 KV Possilbe Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved SGC

174 Erode 59475 110 KV Annul Mtce work Devanurpudur SS will be fed from 110 KV Udumalpet SS Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 14:00 1 Approved

175 Madurai 59548 230 KV NOT POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1

176 Erode 59561 110 KV 110KV Rasipuram feeder CB, CTs and Line Switch. For monthly maintenance works. Postponed Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 15:00 1 Approved



179 Chennai 59601 230 KV 230KV Bus Coupler Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

180 Erode 59699 230 KV Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 13:00 1 Sub to Auto load Approved

181 Erode 59711 110 KV 110KV Arasur-Somanur Feeder breaker and CTs. The 110 KV Somanur SS under total shutdown. . Possible Fri, 04/Aug/2017 12:00 Fri, 04/Aug/2017 14:00 1 Sub to Somanur TSD Approved

182 Erode 59739 Power transformer No I Breaker and Isolators. Monthly maintenance and P&C check. Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 17:00 1

183 Chennai 59744 110 KV 110KV HVF Feeder Alaigment work in B-BUS Isolstors 110KV HVF feeder will not be in service. Possible Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 17:00 1 Approved

184 Madurai 59757 230 KV During the LC period, the other end also availing LC on the same date. POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 14:00 1 Approved

185 Erode 59766 110 KV For monthly maintenance works Postponed Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 17:00 1 Not Approved

186 Erode 59780 230 KV Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

187 Erode 59781 230 KV 230 TBC/BC BREAKER and its CT's For Monthly maintenance work Possible Fri, 04/Aug/2017 4:00 Fri, 04/Aug/2017 14:00 1 Idle CB Approved

188 Madurai 58728 230 KV For Monthly Maintenance Work POSSIBLE Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 17:00 1 Approved

189 Erode 59812 230 KV ICT - 1 To attend the oil leakage by M/S CGL Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved


191 Madurai 59854 110 KV 110 KV Bus-Coupler breaker POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved


193 Chennai 59903 230 KV 230KV S.P.Koil -Kalpakkam -I Feeder Quarterly mtce work & Line mtce work Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

194 Erode 59939 230 KV Auto transformer III & LV III Breaker Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 16:00 1 Sub to Auto load Approved

195 Chennai 59963 230 KV 230 KV NCTPS-ETPS feeder Jumper tightness at various location All other feeder will be in services Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

196 Erode 58757 230 KV INGUR 230 KV 230 kv ingur -MTPS # entire Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 14:00 1 Approved

197 Erode 60020 110 KV PMI and Jumper tightness checking Idle Line portion Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Idle section Approved

110 KV Bhavani Sagar Feeder breaker, CTs and line switch with Entire line

110 KV Karattupalayam SS and 110 KV Bhavanisagar SS may avail total shutdown and Subject to the load condition

110 KV Bus LC recommended at Bhavanisagar110 KV SS

PASUMALAI 230 KV

1) 230 KV Pasumalai - Anupankulam # BKR,CT and LI only. 2).Line Entire.

a) Maintenance Works of BKR & CT,LI b)Tree Cutting and T-T inspection works

SUB TO 230 ANPKM-STER # LC

SRPUDUR 230 KV

110 KV Kodayar- Kayathar & Kodayar - melakallur # section between KDR to MKLR and KDR to Viravanallur

During the LC period 110 KV Viravanallur fed from Kayathar, MKLR fed from other end. Hence no SS will be affected.

SUB TO WIND GEN AND KODAYAR GEN

SEMBATTY 230 KV

During the LC period the feeder will be radial from other end. Hence no interruption to any SS.



110 KV Kinnimangalam - PSQ-III feeder section b/w KMLM &TMGLM

During LC Period There will be no supply in the entire feeder and will be radial from Pasumalai upto Tirumangalam S


110 KV SEMPATTY I & II # BREAKER WITH CT ONE BY ONE.

FOR MONTHLY MAINTENANCE WORK & TREE CUTTING WORK.

DURING THE LC PERIOD SEMPATTY END SUPPLY RADIALLY CHARGED UP TO 110 KV MADURA PURI SS.(110 KV TNI-SMPTY# I SEC BETWEEN THENI & M PURAI SS )


SAMAYAPURAM 230 KV

110KV Samayapuram - Trichy Grid feeder breaker, CT's and line portion between 230KV Thatchankurichy SS and 110KV Poovalur SS.

For Monthly Maintenance work and premansoon EHT line inspection work.

During the above period of shut down a)110KV Poovalur SS avail Total shutdown on the same day. b)110KV Thennur SS,110KV T.V.Koil SS, 110KV Valady SS,M/s.Kothari EHT sc. will be fed radially from 110KV Trichy Grid SS. C). The line Isolator towards 230KV Thatchankurichy SS at 110KV Poovalur ss will be Kept opened and earth switch closed. d)The line Isolator towards 110KV Poovalur ss at 230KV Thatchankurichy SS will be Kept opened and earth switch closed. e)Necessary concurrence has been obtained from M/s.Kothari EHT Service for the interuptions during the switching operations. f)There will be no interuption to any other SS/EHT consumers.


400 / 230 KV ICT I HV & LV SIDE, LAS, CTs, BREAKERS, JUMPERS & SWITCHES

During 400/230 KV Auto Transformer I LC Period, 400/230 KV Auto Transformer II will be in Service Condition. Hence there will be no interruption of supply.

Approved in 133rd OCC vide Sl No. 108


TRICHY 230 KV

230 KV TRICHY - ALUNDUR I Feeder breaker,CTs, Line isolator and line entire.


During the LC period, a) other end also availing LC on the same feeder. b) All other 230KV feeders will be in tied condition. c) There will be no interruption of supply to any of the feeder and SS.

DUE TO LOAD CONDITION:THE ABOVE LC MAY BE PROGRAMMED WITH TOTAL S/D AT TRICHY SS


110 KV ERODE -ELUMATHUR FEEDER BREAKER CT AND LINE SIDE

CONDUCTING ANNUAL RELAY TEST BY AEE/P&C - I /ERODE AND MONTHLY MAINTENANCE WORK

DURING LC PERIOD 110 KV KASPAPETTAI SS WILL BE FED FROM PUGALUR 230 KV SS .SIVAGIRI AND KODUMUDI SS WILL BE UNDER TOTAL SHUTDOWN.NECESSARY CONCURRENCE OBTAINED FROM SE/EEDC/ERODE.

Sivagiri & Kodumudi TSD and Kaspapettai fed from Elumathur

ALIYAR 230 KV

110KV ALR-UDT FEEDER NO-II CB,CT AND LINE SECTION BETWEEN ALR&DEVANOOR PUTHUR SS

Inter loads fed from UDPT110

ALUNDUR 230 KV

230KV Alundur -Trichy I feeder breaker, CT'S, CVT'S and line isolators.

a) Preventive Monthly maintenance work. b) Premonsoon inspection and Tree cutting work. c)Relay testing work.

During the LC period, a) Other end also avail shutdown. b) All other 230 KV feeders will be in service. c) There will be no interruption of supply to any other feeders.

DUE TO LOAD CONDITION:THE ABOVE LC MAY BE PROGRAMMED WITH TOTAL S/D AT TRICHY SS



During LC period110KV Rasipuram SS will be fed through 110KV Salem-Mallur feeder.or will be back fed through 110KV PSI- K.N.Patty feeder.No supply interruption.

Already open due to CT Tan delta high

NEMALITHIPIYAKUDI 230 KV

A)230KV NEMMELI THIPPIYAKUDI-THIRUVARUR FEEDER BREAKER, CT's AND LINE ISOLATOR. B)230KV NEMMELI THIPPIYAKUDI-THIRUVARUR FEEDER ENTIRE

A)FOR MONTHLY PREVENTIVE MAINTENANCE WORK BY AEE/MTC/ NEMMELI THIPPIYAKUDI. B)FOR PREMONSOON INSPECTION BY AE/LINES /PATTUKKOTTAI.

1)DURING THE LC PERIOD 230/110KV NEMMELI THIPPIYAKUDI SS RADIALLY FED FROM 230KV KARAIKUDI SS. 2) NO INTERRUPTION TO ANY SS AND ALL OTHER FEEDERS ARE TIED CONDITION.



110KV PERAVURANI FEEDER BREAKER AND CT's AT 110KV PATTUKKOTTAI SS.

ANNUAL RELAY TESTING BY P&C WING THANJAVUR.

1) DURING THE LC PERIOD, 110KV PERAVURANI (LR: 20MW) AND 110KV SETHUBAVACHATHITRAM SS(LR: 8 MW) AND 110KV KEERAMANGALAM (LR: 12MW) WILL AVAIL TOTAL SHUTDOWN.

VILLUPURAM 230 KV

To carry out Breaker and CT’s Monthly Maintenance Work.

1. Bus coupler Breaker H/T . 2. 230Kv Bus II is in service. 3.Hence No interruption of supply to any SS.

ARASUR 230 KV



During the L.C Period ,the remaining 3 X 100 MVa Auto transformer will be in service. 110 KV Somanur SS under total shut down.

ARASUR 230 KV

For monthly maintenance works and Tan delta measurement of CT'S BY P & C WING / Coimbatore .

SADAYAMPALAYAM 230 KV

Power transformer III & IV in service.Power transformer I loads will be fed from Power transformer III & IV.

Subject to EE/SLDC/Erode Concurrence

Alamathy 400 KVANUPPANKULAM 230 KV

230 KV Anuppankulam - Madurai feeder Br., CT., and Line switch only.

(a) For monthly maintenance work. (b) For replacement of flash over disk in loc No. 255

SUB TO 230 ANPKM-STER # LC

PONNAPURAM 230 KV

110 KV Maruthur # Breaker, CTs & Line up to Maruthur SS

Subject to the wind generation, 1.110KV Maruthur # will be kept radial from 230KV Arasur SS/110KV PDM # up to 110KV Maruthur SS,Hence No SS will be affected.

Wind generation transfer not feasible

KARUVALUR 230 KV

230 Kv Karuvalur - PGCIL feeder Breaker with Line switch

For Monthly maintenance work (OCC Approved) and lines work

230kV KVLR-Karamadai # will be in service and Auto Transformer I & II will be in service

Approved in 133rd OCC vide Sl No. 80

KARUVALUR 230 KV

All 230kV Feeders and Auto Transformer I&II will be in 230kV BUS I and 230kV BUs II is ideal.

VEERANAM 230 KV

230KV Veeranam-Kayathar HVBR,CT &LINESWITCH

During the lc period there will be no supply in the entire feeder concurrence obtained from SE/NCES/TIN.



No interruption of supply, 230KV Karimangalam load fed through 230KV Mettur


THANJAVUR 230 KV

110 KV Thanjavur - Punalkulam feeder Breaker & CT only.

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For Tan-Delta testing works by P&C/Madurai.

During the LC period,1) 110 KV Thanjavur - Punalkulam - Trichy feeder will be radial from Trichy 230 KV SS upto Thanjavur 230 KV SS,2) all other 110 KV feeders will be in tied condition,3) no supply interruption to any SS.


THANJAVUR 230 KV

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For Tan-Delta testing works by P&C/Madurai.

During the LC period,1) all 110 KV feeders will be in tied condition,2) no supply interruption to any SS.

kinnimangalam 230 KV

110KV KNMLM – PASUMALAI III (THIRUMANGALAM)

Monthly maintenance works for breaker and CT

EE/O/CKNI has also programmed Line LC section between KNMLM – TMGLM. During the LC period the feeder will be radial from PSQ SS upto Thirumangalam SS.


S.P.KOIL 230 KV

During period of shutdown, 230 KV S.P.Koil- kalpakkam -II ,Acharapakkam, Echur feeders will be in service

SINGARAPET 230 KV

To carry monthly maintenance work by AEE/MTC/230 KV SS / SPT

During the period of LC, 1) Auto transformer III and LV III breaker will be in off condition 3)The Auto transformer I and II will be in service,4) All the 110 KV feeders will be in service5) 110KV Pappireddipatty SS total shutdown approved and 110KV Ramiyanahalli SS and 110KV Harur SS loads will be fed from Karimangalam SS if necessary and hence no interruption of supply.

KORATTUR 230 KV

Tower to tower premonsoon inspection& priliminary maintanance conducted by ingur lines wing.

no ss will be affected during lc period 230 kv maintanance wing avail breaker LC.


UNJANAI 230 KV

110KV Puthansanthai-Valayapatty # line portion between Senthamangalam SS and Valavanthi SS



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

198 Erode 60062 230 KV Auto transformer. NoI ,HV.I, LV.I entire. Monthly Maintenance Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved


200 Erode 60084 230 KV Possible Fri, 04/Aug/2017 9:00 Sat, 05/Aug/2017 18:00 2 Approved SGC

201 Erode 60108 110 KV jumper tightness work Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Sub to Metala TSD Approved


203 Madurai 58798 110 KV 110KV MANUR FEEDER BREAKER WITH CT MONTHLY MAINTENANCE WORK POSSIBLE Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 17:00 1 Approved

204 Madurai 58854 230 KV 230KV Thiruvarur - Nemmeli Thippiyakudy feeder POSSIBLE Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

205 Erode 110 KV 110KV Bagalur feeder breaker Monthly Maintenance work Possible Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 14:00 1 Approved

206 Erode 230 KV 230/110KV Auto Transformer -1 Monthly Maintenance work Possible Fri, 04/Aug/2017 0.375 Fri, 04/Aug/2017 14:00 1 Approved

207 Madurai 59074 110 KV 110KV Melakallur Feeder Feeder may be tripped both end Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

208 Madurai 58623 110 KV Fri, 04/Aug/2017 8:00 Fri, 04/Aug/2017 17:00 1 Approved

209 Madurai 58974 110 KV For Monthly maintenance work Fri, 04/Aug/2017 10:00 Fri, 04/Aug/2017 13:00 1 Approved

210 Madurai 59065 110 KV 110 KV Kayathar feeder 110 KV Kayathar # radial from Veeravanallur to KDR End. Fri, 04/Aug/2017 9:00 Fri, 04/Aug/2017 17:00 1 Approved

211 Madurai 58687 230 KV Monthly maintenance Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

212 Madurai 59373 230 KV Monthly maintenance work Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

213 Erode 58612 KUNDAH PH2 Possible Sat, 05/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 3 Approved

214 Erode 58535 110 KV 110 KV Capacitor Bank I & II with Br & CTs For Monthly Maintenance works Capacitor bank maintenance will be carried out one after another Approved Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 16:00 1 Sub to grid voltage Approved

215 Madurai 58552 110 KV 110KV Feeder breaker only(bay 103) No interruption of supply to any ss since feeder not comissioned Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 4:00 1 Wrong entry

216 Madurai 58878 110 KV .For special line Patrol work NOT POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

217 Madurai 58588 110 KV POSSIBLE Sat, 05/Aug/2017 8:00 Sat, 05/Aug/2017 17:00 1 Approved

218 Erode 58877 110 KV For monthly maintenance works. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

219 Madurai 58929 110 KV 110KV BUS LC entire POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved SGC


221 Erode 58985 230 KV For monthly maintenance work Station VAR Load cater by Capacitor Bank I Approved Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 15:00 1 Sub to grid voltage Approved

222 Madurai 58931 110 KV POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

223 Madurai 58966 110 KV For monthly maintenance work POSSIBLE Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 13:00 1 Approved

224 Chennai 59020 230 KV Routine Maintenance Works. Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 15:00 1 Approved

225 Erode 59008 230 KV Auto Transformer I,HV I & LV I Breakers with CTs. monthly maintenance work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

226 Erode 59009 110 KV monthly maintenance work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

227 Erode 59056 110 KV INGUR 230 KV 110KV Thingalore # Breaker, CT’s, Isolators MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION Postponed Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1

228 Chennai 59021 110 KV 110KV Veerapuram - Madambakkam # Jumper checking work Madambakkam SS loads fed from 230KV KITS PARK SS. Possible Sat, 05/Aug/2017 5:00 Sat, 05/Aug/2017 12:00 1 Approved

229 Chennai 59035 230 KV 100 MVA AUTO.TR.I Monthly maintenance work 1.110 kv s.p.koil# and 110 kv korattur-i# radial from other end Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 12:00 1 Approved

230 Madurai 59125 230 KV Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 wrong entry Wrong entry

231 Erode 59112 110 KV INGUR 230 KV Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

UDUMALPET 230 KV

3 AUTOS ARE IN PARALLEL . LOADS ARE SHARED WITH OTHER TWO AUTOS.

Sub to Auto load after transferring of CBE-ASR # load

COIMBATORE 230 KV

1.110KV CBE- TDLR-II Entire 2. 110KV CBE-TDLR-I section between 110/11KVKaundampalayam SS and TDLR 3. 110KV CBE-Arasur feeder Breaker & CTs, `

1. PMI works by AEE/lines/Thudiyalur 2.PMI works by AEE/lines/Thudiyalur 3. Monthly Maintenance works

1. & 2. 110/11KVKaundampalayam SS will be fed from 230/110KV CBE SS . 3.Scheduled shut down at 110/11KV Kallimadai SS 4. 110KV CBE-Arasur feeeder loads ( KPR Mill EHT service , Sulur Traction EHT Service wiil be fed from 230KV Arasur SS

Sub to Kavundampalayam TSD

ARASUR 230 KV

230 KV Arasur-PH-II # breaker,CT'S ,Control and relay panels

For changing of RAZOA relay in MAIN -II by MICOM relay in 230 KV PH-II relay panel by P & C wing/Thudialur.


2 Days LC for Main 2 relay replacement

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Thammampatty Feeder(Section between Thammampatty ss –Namagripet ss)

1) Mettla 110KV SS availing total shutdown on that day . 2) Deviakurichi 230KV SS radial fed from upto thammampatty 110KV SS End 3) There will be no interruption of supply any other SS.

KAYATHAR 230 KV

230 KV Kayathar - Veeranam Feeder, breaker with CT and entire line

a) For monthly maintenance workb) Tower to tower Inspection work

During the LC period other end also avails lc and there will be no supply in the entire line. Hence no ss affected


KANARPATTY 400 KV

110KV MANUR SS IS AVAILING MONTHLY MAINTENANCE WORK ON SAME DATE


THIRUVARUR 230 KV

Line Premansoon Inspection and Rectification work, Breaker, CTs and Line side Isolator maintenance work

During the LC period all other 230KV feeders are in tied condition. Hence there will be no interruption of supply to any other SS.


HOSUR 230 kV

Minnagar,Nariganapuram & Bagalur TSD

HOSUR 230 kV

Sub to load after availing TSD

KODAIYAR PH2

Monthly maintenance of breaker,CT & Line Switch

SUB TO WIND GEN AND KOD GEN

KAYATHAR 230 KV

110KV MELAKALLUR -KODAYAR FEEDER ENTIRE LINE

FOR DEFECTIVE DISC REPLACEMENT WORK AT VARIOUS LOCATION.

DURING THE LC PERIOD,THERE WILL BE NO SUPPLY IN ENTIRE LINE HENCE NO SS AFFECTED


Melakallur 110 KV

110 KV Melakallur - Kodayar Feeder breaker with CT only

During the LC period, other end also availing LC. There is no intermediate SS. Hence no ss affected. AE/Lines also availing lc on the same date


KODAIYAR PH2

GRT Annual relay testing, Monthly maintenance of breaker & CT


KODIKURICHY 230 KV

1)230KV Amuthapuram # II Breaker with C.T and all Isolators

EE/O/Amuthapuram Has also appiled L.C on 230KV Amuthapuram # II on same day (04-08-2017) .

LC MAY BE PROGRAMMED ON 05.08.2017 DUE TO 230KYR-VRNM# LC

AMUTHAPURAM 230 KV

230KV Amuthapuram-kodikurichi-2 # with breakers,CT's and its isolators

1) During the LC period there will be NO supply in this feeder. 2) Other End also avail LC on same day. 3) Concurrence obtained from SE/NCES/TIN.

LC MAY BE PROGRAMMED ON 05.08.2017 DUE TO 230KYR-VRNM# LC

GENERATING STATIONS

UNIT-4 GENERATTOR SF6 BREAKER, POWER TRANSFORMER AND ITS ACCESSIORIES

ABB Relay commissioning work and MONTHLY MAINTENANCE WORK

SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION

3 days LC and sub to normalization of Unit 3 AOH

THUDIALUR 230 KVkumbakonam 230 KV

Monthly Maintenance of feeder breaker and isolator (Line side)

NOT COMMISSIONED

ACHRAPAKKAM 230 KV

110KV Kodikurchi-Veerasigamani â€“I feederSection between (Kodikuruchi- Echantha SS)

1.110 KV Echantha SS will be fed from 110 KV Kodikuruchi-Veerasigamani feeder â€“II by closing the Isolator towards Veerasigamani at Echantha SS end.2.110 KV isolator towards Kodikuruchi will be kept opened in Echantha SS and 110 KV Isolator towards Echantha will be kept opened in Kodikurichi SS .Hence no SS will be affected .

KAYATHAR 230 KV

110KV MELAKALLUR-TALAYUTHU FEEDER SEC B/W MELAKALLUR&PALAYAPETTAI

FOR DEFECTIVE DISC AT VARIOUS LOCATIONS

DURING THE LC,PALAYAPETTAI ss WILL BE RADIALLY FED FROM TALAYUTHU HENCE NO SS AFFECTED



110 KV OKM-R.S.Puram 1 Feeder (Breaker, CT's, Line switch)

During the LC period 1)110 KV Ukkadam SS under total shut down.2)110 KV OKM-R S Puram 1 feeder loads will be transferred to 110 KV OKM-R S Puram 2 feeder.3)Hence no ss will be affected.

Ukkadam TSD and other inter loads transferred to RS Puram #2

THIRUVARUR 230 KV

Erection of Bus sectionalizing isolator erection work, commissioning of 110KV Bus Coupler Breaker -II Work, and erection of 1No. 110KV Bus-II PT

During the LC period the following SS has programmed total shutdown on the same day. Hence there will be no interruption of supply to (1) 110 KV Nagappattinam SS (2) 110 KV Thiruthuraipoondi SS (3)110 KV Thirukuvalai SS (4)110 KV Voimedu SS.(5) 110KV Surakudi SS - Karaikkal (6)110 KV Kovilvenni SS (7)110KV Vaduvur SS (8) 110 KV Kodavasal (9) 110KV Thiruvarur SS.(10) 110 KV Thiruvarur - Thanjavur feeder breaker will be opened at Thiruvarur end.110 KV Thanjavur urban SS,110KV Manimandapam SS, 110 KV Mariamman kovil SS, 110 KV Ayyampettai SS, 110 KV Poondi SS and loads will be fed radially from 110KV Grid SS/Thanjavur. (11) 110 KV Mannargudi SS load will be fed radially from T(K)GTPS, 110KV Mannargudi feeder tie opened at Thiruvarur end. (12) 110 KV Peralam SS and 110KV Neelagudy SS load will be fed radially from 110KV Grid SS Mayiladuthurai, 110KV Mayiladuthurai feeder tie opened at Thiruvarur end. (13) 110 KV Kumbakonam SS will be fed from KGTPS. (14) 110KV KGTPP feeder tie opened at Thiruvarur end. (15) 110 KV T(K)GTPS express feeder tie will be opened at Thiruvarur end. (16) 110 KV Narimanam I and II feeders will be tripped at Thiruvarur end. (17) 110 KV T.R.Pattinam feeder will be tripped at Thiruvarur end. (18) Auto Transformer I , II & III will be kept isolated. (19) All the 230 KV feeders will be in tied condition. (20) 110KV back feeding supply to be availed from 110kv Thiruvarur – KGTPS feeder through 230KV SS

SUBJECT TO TOTAL SHUTDOWN AND CONC. FROM ALL

THIRUVARUR 230 KV

230KV Thiruvarur - Thanajvur feeder & 230KV Thiruvarur - PPN feeder

Errection of 230 KV Single circuit line on DC Tower for Power evacuation from Thermal Power Plant of by M/s. Nagai Power Pvt. Ltd. –Stringing of conductor over the Existing (Above) feeders.

During the LC period 110KV BUS LC entire at 230KV Substation, Thiruvarur. Hence there will be no interruption of supply to any other SS.


UNJANAI 230 KV

Capacitor Bank II, Breaker, CT, cells and Bank side Isolator only

THIRUVARUR 230 KV

110KV Thiruvarur - Thanjavur feeder (Line portion between 230KV SS, Thiruvarur and 110KV SS, Kovilvenni)

Line premansoon inspection and rectification work, Breaker, CTs and Line side isoaltor maintenance work


Melakallur 110 KV

110 KV - Melakalllur - Thalaiyuthu # breaker with CT onyl

During the LC period, the 110 KV Thalaiyuthu Feeder will be radial from Thalaiyuthu to Pettai SS. Hence no ss affected. AE/Lines also availing LC on the same date


TONDIARPET 230 KV

50 MVA Power Transformer - 1 and 33KV Kodungaiyur Feeder One by one.

During the period of shutdown,Except 50 MVA Power Transformer - 1 and 33KV Kodungaiyur feeder will not be in service and all other feeders and equipments will be in service.

Approval by CBD

THINGALUR 230 KV

110KV Velampalayam SS availing total shutdown. No SS will be affected

Velampalayam TSD and sub to Auto load

THINGALUR 230 KV

110KV Arasur feeder, Breaker and CTs with line Isolator.

110KV Velampalayam SS availing total shutdown. No SS will be affected

Velampalayam TSD, NAP and Perumanallur transferred to ASR

Auto trf 1 LC recommended at Thingalur

subject to EE/SLDC/Erode Concurrence

KADAPPERI 230 KVKADAPPERI 230 KVSANKANERI 230 KV

230/33KV PowerTransformer-II,CTs,HV&LV Breakers.


During the LC Period PowerTransformer-II willnot beinservice. PowerTransformer-I&III will be carriedout the EntireLoad.

110 KV Erode – New Suriyampalayam # entire for Jumper tightness work and tower loc No:179

for jumper tightness work at tower loc No:179

1.No SS will be affected during the above LC Period. 2.110 KV Suriyampalayam SS has programmed total shutdown on 05.08.2017 3.110 KV New Suriyampalayam SS supply will be fed from Barrage IV PH

Old Suriyampalayam TSD and SWTP fed from BPH4



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

232 Madurai 59123 230 KV For monthly maintenance purpose. POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

233 Madurai 58692 110 KV Monthly maintenance NOT POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

234 Erode 59227 110 KV GOBI 230 KV Capacitor Bank I Breaker and CTs only Capacitor bank II is in service,subject to the voltage condition Approved Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Sub to grid voltage Approved

235 Erode 59190 PYKARA Unit 1 For monthly maintenance work nil Possible Sat, 05/Aug/2017 8:00 Sat, 05/Aug/2017 17:00 1 Unit 1 under standby Approved

236 Madurai 59232 110 KV NOT POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 15:00 1

237 Chennai 59199 230 KV 100MVA Auto Transformer-II Maintenance work Other Three Auto transformers will be in service Possible Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 17:00 1 Approved

238 Madurai 59230 110 KV POSSIBLE Sat, 05/Aug/2017 11:00 Sat, 05/Aug/2017 14:00 1 Approved SGC

239 Madurai 59282 110 KV POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 SUB TO WIND GEN Approved

240 Erode 59320 110 KV Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

241 Chennai 59385 110 KV ARNI 230 KV Pending Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

242 Madurai 59348 110 KV PERIYAR For Monthly Maintenance Work POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 13:00 1 Approved SGC

243 Chennai 59384 110 KV ARNI 230 KV For Monthly maintenance work. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved


245 Erode 59435 110 KV Erode 110 KV repeat Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 P-id 59428 Repeat

246 Erode 58717 230 KV Salem 400 KV monthly maintenance work Both end monthly maintenance work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved SGC

247 Erode 59428 110 KV Erode 110 KV MONTHLY MAINTENANCE WORK Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

248 Erode 59444 230 KV 230KV KR Thoppur Singapuram feeder Tension point jumpers checking work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved SGC

249 Madurai 59445 230 KV 100MVA AUTO II, HVII,LVII breaker,CT@LAS For monthly maintenance work POSSIBLE Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 14:00 1 Approved

250 Madurai 59454 110 KV 110KV Alkl-Pasumalai # breaker with C.T. For monthly maintenance work. POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 11:00 1 Approved


252 Madurai 59526 230 KV 230KV Kadalangudy-Neyveli TS-II feeder 1)Maintenance work 2)Relay testing work NOT POSSIBLE Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 17:00 1

253 Erode 59498 230 KV Monthly maintenance work. Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

254 Erode 59521 110 KV PMI work. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved


256 Erode 59562 230 KV Both end Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

257 Erode 59566 110 KV 110KV Bus coupler CB and CTs. For monthly maintenance works. possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 15:00 1 Approved

258 Chennai 59605 110 KV 110KV Villupuram – Maduapakkam – II # Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

259 Chennai 59608 110 KV Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

260 Erode 59611 230 KV 230KV Bus coupler breaker Monthly maintenance work During the LC period 230KV Main Bus will be in service Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Idle CB Approved

261 Chennai 59612 110 KV 110KV Villupuram – Maduapakkam – I # Possible Sat, 05/Aug/2017 14:00 Sat, 05/Aug/2017 17:00 1 Approved

262 Chennai 59622 230 KV 230KV Cuddalore- Neyveli TS-1# For monthly maintenance works Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

263 Erode 59624 230 KV KUNDAH PH3 230 KV PH4 TO THUDIYALUR FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Sat, 05/Aug/2017 8:00 Sat, 05/Aug/2017 17:00 1 Approved

264 Erode 59662 230 KV 230 KV PGCIL - Arasur Link 2 feeder Breaker& CTs. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 11:00 1 Approved

SANKANERI 230 KV

230KV SANKANERI-KAYATHAR FEEDER BREAKER,CTS & LINE SWITCHES.

During the LC Period There will be no supply in the Entire Feeder.Other end also LC applied.


KODIKURICHY 230 KV

1)110 KV Veerasigamani# I Breakers with C.T and Line Isolator

For monthly maintenance work and for GRT Relay testing work

GENERATING STATIONS

SRPUDUR 230 KV

110 KV SRP-ARMI I # section between SRP to Perungudi and 110 KV SRP - ARMI II # section between SRP-RDPM

At ISRO complex at tower no 39 & 40 Tower members/parts to be Tightend & Earth wire to be fitted in its original position,Annual relay testing work

During the LC period The 110 KV SRP - ARMI I # radial from ARMI upto Perungudi (incl). 110 KV SRP-ARMI II # radial from ARMI upto RDPM.Concurrence obtained from ISRO authority to shut down at ISRO 110 KV SS.Hence no SS will be affected.

DUE TO WIND GEN:IF IT IS EMERGENCY NATURE, THE ABOVE LC MAY BE PROGRAMMED ON SUNDAYS AFTER GETTING CONCURRENCE FROM SE/NCES/TIN & ISRO


THARAMANI 230 KV

Subject to CBD Concurrence

PASUMALAI 230 KV

110KV Pasumalai - Alagarkoil # 1 section between Vandiyur SS & Othakadai SS

To attend the Glow in the Incoming & Outgoing isolators at IT Park SS and maintenance of Incoming & Outgoing isolators at Industrial Estate SS by the Distribution wing.

1) The feeder will be kept radial from Pasumalai SS upto Vandiyur SS feeding Avaniyapuram SS, Anuppanadi SS and Vandiyur SS 2) The feeder will be kept radial from Alagarkoil SS upto othakadai feeding Othakadai SS only. 3) Industial Estate SS and IT Park SS will be under Total Shutdown 4) Hence No interruption to any SS. LC will be availed by AE/Lines/Pasumalai and Sub-LC issued to AE/SS/Industrial Estate & AE/SS/IT Park

SUB TO LOAD CONDITION AND AFTER NORMALIZATION LC AT ALKL


110 KV Kinnimangalam - Theni-I feeder section b/w CKNI& Valanthur

For TrtoTr inspection & flashover disc replacement work

During LC period ,110 KV Ckni SS radial from 230KV Kinnimangalam and 110 KV Valanthur SS radial from 230 KV Theni SS.

PALLADAM 230 KV

110 KV PALLADAM - PALLADAM # Breaker and LINE ENTIRE

To carrtout monthly maintenance work on equipments by AEE/Maintenance/Palladam and Line mtce work by AEE/Lines/Palladam

During the LC period 1). 110 KV Palladam SS will be fed from 230 KV Arasur 2). No other SS will be affected

Sub to transfer of Palladam110 to ASR

110 KV Arni â€“ Kanchipuram #,110KV Breaker,C.T.'s & line side Isolator.

Monthly Maintenance work and Cut point Jumper tightness checking work by Lines wing Arni.

The 110KV Vembakkam SS availing Total shut down. 110KV Mangal SS loads will be transferred to 110 KV Kanchipuram SS.Hence no interruption of supply

110 KV Periyar - Theni-1 Feeder Breaker with CTs only.

During the LC period the feeder will be radial from Theni up to Periyar. No SS will be affected.


110KV Arani - Singarapet I Feeder Breaker,C.T.'s and line Isolator

At present 110KV SPT I # is in H/T condition and 110 KV Polur SS availing total Shut down.

KAYATHAR 230 KV

230KV KAYATHAR-SANGANERI FEEDER BREAKER WITH C.T & ENTIRE LINE

FOR a) For monthly maintenance ,b)FOR RECTIFYING THE CONDUCTOR STRAND CUTS NEARBY THE COMPRESSIVE TENSION FITTING AT LOCATION 60



110 KV ERODE-SWTP FEEDER BREAKER AND CT LINE SIDE BETWEEN 110 KV ERODE SS AND 110 KV SWTP SS

CONDUCTING ANNUAL RELAY TEST BY AEE/P&C-I /ERODE AND MONTHLY MAINTENANCE WORK

DURING LC PERIOD 110 KV SURIAMPALAYAM SS WILL BE UNDER TOTAL SHUTDOWN

230 KV SINGAPURAM # CT, BREAKER, BUS & LINE SWITCHES

Sub to DKY - TAQA # tie

110 KV ERODE -THIRUVACHI FEEDER BREAKER ,CT AND LINE ISOLATOR

DURING LC PERIOD 110 KV METTUKKADAI SS WILL BE UNDER TOTAL SHUTDOWN

Mettukadai TSD and Thiruvachi fed from Ingur

SALEM AUTO 230 KV

1. 230KV KR Thoppur – Singapuram feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends.3. Both ends are availing breaker and line switches LC. 4. There will be no interruption to any SS.


ALAGARKOIL 230 KV

During the L.C period another one 100MVA AUTO I will be in service ,further INDUSTRIAL ESTATE, KOTTAMPATTY SSIT PARK SS, THANIAMANGALAM SS will be under shut down, if,necessary 110KV ALKL-Sempatty -1 # tie will be opened at ALKL END.


ALAGARKOIL 230 KV

feeder will be radial from other end ,further 110KV Industrial estate SSwill be under shutdown if necessary Anupanadi SS load will be transferred to 110KV PSQ-SAKTHI SUGAR Feeder.


UDAYATHUR 230 KV

230/33KV POWER TR3,HV & LV BREAKER AND 33KV SRF 1 TO 4

MONTHLY MAINTENANCE WORK & 33KV LV 3 BUS MAINTENANCE

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO 33LV SRF1 TO 4. IF WIND GENERATION AVALIABLE ON THE DAY THE POWER TR.3 LOADS WILL BE TRANSFERRED TO OTHER POWER TRS AND POWER TR3 ONLY TAKEN FOR MTCE WORK


KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS.230KV Thiruvarur SS proposed 110KV Bus LC on the same day.All other 230KV feeders are in tied condition at Kadalangudy end.

DUE TO 230 TVR-TJR# AND 230 TVR-PPN# AND 230 ALDR-TJR# 1 LC


SALEM AUTO 230 KV

230KV Singarapet feeder & 110KV Capacitor Bank-I,II Breaker, CTs, Line isolator and Capacitor.

1.230KV Singarapet feeder LC will be availed at both end. 2.3Nos 230KV feeders will be in service. 3.110KV Capacitor Bank-I and II will be in hand trip condition. 4.There will be no interruption to any SS or feeder.

Possible, Approved

Other #s will cater the load and sub to grid voltage

THINGALUR 230 KV

110KV Thingalur - Arasur Feeder Section between 230KV Thingalur ss and 110KV Perumanallur SS

1). 110 KV Velampalayam SS availing Total Shutdown.2). 110 KV NAP and Perumanalur SS will be fed from 230KV Arasur SS.Hence NO SS will be affected.

Velampalayam TSD, NAP and Perumanallur transferred to ASR

ALUNDUR 230 KV

230KV Alundur - Thanjavur-I Feeder Breaker, CT's, CVT's and Line Isolators.

a)Monthly Preventive Maintenance work. b)Premonsoon Inspection and tree cutting work. c)Relay Testing Work.

During the LC period, a)Other end also avail shutdown. b)All other 230 KV feeders will be in service. c)There will be no interruption of supply to any other feeders.


Udumalpet 400 KV

230KV Myvadi-Kadamparai - 2 # Breaker & CT line entire


Sub to kadamparai generation


During LC period110KV Bus Coupler breaker will be hand tripped.110KV West and East Buses will be fed by Auto-I & Auto-II separately/respectively.No supply interruption.

Already under open due to high tan delta value

VILLUPURAM 230 KV

To carry out Breaker and CT’s Monthly Maintenance Work

1)Vanur SS and Thiruchitrambalam SS availing total shut down2)Hence no interruption of supply to any Ss

VILLUPURAM 230 KV

110KV Villupuram – Maduapakkam – II #(between Madurapakkam & Thiruchitrambalam)and 110 KV Villupuram - Madurapakkam II # (between Villupuram 230 KV SS and Vikravandi SS)

For inspection of jumper joints at various locations in the line between Madurapakkam & Vanur SS and For replacement of the worn out jumper at take off tower

1.) The 110 KV Villupuram - Madurapakkam II # will be kept off between Villupuram 230 KV SS and Vikravandi.2.) The 110 KV Vikravandi SS will be back fed vide 110 KV Madurapakkam I # by closing the bus coupler at Madurapakkam SS.No interruption of supply to any SSand1.) The 110 KV Villupuram - Madurapakkam II # will be kept off between Villupuram 230 KV SS and Vikravandi.2.) The 110 KV Vikravandi SS will be backfed vide 110 KV Madurapakkam I # by closing the bus coupler at Madurapakkam SS.3. 110 KV Madurapakkam, Vanur and Thiruchitrambalam substations availing total shut down. No interrupption of supply to any SS

METTUR AUTO 230 KV

VILLUPURAM 230 KV


1. MudurapakamSS availing Total shutdown.2.Hence No interruption of supply to any SS.

CUDDALORE 230 KV

All the loads will be transferred to 230 KV Cuddalore â€“ TAQA # . Hence no interruption of supply.


ARASUR 230 KV

For Monthly maintenance Works and CT Tan delta measurement work.


Approved vide Sl No 87 in 133rd OCC



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

265 Erode 59714 110 KV 110KV Capacitor Bank-III breaker and CTs. Approved Sat, 05/Aug/2017 14:00 Sat, 05/Aug/2017 16:00 1 Sub to grid voltage Approved

266 Madurai 59758 110 KV NOT POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 13:00 1 DUE TO WIND GEN Not Approved

267 Chennai 59677 230 KV 230KV Neyveli TS – I Cuddalore Feeder Alternate supply from 230 KV TAQA-CUD Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

268 Erode 59712 110 KV 110KV Arasur-Thudialur Feeder breaker and CTs. Possible Sat, 05/Aug/2017 11:00 Sat, 05/Aug/2017 13:00 1 Approved

269 Chennai 59831 230 KV AthipetLines All other feeder in service. To be discuss Sat, 05/Aug/2017 6:00 Sat, 05/Aug/2017 9:00 1 Approved

270 Erode 59813 400 KV ICT - 4 to attend the Oil leakage by M/S BGR Pennagaram load fed through 230KV Karimangalam SS Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

271 Chennai 59820 110 KV 110 KV KTR- Annanagar feeder For general maintenance work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

272 Chennai 59839 110 KV 110 kv Ulundurpet feeder 110 kv Ulundurpet feeder Ulundurpet 110 KV SS Total shutdown maintenance work. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

273 Madurai 59853 110 KV 110KV Valudur - Perungulam feeder entire. POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

274 Chennai 59869 110 KV 110KV Thiruvallur Feeder Breaker and CTS only For monthly maintenance work. Hence there will be no interruption of supply please. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

275 Chennai 59870 230 KV for monthly maintenance work. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved




279 Chennai 59904 230 KV 230KV Kalpakkam -Echur Feeder For Line mtce Work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

280 Chennai 59912 110 KV 110 KV THIRUVALLUR FEEDER Line LC 110 KV THIRUVALLUR TOTAL SHUTDOWN WORK Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved



283 Chennai 59929 230 KV 230KV Thiruvalam - Link I feeder. For EHT Line Maintenance Works. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

284 Erode 59943 230 KV 230 KV Salem # Breaker, CTs & line isolators Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 16:00 1 Approved

285 Madurai 60001 230 KV Auto Transformer II; HV-II; LV-II NOT POSSIBLE Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 17:00 1 DUE TO TVR BUS LC


287 Madurai 58741 230 KV TTPS 230KV TRANSFER BUS ENTIRE POSSIBLE Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

288 Erode 58758 230 KV INGUR 230 KV 230 kv ingur-Thingalur # entire Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

289 Erode 60065 110 KV 110KV Eastern Bus Monthly Maintenance Postponed Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Not Approved

290 Erode 60089 110 KV 110KV Barriage-IV # CT,Breaker For monthly maintenance Radially fed from other end Postponed Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1



293 Erode 60102 110 KV It is Tie feeder hence there is no interruption of power supply. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

294 Erode 58834 110 KV For Monthly Maintenance work Capacitor Bank I will be in service Approved Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Sub to grid voltage Approved

295 Erode 60109 230 KV 230 KV Singapuram- K.R.Thoppur Feeder jumper tightness work Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved SGC

ARASUR 230 KV


During the L.C Period, The remaining 2 nos 24 MVAR capacitor bank will be in service.

ANUPPANKULAM 230 KV

110KV APKM - NSPM feeder Breaker CT and line entire.

(a) For Monthly Maintenance Work. (b) For replacement of flash over disk in loc No. 252 ( c) For Monthly Maintenance Work at NSPM SS.

During the LC period, the other end also availing LC on the same date. Hence no ss will be affected.

CUDDALORE 230 KV

At Loc 5,49 (T) R phase flashed over Insulators to be replaced by healthy one.At Loc.30 B phase Jumper arc to be rectified.

ARASUR 230 KV


During the L.C Period, The feeder will be radial from 230 KV Thudialur SS.

Inter loads fed from TDLR

230KV NCTPS Stage 1 - Tondiarpet 1 #, 230KV NCTPS Stage 1 - Kilpauk, 230KV ETPS - Manali #, 110KV ETPS - Manali 2 #,

Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing. @ loc.42 & 43 of 230KV NCTPS- Tondiarpet 1 feeder. (230KV & 110KV line crossing)


Pennagaram load will be transferred to Karimangalam. OCC approval to be obtained

KORATTUR 230 KV

During the period of S/D,The 110 KV KTR - Annanagar SS loads will be transferred to 230 KV Kilpauk SS.

Ulundurpet 230 KVVALUTHUR 230 KV

During the LC period 110KV Perungulam SS will be fed from 110KV ARKAY-MANDAPAM# and 110KV VGTPS-PERUNGULAM#.


MOSUR 230 KVMOSUR 230 KV

230/110KV Auto-IV,HV-IV,LV-IV Feeder Breaker & CTS only

i)110KV Kadampathur and 110KV Kakkalur total shutdown availed.ii)Hence there will be no interruption of supply please.

THANJAVUR 230 KV

100 MVA Auto Transformers-1 & 2, HV- 1 & 2, LV- 1 & 2 Breakers & CTs. (one by one)

1) Monthly maintenance works by the AEE/Mtce/Thanjavur,2) Relay replacement works (i.e. Transformer differential relay from static to numerical) in Auto Transformer-2 by the AEE/P&C/Thanjavur,3) Tan-Delta testing works by P&C/Madurai.

During the LC period,1) Thanjavur 110 KV Grid SS (33 KV feeders), Thanjavur 110 KV Urban SS, Ayyempettai 110 KV SS, Mariammankoil 110 KV SS, Thirukkanurpatti 110 KV SS and Orathanadu 110 KV SS (11 KV feeders) will avail shutdown on the same day (Total load relief : 79 MW),2) all 230 KV feeders (except 230 KV Alundur-1) and 110 KV feeders (except 110 KV NTKudi & Alundur) will be in tied condition,3) no supply interruption to any SS.

SUB. TO AVAILING OF SHUTDOWN

THANJAVUR 230 KV

230 KV Thanjavur - Alundur-1 feeder, breaker, CT & LI.

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For Tan-Delta testing works by the P&C/Madurai

During the LC period,1) other end also will avail LC on the same day,2) Thanjavur 110 KV Grid SS (33 KV feeders), Thanjavur 110 KV Urban SS, Ayyempettai 110 KV SS, Mariammankoil 110 KV SS, Thirukkanurpatti 110 KV SS and Orathanadu 110 KV SS (11 KV feeders) will avail shutdown on the same day (Total load relief : 79 MW),3) all other 230 KV feeders will be in tied condition,4) no supply interruption to any SS.


THANJAVUR 230 KV

110 KV Thanjavur - NTKudi feeder(Line portion between Eachankottai 110 KV SS and Thanjavur 230 KV SS)

1) Monthly maintenance works by the AEE/Mtce/Thanjavur,2) Rectification works by the AEE/Lines/Thanjavur,3) Tan-Delta testing works by P&C/Madurai.

During the LC period,1) this feeder will be radial from NTKudi 230 KV SS upto 110 KV Eachankottai SS, 2) 110 KV Orathanadu SS (11 KV #s) & 110 KV Thirukkanurpatti SS will avail shutdown on the same day (Load relief: 24 MW),3) all other 110 KV feeders will be in tied condition,4) no supply interruption to any SS.


S.P.KOIL 230 KV

During period of shutdown, 230 KV S.P.Koil- kalpakkam -I & II ,Acharapakkam, feeders will be in service

MOSUR 230 KVTHANJAVUR 230 KV

110 KV Thanjavur - Alundur feeder breaker & CT only.

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For Tan-Delta testing works by the P&C/Madurai.

During the LC period,1) this feeder will be radial from Alundur 230 KV SS upto Thanjavur 230 KV SS,2) 110 KV Ambikapuram SS will avail shutdown on the same day (Relief : 16 MW),3) all other 110 KV feeders will be in tied condition,4) no supply interruption to any SS.


THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Vellore I feeder (In between 230 KV Thiruvalam SS to 110KV Vellore SS).

For Re engineering works in 110KV Karnambut SS by GCC Wing Katpadi.

During the period of LC i The 110KV Vellore-I Feeder breaker will be in â€ÕFFâ€™ Condition(In between 230 KV and 110 KV Vellore SS ). ii The 110KV Sathuvachari SS, 110KV Karnambut SS and 110 KV Arcot SS are availing total Shutdown. Hence there will be no interruption of supply please.

THIRUVALAM 230 KV

During the period of LC i. 230KV Thiruvalam â€“ Link I feeder Breakers both end will be in â€œ OFFâ€ condition at 400KV �Thiruvalam & 230KV Thiruvalam SS. ii. All other 230 KV feeders 230KV Link II, 230KV S.P.Koil & 230 KV Singarapet feeders are in service.Hence there will be no interruption of supply please.

SINGARAPET 230 KV


During the LC period both ends Maintenance work programmed and hence no interruption of supply


KADALANGUDI 230 KV

1)Monthly maintenance work 2)Annual relay testing work

No interruption to any SS. Auto II load will be restricted by Auto Trfr-I; Also 110KV Thirupanandal and Jayankondam SS proposed to total shutdown.


THIRUVALAM 230 KV

i) On 230kv Link-I Feeder Breaker and CTâ€™s, ii)On 110KV Vellore-I Feeder Breaker and CTâ€™s

i) For 230KV Link-I Feeder and Vellore-I Feeder Breaker and CTâ€™s,for monthly maintenance workii) For Re.-Engineering work in the Take off Tower in Thiruvalam-Vellore-I Feeder at Karnambut SS end, to energise new 110KV Karnambut feeder.by GCC Wing Katpadi

During the period of LCii) The 110KV Arcot SS,110KV Karnambut SS and 110Sathuvachari SS of VEDC/Vellore are availing Total shutdown on 05.08.2017.The Total shutdown approved and concurrence obtained by Chief Engineer/Distribution / Vellore The 110KV Katpadi ,Vellore and Thorpadi Substation Loads will fed from Thiruvalam- Vellore-II Feeder.iii) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II, Auto-Tr-III ,HV-III,LV-III Auto â€“Tr-IV,HV-IV,LV-IV will be in service and cater the SS Loads.iv) The 110KV Vellore-I Feeder, will be in â€ÕFFâ€™ Conditionv) The 230KV Link-I Feeder will be in â€ÕFFâ€™ condition v) The 230KV Link-II, 230KV Chittoor interstate feeders, and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

ANNUAL MAINTENANCE OF TRANSFER BUS AND BREAKER TESTING WORK

1. TRANSFER BREAKER TRIPPED CONDITION2. 29A & B ISULATORS OPEN CONDITION

Tower to tower inspection and priliminary maintanance of 230 kv ingur-thingalur #

No ss will be affected during lc period.230 kv maintanance wing applied lc on 230 kv ingur-thingalur #


UDUMALPET 230 KV

110 KV Palappampatty SS –Total shut down already programmed on the same date.i) AUTO TRANSFORMER II WILL BE CUT OFF.ii) AUTO TRANSFORMER II LOAD WILL BE SHARD WITH OTHER TOW AUTOS.iii)CAPACITOR BANK I ,II WILL BE CUT OFF.iv) ENTIRE 110KV POOLAVADI ,THUNGAVI SS LOAD WILL BE FED FROM 230 KV PONNAPURUM SS.v) 110KV RANGANATHAPURUM LOAD WILL BE FED FROM 230 KV RANGANATHAPURUM SS.vi) 110KV SEMPATTY FEEDER LOAD UPTO ELAYAMUTHUR SS FED FROM 230KV SEMPATTY SS.

Wind generation transfer not feasible


110 KV Erode - SWTP # LC recommended


Singarapet 110 KV

110KV VINNAVANUR # BREAKER AND CT'S LINE SIDE ISOLATORS AND ENTIRE LINE.

FOR MONTHLY MAINTENANCE WORK AND VARIOUS CUT POINT JUMPER TIGHTNESS WORK.

DURING THE LC PERIOD,1) 110KV CHENGAM SS WILL BE TOTAL SHUTDOWN AVAILING2) HENCE , THERE IS NO INTERRUPTION OF SUPPLY

Inter loads fed from Thiruvannamalai

LOWER METTUR 1

BHAVANISAGAR MHPH 110 KV MICRO-BSR FEEDER MICRO END

For GRT Annual Relay Tests in 110 KV Micro-Bsr Feeder, Micro End at MHPH / Bhavanisagar

1. During LC period, 110 KV Micro-Bsr Feeder, Micro End breaker only will be hand tripped. The feeder will be radially fed from Bhavanisagar SS end. Hence no SS will be affected.2. During LC period, power evacuation will be done thorough 110 KV Micro-Moyar Feeder. Hence, generation loss will not arise.

Inter loads fed from GOBI


1.110 KV Ramiyanahally feeder breaker,CTs, Line switch

Carryout Monthly Maintenance works by Maintenance wing

Sub to Inter loads fed from SNPT

DEVIAKURICHI 230 KV

110 KV Capacitor bank II Breaker CTs, Capacitor side Isolator, LAS

DEVIAKURICHI 230 KV

1) The singapuram & K.R.Thoppur both 230KV SS availing Breaker, CT’s maintenances work .2) There will be no interruption any other SS.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

296 Erode 58785 230 KV Monthly maintenance 1.Monthly maintenance at both ends. Possible Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved SGC

297 Chennai 58852 230 KV Guindy 230 KV 100MVA Auto Transformer I Routine maintenance work Load will be transferred to other two transformers. Possible Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 16:00 1 Approved

298 Madurai 58856 230 KV Auto Transformer I HV I, LV I and CTs maintenance work Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

299 Erode 58537 230 KV 230 KV PH4 feeder Breaker & CTs For Monthly maintenance works Other 230 KV feeders will share the loads Postponed Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 14:00 1 Approved

300 Erode 59443 230 KV KUNDAH PH4 230 KV Thudiyalur feeder Monthly maintenance work Standby postponed Sat, 05/Aug/2017 8:00 Sat, 05/Aug/2017 17:00 1 Approved

301 Erode 59627 230 KV KUNDAH PH3 230 KV PH4 TO THUDIYALUR FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. postponed Sat, 05/Aug/2017 8:00 Sat, 05/Aug/2017 17:00 1 Approved

302 Madurai 59930 230 KV Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

303 Madurai 58862 230 KV 230KV Thiruvarur - Thanajvur feeder Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 Approved

304 Madurai 58870 230 KV 110KV Thiruvarur - Thanjavur feeder Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 preponed 5.8.17 Approved

305 Madurai 58871 230 KV Sat, 05/Aug/2017 10:00 Sat, 05/Aug/2017 13:00 1 preponed 5.8.17 Approved

306 Madurai 58848 110 KV 110KV BUS LC entire Sat, 05/Aug/2017 9:00 Sat, 05/Aug/2017 17:00 1 preponed 5.8.17 Approved

307 Chennai 58939 230 KV KITS 230 KV 100MVA Auto transformer-I For Monthly maintenance work Sun, 06/Aug/2017 10:00 Sun, 06/Aug/2017 17:00 1 Approved

308 Madurai 56227 230 KV For monthly maintenance Work During the LC Period there willbe no supply in the Entire feeder. NOT POSSIBLE Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

309 Erode 58587 KUNDAH PH3 Unit III For monthly maintenance work Unit under shutdown condition, SF6 breaker open condition. Possible Sun, 06/Aug/2017 8:00 Sun, 06/Aug/2017 17:00 1 Approved

310 Chennai 58933 110 KV 110 Chindadripet Feeder Half yearly Maintenance Work Possible Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 17:00 1 Approved

311 Chennai 59022 230 KV 230KV Basin Bridge Feeder Routine Maintenance Works. Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 13:00 1 Approved SGC

312 Chennai 58937 230 KV 230KV BHAVINI-I&II # one by one Maintenance Work Possible Sun, 06/Aug/2017 10:00 Sun, 06/Aug/2017 17:00 1 Approved

313 Chennai 58943 230 KV KITS 230 KV For Quarterly maintenance works Possible Sun, 06/Aug/2017 10:00 Sun, 06/Aug/2017 17:00 1 Approved

314 Chennai 58683 400 KV 315MVA,400/230KV,Auto Transformer III Monthly Maintenance Work Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 17:00 1 Approved

315 Chennai 59214 230 KV 230 KV Sriperumpudhur Feeder Annual Relay test and Monthly Maintenance. Possible Sun, 06/Aug/2017 10:00 Sun, 06/Aug/2017 5:00 1 Approved

316 Chennai 59529 230 KV 230KV NCTPS Feeder Routine Maintenance work Possible Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 14:00 1 Approved

317 Erode 59734 230 KV Possible Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 16:00 1 Approved

318 Erode 59828 PUSHEP UNit II Monthly maintenence works Unit II in shut down condition Possible Sun, 06/Aug/2017 9:00 Sun, 06/Aug/2017 17:00 1 Approved

319 Chennai 58598 110 KV 110KV SVC-KANCHIPURAM # entire Quarterly maintenance work Pending Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

320 Madurai 58594 110 KV POSSIBLE Mon, 07/Aug/2017 8:00 Mon, 07/Aug/2017 17:00 1 Approved SGC

321 Erode 58536 230 KV 230/110 KV Auto Tr-III, HV & LV Br & CTs For Monthly maintenance works Other Two Auto Tr. I & II will share the loads Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 14:00 1 Approved

322 Erode 58638 400 KV MTPS SALEM 400KV SS.I MONTHLY MAINTENANCE PROGRAMED LC Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Sub to load condition Approved323 Madurai 58918 110 KV For Monthly maintenance work NOT POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

324 Erode 58879 230 KV For monthly maintenance works. possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

325 Chennai 58904 230 KV NOKIA 230 KV for Quarterly maintenance work Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 14:00 1 Approved

326 Madurai 58941 230 KV On 230 KV TTPS- kinnemangalam - feeder entire. for Tower to tower inspection work No ss will be affected. POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

327 Erode 58651 110 KV Possible Mon, 07/Aug/2017 8:00 Mon, 07/Aug/2017 17:00 1 Sub to load condition Approved

328 Erode 59010 110 KV 110KV Erode I feeder Breaker, CTs and line Isolator. monthly maintenance work Other end also availing LC possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 14:00 1 #2 will cater the load Approved

329 Erode 59059 110 KV possible Mon, 07/Aug/2017 8:00 Mon, 07/Aug/2017 18:00 1 Sub to load condition Approved

330 Madurai 59102 110 KV 1)Monthly mtc work.2)Tree Cutting work. Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved SGC

SINGAPURAM 230 KV

230KV K.R.THOPPUR FEEDER / CT, BREAKER,ISOLATOR.

Sub to DKY - TAQA # tieSubject to CBD Concurrence

THIRUVARUR 230 KV

During the Auto transformer-I LC period, the Auto Transformer - II & III will be in service and Load will be shared by Auto Transformer II & III. Hence there will be no interruption of supply. Auto Load 40 MW for each.

LC MAY BE PROGRAMMED ON 05.07.2017

THUDIALUR 230 KV

Recommended on 05.08.17Recommended on 05.08.17Recommended on 05.08.17

THANJAVUR 230 KV

230 KV Thanjavur - Thiruvarur feeder Breaker, CT, CVT & Line Isolator.

For monthly maintenance works by the AEE/Mtce/Thanjavur.

During the LC period, 1) other end also will avail LC on the same day,2) all other 230 KV feeders will be in tied condition,3) no supply interruption to any SS.


THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CTs and Line side isoaltor maintenance work and Annual Realy Test by GRT wing.



THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CTs and Line side isoaltor maintenance work


THIRUVARUR 230 KV

230KV Thiruvarur - PPN feeder & 230KV Thiruvarur - Thanajvur feeder

Errection of 230 KV Single circuit line on DC Tower for Power evacuation from Thermal Power Plant of by M/s. Nagai Power Pvt. Ltd. –Stringing of conductor over the Existing (Above) feeders


THIRUVARUR 230 KV

110KV Bus Sensationalizing isolator erection work & commission of 110Kv Bus coupler - II Breaker work.

During the LC period the following SS has programmed total shutdown on the same day. Hence there will be no interruption of supply to (1) 110 KV Nagappattinam SS (2) 110 KV Thiruthuraipoondi SS (3)110 KV Thirukuvalai SS (4)110 KV Voimedu SS.(5) 110KV Surakudi SS - Karaikkal (6)110 KV Kovilvenni SS (7)110KV Vaduvur SS (8) 110 KV Kodavasal (9) 110KV Thiruvarur SS.(10) 110 KV Thiruvarur - Thanjavur feeder breaker will be opened at Thiruvarur end.110 KV Thanjavur urban SS,110KV Manimandapam SS, 110 KV Mariamman kovil SS, 110 KV Ayyampettai SS, 110 KV Poondi SS and loads will be fed radially from 110KV Grid SS/Thanjavur. (11) 110 KV Mannargudi SS load will be fed radially from T(K)GTPS, 110KV Mannargudi feeder tie opened at Thiruvarur end. (12) 110 KV Peralam SS & 110KV Neelagudy SS load will be fed radially from 110KV Grid SS Mayiladuthurai, 110KV Mayiladuthurai feeder tie opened at Thiruvarur end. (13) 110 KV Kumbakonam SS will be fed from KGTPS. (14) 110KV KGTPP feeder tie opened at Thiruvarur end. (15) 110KV T(K)GTPS express feeder tie will be opened at Thiruvarur end. (16) 110KV Narimanam I and II feeders will be tripped at Thiruvarur end. (17) 110KV T.R.Pattinam feeder will be tripped at Thiruvarur end. (18) Auto Transformer I , II & III will be kept isolated. (19) All the 230 KV feeders will be in tied condition. (20) 110KV back feeding supply to be availed from 110KV Thiruvarur – KGTPS feeder through 230KV SS During the shutdown period 80MVA Auto Transformer II & 100MVA Auto transformer -III will be in service feeding the entire KITS SS loads



SANKANERI 230 KV

230KV Sankaneri-Abisekapatti feeder Breaker CTS&Line switches. .

GENERATING STATIONS

Sub to inflow and grid condition

BASIN BRIDGE(GMRVASAVI) 230 KV

1. 110KV Chindadripet Feeder only will not be in service.2. All other 110KV feeders, 230KV Feeders, Auto-I, II & III will be in service.


TONDIARPET 230 KV

During the period of shutdown,Except 230 KV Basin Bridge feeder will not be in service and all other feeders and equipments will be in service.

Subject to Grid condition

Subject to commissioning of 230 kV Manali - Basin Bridge feeder

SIRUSERI 230 KV

DURING THE PERIOD OF SHUTDOWN 1) 230KV BHAVINI-I&II FEEDER will not be inservice alternatively.2) While taking LC on 230KV BHAVINI - I feeder, 230KV BHAVINI - II feeder will be in service and vice-versa.

230KV Siruseri # & 110KV Velachery # one after another

During the above shutdown period 1.230KV Siruseri feeder will be in OFF condition and 230KV Tharamani feeder will be in service feeding the entire KITS SS loads and 2.110KV Velachery feeder will be in OFF condition and loads will be transferred to 230KV Tharamani SS or Guindy SS


During the period of shutdown Auto Transformer I&II will be continued in service


KOYAMBEDU 230 KV

Annual Relay test and Monthly Maintenance.

KILPAUK 230 KV

During the period of shutdown 230KV Korattur feeder will radially fed the entire loads of 230KV Kilpauk SS

ARASUR 230 KV

230 KV middle bus along with 230/110 KV Auto Transformer-II,HV-II Br,LV-II Br,CTs and LAS ,230 KV Gobi #br and CTs, 230 KV PH-II Br and CTs

For Total Shut down works and monthly maintenance works.

1)The Line clear Programmed on Sunday.2)The loads will be managed by remaining 3 X 100 MVA Auto transformers and 4 Nos. 230 KV Feeders.3) Sufficient wind import expected.

Other Autos and 230 KV #s will cater the load

GENERATING STATIONS

Sub to inflow and grid condition


During the above shutdown Period the 110KV SVC-Kanchi Feeder will be out of service

KAYATHAR 230 KV

110KV KAYATHAR-K.G.PATTI FEEDER SEC B/W KARIVALAMVANTHANALLUR&KALINGAPATTI.

FOR DEFECTIVE DISC REPLACEMENT AT VARIOUS LOCATIONS

DURING THE LC PERIOD,1.KARIVALAMVANTHANALLUR SS WILL BE RADIALLY FED FROM K.G.PATTI.2.KALINGAPATTI SS WILL BE RADIALLY FED FROM KAYATHAR


THUDIALUR 230 KV

Other Auto Trfs will cater the load

KAYATHAR 230 KV

110 kv Kayathar - papanasam Feeder, breaker with CT only

During the LC period, the feeder will be radial from other end. Hence no ss affected.


230 KV OKM-Ponnapuram Feeder (Breaker, CT's, 89M1, 89M2 & 89L Isolators) Line entire

During the LC period the other 230 KV feeders are in service to cater the ss loads.


230 KV Nokia-Sunguvarchatram feeder breaker, CTs & Line isolators

during the LC Period the 230KV supply Will be fed from 230 KV Nokia -SPR Feeder Without interruption of power supply.



LOWER METTUR 3

110 kV BPH3-BPH2 # BKR, CT, Line isolator, entire line.

To carry out the monthly maintenance works.

During the LC period 1) 110KV BPH3-BPH4 #, 110KV BPH3-ANTHIYUR #, both will be in service. 2) Unit - I, Unit – II will be in service/standby as per PWD Demand. 3) There will be No Loss of Generation during this LC Period. On the same day, BPH2 will also programmed to avail monthly maintenance work. Hence LC may kindly be approval please.

THINGALUR 230 KVLOWER METTUR 2

110 KV LMBPH 2 to 110 KV LMBPH 3 # equipment, line side isolator and Earth switch at LMBPH - 2/NPT

(a) The monthly maintenance works in feeder equipment and its Line side isolator and Earth switch.(b)Erection and commissioning of numerical relay by GRT/MTR, on 110 KV LMBPH â€“2 to 110 KV LMBPH â€“3 #

(a) During the above L.C period Unit I & 2 unit will be in service or stand by condition, depending up on the PWD demand.(b) The other end BPH â€“3 applied L.C on that day (07.08.2017) (c)110 KV BPH â€“ 2 to BPH â€“ 1 # & 110 KV BPH â€“ 2 to K.R.Thoppur feeder ( now radialy fed from BPH â€“ 2, up to KRThoppur s.s) will be in service.

KARAIKUDI 230 KV

on 1)110KV KKDI-PDKT # Br & Ct's 2)110KV KKDI-PDKT # S/B KKDI-Thirumayam.

During the LC Period the 110KV Kanadukathan SS under Total Shut down hence there will be No interruption Supply.



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

331 Erode 59061 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

332 Erode 59064 230 KV INGUR 230 KV Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

333 Madurai 59114 230 KV For Monthly Maintenance Work POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

334 Madurai 59147 110 KV POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 16:00 1 Approved

335 Madurai 59234 110 KV 110 KV BUS III NOT POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 15:00 1 Not Approved

336 Erode 59191 PYKARA Unit 2 For monthly maintenance work nil possible Mon, 07/Aug/2017 8:00 Mon, 07/Aug/2017 17:00 1 unit 2 standby Approved

337 Chennai 58686 230 KV 230KV SVC-Nokia Feeder Lines Lc and Jumper Tightness work Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

338 Erode 59236 230 KV GOBI 230 KV Auto Transformer-I HV, LV Breaker and CTs possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved SGC

339 Madurai 59268 110 KV 110KV SBT - RNPM I # Bkr, CTs and relays POSSIBLE Mon, 07/Aug/2017 10:00 Mon, 07/Aug/2017 17:00 1 Approved

340 Madurai 59285 230 KV 230 KV Kinnimangalam - TTPS feeder entire For LMW During LC period there will be no supply in the entire feeder POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

341 Erode 59327 230 KV Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved SGC

342 Madurai 59343 230 KV POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 15:00 1 Approved SGC

343 Madurai 59360 230 KV then I 230 KV POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 13:00 1 Approved

344 Madurai 59364 230 KV Monthly Maintenance Work POSSIBLE Mon, 07/Aug/2017 10:00 Mon, 07/Aug/2017 17:00 1 Approved

345 Erode 58724 230 KV Salem 400 KV Monthly maintenance work Both End Monthly maintenance worknd repeat Mon, 07/Aug/2017 8:00 Mon, 07/Aug/2017 17:00 1 P-id 58657 Repeat

346 Erode 59401 400 KV MTPS Salem 400KV Feeder-I Programmed LC Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Sub to load condition Approved

347 Madurai 59553 230 KV NOT POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Not Approved

348 Erode 58723 230 KV Salem 400 KV Monthly maintenance work Both End Monthly maintenance worknd Possible Mon, 07/Aug/2017 8:00 Mon, 07/Aug/2017 17:00 1 Sub to load condition Approved

349 Erode 59437 110 KV Erode 110 KV MONTHLY MAINTENANACE WORK DURING LC PERIOD NO SS WILL BE AFFECTED Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 #2 will cater the load Approved

350 Chennai 59628 110 KV 110KV Villupuram – Acharapakkam – II # Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

351 Erode 59644 230 KV 100MVA Auto transformer II Monthly maintenance work During the LC period 100MVA Auto transformer I will be in service Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

352 Erode 59716 110 KV 110KV Capacitor Bank-I breaker and CTs. Approved Mon, 07/Aug/2017 11:00 Mon, 07/Aug/2017 13:00 1 Sub to grid voltage Approved

353 Erode 59717 110 KV 110KV Capacitor Bank-II breaker and CTs. Approved Mon, 07/Aug/2017 14:00 Mon, 07/Aug/2017 16:00 1 Sub to grid voltage Approved

354 Erode 59672 400 KV MTPSII 230/400KV ICT-I Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

355 Erode 59706 110 KV 110KV Arasur-Karamadai 1 Feeder breaker and CTs. Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 11:00 1 Approved

356 Chennai 59724 110 KV 110KV Villupuram- Neyveli- II # Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

357 Madurai 58729 230 KV NOT POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 16:00 1 DUE TO WIND GEN Not Approved

358 Madurai 59759 230 KV For Monthly Maintenance Work. POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

359 Chennai 59832 230 KV All other feeder in service. To be discuss Mon, 07/Aug/2017 6:00 Mon, 07/Aug/2017 9:00 1 Approved

360 Chennai 59834 230 KV All other feeder in service. To be discuss Mon, 07/Aug/2017 6:00 Mon, 07/Aug/2017 9:00 1 Approved

361 Madurai 59760 110 KV For Monthly Maintenance Work. POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved SGC

362 Erode 59814 230 KV ICT - 1 Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

363 Madurai 59855 230 KV Auto Transformer II POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

364 Madurai 59866 230 KV 230KV KNMLM-TTPS Maintenance works of Breaker and CT During the LC period there will be no supply in the entire feeder POSSIBLE Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

365 Chennai 59874 110 KV for monthly maintenance work. Hence there will be no interruption of supply please. Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 14:00 1 Approved

366 Erode 59888 110 KV It is Tie feeder hence there is no interruption of power supply. Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 Approved

367 Chennai 59913 110 KV 110 KV MOSUR LINK-I & II FEEDER LINE LC 110 KV LINK-I & II TOTAL SHUTDOWN WORK Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 14:00 1 Approved

368 Madurai 60105 110 KV 110KV Bus entire at 110KV Ayyermalai Grid SS Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 15:00 1

369 Erode 58774 230 KV Salem 400 KV MONTHLY MAINTENANCE WORK Both end Monthly Maintenance Work repeat Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 P-id 58657 Repeat

110KV Thiruvachi # Breaker, CTs, ,Isolators and Line side Isolator

SIPCOT1 TSD and Erode - Ingur #3 to be tied

Auto Transformer III and its HV & LV Breakers with CT’s ,Isolators and Line side Isolator

MONTHLY MAINTENANCE WORKS AND GRT WING RELAY CHANGING WORK

1.SIPCOT - I TOTAL SHUT DOWN ON THAT DAY2.DEPENDING UPON LOAD CONDITION

SIPCOT1 TSD and Sub to Auto load

PUGALUR 230 KV

Auto transformer I, HV I and LV I Breaker,CT's and LAS only.

During the L.C Period HV I and LV I are tripped condition. The 110KV AC Palayam,33KV Rajapuram are proposed total shutdown.There is no interruption to any SS. Load contain with in two auto transformer (II & III)



1)110kv RNPM-Kovilur # Breaker ,CT & line switch2)110kv RNPM-Kovilur # section betweeen RNPM and Kovilur SS

1)a) Monthly maintenance b) Relay testing2) Tree cuttting

1)During LC period there will be no supply in 110kv RNPM-Kovilur #2)110kv Kovilur SS,33kv chatrapatty,33kv Vallipatty SS avail total shutdown load relief 12+4+4=20mw. Hence no interruption to any ss


SRPUDUR 230 KV

110 KV SRP -KDR II # Bus isolator 37 Y phase glow attending work.

110 KV SRP - ARMI # I & II will be radial from ARMI SS upto SRP (excl).110 KV SRP- Kodayar II #.radial from Kodayar upto SRP (excl) and Parasala (Incl). 110 /11KV SRP SS will avail total Shutdown. Approved by SE/KKEDC/NGL.

DUE TO WIND GEN:LC ALREADY AVAILED AS ELC

GENERATING STATIONS


During the period of shutdown Sriperumbudur-Nokia will be continued in service


1.Auto Transformer II AND III re in service,it may cater the load2.110 KV Thoppampalayam ss and 110 KV Nambiyur ss may avail total shutdown

Sub to Auto load after availing Thoppampalayam and nambiyur TSD

SEMBATTY 230 KV

1. Monthly maintenance work2. Relay testing work





PALLADAM 230 KV

AUTO TRANSFORMER I and its HV,LV breaker and CT's & LAS

To carrtout monthly maintenance work by AEE/Maintenance/Palladam

During LC period 1). Other 3 Nos Auto transformer's will be in service2).Wind generation import in 110 KV Elavanthy # available3).If rnecessary,110 KV Mudalipalyam SS will be transferred to Ingur 230 KV SS

Sub to Auto load ,Muthalipalayam load transfer not feasible since Auto 3 LC at Ingur

SANKANERI 230 KV

230/33KV POWERTRANSFORMER-II HV&LV Breaker&CTs only.

For monthly maintenance & GRT Relay Testing work.

During the LC Period PowerTransformer-II willnot beinservice. PowerTransformer-I&III will be carriedout the EntireLoad.


230 KV AUTO TRANSFORMER II HV & LV BREAKER WITH CT ONLY.

FOR MONTHLY MAINTENANCE WORK.

DURING THE LC PERIOD THE STATION LOAD WILL BE MANAGED OTHER TWO AUTO TRANSFORMERS


SAMAYAPURAM 230 KV

100 MVA Auto Transformer-I, HV-I, LV-I, Breakers , CT's, and isolators

During the above Shutdown Period 100 MVA Auto Transformer II will be in service. No interruption to any other SS


230 KV MTPS I # CT, BREAKER, BUS & LINE SWITCHES


ALUNDUR 230 KV

230KV Alundur -Trichy II feeder breaker, CT'S, CVT'S and line isolators.

a)Preventive Monthly maintenance work. b)premonsoon inspection and tree cutting work. c)Relay Testing work.


DUE TO LOAD CONDITION

230 KV MTPS I # CT, BREAKER, BUS & LINE SWITCHES110 KV ERODE -THINGALORE I FEEDER BREAKER AND CT LINE SIDE

VILLUPURAM 230 KV

To carry out Breaker and CT’s Monthly Maintenance Work. and For jumper tightening works

1. Chendur SS availing Total shutdown.2. The will be radial from Other end.3. Hence No interruption of supply to any SS.And1.The will be radial from Other end from Acharapakkam SS end upto Elamangalam SS2.The line between 230KV SS & 110KV Elamangalam SS will be kept off 3.Hence No interruption of supply to any SS

METTUR AUTO 230 KV

Sub to Auto load after issue 110 KV BPH2-BPH3 # LC

ARASUR 230 KV



ARASUR 230 KV



MONTHLY MAINTENANCE WORKS AS APPROVED BY OCC.

UNIT IN SERVICE. ALL 400KV AND 230KV FEEDERS EXCEPT THINGALUR FEEDER ARE IN SERVICE.


ARASUR 230 KV

For Monthly maintenance work and Tan delta measurement of CT'S BY P & C WING / Coimbatore .

During the L.C period, The feeder radially fed from 230 KV Karamadai SS .Also 110 KV MGC Palayam ss and 110 KV Ellapalayam ss under total shut down.

MGC Palayam & Ellapalayam TSD and other inter loads fed from Karamadai

Villapuram 110 KV


1. The 110KV Neyveli II # at Arasur SS towards Villupuram side will be kept open.2. The feeder will be kept radial from Neyveli TS I end.3. Thirupachanur SS in Neyveli I feeder is availing total shutdown.4. Neyveli I #,T.V.Malai and Acharapakkam # are in tied condition.5. Hence nointerruption of supply in any SS.

TRICHY 230 KV

230 KV TRICHY - ALUNDUR II Feeder breaker,CTs, Line isolator and line entire.



ANUPPANKULAM 230 KV

100 MVA AUTO TR. II, HV-II and LV-II Breaker with CT only.

During the LC period the Auto Tr. I & III will cater the load of Auto Tr. II. Hence No SS affected.


Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing. @ loc.42 of 230KV NCTPS- Tondiarpet 2 feeders. (230KV & 110KV line crossing)

Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing. @ loc.42 & 43 of 230KV NCTPS- Tondiarpet 1 feeder. (230KV & 110KV line crossing)

230 KV NCTPS â€“ Tondiarpet 2, 230 KV NCTPS â€“ Kilpauk, 230 KV ETPS â€“ Manali & 110 KV ETPS â€“ Manali 2.

Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing. @ loc.42 of 230KV NCTPS- Tondiarpet 2 feeders. (230KV & 110KV line crossing)

ANUPPANKULAM 230 KV

110 KV Thulukkapatty- MCL # Br. CT. and line switch only

Concurrence obtained from M/s. RAMCO cements Ltd., (Erstwhile MCL). Presently, there is no export of power from M/s. RAMCO to TNEB grid and hence no loss of genenration.

SUB TO CONCURRENCE FROM M/S MCL


ICT - 1 and ICT - 2 Parallel operation by P&C wing

No interruption of supply, 230KV Karimangalam load fed through 230KV Mettur


VALUTHUR 230 KV

For Attending Auto Transformer II HV and LV breakers and it's CT's and isolators Monthly Maintenance work.

During the LC period Auto Transformer I & III will be in service. Hence there is 'no' interruption in power evacuation




MOSUR 230 KV

110KV Link-I,110KV Link-II Feeder Breaker & CTs one by one


1.110 KV Ramiyanahally feeder breaker,CTs, Line switch


Sub to inter loads fed from SNPT

MOSUR 230 KVPUGALUR 230 KV

To provide dropper jumpers in the new LILO arrangement in the 110KV Bus at 110KV Ayyermalai Grid SS by GCC/Trichy

During the LC period,1. 110KV Ayyermalai SS & Pettavaithalai SS are availing Total shut down.2. Concurrence obtained from EHT generator M/s.Welspun solar, Ayyermalai.3. Concurrence obtained from EHT consumer M/s. EID Parry, Pettavaithalai. 4. 110KV Trichy, Puliyur feeders are kept radial from other end upto line switch.5. Hence there is no interruption to any other SS.

LATE ENTRY done on 25.07.17 - SANCTION BP COPY DRAWING TO BE FURNISHED


230 KV MTPS I # CT, BREAKER, LINE SWITCHES



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

370 Erode 60005 110 KV Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 15:00 1 Approved

371 Erode 60041 110 KV Possible Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 18:00 1 Sub to PWD demand

372 Madurai 59556 110 KV Mon, 07/Aug/2017 9:00 Mon, 07/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved


374 Madurai 58553 110 KV 110KV feeder breaker only No interruption of supply to any ss. since feeder not comissioned Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 14:00 1 Wrong entry

375 Erode 58538 110 KV 110 KV Keeranatham SS feeder will be fed from Karamadai 230 KV SS possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 15:00 1 Approved

376 Chennai 58626 230 KV To Carry out Monthly Maintenance work Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 16:00 1 Approved

377 Chennai 58631 230 KV For monthly maintenance works. Possible Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1 Approved

378 Erode 58572 110 KV METTUR DPH 110 KV DPH-AUTO SS FEEDER 1 The other end will be in service Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 15:00 1 Sub to load Approved

379 Erode 58888 230 KV For monthly maintenance works. Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Sub to Auto load Approved

380 Madurai 58947 230 KV On 230KV TTPS-Auto-I feeder entire No ss will be affected. POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

381 Erode 58658 110 KV Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

382 Chennai 58664 110 KV 110 KV Echur - Mazhaiyur # Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved


384 Erode 59069 110 KV INGUR 230 KV 110KV Capacitor Bank I entire MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION Approved Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 sub to grid voltage Approved

385 Erode 59012 110 KV 110KV Erode II feeder Breaker, CTs and line Isolator. monthly maintenance work possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 Approved

386 Madurai 59030 400 KV Monthly Maintenance work POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

387 Madurai 59128 230 KV For monthly maintenance purpose. NOT POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

388 Madurai 59129 230 KV Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

389 Erode 59149 230 KV 230 Kv Bus Coupler Breaker For P&C Bus Stability Testing NO Power Interuption to the 230 And 110 Kv Feeders possible Tue, 08/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 2 Approved

390 Erode 59099 110 KV Erode 110 KV possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

391 Erode 59127 230 KV possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Soolagiri,Sipcot2 Approved

392 Madurai 59220 230 KV 100 MVA AUTO - I, HVB - I, LVB - I , CT only. Monthly Maintenance Works POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 Approved



395 Madurai 59272 110 KV Tree cutting work POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

396 Madurai 59286 230 KV 230 KV Checkanurani - Meelavittan feeder entire During LC period there will be no supply in the entire feeder POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

397 Chennai 59294 110 KV Possible Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1 Approved

398 Madurai 59374 230 KV Monthly Maintenance Work POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

399 Madurai 59383 110 KV 110kv TJR-LINK I & II Feeder Br one after another For monthly maintenance work POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

400 Madurai 58694 230 KV Monthly maintenance NOT POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

Singarapet 110 KV

110KV ARNI # II BREAKER AND CT'S AND LINE SIDE ISOLATORS AND ENTIRE LINE.

FOR MONTHLY MAINTENANCE WORK AND FOREST AREA VARIOUS LOCATION TREE CUTTING WORK

DURING THE LC PERIOD,1) RADIAL FROM SINGARAPET SS END.2) HENCE, THERE IS NO INTERRUPTION OF SUPPLY.

Inter loads fed from Arani

LOWER METTUR 1

BHAVANISAGAR MHPH 25 MVA 110 / 11 KV POWER TRANSFORMER

For GRT Annual Relay Tests in 25 MVA, 110 / 11 KV Power Transformer at MHPH / Bhavanisagar.

1. During LC period, it is expected that PWD demand will be NIL. Hence, generation loss may not arise.2. During Lc period, RBCPH PWD demand will be only 5 c/s, hence generation loss will not arise at RBCPH.3. During LC period, only 110 KV GC and 11 KV common LV breakers will be hand tripped. 110 KV feeders will not be affected. Hence no SS will be affected.

Approved Subject to PWD demand

ALUNDUR 230 KV

110KV Alundur - Vadugapatty Feeder and Breaker,CT's and Line isolators.

a)Preventive Monthly Maintenance work b) Premonsoon inspection work and tree cutting work. c) Relay Testing work.

a) 110KV Vadugapatty is radial feeder. b) 110KV Vadugapatty,Pakkudy and Ammachatram SS avail Total shutdown. c) All other 110KV feeders will be in service. d) There will be no interruption of supply to any other feeders and SS.

KAYATHAR 230 KV

110KV KAYATHAR-ANUPPANKULAM FEEDER SEC B/W DURAISAMYPURAM & KOVILPATTI.


DURING THE LC PERIOD,1.DURAISAMYPURAM SS WILL BE RADIALLY FED FROM KAYATHAR.2.KOVILPATTI SS WILL BE RADIALLY FED FROM ANUPPANKULAM HENCE NO SS AFFECTED

kumbakonam 230 KV

Monthly Maintenance of feeder breaker and isolator(Line Side)

NOT COMMISSIONED

THUDIALUR 230 KV

110 KV TDLR-Karamadai 2 feeder section between 110 KV Keeranatham SS and 230 KV TDLR SS& 110 KV Karamadai - II feeder Breaker & CTs

For PMI works & Monthly maintenance works

Sub to inter loads fed from Karamadai

ACHRAPAKKAM 230 KV

230/110 KV 100 MVA Auto Transformer â€“ I HV and LV Breaker and CTâ€™s

1) 100 MVA Auto transformer-II in service condition2) 110KV ACK - Villupuram # I & II Radial charged from Villupuram End 3) 110KV ACK - SP Koil # I & II Radial from SP Koil End.4) 110KV Vandavasi # Radial from other end.5) Hence no Interruption of power supply.


230KV SIPCOT Mambakkam - Sriperumbudur feeder - Breaker, Current Transformers & Line side isolator only.

During the period of shutdown the entire load of 230KV SIPCOT Mambakkam SS [Approximately: 45MW] will be fed from 400KV SV.Chatram SS through 230KV SIPCOT Mambakkam - SV.Chatram feeder without interruption.

1.Monthly Maintenance works2. Annual Relay testing


Auto Transformer 3 (HV & LV Breakers, CTs & LAS)

During the LC period,1)110 KV OKM-TDLR I&II feeder loads will be transferred to 230 KV TDLR SS (if necessary)2)The remaining two Auto transformers are in service to cater the ss loads with support of wind generation.


For Tower to Tower Inspection and jumper tightness work.

SUB TO TTPS 3M/C GEN

ANTHIYUR 230 KV

110KV FEEDERS METTUR,BARRAGE PH-III,ANTHIYUR ,THALAVAIPETTAI & GOBI ONE BY ONE AND 110KV BUS COUPLER BREAKER AND CT

FOR TAN DELTA MEASUREMENT OF 110KV CT BY P&C WING

DURING THE LC PERIOD 110KV METTUR,BARRAGE PH-III AND GOBI FEEDER WILL BE RADIALLY FED FROM OTHER END.DURING THE LC PERIOD 110KV ANTHIYUR FEEDER FED THROUGH THALAVAIPETTAI FEEDER AND VICE VERSA.

One by one for tan delta testing

ECHUR 230 KV

Monthly Maintenance work carried in all Cts and isolators in 110 KV Echur - Mazhaiyur #.

At the time of LC1.110 KV Echur - Mazhayur # the 110 KV Echur - Mazhayur # Bkr will be HT and isolators are kept open, and the 110 KV Chetpet and Thayanur SS Load transferred to 230 KV Villupuram SS. After completion of Work, 110 KV Echur - Mazhaiyur # Bkr will be charged and isolators are kept closed. Hence no interruption to the substation


On 230 KV Sipcot- Chekkanoorani feeder breaker with CTs and line isolators only. (Through Bus Transfer Breaker)

a) For monthly maintenance work. b) Annual relay test

During the LC period, the other end has also proposed LC on the same date and no other SS will be affected please.


THINGALUR 230 KV

110KV Gandhi Nagar SS availing Total shutdown and other end also availing LC.

sub to Gandhinagar TSD

400KV Kamudhi feeder main breaker (409-52), Reactor breaker (409-52R) only

During the LC period there will be no supply in 400KV Kamudhi feeder main breaker (409-52), Reactor breaker (409-52R) only. Hence no substation affected.

APPD IN 133 OCC VIDE ITEM NO.116

SANKANERI 230 KV

230/110KV AutoTransformer-I HV&LV Breaker CTS&Lineswitches.

During the LC Period AutoTransformer-I willnot be inservice.AutoTransformer-II willbe Carriedout the Entire Load.

KARAIKUDI 230 KV

On 1)110KV KKDI-ALKL # Bkr & Ct's 2)110KV KKDI-ALKL # S/B KKDI-TPR.

1)Monthly Mtc Work2)Disc Replacement work.

During the L.C period the 110KV KKDI-ALKL # Loads to 110KV Kottampatty # (fed from 230KV A.Koil SS).


Kurukathi 230 KV

230 KV Palladam & Auto 1 will be fed from through 230 KV Bus

110 KV KAVUNDAPADY -SAKTHI SUGARS FEEDER I AND II

CONDUCTING OF ANNUAL RELAY TEST IN SAKTHI SUGARS FEEDER I AND II WITH CT AT KAVUNDAPADY 110/22 /11 KV SS ONE AFTER ANOTHER BY AEE/P&C/GOBI AND MONTHLY MAINTENANCE WORK

DURING LC PERIOD NO SS WILL BE AFFECTED .NECESSARY CONCURRENCE OBTAINED FROM SE/EEDC/ERODE AND M/S SAKTHI SUGARS KAVUNDAPDY

Sub to SE/EEDC and Sakthisugars concurrence

GURUPARAPALLI 230 KV

230KV Shoolagiri & Singarapet feeder breakers, HV-I,HV-II, Auto-I, Auto-II, LV- I& LV-II breakers, 110KV Hosur & Karimangalam feeder breakers, GC-I & GC-II breakers, Pr.Tr. 110/33KV, Pr. Tr. 110/11KV, LV-I & LV-II breakers, 33KV & 11KV feeder breakers

Monthly maintenance works in 230KV Shoolagiri & Singarapet feeders, HV-I & II, Auto-I & II, LV - I & II, 110KV Hosur & Karimangalam feeder breakers , GC-I & GC-II breakers, Pr.Tr. 110/33KV, Pr. Tr. 110/11KV, LV-I & II breakers, 33KV & 11KV feeder breakers

1. 230KV Shoolagiri & Singarapet feeder breakers, HV-I & HV-II breakers to be hand tripped, BS/LS isolators of Shoolagiri & SIngarapet breakers, HV-I & HV-II to be opened.2. LV-I & LV-II, 110KV Hosur & Karimangalam feeder breakers to be hand tripped (Krishnagiri 110KV SS will be transferred & fed by 230KV Karimangalam SS), BS/LS isolators to be opened.3. GC-I & II to be hand tripped, BS/LS isolators to be opened. LV-I & II breakers and all 33KV & 11KV feeder breakers to be hand tripped , BS/LS isolators to be opened. 11KV LV will be hand tripped after availing station supply from the feeder fed from Krishnagiri 110KV SS. Concurrence obtained from SE/O/Thiruvalam, SE/KEDC/Krishnagiri, total shut down proposed at 230/110/33-11KV SS as per approval received from CE/Distn/Vellore.

PASUMALAI 230 KV

1)Auto Transformer - 2 will be in Service. 2) 110/11KV Villapuram SS will be under Shutdown.


PASUMALAI 230 KV

1)110KV Pasumalai - Sakthi Sugars # Section between Pasumalai and Uranganpatty 2)Line LC

1) Maintenance Works of BKR & CT, LI only. 2) Tree Cutting and Tower to Tower Inspection works .

1) The sakthisugars feeder is kept fed from Alkl end through 110KV Alagarkoil - Karaikudi Feeder feeding Uranganpatty SS, Nattarmanaglam , Nelmudikarai and Arasanoor SS upto Sakthisugars. 2) At Uranganpatty SS the switch towards Pasumalai SS is already kept opened 3)110KV Sakthisugar -Sivaganga Feeder will be in grid . 4)110KV Alagarkoil - Karaikudi Feeder is also radial from Alagarkoil upto Tirupathur SS Line links feeding Narasingampatti , Melur SS and Thaniyamangalam SS. 5) At Tirupathur SS the switch towards Alagarkoil is kept open. 6) 110/33-11KV Villapuram SS will be under Shutdown.


SRPUDUR 230 KV

110 KV SRP - KDR I # Br,CT & Line switch, 110 KV SRP - KDR I # section between SRP-TKY

Monthly Mainteanace work,Tree clearance work

During the LC period the 110 KV SR Puthur - KDR I feeder will be radial from KDR PH II upto Thuckalay SS (incl).The 110/11 KV Chembonvilai, Cheramangalam and Karungal SS will avail total Shutdown to be approved by SE/KKEDC/NGL and SE/O/TIN. Concurreance to be obtained from Railway athoritise.Hence no SS will be affected.

SUB TO WIND GEN: CONCURRENCE FROM RAILWAY TRACTION

SEMBATTY 230 KV

110KV SBT - RNPM I # sec. bet. Kannivadi and Reddiyarchatram SS

During the LC period the feeder will be radial from Sembatti upto Kannivadi SS and radial from other end upto Reddiyarchatram SS. Hence no interruption to any SS.



230 KV Checkanurani - Meelavittan feeder entire


GUMMIDIPOONDI 230 KV

110 KV Periyapalayam Feeder, Breaker,110KV CTs Line Isolator

Monthly Maintenance work, CT Clamp, and Bolt Nuts replacement work.

During the Period of Shut down the 110KV Periyapalayam SS availing Total Shut down. Concurance to be obtained from JR Metals EHT

AMUTHAPURAM 230 KV

230/33KV Power transformer-1 HV,LV Breakers with CT's and its 33KV feeder

1) During the LC period there will be NO supply in P.Tr-1 and its 33KV feeders. 2) If there is wind generation its 33KV feeders paralleled with other power transformers. 3) No SS will be affected. 4) Concurrence obtained from SE/NCES/TIN.


Thanjavur 110 KV

During the LC period there will be no interruption of supply to any ss, LC also applied by EE/O/TJR ON THE same day.


KODIKURICHY 230 KV

Auto I H.V and L.V Breaker with C.T. and all isolators.

During the L.C period(i)Auto-I will be out of service,(ii) Auto-II & III will Cater the SS load



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

401 Chennai 59386 110 KV ARNI 230 KV For Monthly Maintenance work. 110KV Arani- SPT II # is Idly charged. Hence no interruption of supply. Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

402 Erode 58715 110 KV SipcotII 110 KV repeat Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 P-id 58713 Repeat



405 Chennai 59387 110 KV ARNI 230 KV For monthly maintenance work Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

406 Erode 58713 110 KV SipcotII 110 KV Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

407 Erode 59411 110 KV KUNDAH PH1 110KV PH1 TO PH5# 1&2 Possible Tue, 08/Aug/2017 8:00 Tue, 08/Aug/2017 17:00 1 Approved

408 Erode 59439 110 KV Erode 110 KV MONTHLY MAINTENANACE WORK possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

409 Madurai 59457 110 KV 110KV Alkl- Sempatty 1 feeder breaker with C.T. For monthly maintenance work. During the L.C period the feeder will be radial from other end. POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 13:00 1 Approved

410 Erode 59477 110 KV Annul Mtce work SKPY PH is standby condition possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 16:00 1 Approved

411 Erode 59488 230 KV LC programmed at other end also. possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 Approved

412 Madurai 59528 230 KV Auto transformer-I, HV-I and LV-I breaker POSSIBLE Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1 Approved

413 Madurai 59530 110 KV 110KV Kadalangudy -Mayiladuthurai feeder entire POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

414 Erode 59564 230 KV 230KV Myvadi-Anikadavu # Breaker & CT line entire Both end Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 Approved

415 Erode 59572 230 KV For monthly maintenance works. possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

416 Chennai 59626 110 KV For monthly maintenance works Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

417 Erode 59650 110 KV 110KV MDPH I Feeder Monthly maintenance work During the LC period other 110KV feeders will be in service Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

418 Erode 59676 230 KV 230 KV Arasur -Pushep feeder Breaker& CTs. Possible Tue, 08/Aug/2017 14:00 Tue, 08/Aug/2017 16:00 1 Approved

419 Erode 59740 Power transformer No III HV Breaker and Isolators. Monthly maintenance and P&C check. Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1

420 Erode 59678 230 KV 230 KV Arasur -Karamadai feeder Breaker& CTs. Possible Tue, 08/Aug/2017 11:00 Tue, 08/Aug/2017 13:00 1 sub to load condition Approved

421 Erode 59705 110 KV 1)110KV Arasur-Karuvalur 2 Feeder breakerand CTs. The feeder normally fed from 230 KV Karuvalur SS. possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 11:00 1 sub to load condition Approved


423 Erode 59767 230 KV AUTO-II ,HV-II,LV-II Breaker and Its CTs For monthly maintenance works Possible Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1 Approved


425 Erode 59783 230 KV 230KV TBC/BC BREAKER Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 Approved

426 Chennai 59836 All other feeder in service. To be discuss Tue, 08/Aug/2017 6:00 Tue, 08/Aug/2017 9:00 1 Approved

427 Madurai 58731 230 KV For Monthly Maintenance Work POSSIBLE Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

428 Erode 59815 230 KV ICT - 4 Pennagaram load fed through 230KV Karimangalam SS Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

429 Madurai 59856 110 KV 110KV Arkay - Mandapam - Perungulam feeder entire For attending tree cutting work POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

430 Chennai 59905 110 KV 110 KV S.P.Koil - Siruseri Feeder Quarterly mtce Work During period of shutdown, All other 110 KV feeders will be in service Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

431 Chennai 59933 110 KV 110 KV Thiruvalam â€“ Gudiyatham feeder entire. Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved


433 Chennai 59932 110 KV For replacement of aged disc at loc: 01 Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

434 Erode 59946 110 KV 110 KV Ramiyanahalli # Breaker, CTs & line isolators Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 16:00 1 Approved

435 Erode 59948 230 KV 230 KV Gurubarapally # Breaker, CTs & line isolators Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 16:00 1 Approved

436 Chennai 59966 230 KV 230 KV NCTPS-SPR feeder Jumper tightness at various location All other feeder will be in services Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

110KV Arani-Singarapet II #,110KV Breaker,C.T.'s & Line Isolator.Annual test of Breaker and relay of 110KV Rengaraj feeder,110KVsipcot-110KV Palladam feeder at Sipcot ss ll (G) Perineural.)

Annual relay tests to be conducted in 110KV Breaker &relays tests in 110KVRengaraj feeder and 110Kv Palladam feeder by GRT wing Erode.

1.No supply will be effected2.It is proposed to avail total shutdown LC 3substations 1.Sipcot ii 110KV ss(G) 2.Periandipalayam 110KV SS (3).Uttukuli 110KV ssin the same day on.08.08.2017

Annual test of Breaker and relay of 110KV Rengaraj feeder,110KVsipcot-110KV Palladam feeder at Sipcot ss ll (G) Perundurai)


1.No supply will be effected2.It is proposed to avail total shutdown LC 3 substations 1.Sipcot II 110KV ss(G) 2.Periandipalayam 110KV SS (3).Uthtukuli 110KV ss in the same day on 08.08.2017

Annual test of Breaker and relay of 110KV Rengaraj feeder,110KVsipcot-110KV Palladam feeder at Sipcot ss ll (G) Perundurai)


1.No supply will be effected2.It is proposed to avail total shutdown LC 3 substations 1.Sipcot II 110KV ss(G) 2.Periandipalayam 110KV SS (3).Uthtukuli 110KV ss in the same day on 08.08.2017

110 KV Arani â€“Thayanur #,110KV Breaker,C.T.'s & Line Isolator.

110KV Arani-Thayanur # is Idly charged. Hence no interruption of supply.

110KV Rengaraj feeder,110KVsipcot-110KV Palladam feeder at Sipcot ss ll


1.No supply will be effected2.It is proposed to avail total shutdown LC 3substations 1.Sipcot ii 110KV ss(G) 2.Periandipalayam 110KV SS (3).Uttukuli 110KV ssin the same day on.08.08.2017

Sub to SE/EEDC and ISPAT concurrence, Uthukuli & Periyandipalayam TSD

110KV PH1 to PH5 # 1 & 2 one after another for Annual relay testing work by P&C wing Kundah & Monthly Maintenance work

During the LC Period, the concern feeder will be radially feed from other end.

one by one & sub to load

110 KV ERODE -THINGALORE II FEEDER BREAKER AND CT LINE ISOLATOR

DURING LC PERIOD 110 KV GANDHINAGAR SS WILL BE UNDER TOTAL SHUTDOWN


ALAGARKOIL 230 KV


ALIYAR 230 KV

110KV ALR-SKPY FEEDER CB,CT AND LINE ENTIRE

Sub to Saekarpathy generation

KARAMADAI 230 KV

230KV Karamadai- Karuvalur feeder breaker, CT's&CVT's

For monthly maintenanace work of 230KV Karamadai- Karuvalur feeder breaker, CT's& CVT's and P&C testing work

other #s will cater the load

KADALANGUDI 230 KV

1)Monthly Maintenance work2)Relay testing work by P&C/Thiruvarur

During the above LC period there is no supply interruption to any SS.Auto transformer load will be restricted with Auto-II.Also 110KV Mayiladuthurai SS proposed total shut down on the same day.


KADALANGUDI 230 KV

1)Maintenance work2)Line inspection and rectification work3)Relay testing work by P&C/Thiruvarur

During the above LC period there is no supply interruption to any SS.110KV Mayiladuthurai SS proposed total shutdown on the same day.


Udumalpet 400 KV


Sub to wind & load condition


230KV Devikurichy ( valayapatty) feeder CB, CTs, CVTs, Wave Traps and 230KV isolators.

During LC period230KV Unjanai and Pugalur feeders will kept tied with grid.230KV PSI-Deviakurichy feeder line made LILO at newly commissioned 230kV Valayapatty SS.230KV Valayapatty SS being newly commissioned and due to dearth of staff, not proposed LC at their end.230KV New Valayapatty SS will be radially fed from 230KV Deviakurichy SS end.No supply interruption.

Sub to DKY-TAQA # tie

CUDDALORE 230 KV

The 110KV Cuddalore – LANCO # breaker with CT’s and Auto transformer-I line side isolator

The 110 KV Semmankuppam SS,110 KV Bmutlur SS, 110 KV Kurunjipadi, will be availing total shutdown.110 KV Cuddalore – LANCO # tie will be opened at 110 KV Bmutlur SS .the 110 KV Chidambaram SS load will be fed from 110 KV Lanco IPP Hence no interruption of supply

Subject to EE/SLDC/Madurai concurrence

METTUR AUTO 230 KV

After completion at MDPH end

ARASUR 230 KV



Sub to PUSHEP generation


Power transformer No I and IV in service.Power transformer No III loads will be fed from Power transformer No I & IV.


ARASUR 230 KV



ARASUR 230 KV

For Monthly maintenance work and Tan delta measurement of CT'S BY P & C WING / Coimbatore .

ANUPPANKULAM 230 KV

110 KV APKM-Thulukkapatti-II feeder Br., CT., and Line entire on both ends

(a) For Monthly Maintenance Work. (b) For jumper bolt rectification work at Loc. No. 32 (c ) For Monthly Maintenance Work at Thulukkapatti SS.

During the LC period the 110 KV Thulukkapatti I feeder will cater the load of 110 KV Thulukkapatti II feeder. Hence no SS will be affected.


PONNAPURAM 230 KV

Subject to the wind generation, 1.Thungavi SS G.C-II will be transferred to 230KV Udt SS / 110KV Poolavadi # 2. 110KV Ingur-I & II will be kept radial from other end,3. Hence Load will be with limits of other two Auto Trs.& No SS will be affected.

Wind gen transfer not feasible and sub to Auto load

KARUVALUR 230 KV

230 KV -Karuvalur -Karamadai # Breaker,CTs LAS and its lines switch

230kV KVLR-PGCIL # will be in service and Auto transformer I&II will be in service


KARUVALUR 230 KV

For Monthly maintenance work of Bus transfer Switch

All 230kV Feeders will be in 230kV BUS II and 230kV BUS I will be ideal

230 KV Bus 2 will cater the load

230 KV NCTPS â€“ Tondiarpet 1, 110 KV ETPS - Tondiarpet & 110 KV ETPS - Manali

Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing @ 60 of 230KV NCTPS- Tondiarpet 1 feeder. (110KV lines crossing)

VEERANAM 230 KV

Power transformer -I,HV.BR-I,LV.BR -I &33KV feeder of MICON-III,MICON-IV&MICON-V

During the lc period there will be no supply in the entire power transformer-I & 33KV feeders concurrence obtained from SE/NCES/TIN.



ICT - 3 and ICT - 4 Parallel operation by P&C wing


VALUTHUR 230 KV

During the LC period 110KV Mandapam SS will be availed total shut down.

SUB TO TOTAL S/D OF MANDAPAM SS

S.P.KOIL 230 KVTHIRUVALAM 230 KV

For replacement of aged disc at terminal tower in 230 KV Thiruvalam SS and EHT line maintenance work.

During the period of LCi. 110 KV Thiruvalam â€“ Gudiyatham feeder line LC in between from 230 KV Thiruvalam SS and 110 KV Pakkam SS.ii. 110 KV Vaduganthangal SS of VEDC/Vellore and 110KV Pakkam SS of TEDC/Thirupattur are availing total Shutdown.Hence there will be no interruption of supply please.

THANJAVUR 230 KV

110 KV Thanjavur Link - 1 & 2 feeders, breakers, CTs & LIs (one after another)

1) For monthly maintenance works by the AEE/Mtce/Thanjavur.2) For rectification work in Thanjavur Link-1 feeder by the AEE/Lines/Thanjavur.

During the LC period,1) the other end (i.e. Thanjavur 110 KV Grid SS) will avail LC on the same day, 2) 110 KV Manimandapam SS will avail shutdown (Relief: 9 MW),3) all other 110 KV feeders will be in tied condition, 4) no supply interruption to any SS.


THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Vellore II feeder (In between 230KV SS Thiruvalam to 110KV Katpadi SS).

During the period of LCi. 110 KV Thiruvalam â€“ Vellore II feeder line LC in between 230KV Thiruvalam SS-110KV Katpadi SS. ii. The 110KV Vellore SS is availing total Shutdowniii. The 110KV Karnambut SS, Sathuvachari SS, Thorapadi SS, Katpadi SS loads will be fed from 110 KV Vellore I feeder.Hence there will be no interruption of supply please

SINGARAPET 230 KV


During the shutdown period,1) 110 KV Ramiyanahalli SS programmed to avail total shutdown 2) 110 KV Harur SS and 110 KV Pappireddipatti SS loads will be fed from 230 KV SS Karimangalam through 110 KV Karimangalam - Ramiyanahalli #hence no interruption of supply.

Ramayanahalli TSD, Harur & Pappireddypatty fed from Karimangalam

SINGARAPET 230 KV




KORATTUR 230 KV



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days



439 Madurai 58742 230 KV TTPS 230KV TTPS - AUTO SS FEEDER I ENTIRE QUARTERLY MAINTENANCE WORK POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC

440 Madurai 59994 230 KV 230KV TRANSFER BUS SECTION -I&II POSSIBLE Tue, 08/Aug/2017 12:00 Tue, 08/Aug/2017 17:00 1 Approved

441 Erode 58759 110 KV INGUR 230 KV 110 kv Erode -Thingalur II # entire no ss will be affected during lc period possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 14:00 1 Approved

442 Erode 60032 110 KV 110KV Pallakapalayam-Sankagiri # II line entire Flashed over disc replacement work Other feeder will cater the load Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Sub to #1 load Approved

443 Erode 60038 BHAVANISAGAR RBCPH UNIT I Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 18:00 1 Approved

444 Erode 60066 110 KV Monthly Maintenance Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Sub to load condition Approved

445 Erode 60110 110 KV jumper tightness work possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

446 Erode 58775 110 KV Salem 400 KV monthly maintenance work possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

447 Madurai 58791 230 KV For monthly Maintenance work No SS will be affected. LC Coordination with TTPS POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved SGC


449 Madurai 58810 400 KV MONTHLY MAINTENANCE WORK 230KV LV NOT IN SERVICE, NO FEEDERS AT 230KV SIDE POSSIBLE Tue, 08/Aug/2017 10:00 Tue, 08/Aug/2017 17:00 1 Approved

450 Erode 58838 110 KV 110 KV Thirukovilur Feeder Breaker and CTs. For Monthly Maintenance work possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

451 Madurai 58858 110 KV 110KV Thiruvarur - Mannargudy Feeder bkr POSSIBLE Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 Approved

452 Erode 110 KV 110KV Guruparapally feeder breaker Monthly Maintenance work Possible Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 0.58333 1 Approved

453 Madurai 59602 110 KV then I 230 KV For monthly mtce work During the LC period the feeders will be radial from other end. Tue, 08/Aug/2017 9:00 Tue, 08/Aug/2017 17:00 1 SUB TO WIND GEN Approved



456 Erode 58539 110 KV 110 KV TDLR-karamadai-II feeder Breaker & CTs For Monthly maintenance works Koilpalayam SS under total Shutdown Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 12:00 1 Approved

457 Erode 58540 110 KV possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

458 Madurai 58919 110 KV For monthly maintenance work NOT POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved


460 Erode 58893 110 KV 110 KV OKM-R.S.Puram 2 Feeder (Breaker, CT's,) For monthly maintenance works. possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 14:00 1 Approved

461 Chennai 58912 230 KV Possible Wed, 09/Aug/2017 5:00 Wed, 09/Aug/2017 10:00 1 Approved

462 Madurai 58946 110 KV 110KV Siruvachur Feeder breaker CT's only For monthly maintenance work POSSIBLE Wed, 09/Aug/2017 10:00 Wed, 09/Aug/2017 14:00 1 Approved

463 Erode 58640 400 KV MTPS SALEM 400KV SS.II MONTHLY MAINTENANCE PROGRAMED LC Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 sub to load Approved464 Erode 58647 METTUR TPH FOR MONTHLY MAINTENANCE possible Wed, 09/Aug/2017 7:00 Wed, 09/Aug/2017 17:00 1 sub to PWD demand

465 Chennai 59038 110 KV 16 MVA PR.TR.I MONTHLY MAINTENANCE WORK Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 12:00 1 Approval by CBD

466 Madurai 58952 230 KV On 230KV sterlite - Anpkm feeder entire For Tower to Tower inspection work. POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

467 Madurai 58979 230 KV For monthly maintenance works. POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

468 Chennai 59024 110 KV 110KV Sriperumbudur - Porur feeder I Jumper checking work. Possible (slc) Wed, 09/Aug/2017 5:00 Wed, 09/Aug/2017 12:00 1 Approved

469 Madurai 59057 110 KV 11OKV SR PUDUR # 1 110KV SR Pudur # 1 radial from SR Pudur to KDR End POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved


471 Madurai 59092 KDR PH-2 Machine Exciter cleaning No generation in KDR PH-1 POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved


110KV VISWANATHAPERI FEEDER BREAKER WITH C.T


DURING THE L.C PERIOD 110KV NALLAMANAICKENPATTI SS,110KV VISWANATHAPERI SS,110KV NARANAPURAM SS & 110KV PULIANGUDI SS WILL BE RADIAL FROM 110KV VEERASIGAMANI-II FEEDER OF 230KV KODIKURUCHI SS.HENCE NO SS AFFECTED.


THIRUVALAM 230 KV

i) On Auto Tr. â€“II, HV-II, LV-II Breaker and CTâ€™s,Breaker and CTâ€™s ii)On 110KV Vellore-II Feeder, 110KVGudiyattam Feeder, Breaker and CTâ€™s,(110kv Western Bus) for monthly maintenance work

i) For monthly maintenance work in Auto Transformer â€“II, HV-II, LV-II Breaker and CTâ€™s, 110KV Vellore-II Feeder,110KVGudiyattam Feeder, Breaker and CTâ€™s, (Western Bus)ii) 110KV Arcot SS Loads will fed from 230KV Arani SS.110kv Karnambut SS,Sathuvachari SS, Thorapadi SS,KatpadiSS will fed from Tvlm-Vellore-I Feeder.To Energise New 110KV Thiruvalam-Karnambut Feeder.( to carry out Bay shifting Re-Engineering Works by GCC WING Thiruvalam at 230KV Thiruvalam SS)

During the period of LCi) The 110KV Vellore SS, 110KV ,110KV Vaduganthangal SS, of VEDC/Vellore and 110KV Pakkam SS of TEDC/Thirupattur are availing Total shutdown on 08.08.2017.The Total Shutdown approved and concurrence obtained by Chief Engineer/Distribution / Vellore110KV Arcot SS Loads will fed from 230KV Arani SS.110kv Karnambut SS,Sathuvachari SS, Thorapadi SS,KatpadiSS will fed from Tvlm-Vellore-I Feeder.To Energise New 110KV Thiruvalam-Karnambut Feeder.ii) Auto-Tr-III ,HV-III,LV-III, Auto-Tr-I ,HV-I,LV-I Auto â€“Tr-IV,HV-IV,LV-IV , will be in service and cater the SS Loads.iii) Auto-Tr-II ,HV-II,LV-II will be in â€˜OFFâ€™ Condition.v) The 110KV Vellore-II and 110KV Gudiyattam feeder,110kv Western Bus will be in â€˜OFFâ€™ Condition v) The 230KV Link-I, 230KV Link-II Feeder, 230KV Chittoor interstate feeders, and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

1. AUTO SS FEEDER I BREAKER TRIPPED CONDITION AT BOTH ENDS2. 29A & 29B ISULATORS KEPT OPEN CONDITION3. EARTH SWITCH SHOULD BE CLOSED CONDITION



FOR MAINTENANCE AND TIGHTNESS CHECKING WORK.

230KV TRANSFER BUS SECTION -I&II already idle condition.HENCE NO INTERRUPTION OF SUPPLY.

110 kv gandhi nagar LILO takeoff Tower and cut point jumper tightening work by ingur lines wing.


UNJANAI 230 KV

GENERATING STATIONS

LOWER METTUR 1

For GRT Annual Relay Tests in Unit I at RBCPH / Bhavanisagar

1. RBCPH Unit I is already under LC for TGB & stub shaft seal assembly rectification works.2. During LC period, PWD demand will only be 5 c/s, being released through PWD sluice. Hence generation loss will not arise.

Already under forced outage 23.08.2015

UDUMALPET 230 KV

110KV Sempatty # Breaker & Line section up to Elayamuthur

DURING LC PERIOD SEC BETWEEN SEMPATTY & ELAYAMUTHUR FED FROM 230KVSS SEMPATTY

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Thirukovilur Feeder (Section between Deviakurichi ss -E.V.Natham ss)

1) Deviakurichy 230KV SS Thirukovilur feeder monthely maintenances work Breaker,CT ‘s.2) Villupuram 230KV SS radial fed from upto E.V.Natham 110KV SS End. 3) There will be no interruption of supply any other SS.

Sub to inter loads fed from Villupuram

110 KV NANGAVALLY # CT, BREAKER, BUS & LINE SWITCHES

1)Concurrence Already obtained from M/s. JSW Ltd.,2) Already the 110 KV Nangavally SS & M/S.JSW Ltd., fed from Mettur 230 KVSS. Hence, the maintenance only will be taken CT, Breaker & Bus Switch at Salem 400 KVSS / K.R.Thoppur end.

Sub to JSW concurrence


On 230 KV TTN - TTPS -I feeder Breaker with CT bus & line side switches.


KAYATHAR 230 KV

110 KV Kayathar - Gangaikondan Feeder, breaker with CT, and Lines work section between kayathar to gangaikondan

a) For Monthly maintenance workb) Lines Inspection section between kayathar to gangaikondan

During the LC period other end also avails LC and gangaikondan ss will be fed from thalaiyuthu SS. Hence no ss affected.


KANARPATTY 400 KV

400/230KV ICT 1 MAIN, TIE BREAKERS WITH CT AND TRANSFORMER

APPD IN 133 OCC VIDE ITEM NO.116

DEVIAKURICHI 230 KV

110 KV Thirukovilur feeder will be kept radial from Villupuram 230KV SS end.

Sub to inter loads fed from Villupuram

THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CTs and Line side isolator maintenance work.

During the LC period the 110KV Mannargudy SS, 110KV Okkanadu kelaiyur SS, 110KV Ullikottai SS supply will be fed from T(K)GTPS Generating station (Radial). Hence there will be no interruption of supply to any other SS.


HOSUR 230 kV

Inter loads already fed from Guruparapally

110 KV Theni- Kinnimangalam I &II # Breaker with CT only ( One by one )


315MVA,400/230KV Auto Transformrer -2 With Tie - 4

During the above shutdown period The 315MVA,400/230KV Auto Transformrer -1 will cater the load of 315MVA,400/230KV Auto Transformrer -2 with out interupption


KAYATHAR 230 KV

110KV MAELAKALLUR-TALAYUTHU SEC B/W PALAYAPETTAI&TALAYUTHU.

FOR DEFECTIVE DISC REPLACEMENT AT VARIOUS LOCATION.

DURING THE LC PERIOD,PALAYAPETTAI SS WILL BE RADIALYY FED FROM MAELAKALLUR.HENCE NO SS AFFECTED


THUDIALUR 230 KV

Koilpalayam TSd and Keeranatham fed from Karamadai

THUDIALUR 230 KV

110 KV Sandinallah feeder Br & CTs& Bus bar protection CT cable replacement works

For monthly maintenance works & Bus bar protection cable replacement work by P&C /Wing /Tdlr

1. Maruthur SS under total shutdown & Other SS Jagathala,Kattapettu, Kothagiri are fed from Sandinallah SS2. 110 KV Bus bar protection will be kept off for bus bar protection cable replacement work by P&C/TDLR

Maruthur TSD and other inter loads fed from Sandinallah. 110 KV Bus bar protection kept out

KAYATHAR 230 KV

110 KV Kayathar - N.S.Puram Feeder, breaker with CT only


LOWER METTUR 1

110KV BPH1-BPH2 Feeder - SF6 Breaker, CT, Line side Isolator and Earth Switch

5.Monthly maintenance work in 110KV BPH1-BPH2 Feeder - SF6 Breaker, CT, Line side Isolator and Earth Switch

(a) During the above L.C period Unit 1 will be in Non-standby and Unit-2 will be in standby condition.(b)The other end BPH2 applied L.C on that day on 09.08.2017.(c) 110 KV BPH â€“ 1 to MDPH feeder will be in service

sub to load, Thumbipady trf to MTR and 110 KV BPH2 # loads fed from KRT


During the LC period,1)110 KV R S Puram SS under total shut down.2)110 KV R S Puram 2 feeder loads will be transferred to 110 KV R S Puram 1 feeder.3)Hence no ss will be affected.

RS Puram TSD and other inter loads fed through RS Puram #1

MYLAPORE 230 KV

230 / 33 KV , 100 MVA POWER TRANSFORMER - I

For attending Monthly Maintenance Work by JE / Mtce / 230 / 33 KV GIS SS Mylapore

During the above shutdown period Power Transformer I will not be in service , the load may be restricted within the capacity of 100 MVA Power Transformer -II

PERAMBALUR 230 KV

During the above period of shut down 1)110KV Siruvachur SS also avaling total shut down. 2)110KV Pudukurichy SS and MRF load will be fed from 110KV Kalakudy Grid SS.


GENERATING STATIONS

MACHINES -2 GENERATOR AND ITS AUXILIARIES

DURING THE LC PERIOD THE 230KV FEEDERS ARE IN SERVICE AND THE PWD DEMAND IS MEET OUT THROUGH PWD.MACHINES 1,3& 4 ARE IN STAND BY CONDITION


KADAPPERI 230 KV

1.16 MVA PR.TR.II&III WILL BE INSERVICE CATER THE ENTIRE 11 KVLOAD

Approval by CBD


No ss will be affected. During the above LC period 230KV sterlite SS will be radially fed from TTPS end.


STERILITE SW STATION 230 KV

On 230 KV Sterlite -Annuppankulam feeder breaker with CTs and Line isolators only.

During the LC period,the other end has also proposed LC on the same date. M/S. Sterlite-CPP generation (if available) will be exported to 230KV TTPS end and no other SS will be affected please.


KADAPPERI 230 KV

110KV Sriperumbudur - Porur feeder I loads transferred to 110KV Sriperumbudur - Porur feeder II

Subject to CBD concurrence

KODAIYAR PH2

GRT Annual relay testing, Monthly Maintenance of breaker & CT


LOWER METTUR 2

110 KV LMBPH 2 to LMBPH 1 feeder equipments, Breaker, line side isolator and Earth switch at LMBPH 2.

Monthly maintenance works in 110KV LMBPH 2 to LMBPH 1 feeder equipment and its Line side isolator and Earth switch,

a)During the above L.C period Unit 1 & 2 are standby condition or in service based on the PWD demand. b)The other end LMBPH 1 applied L.C on the day ie 09.08.17. c) 110 KV LMBPH-3 & K.R.Thoppur feeders will be in service.

sub to load, Thumbipady trf to MTR and 110 KV BPH2 # loads fed from KRT

GENERATING STATIONS

KODIYAR PH 2

SUB TO GRID CONDITION



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

472 Madurai 59104 230 KV on 230KV PGCIL-2 Bkr & Ct's. Monthly Mtc work. POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

473 Madurai 59106 110 KV on 110KV SVGA-KVNR # S/B SVGA- M.Madurai. Tree Cutting Work. POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

474 Chennai 58690 110 KV 110KV Capacitor Bank-II(01752) Quarterly maintenance work Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

475 Madurai 59115 110 KV 110KV Pugalur - Puliyur Feeder Breaker, CTs Monthly Maintenance Work POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

476 Madurai 59159 230 KV 230 KV Bus Coupler Breaker MONTHLY MAINTENANCE WORK POSSIBLE Wed, 09/Aug/2017 10:00 Wed, 09/Aug/2017 17:00 1 Approved

477 Chennai 59203 110 KV 110kv Velachery-OH Feeder Maintenance work Idly charged feeder Possible Wed, 09/Aug/2017 10:00 Wed, 09/Aug/2017 17:00 1 Approved

478 Erode 59239 110 KV GOBI 230 KV For monthly maintenance work Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved SGC


480 Madurai 59251 110 KV POSSIBLE Wed, 09/Aug/2017 12:00 Wed, 09/Aug/2017 14:00 1 Approved SGC


482 Madurai 58695 110 KV Monthly maintenance NOT POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

483 Madurai 58697 110 KV Monthly maintenance NOT POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

484 Madurai 59287 230 KV 230 KV Checkanurani - Ind Bharath feeder entire For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved SGC

485 Erode 59402 230 KV MTPS Salem 400KV Feeder-II Programmed LC repeat Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 p-id 58640 Repeat

486 Madurai 59412 110 KV LINE MAINTENANCE WORKS Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

487 Erode 59413 KUNDAH PH1 UNIT NO : 03 possible Wed, 09/Aug/2017 8:00 Thu, 10/Aug/2017 17:00 2

488 Madurai 59361 110 KV then I 230 KV POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 13:00 1 Approved SGC

489 Erode 59441 110 KV Erode 110 KV MONTHLY MAINTENANACE WORK DURING LC PERIOD NO SS WILL BE AFFECTED approved Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 14:00 1 Sub to grid voltage Approved


491 Chennai 58719 230 KV 230 KV KALIVANTHAPATTU # (OCC Approval ) Monthly Maintenance 230 KV S.P.KOIL #, will be in service. Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

492 Madurai 59414 110 KV LINE MAINTENANCE WORKS POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved SGC

493 Erode 59490 230 KV OCC approved Possible Wed, 09/Aug/2017 10:00 Wed, 09/Aug/2017 17:00 1 Approved


495 Chennai 59523 400 KV 400KV Palavadi-1 # Maintenance works Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved


497 Chennai 59630 230 KV 230 KV Bus Coupler Breaker with CT’s For monthly maintenance works 230 KV BUS A will be in service and 230 KV BUS B will be in stand by Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

498 Chennai 59635 230 KV 230KV Villupuram – Acharapakkam # Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

499 Chennai 59643 230 KV 230KV Villupuram – Acharapakkam # Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

500 Erode 59647 230 KV 230KV MTPS II feeder Monthly maintenance work During the LC period other 230KV feeders will be in service Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Sub to load Approved

501 Erode 59671 230 KV 230 KV Arasur -Kundha PH 2 feeder Breaker& CTs. Possible Wed, 09/Aug/2017 12:00 Wed, 09/Aug/2017 14:00 1 Approved

502 Erode 59673 230 KV 230 KV Arasur -Gobi feeder Breaker& CTs. Possible Wed, 09/Aug/2017 14:00 Wed, 09/Aug/2017 16:00 1 Approved

503 Erode 59725 110 KV For monthly maintenance works. Approved Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 12:00 1 Sub to grid voltage Approved

504 Chennai 59745 110 KV 110kv Alamathy feeder. Maintenance work 110KV Alamathy feeder will not be in service To be discuss Wed, 09/Aug/2017 10:00 Wed, 09/Aug/2017 17:00 1 Approved SGC

KARAIKUDI 230 KV

During the LC Period All other 230KV #'s tied with Grid.Hence there will be No interruption ofSupply.

SUB TO LOAD CONDITION: PGCIL #1 LC APPD IN 133 OCC VIDE ITEM NO.101

KARAIKUDI 230 KV

During the LC Period the 110KV M.Madurai SS & 110KV Nelmudikarai SS under TSD. Hence there will be No interruption of Supply.



During the period of shutdown 110KV capacitor bank I will be continued in service

Approval by SE/O

PUGALUR 230 KV

During the LC period, 110KV Puliyur SS availing total shutdown and remaining 110KV Thanthonimalai,110KV Velliyanai SS,110KV Kanilayampatty SS,110KV Mayanur SS,110KV Chinthamanipatty SS and Panjapatty SS load will be fed from 110KV Trichy SS via 110KV Ayyermalai SS.Hence there is no interruption to any SS. M/S Welspun ltd,Solar generation 50MW in 110KV Panjapatty SS, and 50MW in 110 KV Ayyermalai SS are avilable.Concurrence obtained from EE/O/Trichy.


EACHANGADU 230 KV

230 KV Bus Coupler in stand by equipment since load flow does not affected.

THARAMANI 230 KV


110 KV Periyakodivery Feeder Breaker, CTs with line switch

1.110 KV Kavillipalayam SS nad 110 KV Pungampaiii SS may avail total shutdown,supply to other SS may fed from Moyar end2.Subject to the load condition of the feeder

Sub to load after availing Kavillipalayam and Pungampalli TSD

PASUMALAI 230 KV

110KV Pasumalai - Sakthi Sugars # Line in the Section between Sakthi sugars and Sivagangai

Flashed Over Disc replacement works at Loc 141

1) The sakthisugars feeder is kept fed from Alkl end through 110KV Alagarkoil - Karaikudi Feeder feeding Nattarmangalam SS utpo Sakthisugars 2) At Sakthisugars the switch towards Sivagangai will be kept opened. 3) 110KV Alagarkoil - Karaikudi Feeder is also radial from Alagarkoil upto Tirupathur SS Line links feeding Narasingampatti, Melur SS and Thaniyamangalam SS 4) At Tirupathur SS, the switch towards Alagarkoil is kept open 5) 110KV Kavanoor - Manamadurai Feeder LC has been applied by EE/O/Kavanoor 5)110/22KV Manamadurai 110/22KV Arasanoor, 110/33-11KV Nelmudikarai SS and 110/11KV Uranganpatti SS will be under total Shutdown.


PASUMALAI 230 KV

110KV Pasumalai - Sakthi Sugars # Line LC in the Section between Natarmangalam and Arasanoor

Tree cutting works in the Loc between 52/14 to 52/15 and 52/21 to 52/22

1) The sakthisugars feeder is kept fed from Alkl end through 110KV Alagarkoil - Karaikudi Feeder feeding Nattarmangalam SS 2) At Nattarmangalam SS the switch towards Nelmudikarai SS is to be kept opened. 3) At Arasanoor SS the switch towards and Nelmudikarai SS is to be kept opened. 4) 110KV Sakthisugar -Sivaganga Feeder will be in grid. 5) The Sakthisugars - Pasumalai (Presently Alaagrkoil Feeder will be radial from Sakthisugars upto Arasanoor SS., 6)110KV Alagarkoil - Karaikudi Feeder is also radial from Alagarkoil upto Tirupathur SS Line links feeding Narasingampatti , Melur SS and Thaniyamangalam SS. 7) At Tirupathur SS the switch towards Alagarkoil is kept open. 8) 110KV Kavanoor - Manamadurai Feeder LC has been applied by EE/O/Kaavanoor 9)110/22KV Manamadurai 110/22KV Arasanoor SS,110/33-11KV Nelmudikarai SS and 110/11KV Uranganpatty SS will be under Shutdown.

SUB TO LOAD CONDITION AND NORMALIZATION OF SAKTHI SUGARS TO SVG LC

SEMBATTY 230 KV

1. 110KV SBT - Theni I # Bkr and CTs2. 110KV SBT - Theni II # Bkr, CTs & relays

1. Monthly maintenance work2. Relay testing work

During the LC period the feeders will be radial from other end. Hence no interruption to any SS.


KODIKURICHY 230 KV

110KV Kayathar feeder breaker with CT and Line Isolators

KODIKURICHY 230 KV

110KV Kayathar feeder breaker with CT and Line Isolators


SUB TO CONCURRENCE FROM IND BHARTH


KAVANOOR 230 KV

110 KV KAVANOOR-MMDU-SVGA # SEC. BET. KAVANOOR & MANAMADURAI

FEEDER TO BE KEPT RADIAL FROM SIVAGANGA TO MANAMADURAI.TOTAL S/D AVAILED MANAMADURAI SS.


GENERATING STATIONS

FOR 87GT ABB RELAY COMMISSIONING WORK BY P&C WING KUNDAH AND MONTHLY MAINTENANCE WORK.


3 days LC, sub to grid and other units availability


110 KV THENI - PERIYAR I & II # BREAKER WITH CT ONLY(ONE BY ONE)


DURING THE LC PERIOD THE #WILL BE RADIAL FROM PERIYAR END.


110 KV CAPACITOR BANK I BREAKER AND CT AND ITS CELL

SAMAYAPURAM 230 KV

230KV SMPM-TRICHY # Breaker & CT's , Line isolators and entire line portion.

Monthly Maintenance work line Patrol work by AE/Lines/kallakudy.

1. During the shutdown period 230 KV SMPM SS will be radially fed from 230 KV SS poyyur ss 2.The other end 230 KV SS Trichy also availing LC on the same date & time. 3.No interruption to any other 110 KV SS.

SUB TO LOAD CONDITION AND NEY ICT LOADING

VEERAPURAM 230 KV


KAVANOOR 230 KV

110 KV KAVANOOR-VALINOKKAM-ARKAY SEC.BET.VALLINOKKAM &KEELAKARAI

FEEDER TO BE KEPT RADIAL FROM ARKAY UP TO KEELAKARAI&FROMKAVANOOR UPTO VALINOKKAM.TOTAL S/D AVAILED KILAKARAI SS.

SUB TO TOTAL S/D OF ERVADI SS AND ARKAY GEN

KARAMADAI 230 KV

400/230KV ICT II HV/LV breakers,HV/LV CT's&HV/LV LAS

For monthly maintenance work of ICT II HV/LV breakers,HV/LV CT's&HV/LV LAS

Approved vide Sl no 123 in 133rd OCC

UDAYATHUR 230 KV

230KV POWER TR4,HV & LV BREAKER.& 33KV SIMRAN 1 TO4

MONTHLY MAINTENANCE WORK & 33LV 4 BUS MAINTENANCE WORK

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO 3KV SIMRAN 1 TO 4. IF WIND GEN . AVAILABLE ON TH DAY POWER TR.4 LOADS WILL BE FED FROM OTHER POWER TRS & POWER TR4 ONLY TAKEN FOR MTCE WORK


Thiruvalam 400 KV

A) 400KV Palavadi-1 feeder kept in off condition.B) All other feeders(400KV & 230KV)will be in service.

Subject to Approval from OCC

THIRUVARUR 230 KV

110KV T(K)GTPS-MANNARGUDI-THIRUVARUR FEEDER (LP:110KV ULLIKKOTTAI SS TO 110KV MANNARGUDI SS)

PREMONSOON INSPECTION WORK BY AE/L/PATTUKKOTTAI

1) DURING THE LC PERIOD, 110KV OKKANADU KEELAIYUR SS AVAILED TOTAL SHUTDOWN. 2) 110KV ULLIKKOTTAI SS RADIALLY FED FROM T(K)GTPS AND 110KV MANNARGUDI SS RADIALLY FED FROM 230KV THIRUVARUR SS. 3) NO INTERRUPTION TO ANY SUBSTATION.


CUDDALORE 230 KVVILLUPURAM 230 KV

To carry out Breaker and CT’s Monthly Maintenance Work. AndFor replacement of weak insulators at location

1.Both ends will be H/T and kept opened and1) The feeder will be kept off.2) 230 KV Villupuram and T.V.Malai feeders will be in service.Hence No interruption of supply to any SS.

VILLUPURAM 230 KV

To carry out Breaker and CT’s Monthly Maintenance Work. AndFor replacement of weak insulators at location No.210

1.Both ends will be H/T and kept opened and1) The feeder will be kept off.2) 230 KV Villupuram and T.V.Malai feeders will be in service.Hence No interruption of supply to any SS.

METTUR AUTO 230 KV

ARASUR 230 KV




ARASUR 230 KV




ARASUR 230 KV

110KV Capacitor bank-III breaker and CTs and cell units.

During the L.C period, remaining 2 nos. 24 MVAR capacitor banks will be in service.

Alamathy 400 KV

Alamathy local condition?



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days


506 Chennai 59679 110 KV 110 KV Uthangal LILO Line Loc. 4 & 5 Painting to be done Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

507 Erode 59680 230 KV MTPSII 230KV METTUR AUTO FEEDER Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Sub to load Approved

508 Erode 59816 400 KV 400KV Thiruvalam - 1 Feeder postponed Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Postponed

509 Chennai 59837 230 KV All other feeder in service. To be discuss Wed, 09/Aug/2017 6:00 Wed, 09/Aug/2017 9:00 1 Approved

510 Erode 59768 110 KV possible Wed, 09/Aug/2017 10:00 Wed, 09/Aug/2017 17:00 1 Sub to wind generation Approved


512 Madurai 59794 230 KV 230 KV APKM - Sterlite feeder entire POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved


514 Chennai 59968 230 KV 230 KV KTR-SPR Jumper tightness at various location All other feeder will be in services To be discuss Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

515 Madurai 59871 230 KV AUTO TRANSFORMER I Monthly maintenance work POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

516 Chennai 59934 110 KV 110 KV Railway II feeder. For EHT Line Maintenance Works Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved


518 Chennai 60002 110 KV i)For Monthly Maintenance Works Possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

519 Erode 60033 110 KV 110KV Pallakapalayam-Sankagiri # II line entire Flashed over disc replacement work Other feeder will cater the load possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Sub to #1 load Approved

520 Erode 60039 BHAVANISAGAR RBCPH UNIT II possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 18:00 1 Sub to PWD demand

521 Erode 60056 230 KV possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Sub to load Approved

522 Erode 60111 110 KV jumper tightness work possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved SGC

523 Erode 58776 230 KV Salem 400 KV monthly maintenance work Both end Monthly Maintenance Work possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 sub to load Approved


525 Erode 58839 110 KV For Monthly Maintenance work possible Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

526 Madurai 58860 110 KV 110KV Thiruvarur - Narimanam - II feeder POSSIBLE Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

527 Erode 230 KV 230KV Shoolagiri feeder breaker Monthly Maintenance work Possible Wed, 09/Aug/2017 0.375 Wed, 09/Aug/2017 0.58333 1 Approved

528 Erode 110 KV 110/11&33KV GCs breaker Monthly Maintenance work Possible Wed, 09/Aug/2017 0.375 Wed, 09/Aug/2017 0.58333 1 Approved

529 Erode 230 KV 230/110KV Auto Transformer -2 Monthly Maintenance work Possible Wed, 09/Aug/2017 0.375 Wed, 09/Aug/2017 0.58333 1 Approved

530 Erode 60070 230 KV 230KV Idukki # Breaker & Line entire . Monthly Maintenance Postponed Wed, 09/Aug/2017 9:00 Wed, 09/Aug/2017 17:00 1 Approved

531 Erode 400 KV 110 KV Palavadi - Dharmapuri # For commissioning & charging activity Possible Wed, 09/Aug/2017 8:00 Wed, 09/Aug/2017 17:00 1 Approved SGC

532 Madurai 59237 110 KV 110 KV SRP - KDR I # section between VNR to PPI Tree clearance work Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

533 Madurai 58554 110 KV 110KV feeder breaker(bay110) No interruption of power supply since feeder not comissioned Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 14:00 1 Wrong entry

534 Madurai 58559 230 KV 230KV veeranam-kodikurichi feeder with line switch Monthly Maintenance Work NOT POSSIBLE Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

535 Erode 58593 230 KV KUNDAH PH3 230KV PH3 TO PH4 FEEDER For monthly maintenance work. Both end open condition, MODS are open condition. possible Thu, 10/Aug/2017 8:00 Thu, 10/Aug/2017 17:00 1 sub to load Approved

536 Erode 58614 110 KV KUNDAH PH2 Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

537 Erode 58896 110 KV 110 KV OKM-Sulur feeder (Breaker, CT's,) For monthly maintenance works. Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

538 Erode 58897 230 KV Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

539 Madurai 59033 400 KV NOT POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Not Approved

540 Chennai 58900 400 KV 400 KV Thiruvalam -I feeder and its bay equipments 400 KV Thiruvalama-I feeder will not be in service. Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 17:00 1 Approved

541 Chennai 58945 230 KV KITS 230 KV 80MVA Auto transformer II For monthly maintenance works Possible Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 17:00 1 Approved


VILLUPURAM 230 KV

110 KV Thirukoilur - Deviyakuruchi # ( Pudhupattu Spur line)

For tightening of loose jumpers in the 110 KV Sankarapuram - Pudhupattu line

1.)110 KV switch towards pudhupattu spur line at sankarapuram SS will be kept opened . 2.)110 KV Pudhupattu SS availing total shutdown. No interruption of supply to any SS

CUDDALORE 230 KV

110 KV Uthangal and 110 KV Srimushanam will be availing TSD. 110KV Pappakudi to be transferred to Kadalangudy

Subject to LD/MDU concurrence

MONTHLY MAINTENANCE WORKS TO BE CARRY OUT .

UNIT IN SERVICE. ALL 400KV FEEDERS ARE IN SERVICE. 230KV FEEDERS MTPS,GOBI,STANDBY TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.

PALAVADI 400 KV

Monthly Maintenance works by Maintenance wing

No interruption of supply, Load fed through 400KV Thiruvalam - 2 Feeder

OCC approval not obtained

230 KV NCTPS â€“ Tondiarpet 1, 110 KV ETPS â€“ Tondiarpet, 110 KV Manali â€“Tondiarpet, 110 KV Tondiarpet â€“ RK Nagar & 33KV Tondiarpet â€“ KKD Nagar.

Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing @ 83 & Ganutry of 230KV NCTPS- Tondiarpet 1 feeder. (110KV lines crossing)

PONNAPURAM 230 KV

110 KV Ingur I # Breaker, CTs & line upto Selampalayam SS

For monthly maintenance works & Annual testing by P&C Wing

Subject to the load condition, 1.110KV Ingur-I will be kept radial from other end up to 110KV Selampalayam SS,Hence No SS will be affected.

TRICHY 230 KV

230 KV Trichy – Samayapuram feeder Breaker,CTs , Line Isolator and line entire.




ANUPPANKULAM 230 KV

(a) For monthly maintenance work. (b) Premonsoon inspection.

During the LC period the other end also availing LC on the same date. Hence no SS will be affected.


Kurukathi 230 KV

230 KV Buscoupler Breaker and CT's with 230 KV Main Bus

To carry out 230 KV Bus stability test for 230 KV future feeder CT's at 230 KV Kurukathi SS by AEE/P&C/Erode

During LC period 1)230 KV Bus 'A' will be in service 2). 230 KV Bus coupler will be hand tripped and Isolators 201 89A, 201 89B will be opened 3). 230KV &110KV feeders will be in service

230 KV Bus A will cater the load

KORATTUR 230 KVkinnimangalam 230 KV

During the LC period other two Auto transformers will be in service and scatter the load


THIRUVALAM 230 KV

During the period of LCi. 110 KV Railway II feeder breaker will be in â€œ OFFâ€ condition at both end.ii. 110 KV Railway I feeder will be in �service.Hence there will be no interruption of supply please.

Subject to Railway concurrence

SINGARAPET 230 KV

230 KV Vinnamangalam # Breaker, CTs & line isolators



Other 3s will cater the load

THIRUVALAM 230 KV

i)On 110KV Railway- II Feeder Breakers and CTâ€™s

During the period of LCi) Auto-Tr-I ,HV-I,LV-I , Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS Loads.ii) The 110KV Railway-II Feeder will be in â€˜OFFâ€™ conditioniii) The 110KV Railway-I Feeder will be in â€˜ONâ€™ Conditioniv) The Railway Traction SS Loads will fed from 110KV Railway-I Feeder iv) The 230KV Link-II, 230KV Chittoor interstate feeders,230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

UNJANAI 230 KV

GENERATING STATIONS

LOWER METTUR 1

For GRT Annual Relay Tests in Unit II at RBCPH / Bhavanisagar

1. During LC period, PWD demand will only be 5 c/s, being released through PWD sluice. Hence generation loss will not arise.


VINNAMANGALAM 230 KV

230 KV Vinnamangalam - Singarapet feeder breaker, CTs & line isolators

For attending monthly maintenance works and for jumper tightness checking works in cut point towers of 230 KV VNM â€“ Singarapet #.

1 Total shutdown has been approved by CE/D/Vellore vide Memo. No.:CE/D/VLR/EE/AEE/Gl/ F. Shut down/ D. 337 /2017, Dt:22 .07.2017 2,Total shutdown has been approved bySE/D/Tirupatture vide Memo.No:SE/TEDC/TPR/ Gen / AE / F.Shutdown/D.717/17, dt:24.07.2017.3,There will be no interruption of supply to any sub stations.

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Thammampatty Feeder(Section between Mettla ss –Godamalai ss)

1)Thammampatty 110KV SS availing total shutdown on that day .2)Pudhanchandai 230KV SS radial fed from upto Mettala 110KV SS End 3)Deviakurichi 230KV SS radial fed from upto Godamalai 110KV SS End 4)There will be no interruption of supply any other SS.

Thammampatty TSD, Upto Gudamalai fed from DKY and Upto Metala fed from PSI

230 KV MTPS II # CT, BREAKER, BUS & LINE SWITCHES

KAYATHAR 230 KV

110 KV Kayathar - Arumuganeri Feeder, breaker with CT and Lines work section between kayathar and palayamkottai SS

a) For monthly maintenance workb) Lines inspection between kayathar to palayamkottai SS

During the LC period, Palayamkottai ss will be fed from 110 KV arumuganeri SS. Hence no ss affected


DEVIAKURICHI 230 KV

110 KV Deviakurichy-Singipuram feeder- II Breaker, CTs

110KV Deviakurichy - Singipuram feeder- II will be kept radial from Singipuram 230KV SS end.

inter loads fed from Singapuram

THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CTs and Line side isolator maintenance work

During the LC period the 110KV Thiruvarur - Narimanam I feeder will be in service. Hence there will be no interruption os supply to any other SS.


HOSUR 230 kV

Approved vide Sl no 97 in 133rd OCC and Sub to load

HOSUR 230 kV

11 KV & 33 KV GC load TSD

HOSUR 230 kV


UDUMALPET 230 KV

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 230KV Myvadi I&II FEEDERS

OCC approved on 09.08.17 vide Sl No 96

PALAVADI 400 KV


New 110kV # commissioning works

SRPUDUR 230 KV

During the LC period 110 KV SR Puthur - KDR I feeder will be radial from SRP upto VNR SS (incl) and radial from KDR upto PPI (Incl).Hence no ss will be affected.

SUB TO WIND GEN AND RAILWAY TRACTION CONCURRENCE

kumbakonam 230 KV

Monthly Maintenance of feeder breaker and isolator(Line side)

NOT COMMISSIONED

VEERANAM 230 KV

During the lc period there will be no supply in the entire 230kv kodikurchi feeder concurrence obtained from SE/NCES/TIN.

110KV THUDIYALUR FEEDER NO 1&2 SF6 BREAKER AND ITS ACCESSIORIES



sub to gen and to be availed one by one


During the LC Period,1)110 KV Peedampalli ss under total shut down.2)L & T EHT service loads will be fed from 110 KV OKM-NGM II feeder.3)Hence no ss will be affected.

Peedampalli TSD, L&T trf to OKM-NEGM # 2


230 KV OKM-MYVADI Feeder (Breaker, CT's, 89M1, 89M2 & 89L Isolators)Line Entire

For Monthly maintenance works and PMI works by Lines/TDLR wing

During the LC Period, the other 230 KV feeders are in service to cater the ss loads.

Sub to 230 KV OKM-Anikadavu # load

KAYATHAR 400 KV

400 KV MAIN BREAKER FOR ICT-1(406-52),TIE BREAKER (405-52),110 KV LV BREAKER (101-52),110 KV AYYANARUTHU-1,AYYANARUTHU-2 ,KEELAVEERANAM FEEDER BREAKERS,400/110 KV ICT-1 & 110KV BUS 1&2-PT

Monthly Maintenance work and Annual Relay Test by AEE/P&C/Kaythar

During the LC period there will be no supply in 400 KV MAIN BREAKER FOR ICT-1(406-52),TIE BREAKER (405-52),110 KV LV BREAKER (101-52),110 KV AYYANARUTHU-1,AYYANARUTHU-2 ,KEELAVEERANAM FEEDER BREAKERS,400/110 KV ICT-1 & 110KV BUS 1&2-PT. Hence no substation affected.

DUE TO WIND GEN: APPD IN 133 OCC VIDE ITEM NO.129

Alamathy 400 KV

For Annual relay testing and maintenance works.


During the above shutdown period 100MVA Auto transformer I & III will be in service feeding the entire KITS SS loads

PERAMBALUR 230 KV

230KV Perambalur-Trichy feeder breaker CT's wave trap & Line Isolater.

For monthly maintenance maintenance work.

During the above period of shut down 1) 230KV Trichy SS also avaling LC. 2)230KV Perambalur SS will be radially fed from 230KV TAQA end




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

543 Chennai 58667 230 KV Auto Transformer II Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

544 Madurai 59145 230 KV For monthly maintenance purpose. During the LC Period there willbe no supply in the Entire feeder. NOT POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Not Approved

545 Madurai 58954 230 KV On 230KV TTPS-Auto-II feeder entire No ss will be affected. POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved SGC

546 Erode 59013 230 KV monthly maintenance work Other end also availing LC possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

547 Erode 59072 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved



550 Madurai 59116 110 KV Monthly maintenance work. POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

551 Madurai 59155 230 KV 1)&2) Monthly maintenance2)Relay testing POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 16:00 1 Approved

552 Erode 59192 110 KV PYKARA NIL possible Thu, 10/Aug/2017 8:00 Thu, 10/Aug/2017 17:00 1 sub to load Approved



555 Chennai 58693 230 KV 230KV SVC-Sipcot Feeder Lines LC and Jumper Tightness work Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

556 Erode 59243 230 KV GOBI 230 KV Auto Transformer-II HV, LV Breaker and CTs For Monthly maintenance work possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 sub to Auto load Approved


558 Erode 59451 110 KV Erode 110 KV DURING LC PERIOD NO SS WILL BE AFFECTED approved Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 sub to grid voltage Approved

559 Madurai 59290 230 KV 230 KV A Bus For MMW During LC period All the 230 KV Feeders fed through B BUS POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

560 Madurai 59349 110 KV PERIYAR For Monthly Maintenance work. POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 13:00 1 Approved

561 Madurai 59353 110 KV KUTTALAM POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved


563 Erode 59421 110 KV Monthly Maintenance Work possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

564 Erode 59447 230 KV KUNDAH PH4 230 KV KPH 3 # Monthly maintenance work Standby possible Thu, 10/Aug/2017 8:00 Thu, 10/Aug/2017 17:00 1 Sub to load Approved


566 Madurai 59468 110 KV 110KV Alkl-Karaikudy feeder breaker with C.T . For monthly maintenance work POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

567 Erode 59480 230 KV Quarterly Mtce work During the Lc period 230KV KDH FEEDER will caters the load possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 16:00 1 sub to load Approved

568 Erode 59494 110 KV possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

569 Madurai 59533 110 KV Line inspection and Rectification work POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

570 Madurai 59534 110 KV 110KV Kadalangudy -KGTPS feeder entire POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

571 Erode 59565 230 KV Both end Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

572 Erode 59594 230 KV For monthly maintenance works. Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

573 Chennai 59632 110 KV For monthly maintenance works Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

574 Erode 59657 400 KV MTPSII 400KV KARAMADAI-I FEEDER Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved


576 Chennai 59682 110 KV 110 KV – Chitharasur – Sornavoor Feeder 110 KV Kelkavarapattu, Chitarasur, TSD Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

577 Erode 59700 230 KV Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 12:00 1 Sub to Auto load Approved

578 Chennai 59838 230 KV All other feeder in service. To be discuss Thu, 10/Aug/2017 6:00 Thu, 10/Aug/2017 9:00 1 Approved

ECHUR 230 KV

Monthly Maintenance in Auto Transformer II

At the Time of LC1.Auto Tr II HV and LV Breakers are in H/T condition (Off) and both HV and LV isolators are Kept Open and Auto I in service condition after completion of work Auto Tr II, HV and LV Breakers will be charged and isolators are in closed condition. Hence no interruption of supply to any of the Substation.

SANKANERI 230 KV

230KV Sankaneri-Abisekapatti feeder Breaker CTS&Line switches. .

DUE TO WIND GEN: APPD IN 133 OCC VIDE ITEM NO.104


For jumper tightness and tower to tower inspection work.

SUB TO TTPS 3 M/C CONDITION

THINGALUR 230 KV

230KV Ingur feeder Breaker and CTs with line Isolator.


230KV Thingalur # Breaker, CT’s, ,Isolators and Line side Isolator and 230 KV main Bus & Auxillary Bus switch

1.OTHER END ALSO AVAIL LC ON THAT DAY.2.DEPENDING UPON LOAD CONDITION



On 230 KV TTN - TTPS -II # breaker with CT bus and line side switches

For Monthly Maintenance Work. In addition SS erection works of Wave dropper & CVT to be carried out by AE/SS erection/Tirunelveli

No SS Will be affected, Both end Programmed. This LC applied under ID No. 58794 on 19.07.17 at 10.42 Am may be treat as cancel.

SUB TO TTPS 3 M/C GEN

KARAIKUDI 230 KV

1)110KV KKDI-TVNI-VLDR# Bkr & Ct's.2)110KV KKDI-TVNI-VLDR# S/B KKDI-TVNI.

1)Monthly Mtc Work2)Tower to Tower Inspection work.

During the L.C Period the 110KV Poosalakudi SS & A.Pudur SS under TSD. Hence there willbe interruption of Supply.


PUGALUR 230 KV

110KV Pugalur - Renganathapuram feeder Breaker, CTs

During the LC period,the 110KV Malaikovilur and 110KV Pallapatty SS are proposed total shutdown,The remaining 110KV AC Palayam SS,110KV Thalapatty ss load fed from 230KV Rengnathapuram SS. there will be no supply interruption in any 110KV SS. Concurrance obtained from EE/O/Renganathapuram.



1)230/110kv Auto Transformer II HV,LV Breaker and CT2)110kv RNPM-SBT III # Breaker,CT & Relay

1)During LC period 230/110kv Auto Transformer I will be in service and cater the station load.2)110kv RNPM-SBT III # will be radially fed from SBT end intermediate SS 110kv chinnakkampatty SS avail total shutdown load relief 8.9MW . Hence no interruption to any SS.


110 KV PYKARA - SANDYNALLAH #(ENTIRE LINE)

For monthly maintenance work and GRT annual relay testing work

KODIKURICHY 230 KV

1.230KV Veeranam # breaker with HV breaker , CT and all Isolators .2.230 KV Kodikuruchi- Veeranam Feeder ( Entire Line )

1.Monthly maintenance 2.For special Line Patrol work .

1.EE/O /Veeranam has also applied LC on 230kv veeranam breaker on the same day(10.08.2017) 2.230 KV Isolator towards Veeranam will be kept opened in Kodikuruchi SS and 230 KV Isolator towards Kodikuruchi will be kept opened in Veeranam SS ,Hence no SS will be affected .

KODIKURICHY 230 KV

1.230KV Veeranam # breaker with HV breaker , CT and all Isolators .2.230 KV Kodikuruchi- Veeranam Feeder ( Entire Line )

1.For special Line Patrol work .2.Monthly maintenance

1.EE/O /Veeranam has also applied LC on 230kv veeranam breaker on the same day(10.08.2017) 2.230 KV Isolator towards Veeranam will be kept opened in Kodikuruchi SS and 230 KV Isolator towards Kodikuruchi will be kept opened in Veeranam SS ,Hence no SS will be affected .


During the period of shutdown 230KV Sriperumbudur-Sipcot feeder will be continued in service1.110 KV Alikulli SS may avail total shutdown.2.Auto Transformer I and III are in service ,it may cater the load

SEMBATTY 230 KV

1. 110KV SBT - RNPM II # Bkr, CTs and sec. bet. SBT and Gandhigramam SS2. 110KV SBT - Alundur # Bkr, CTs and relays and sec. bet. SBT and Sengurichi SS

1. Monthly maintenance work2. Tree cutting work3. Relay testing work

During the LC period 1. RNPM II feeder will be radial from other end upto Gandhigramam SS.2. Alundur feeder will be radial from other end upto Sengurichi SS. Hence no interruption to any SS.


110 KV CAPACITOR BANK II BREAKER CT AND ITS CELL

CONDUCTING OF ANNUAL RELAY TEST BY AEE/P&C-I /ERODE AND MONTHLY MAINTENANCE WORK


110 KV Periyar-Theni-2 Feeder Breaker with CTs only.

During the LC period the feeder will be radial from Theni up to Periyar. No SS will be affected.


110 KV KGTPS-KADALANGUDI FEEDER BREAKER WITH ENTIRE LINE AT BOTH END.

REGULAR & ROUTINE BREAKER MAINTENANCE AND TESTING WORKS

During the LC period there is no interruption of supply to any ss since other end also availing LC.


KAYATHAR 230 KV

110KV KAYATHAR-ARUMUGANERI FEEDER SEC B/W PALAYAMKOTTAI&SRIMOOLAKARAI

FOR LINE INSPECTION & RECTIFICATION WORK

DURING THE LC PERIOD,1.PALAYAMKOTTAI SS WILL BE RADIALLY FED FROM KAYATHAR.2.SRIMOOLAKARAI SS WILL BE RADIALLY FED FROM ARUMUGANERI


Udumalpet 110 KV

110 KV UDT –Aliyar – I # breaker, CT’s and section between UDT – Poolanginar SS.


Inter loads fed from Aliyar230

KOVILKALAPAL

110 KV Thiruvarur Feeder (Line Portion between T(K)GTPS and 110 KV Ullikkottai SS)

(1) Breaker, CTs, CVTs, Isolators and LAS Maintenance works (2) Breaker testing works

During the LC period supply will be fed from 230 KV Thiruvarur SS upto 110 KV Ullikkottai SS radially. There will be no interruption to any SS.


ALAGARKOIL 230 KV

Feeder will be radial from karaikudy end up to Narasingampatty SS.feeder will be radial from Sakthi sugars end up to uranganpatty SS, A.THEKKUR,S.PUDUR,Thuvarankuruchy SS loads will be transferred to Alkl-kottampatty feeder


ALIYAR 230 KV

230KV ALR-UDT FEEDER CB,CT AND LINE ENTIRE

KARAMADAI 230 KV

110KV Karamadai- Arasur II Feeder breaker, CT's and CVT's

For monthly maintenance work of 110KV Karamadai- Arasur II Feeder breaker, CT's and CVT's

During LC period 110KV Neelambur SS will be fed radialy from 230 KV Arasur SS end and 110KV Kalapatty SS will be under total shutdown.

Kalapatty TSD, Neelambur fed from ASR

KADALANGUDI 230 KV

110KV Mayiladuthurai-Thiruvarur feeder line portion between Mayiladuthurai to Peralam

During the above LC period there is no supply interruption to any SS.110KV Peralam and perambur SS proposed total shut down.


KADALANGUDI 230 KV

1)Maintenance work 2)Line inspection and rectification work

During the above LC period there is no supply interruption to any SS.all other 110KV feeders are in tied condition at Kadalangudy end.Also Kumbakonam urban SS (11KV) proposed total shut down


Udumalpet 400 KV

230KV Myvadi-Othakalmandabam # Breaker & CT line entire


Sub to 230 KV OKM-Anikadavu # load


Auto-I, HV & LV-I CBs, CTs, LASs and 230KV Switches.

During LC period110KV Namakkal SS availing Total Shut down.110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder.No supply interruption.

Namakkal TSD, NGpet trf to Vpatty #

CUDDALORE 230 KV

110 KV CUD-Chitharasur # breaker, CT’s & Line side isolator.

The 110 KV Chitharasur SS will be availing total shutdown. And EID Co – Generation, 110 KV Sornavoor SS & 110KV Nallathur SS, loads will be transferred to the 110 KV Cuddalore – Nathapattu feeder. Hence, no interruption of supply.

MONTHLY MAINTENANCE WORK AS APPROVED BY OCC .

UNIT IN SERVICE. ALL 400KV FEEDERS KARAMADAI-II ,PALAVADI-I&II AND ICT-I&II ARE IN SERVICE.ALL 230KV FEEDERS EXCEPT THINGALUR FEEDER ARE IN SERVICE.


VILLUPURAM 230 KV

Auto Transformer – I ,Southern Bus and 110KV T.V.Nallur #

1.Auto Tfr – I Monthly maintenance work.2.To carry out Breaker and CT’s Monthly Maintenance Work.

1. T.V.Nallur # H/T at 230 Kv Auto Ss. 2. T.V.Nallur SS availing Total shutdown. 3. Auto Tfr II will be in service. 4. Hence No interruption of supply to any SS.

CUDDALORE 230 KV

At Loc 29 (T) Long rod 1 No flashed Over.At Loc 33 (S) 3 nos Insulators flashed over to be replaced.At Loc 37(T) Top phase Jumper Arc to be rectified.

ARASUR 230 KV



During the L.C Period ,the remaining 3 X 100 MVa Auto transformer will be in service. 110 KV Poomalur SS under total shut down.

230 KV NCTPS â€“ Tondiarpet 2, 110 KV ETPS â€“ Tondiarpet, 110 KV Manali â€“Tondiarpet, 110 KV Tondiarpet â€“ RK Nagar & 33KV Tondiarpet â€“ KKD Nagar.

Disc insulators to be replaced by 230KV 120KN polymers insulators by TLC Wing @ 82 of 230KV NCTPS- Tondiarpet 2 feeder. (110KV lines crossing)



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days


580 Chennai 59726 110 KV 110KV Villupuram – Thiruvananamalai # Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

581 Erode 59769 230 KV AUTO-III,HV-III,LV-III Breaker and Its CTs For monthly maintenance works Possible Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 17:00 1 Approved



584 Erode 59817 230 KV 230KV BUS - II No interruption of supply. Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

585 Madurai 59857 110 KV 110KV Valudur - Arkay II feeder entire. POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 SUB TO ARKAY GEN Approved SGC

586 Madurai 59873 230 KV AUTO TRANSFORMER II Monthly maintenance work POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

587 Chennai 59972 230 KV 230 KV KTR-SPR feeder Jumper tightness at various location All other feeder will be in services To be discuss Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

588 Chennai 59877 110 KV 110KV Salai Feeder Breaker & CTs only for monhly maintenance work. Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

589 Chennai 59880 230 KV for monhly maintenance work. Possible Thu, 10/Aug/2017 0:00 Thu, 10/Aug/2017 0:00 1 Approved

590 Madurai 60010 230 KV Thu, 10/Aug/2017 9:00 Sat, 12/Aug/2017 18:00 3 Not Approved

591 Madurai 60015 230 KV Thu, 10/Aug/2017 9:00 Sat, 12/Aug/2017 18:00 3 Not Approved

592 Chennai 59906 230 KV 230KV Kalpakkam - Acharapakkam Feeder Line mtc work Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

593 Chennai 59916 110 KV 110 KV SALAI FEEDER LINE LC 110 KV SALAI TOTAL SHUTDOWN WORK Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

594 Chennai 59936 230 KV 230KV Thiruvalam â€“ S.P.Koil feeder entire. For replacement of aged disc at loc 174 Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

595 Erode 59954 230 KV Auto transformer II & LV II Breaker Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 16:00 1 Sub to Auto load Approved

596 Madurai 58743 230 KV TTPS 230KV TTPS - AUTO SS FEEDER II ENTIRE POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved SGC

597 Chennai 58753 230 KV 230/110kV,100MVA Auto Transformer - II For Routine Maintenance work. Possible Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 17:00 1 Approved


599 Erode 60021 110 KV 110KV Puthansanthai-Namakkal # line entire PMI and Jumper tightness checking Namakkal SS Total Shutdown possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Namakkal TSD Approved

600 Erode 60040 110 KV BHAVANISAGAR 110 KV GC & 11 KV LV possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 18:00 1 Sub to PWD demand

601 Erode 60067 230 KV 230KV Aliyar # Breaker & Line entire Monthly Maintenance possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 sub to Auto load Approved

602 Erode 58840 110 KV For Monthly Maintenance work Capacitor Bank II will be in service Approved Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Sub to grid voltage Approved

603 Erode 60112 110 KV jumper tightness work possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

604 Erode 58777 230 KV Salem 400 KV monthly maintenance work Possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

605 Erode 58789 110 KV Monthly maintenance possible Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

606 Madurai 58794 230 KV For Monthly Maintenance Work No SS Will be affected, Both end Programmed POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved SGC

607 Madurai 58812 400 KV MONTHLY MAINTENANCE WORK 230KV LV NOT IN SERVICE, NO FEEDERS AT 230KV SIDE POSSIBLE Thu, 10/Aug/2017 10:00 Thu, 10/Aug/2017 17:00 1 Approved

608 Madurai 58817 230 KV For Monthly maintenance work POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

609 Madurai 59211 230 KV EE / O / CKNI has also programmed Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 14:00 1 Approved

610 Madurai 59306 230 KV 230 KV Checkanurani - Pasumalai I feeder entire For MMW&LMW and P&C work During LC Period There will be no supply in the entire feeder Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

611 Madurai 60014 110 KV 110 KV KGTPS - Kumbakonam feeder NOT POSSIBLE Thu, 10/Aug/2017 9:00 Thu, 10/Aug/2017 17:00 1 Approved

612 Madurai 58916 110 KV For Monthly Maintenance work Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

613 Erode 59143 230 KV Monthly Maint work Postponed Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

614 Erode 59317 230 KV Postponed Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

ARASUR 230 KV

1)110KV Arasur-Thingalur Feeder breaker,CTs 2)line section between Arasur SS,Sulur SS, Sulur Traction SS ,Somanur SS and Poomalur SS .

For Monthly maintenance work and Tan delta measurement of CT'S BY P & C WING / Coimbatore and PMI works by AEE/Lines /Palladam

During the L.C Period ,1)110 KV Poomalur SS under total shutdown.2)110 KV Sulur ss will be transfered to 230 KV O.K.M SS.3) 110 KV Thirunagar SS and 110KV Vanjipalayam ss will be fed through 110 KV Arasur-Karuvalur-I # from 230 KV Arasur SS .

Poomalur TSD, Sulur transfered to OKM, Thirunagar and Vanjipalayam Trf to Arasur-Karuvalur-I #

Villapuram 110 KV


1. The 110KV isolator switch at Vettavalam Ss towards Villupuram side will be kept open condition.2. The feeder will be kept radial from T.V.Malai 230KV SS end.3. Rajanthangal SS in T.V.Malai # is availing total shutdown.4. Hence no interruption of supply in any SS.

PONNAPURAM 230 KV

Subject to the wind generation, 1.Thungavi SS G.C-II will be transferred to 230KV Udt SS / 110KV Poolavadi #,2. 110KV Ingur-I & II will be kept radial from other end,3. Hence Load will be with limits of other two Auto Trs.& No SS will be affected.

Sub to Auto load and wind gen not feasible

TRICHY 230 KV

230KV Trichy - Perambalur feeder Breaker , CTs, Line Isolator and line entire.




ANUPPANKULAM 230 KV

110 KV NNPT - Reddiapatty feeder section between 110 KV Reddiapatti SS and 110 Kv SIVAKASI ESI SS

Earth wire cut rectification work at LOC.No. 4 to 8

No SS affected, since no SS connected in between the Reddiapatti and ESI SS.

PALAVADI 230 KV


230 KV Bus 1 cater the load

VALUTHUR 230 KV

For attending breaker and it's CT's and isolators Monthly Maintenance work. And Tree cutting work

During the LC period 110KV valuthur -Arkay I and 110KV Arkay - Mandapam - Perungulam feeders will be in service. Hence, there is




KORATTUR 230 KVMOSUR 230 KV

110 KV Salai SS, 110KV KG Kandigai SS total Shutdown avail.Hence there will be no interruption of supply please.

MOSUR 230 KV

230/110KV Auto-III,HV-III,LV-III Feeder Breaker & CTs only

i)110KV Salai SS and 110KV K.G.Kandigai SS Total shutdown avail.ii)Hence there will be no interruption of supply please.

THANJAVUR 230 KV

110 KV Thanjavur - Thiruvarur feeder (Line portion between 110 KV Poondi SS & 110KV Kovilvenni SS)

For strengthening of 110KV Thanjavur - Thiruvarur feeder works by TLC wing (Long LC)

During the entire LC period,1) This feeder will be radial from Thanjavur 110 KV Grid SS upto Poondi 110 KV SS,2) 110KV Kovlivenni SS fed from 230KV Thiruvarur SS.3) Jumber loop removing work in Loc 114.4) no supply interuption of any SS

SINCE POONDI LOADS COULD NOT BE TRD. TO TJR FEEDING DUE TO OVERLOAD THIS LC MAY BE POSTPONED

THANJAVUR 230 KV

110 KV Kadalangudi - Aduthurai - Neyveli feeder (Line protion between Srimushnan & Pappakudi) (Long LC)

For strengthening of Kadalangudi - Aduthurai - Neyveli feeder 110KV SC line by TLC wing (Long LC)

During the LC period,1) 110KV Pappakudi supply fed from 230KV Kadalangudi SS2) 110KV Srimushnan supply fed from Neyveli TS 13) no supply interruption to any SS.

THIS LC MAY BE POSTPONED SINCE LC IS NOT POSSIBLE DUE TO LOADING CONDNS.

S.P.KOIL 230 KV

During period of shutdown, 230 KV S.P.Koil- kalpakkam -I & II , Echur feeders will be in service

MOSUR 230 KVThiruvalam 400 KV

During the period of LC i. 230KV Thiruvalam â€“ S.P.Koil feeder Breakers both end will be in â€œ OFFâ€ condition at 400KV �Thiruvalam & 230KV S.P.Koil SS. ii. All other 230 KV feeders 230KV Link I, Link II, Singarapet feeders are in service.Hence there will be no interruption of supply please

SINGARAPET 230 KV


During the period of LC, 1) Auto transformer II and LV II breaker will be in off condition 3)The Auto transformer I and III will be in service,4) All the 110 KV feeders will be in service5) 110 KV Singarapet Grid SS total shutdown approved and hence no interruption of supply.

ANNUAL MAINTENANCE OF STRUNG BUS INSULAOTRS.

1. AUTO SS FEEDER II BREAKER TRIPPED CONDITION AT BOTH ENDS2. 29A & 29B ISULATORS KEPT OPEN CONDITION3. EARTH SWITCH SHOULD BE CLOSED CONDITION


THIRUVERKADU 230 KV

During the period of shutdown 230/110kV Auto transformer - I will be in service, Hence No Interruption.

KADALANGUDI 230 KV

110KV KGTPS- Kumbakonam feeder portion between KGTPS and 110KV Urban SS.

Stringing of 230 KV DC line between Loc.No. 89 & 90 (crossing span) in 230 KV LILO of Thiruvarur - Kadalangudi 230 KV SC line at Kumbakonam 230 KV SS by TLC/Kumbakonam wing.

No interruption to any SS. The 11KV feeders total shutdown at 110KV Kumbakonam Urban SS. The 110KV Urban and Sakkotai SS load will be managed by 230KV Thiruvarur SS.


UNJANAI 230 KVLOWER METTUR 1

For GRT Annual Relay Tests in 110 KV GC & 11 KV LV Breakers at MHPH / Bhavanisagar

1. During LC period, it is expected that PWD demand will be NIL. Hence, generation loss may not arise.2. During Lc period, RBCPH PWD demand will be only 5 c/s, hence generation loss will not arise at RBCPH.3. During LC period, only 110 KV GC and 11 KV common LV breakers will be hand tripped. 110 KV feeders will not be affected. Hence no SS will be affected.


UDUMALPET 230 KV

THE ABOVE FEEDER LOADS WILL BE FED FROM 230KV MYVADI LINK I & II FEEDERS

DEVIAKURICHI 230 KV

110 KV Capacitor bank I Breaker CTs, Capacitor side Isolator, LAS

DEVIAKURICHI 230 KV

110 KV Singapuram-Deviakurichi I Feeder (Section between Attur ss-Singapuram ss)

1) Singapuram 230KV SS Deviakurichi I feeder monthely maintenances work Breaker,CT ‘s and Thumbal 110KV SS availing total shutdown .2) Deviakurichi 230KV SS radial fed from upto Attur 110KV SS End 3) There will be no interruption of supply any other SS.

Thumbal TSD and other inter loads fed from DKY

230 KV BUS A PT, B/C BREAKER & CTPT, SWITCHES & JUMPERS

During 230 KV Bus A LC Period, 230 KV Bus B will be in service condition. Hence there will be no interruption of supply.

230 KV Bus B in service

SINGAPURAM 230 KV

110 KV DEVIYAKURICHI-I FEEDER/ CT,BREAKER

1.Monthly maintenance 110 kv Deviyakurichi -I feeder will be fed radially from Deviyakurichi end 2.110 kv Thumbal SS is availing TSD on 10.08.2017

Thumbal TSD and other inter loads fed from DKY


On 230 KV TTN - TTPS -II # breaker with CT bus and line side switches


kanrapatty 400 KV

400/230KV ICT 2 MAIN, TIE BREAKER WITH CT AND TRANSFORMER (BAY NO 405,406)

APP IN 133 OCC VIDE ITEM NO.128

KAYATHAR 230 KV

230/110 KV Auto transformer I, HV I and LV I breaker with Ct only

During the LC period, Loads of Auto I will be shared by Auto II and III. Hence no ss affected.


PASUMALAI 230 KV

1)230 KV Pasumalai - Checkanurani # - I BKR & CT,LI only 2).Line Entire.


SUB TOLOAD CONDITION


SUB TOLOAD CONDITION

THANJAVUR 230 KV

For stringing of 230KV DC line between Loc.No 68 & 69 (crossing span) in 230KV LILO of Thiruvarur - Kadalangudi 230KV SC line by TLC wing

During the LC period,1) 110 KV Saakkottai - Pattiswaram feeder supply extended upto 110 KV Kumbakonam R-APDRP SS2) LC line potion between KGTPS & 110KV Kumbakonam R-APDRP SS3) no supply interruption to any SS.

SUB TO TOTAL S/D OF KUMBAKONAM SS AND SAKOTTAI SS

KAYATHAR 230 KV

110 KV kayathar - THalaiyuthu Express Feeder breaker with CT only

During the LC period the feeder will be radial from other end. Hence no ss affected

LC MAY BE PROGRAMMED ON 11.08.2017 SINCE 110KYR-KOD DC $LC

KARUVALUR 230 KV

230Kv Kurukathi - Palladam # Breaker ,CVT, Switches.

Other end of Palladam Ss Availing LC. No Power Interruption to the 110 Kv Feeders

230 KV MTPS1-Ingur # LC recommended

PALLADAM 230 KV

230 KV PALLADAM - KURUKATHI # Breaker and line entire

To carryout monthly maintenance work on equipments by AEE/Maintenance/Palladam and line maintenance work by AEE/Lines/Palladam

1). During the LC period 110 KV Feeders at Kurukathi SS will be fed from Ingur 230 KV SS and 230 KV Ponnapuram SS2) No other SS will be affected




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

615 Erode 58592 230 KV KUNDAH PH3 230 KV PH3 TO PH2 FEEDER For monthly maintenance work. Both end open condition, MODS are open condition. postponed Fri, 11/Aug/2017 8:00 Fri, 11/Aug/2017 17:00 1 Approved

616 Erode 58618 230 KV KUNDAH PH2 Postponed Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

617 Madurai 58577 110 KV PAPANASAM 110KV PPM -OT Patti Feeder breaker with CT NOT POSSIBLE Fri, 11/Aug/2017 10:00 Fri, 11/Aug/2017 12:00 1 DUE TO WIND GEN Not Approved


619 Erode 58541 110 KV For Monthly maintenance works Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 16:00 1 Approved SGC

620 Madurai 58580 230 KV TTPS 230KV TTPS-SIPCOT FEEDER ENTIRE POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

621 Madurai 58581 230 KV TTPS 230KV TTPS-SIPCOT FEEDER ENTIRE POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved SGC

622 Erode 58898 230 KV For monthly maintenance works. Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved SGC

623 Madurai 58921 110 KV For monthly maintenance work POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

624 Erode 58641 230 KV MTPS SALEM 230KV FEEDER MONTHLY MAINTENANCE PROGRAMED LC Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

625 Erode 58652 110 KV To carry out the Monthly maintenance work. Possible Fri, 11/Aug/2017 8:00 Fri, 11/Aug/2017 17:00 1 Sub to load Approved

626 Madurai 58956 230 KV On 230KV TTPS-Sipcot feeder entire No ss will be affected. POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved SGC

627 Madurai 58980 230 KV For monthly maintenance work. POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved SGC

628 Madurai 59071 230 KV For monthly maintenance work POSSIBLE Fri, 11/Aug/2017 10:00 Fri, 11/Aug/2017 16:00 1 Approved


630 Madurai 59160 110 KV MONTHLY MAINTENANCE WORK At present there is no import/export from MCL POSSIBLE Fri, 11/Aug/2017 10:00 Fri, 11/Aug/2017 17:00 1 Approved

631 Madurai 59238 230 KV 100 MVA AUTO TR I HV I & LV I Br,CT During the LC period Auto Tr II & III will be in service. POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 15:00 1 Approved

632 Erode 59403 230 KV MTPS Salem 230KV Feeder Programmed LC repeat Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 p-id 58641 Repeat

633 Madurai 59295 230 KV 230 KV BUS Coupler Breaker For MMW During LC period 230 KV BUS Coupler in standBy condition POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

634 Chennai 59296 110 KV Possible Fri, 11/Aug/2017 10:00 Fri, 11/Aug/2017 17:00 1 Approved

635 Erode 59333 230 KV Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved SGC

636 Madurai 59363 110 KV then I 230 KV POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 13:00 1 Approved


638 Madurai 58703 110 KV Monthly maintenance POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

639 Erode 58727 110 KV For Quarterly maintenance Work. Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Sub to load Approved

640 Erode 59492 110 KV Monthly Mtce work Poolankinaru SS will be fed from 110kv udumalpet ss Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 14:00 1 Approved

641 Madurai 59753 230 KV Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 14:00 1 Postponed

642 Madurai 59754 230 KV Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 14:00 1 Postponed

643 Erode 59502 230 KV Monthly maintenance work Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

644 Madurai 59537 230 KV 230KV PPN-Thanjavur Feeder entire Line inspection and rectification work POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved


646 Erode 59614 110 KV 110KV RC Plant Feeder Monthly maintenance work Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

647 Chennai 59636 110 KV For monthly maintenance work Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

648 Erode 59718 110 KV 110KV Arasur-Karamadai 2 # breaker and CTs. For monthly maintenance works. Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 12:00 1 Approved

230 KV ASR - KPH2 # LC recommended

230KV KPH3 FEEDER , SF6 BREAKER AND ITS ACCESSIORIES



230 KV ASR - KPH2 # LC recommended

110KV PPM- OT Patti feeder breaker with CT maintenance work.

Present PWD demand is 250 CUSECS During the LC period the feeder will be radial from other end.

ACHRAPAKKAM 230 KV

110KV OT Patty - Kayathar feederSection between (OTPatty-Seethaparpanallur )

Defective jumper replacement work at location No.95 and replacement of disc at location No.102.

110 KV isolator towards OT Patty SS will be kept opened in Seethaparpanallur SS and 110 KV isolator towards Seethaparpanallur will be kept opened in OTPatty SS .Hence no SS will be affected.

DUE TO WIND GEN AND PPM GEN

THUDIALUR 230 KV

1. 110 KV Pykara feeder Br & CTs2. 110 KV Arasur Feeder Breaker & CTs

1.110 KV Kathirnayakan palayam SS Under Total shutdown & Aqua sub EHT service will be fed from 110 KV TDLR-PNP #2. 110 KV Inter SS will be fed from 230 KV Arasur SS3. LC will be taken one after another

Kathirnaickenpalayam TSD, AQUA EHT trf to PN Palayam #

Maintenance work and annual testing of LAS

Both end breakers to be tripped conditionBoth end Bus& Line switches opened conditionBoth end earth switches closed condition


Maintenance work and annual testing of LAS

Both end breakers to be tripped conditionBoth end Bus& Line switches opened conditionBoth end earth switches closed condition



230 KV OKM-Palladam Feeder (Breaker, CT's, 89M1, 89M2 & 89L Isolators) Line entire

During the LC period, the other 230 KV feeders are in service to cater the ss loads.

Ensure 230 KV PPM - Sadayapalayam # tie

KAYATHAR 230 KV

110 KV Kayathar - Suruliyar Feeder, breaker with CT only




LOWER METTUR 3

110KV BPH3-BPH4 # BKR, CT, Line isolator, entire line.

During the LC period 1)110KV BPH3-BPH2# and 110KV BPH3-ANTHIYUR# will be in service. 2) Unit I & II will be in service / standby to meet out the PWD Demand. 3) There will be No Loss of Generation during this LC Period. On the same day, BPH4 will also programmed to avail the Monthly maintenance Work. Hence LC may kindly be approved please.


For Tower to Tower inspection and jumper tightness work.



On 230 KV SIPCOT-TTPS Feeder breaker with CTs and line isolators only.

During the L.C period, the other end has also proposed LC on the same date and no SS will be affected please.



230 KV NNPT - AMUTHAPURAM feeder Breaker with CT and Line isolators.

During the LC period there will be no supply in the entire feeder and other end also will be applying LC on the same day. Hence no SS affected during the L.C. period .

SUB TO LOAD CONDITION AND WIND GEN

PUGALUR 230 KV

110 KV Pugalur - Elumathur feeder Breaker, CTs ,Line switch

Monthly maintenance works & 110KV Line CVT testing by P&C wing,Erode

During the L.C Period, 1) 110KV Elumathur SS,are proposed total shutdown and the remaining 110KV Kodumudi SS,110KV New nadupalayam,110KV Sivagiri load fed from 110KV Erode SS through 110KV Elumathur SS. 2) The 110KV Line switch towards 230KV Pugalur SS side to be opened at 110KV Kodumudi SS.

SUB TO LOAD CONDITION AND CONCURRENCE FROM ERODE/SLDC

EACHANGADU 230 KV

110 kv MCL-1 & II Feeder BREAKER , CT'S one by one

SRPUDUR 230 KV

Monthly Mainteanace work, Annual Relay testing work





110 KV Panjetty Feeder, Breaker,110KV CTs Line Isolator


During the Period of Shut down the 110KV Panjetty SS availing Total Shut down.

PALLADAM 230 KV

230 KV PALLADAM-OTHAKALMANDAPAM # Breaker,CT's and Line side Isolator


During the LC period 1). Other 3 Nos 230 KV feeders will be in service2) Other end availing LC3)No other SS will be affected

Ensure 230 KV PPM - Sadayapalayam # tie

110 KV THENI - PERIYAR # III BREAKER WITH CT ONLY.


DURING THE LC PERIOD THE # WILL BE RADIAL FROM PERIYAR END


AMUTHAPURAM 230 KV

230KV Amuthapuram-N.M.Patty Feeder with Breakers,CTs and its isolators

Monthly Maintenance Work and M2 relay replacement

1) During the LC period there will be NO supply in this feeder. 2) Other end also avail LC on same day. 3) Concurrence obtained from SE/NCES/TIN.


KODIKURICHY 230 KV

1)110 KV Veerasigamani# II Breakers with C.T and line Isolator

110 KV Veerasigamani WF SS, PuliyangudiSS,Naranapuram SS, Viswanathaperi SS,110 KV Nallamanayaganpatti SS will be radially fed from 230 KV Nallamanayaganpatti SS.


LOWER METTUR 4

110KV BPH4 - BPH3# Breaker, CT'S, line isolators, entire line

During the LC Period,1)110KV BPH4-PKPM#,110KV BPH4-NSPM# both will be in service . Unit-I and II both will be in service/standby as per existing PWD demand.2)At BPH3 end,line isolator towards BPH4 should be kept opened & earthed.3)On the same day BPH3 also programmed to avail LC on 110KV BPH4-BPH3 #.

ALIYAR 230 KV

110KV ALR-UDT FEEDER NO-I CB,CT AND LINE SECTION BETWEEN ALR SS&POOLANKINARU SS

Inter loads fed from UDPT110

ANUPPANKULAM 230 KV

230KV Southern Bus entire. (from 1 - 89 B switch to south side end)

For providing of dropper jumper in 230KV Anuppankulam - Sterlite feeder Bus Bar to 230KV strung Bus, and connection from line switch to terminal tower . ( Augmentation of 100MVA to 160MVA Auto Transformer work)

During the LC period, Auto Transformer-II & III, HV-II & III, LV-II & III will be under hand tripped condition and Auto Transformer-I will be fed from 230KV Anuppankulam- Madurai and 230KV Anuppankulam - Kayathar feeder sources only. 230 KV Anuppankulam - Sterlite feeder will be no supply. 110KV Aruppukottai SS loads will be transferred to 110KV Kavanoor - Kamuthi feeder and 110KV APKM - PSQ # Radial fed from other end. If necessary 110 KV Rajapalayam - I feeder load transfer to 230 KV Nallamanaickenpatti SS. Hence No SS affected.

LC POSTPONED TO 28.7.17

ANUPPANKULAM 230 KV

230KV Anuppankulam - Sterlite feeder &230KV APKM-KYTR feeder entire

a)For releasing of loop jumper between 230kv APKM -STERLITE feeder(Loc No:-337 for Rph, Loc No:-338 for Yph & Bph) & 230KVAPKM-KYTR feeder(Loc No:- 15 for Rph,Loc No:-16 for Yph&Bph).

During the LC period 230KV APKM-STERLITE feeder & 230KV APKM-KYTR feeder Breaker on both ends will be under handtripped condition,for which concurrence obtained from EE/O/PSQ,EE/O/Kavanoor,EE/O/400KV/KYTR &EE/P&C2/TIN.

LC POSTPONED TO 28.7.17

SALEM AUTO 230 KV

230KV MTPS Feeder Breakers, CTs and Line Isolators and 110KV Singapuram Feeder-I Breakers, CT's and Line Isolators.

1. 230KV MTPS feeder LC will be availed at both ends. 2. 3 Nos. 230 KV feeders will be in service. 3. 110KV Singapuram feeder-I will be fed radially from other end. 4. Kitchipalayam 110KV SS will be availing total shutdown.5. There will be no interruption to any sub station or feeders.


KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS. PPN plant proposed LC for preventive maintenance work at their end.



110KV NEMMELI THIPPIYAKUDI-MADUKKUR FEEDER BREAKER, CT's AND LINE ISOLATOR.

FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/N T KUDI AND ANNUAL RELAY TESTING BY P&C WING THANJAVUR.

1) DURING THE LC PERIOD, 110/33-11KV MADUKKUR SS AND 110KV THIRUMAKKOTTAI SS RADIALLY FED FROM T(K)GTPS. 2) If necessary, 110KV Kovilkalappal-Madukkur-Pattukkottai tie will be created (by closing the 110KV Pattukkottai Line isolator no.2 at 110KV Madukkur SS). 3) 110/33-11KV MADUKKUR SS 33KV only shutdown availed. 4) No interruption to any Substation.


METTUR AUTO 230 KV

During the LC period Radially fed from 110KV singarapet SS Upto M/S RC Plant

Inter loads fed from SNPT110

CUDDALORE 230 KV

110 KV Cuddalore – Kulanchavadi # breaker with CT’s and line side isolator

110 KV Kullanchavadi SS will be availing total shutdown..The 110 KV Thoppukollai SS ,110 KV Koranapattu SS and 110 KV Kurunjipadi SS loads will be transferred to 110 KV Neyveli TS - I – Vadakuttu # .. Hence no interruption of supply

ARASUR 230 KV

During the L.C Period, The feeder will be radial from 230 KV Karamadai SS.

Inter loads already fed from Karamadai



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

649 Erode 59770 110 KV Possible Fri, 11/Aug/2017 10:00 Fri, 11/Aug/2017 17:00 1 Sub to wind generation Approved

650 Chennai 59996 110 KV For Monthly Maintenance Works Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

651 Madurai 58733 230 KV 1. For monthly maintenance works . POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 16:00 1 Approved

652 Madurai 59875 230 KV AUTO TRANSFORMER III Monthly maintenance work POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

653 Chennai 59882 110 KV 110KV Itchipudur Feeder breaker & CTs only For monthly maintenance work. Hence there will be no interruption of supply please. Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 14:00 1 Approved

654 Chennai 59917 110 KV 110 KV ITCHIPUTTUR FEEDER LINE LC 110 KV ITCHIPUTTUR TOTAL SHUTDOWN WORK Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 14:00 1 Approved

655 Chennai 59974 230 KV 230 KV KTR-CMRL feeder Jumper tightness at various location All other feeder will be in services Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 14:00 1 Approved


657 Madurai 59983 110 KV 110KV KGTPS - Thiruvarur Express feeder POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

658 Erode 60068 110 KV Monthly Maintenance Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved


660 Erode 60113 110 KV jumper tightness work Possible Fri, 11/Aug/2017 0:00 Fri, 11/Aug/2017 0:00 1 Approved


662 Erode 58795 110 KV 110 KV entire bus /Jumpers and Isolators Monthly maintenance Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

663 Erode 58841 110 KV 110 KV Krishnapuram Feeder Breaker ,CTs For Monthly Maintenance work 110 KV Krishnapuram Feeder radial from 230KV SS Perambalur end Possible Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

664 Madurai 58864 230 KV Auto Transformer II POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

665 Madurai 58865 110 KV 110Kv Narimanam - Nagapattinam Feeder POSSIBLE Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

666 Erode 110 KV 110KV Zuzuvadi feeder breaker Monthly Maintenance work Possible Fri, 11/Aug/2017 0.375 Fri, 11/Aug/2017 0.58333 1 Zuzuvadi TSD Approved

667 Madurai 59547 110 KV 110KV KGTPS- Thiruvarur feeder entire Line inspection and rectification work During the above LC period there is no supply interruption to any SS. Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

668 Madurai 58867 110 KV 110KV Thiruvarur - KGTPS feeder During the LC period no interruption of supply to any other SS. Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

669 Erode 110 KV Barrage PH 3 110 kV BUS Fri, 11/Aug/2017 9:00 Fri, 11/Aug/2017 17:00 1 Approved

670 Madurai 59292 230 KV 230KV CKNI-Theni # Entire For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder Sat, 12/Aug/2017 0:00 Sat, 12/Aug/2017 0:00 1 Approved

671 Madurai 59362 230 KV then I 230 KV Sat, 12/Aug/2017 9:00 Sat, 12/Aug/2017 17:00 1 Approved

672 Chennai 59025 230 KV 230KV Kalivanthapattu - Siruseri feeder 230KJumper checking work. 230KV Siruseri SS loads fed from 230KV Bhavani I & II feeder. To be discuss Sat, 12/Aug/2017 5:00 Sat, 12/Aug/2017 12:00 1 Postponed

673 Chennai 59023 230 KV 100 MVA Auto Transformer - 2 Routine Maintenance Works. Possible Sat, 12/Aug/2017 9:00 Sat, 12/Aug/2017 13:00 1 Approved



676 Madurai 59298 230 KV During LC Period There will be no supply in the entire feeder POSSIBLE Sat, 12/Aug/2017 8:00 Sat, 12/Aug/2017 17:00 1 Approved SGC

677 Chennai 59532 110 KV 110KV COOKS ROAD Feeder Routine Maintenance work Possible Sat, 12/Aug/2017 9:00 Sat, 12/Aug/2017 14:00 1 Approved

678 Chennai 59907 230 KV i.For mtce workii.For Line mtce work Possible Sat, 12/Aug/2017 9:00 Sat, 12/Aug/2017 17:00 1 Approved

679 Chennai 59975 230 KV 230 KV KTR-CMRL feeder Jumper tightness at various location All other feeder will be in services Possible Sat, 12/Aug/2017 8:00 Sat, 12/Aug/2017 17:00 1 Approved

680 Erode 400 KV 110 KV Palavadi - Vellichandai # For commissioning & charging activity Possible Sat, 12/Aug/2017 8:00 Sat, 12/Aug/2017 17:00 1 Approved SGC

681 Chennai 59032 230 KV To be discuss Sun, 13/Aug/2017 7:00 Sun, 13/Aug/2017 18:00 1 Approved

682 Chennai 59222 230 KV 33 KV Koyambedu Market Feeder. For Quarterly maintenance work. For Quarterly maintenance work. Sun, 13/Aug/2017 10:00 Sun, 13/Aug/2017 1:00 1 Approval by CBD

683 Erode 58609 KUNDAH PH2 Possible Sun, 13/Aug/2017 9:00 Sun, 13/Aug/2017 17:00 1 Approved

684 Chennai 58934 110 KV 110KV Vyasarpadi Feeder Half Yearly Maintenance Work Possible Sun, 13/Aug/2017 9:00 Sun, 13/Aug/2017 17:00 1 Approved

PONNAPURAM 230 KV

110 KV Ingur II # Breaker, CTs & line upto Kulathupalayam SS


Subject to the load condition, 1.110KV Ingur-II # will be kept radial from other end up to 110KV Kulathupalayam SS ,2.110KV PNPM SS GC-I will be transferred to 230KV PNPM SS / 110KV PNPM # Hence No SS will be affected.

THIRUVALAM 230 KV

i)On 110KV Capacitor Bank-I and 110KV Capacitor Bank -II Breaker and CTâ€™sone by one

During the period of LC i) Auto-Tr-I ,HV-I,LV, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS Loads.i) The 110KV Capacitor Bank â€“I and 110KV Capacitor Bank-II one by one will be in â€˜OFFâ€™ Condition iii) The 230KV Link-II, 230KV Chittoor interstate feeders,230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

Approval by SE/O

TRICHY 230 KV

100MVA Auto Transformer I, LV I BR, HV & LV LAS, LV CTs and Isolators.

During the LC period a) other 2 nos. 100MVA Auto Transformer will be in service. b) There will be no interruption of supply to any of the SS and feeders. C) Necessary concurrence obtained from SE/O/Trichy.





MOSUR 230 KVMOSUR 230 KVKORATTUR 230 KVKAYATHAR 230 KV

230 KV kayathar - Abishegapatty Feeder, Breake with CT and entire line

a) For Monthly Maintenance workb) For tower to Tower inspection work

During the LC period, other end also avails LC and there will be no supply in the entire line. Hence no ss affected.

DUE TO WIND GEN: APPD IN 133 OCC VIDE ITEM NO.98 ON 09.08.2017

THIRUVARUR 230 KV

Stringing of 230KV DC line between Loc. No. 90 & 91 (crossing span) in 230Kv LILO of Thiruvarur - Kadalangudy 230KV SC line at kumbakonam SS.

During the LC period there will be no interruption of supply to any other Substation.


UDUMALPET 230 KV

110KVRanganathapuram # Breaker & Line sec bet Udt&Melkaraipatty

SEC BETWEEN RANGANATHAPURAM AND MELKARAI PATTY WILL BE Fed FROM 230KVSS RANGANATHAPURAM

Sub to inter loads fed from RN Puram

ARASUR 230 KV

110 KV Arasur-Karamadai-II # breaker,CT'S ,Control and relay panels

For Annual relay testing works by P & C wing/Thudialur.

During the L.C period,110 KV Arasur-Karamadai -II will be radial from 230 KV Karamadai SS .

Inter loads already fed from Karamadai

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Krishnapuram Feeder(Section between Deviakurichy ss – Dhanalashmi Srinivasan Sugar Pvt Ltd)

1) Deviakurichy 230KV SS Krishnapuram feeder monthely maintenances work Breaker,CT ‘s.2) Perambalur 230KV SS radial fed from upto Dhanalashmi Srinivasan Sugar Pvt Ltd End. 3) There will be no interruption of supply any other SS.

Sub to inter loads fed from Perambalur

KAYATHAR 230 KV

110KV KAYATHAR-ARUMUGANERI FEEDER SEC B/W PALYAMKOTTAI&SRIMOOLAKARAI

LINE INSPECTION & RECTIFICATION WORK

DURING THE LC PERIOD,1.PALYAMKOTTAI SS WILL BE RADIALLY FED FROM KAYATHAR.2.SRIMOOLAKARAI SS WILL BE RADIALLY FED FROM ARUMUGANERI HENCE NO SS AFFECTED.


SINGAPURAM 230 KV

1.Monthly maintenance only one Auto Transformer is available 2.Intermediate 110 KV SS loads will be fed radially from the respective other ends 3.230KV Deviyakurichi and K.R.Thoppur feeders will be in service 4.110KV Kitchipalayam SS is availing TSD on 11.08.2017

Sub to inter loads fed from other end

DEVIAKURICHI 230 KV

Sub to inter loads fed from Perambalur

THIRUVARUR 230 KV

HV II, LV II and CTs maintenance work and Annual Relay Test by GRT wing

During the Auto transformer-II LC period, the Auto Transformer - I & III will be in service and Load will be shared by Auto Transformer I & III. Hence there will be no interruption of supply. Auto Load 40 MW for each.


THIRUVARUR 230 KV

Line premansoon inspection and rectification work.

During the LC period the 110Kv Narimanam - CPCL - Nagapattinam feeder will be in service. Hence there will be no interruption of supply to any other substation.

HOSUR 230 kV KADALANGUDI 230 KV


THIRUVARUR 230 KV



Common Bus LC for relay replacement work and PT Commissioning work




230 KV THENI CHEKKANURANI # BREAKER CT AND LINE ISOLATOR.

FOR MONTHLY AND LINE MAINTENANCE WORKS & ATTENDING PREMONSOON REMARKS.

DURING THE LC PERIOD TOTAL SHUT DOWN TO BE PROPOSED IN THE FOLLOWING 110 KV SUB STATIONS FOR LOAD RELIEF OF 62 MW (110/22 KV CUMBUM,AYYAMPALAM, BATLAGUNDU,V.PARAI,AND KADAMALAI KUNDU SS)

SUB TO LOAD CONDIITON

KADAPPERI 230 KVTONDIARPET 230 KV

During the period of shutdown,Except 100 MVA Auto Transformer - 2 will not be in service and all other feeders and equipments will be in service.

TONDIARPET 230 KV

110KV Northern Bus Section and 50 MVA Power Transformer - 2 One by one.

Routine Maintenance Works and 110KV Northern Bus Section Wedge clamp to be Provided.

During the period of shutdown,Except 50 MVA Power Transformer - 2 , 110 KV ETPS Feeder & 110KV Manali Feeder will not be in service and all other feeders and equipments will be in service.

TONDIARPET 230 KV

110KV Northern Bus Section and 50 MVA Power Transformer - 2 One by one.


During the period of shutdown,Except 50 MVA Power Transformer - 2 , 110 KV ETPS Feeder & 110KV Manali Feeder will not be in service and all other feeders and equipments will be in service.


230KV CKNI-Theni # Entire 230KV CKNI-Meelavittan # Ent 230KV CKNI-Indbharath # Ent 230KV CKNI-TTPS # Ent 230KV CKNI-KMLM # Ent

For Line Stringing work for the proposed 230KV KMLM-Kayathar feeder

SUB. TO TTPS GEN. COMMNG. PROGRAM FOR THE ABOVE NEW LINE OF KNMGLM=KYR

KILPAUK 230 KV

During the period of shutdown 110KV Cooks Road SS will fed by BBGTPS. Hence no interruption of supply.

S.P.KOIL 230 KV

1. 100 MVA Auto Tr.I2. 230 KV S.P.koil -Kalpakkam I Feeder

1. 100 MVA Auto Tr.II & IV Will be in service.2.During period of shutdown, 230 KV S.P.Koil- kalpakkam -II ,Acharapakkam, Echur feeders will be in service

KORATTUR 230 KVPALAVADI 400 KV



TONDIARPET 230 KV

50 MVA Power Transformer - 2 and 110KV Northern Bus Section One by one.


During the period of shutdown,Except 50 MVA Power Transformer - 2 ,100 MVA Auto Transformer-2, 110 KV ETPS Feeder & 110KV Manali Feeder will not be in service and all other feeders and equipments will be in service.

KOYAMBEDU 230 KV

Approval by CBD

GENERATING STATIONS




Sub to other units availability


1. 110KV Vyasarpadi Feeder only will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto-I,II & III will be in service.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

685 Chennai 59067 230 KV NOKIA 230 KV Possible Sun, 13/Aug/2017 9:00 Sun, 13/Aug/2017 17:00 1 Approved

686 Chennai 59840 230 KV Athipet Lines 230 KV Manali â€“ Mylapore All other feeder in service. Possible Sun, 13/Aug/2017 6:00 Sun, 13/Aug/2017 9:00 1 Approved

687 Erode 57697 110 KV 110KV K.R.Thoppur-I feeder Breakers and CT's Monthly maintenance work. Possible Mon, 14/Aug/2017 9:00 Mon, 14/Aug/2017 17:00 1 Approved

688 Erode 59003 110 KV MOYAR 110 KV Moyar - Periyakodiveri Feeder Annual Relay test Other feeders will be in service. Possible Mon, 14/Aug/2017 9:00 Mon, 14/Aug/2017 17:00 1 Approved

689 Madurai 59162 110 KV For Monthly Maintenance work POSSIBLE Mon, 14/Aug/2017 10:00 Mon, 14/Aug/2017 17:00 1 Approved

690 Erode 59334 230 KV Possible Mon, 14/Aug/2017 9:00 Mon, 14/Aug/2017 17:00 1 Sub to Auto load Approved

691 Chennai 58696 110 KV 110KV SPR-PORUR-I feeder Quarterly Maintenance Works Possible Mon, 14/Aug/2017 9:00 Mon, 14/Aug/2017 17:00 1 Approved

692 Chennai 59746 230 KV 230KV Manali-II feeder Maintenance work 230Kv manali-II feeder will not be in service Possible Mon, 14/Aug/2017 10:00 Mon, 14/Aug/2017 17:00 1 Approved

693 Chennai 59978 230 KV 230 KV KTR-Manali feeder Jumper tightness at various location All other feeder will be in services Possible Mon, 14/Aug/2017 9:00 Mon, 14/Aug/2017 17:00 1 Approved

694 Erode 58575 110 KV METTUR DPH 110 KV DPH-AUTO SS FEEDER 2 THE OTHER END WILL BE IN SERVICE. Possible Tue, 15/Aug/2017 9:00 Tue, 15/Aug/2017 9:00 1 Sub to #1 load Approved

695 Chennai 59130 230 KV Quarterlyn Maintenance Possible Tue, 15/Aug/2017 10:00 Tue, 15/Aug/2017 17:00 1 Approved

696 Chennai 59297 110 KV concurance to be obtained from M/s.SRF Possible Tue, 15/Aug/2017 10:00 Tue, 15/Aug/2017 17:00 1 Approved

697 Chennai 59300 110 KV concurance may be obtained from M/s.SANMAR Possible Tue, 15/Aug/2017 10:00 Tue, 15/Aug/2017 17:00 1 Approved

698 Chennai 58698 230 KV 230KV SPR-Oragadam feeder Quarterly maintenance works Possible Tue, 15/Aug/2017 9:00 Tue, 15/Aug/2017 17:00 1 Approved

699 Chennai 59908 230 KV 1. Monthly mtce Work2. Line mtce work M.M.Nagar II loads will be transformed to M.M.Nagar-I Feeder Possible Tue, 15/Aug/2017 9:00 Tue, 15/Aug/2017 17:00 1 Approved

700 Madurai 59589 110 KV Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

701 Erode 58570 110 KV Postponed Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 15:00 1

702 Erode 58573 110 KV METTUR DPH 110 KV DPH-BARRAGE 1 FEEDER ENTIRE Postponed Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 15:00 1

703 Chennai 58601 400 KV monthly maintenance work Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved


705 Erode 58542 110 KV For Monthly Maintenance works Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 16:00 1 Approved SGC

706 Madurai 58560 230 KV Monthly Maintenance Work POSSIBLE Wed, 16/Aug/2017 10:00 Wed, 16/Aug/2017 17:00 1 Approved

707 Erode 58899 110 KV For monthly maintenance works. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 14:00 1 Approved SGC

708 Madurai 58922 110 KV 110 KV Kayathar GC, breaker with CT only For Monthly Maintenance work POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

709 Chennai 58935 230 KV Auto Transformer-I Monthly Maintenance Work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

710 Erode 58642 230 KV MTPS SINGARAPET 230KV FEEDER MONTHLY MAINTENANCE PROGRAMED LC Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Sub to load Approved711 Erode 58648 METTUR TPH FOR MONTHLY MAINTENANCE Possible Wed, 16/Aug/2017 7:00 Wed, 16/Aug/2017 17:00 1 Sub to PWD demand

712 Erode 58660 110 KV 110KV BUS COUPLER BREAKER AND CT ONLY Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 12:00 1 Approved


714 Madurai 59124 230 KV POSSIBLE Wed, 16/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 2 Approved SGC

715 Erode 59142 110 KV Postponed Wed, 16/Aug/2017 8:00 Wed, 16/Aug/2017 18:00 1


717 Chennai 58996 230 KV CMRL 230 KV Auto Transformer II Monthly maintenance work Possible Wed, 16/Aug/2017 10:00 Wed, 16/Aug/2017 17:00 1 Approved

718 Madurai 59037 110 KV 110KV Bus Coupler Breaker (104-52) only Monthly Maintenance work POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

719 Madurai 59060 110 KV 110KV Link feeder No Generation in KDR PH-2 POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

720 Madurai 59090 KDR PH-1 Machine No Generation in KDR PH-1 POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

721 Madurai 59113 230 KV on 230KV VLDR-A.Koil #. Disc Replacement work. During the L.C Period all other 230Kv #'s Tied with grid. POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

230 kv Bus, 230/ 110 KV , 100 MVA Auto transformer ,110 KV Nokia feeder & 16 MVA ,110/11 KV Power transformer

For Monthly maintenance work &Total shutdown

1.1. During the LC Perioed ,230 KV SPR # Line switch and 230 kv SVC # Line switch will be kept opened at the Nokia ss end.2. 110 kv Loads of EHT Consumer M/S Nokia india LTD , Will be transferred to 110 kv spr-mosurII feeder being fed by 400 kv sv chatram ss3. concurrence obtained from EHT consumer M/S Nokia india LTD and HT Consumer M/s Motherson Automotive LTD.

Jumper tightness & tower to tower inspection.

SALEM AUTO 230 KV

110KV K.R.Thoppur-I feeder will be radially fed from other end. Railway traction SS will be fed from 110KV K.R.Thoppur-II feeder. There will be no interruption to any SS or feeder.

Traction will be trf to #2

Inter loads fed from Gobi

EACHANGADU 230 KV

110KV ICL-I & ICL-II feeder Breaker and CT's only One by one.

During the shutdown period, there will be No interruption to the EHT Consumer . Concurence also obtained from the concerned.

PALLADAM 230 KV

AUTO TRANSFORMER II and its HV,LV breaker,CT's and LAS


During LC period 1) Other 3 Nos Auto transformers will be in service2) Wind import available in 110 KV Elavanthy feeder3) If necessary 110 KV Mudalipalayam SS will be fed from 230 KV Ingur SS


During the period of shutdown 110KV SRMC ss loads and 110KV Ramapuram ss loads will be transferred to 230KV Koyambedu SS via 110KV KK Nagar ss


Alamathy 400 KV

Subject to commissioning of 230 kv Manali - Basinbridge feeder

KORATTUR 230 KV

1.MONTHLY MAINTENANCE2.ANNUAL RELAY TEST

ORAGADAM 230 KV

230KV Oragadam - Sriperumbudur feeder breaker, CT's & all Isolators

i) During the LC period there will be NO supply on the entire feeder, ii) All other feeders are in service.


110 KV SRF Feeder, Breaker,110KV CTs Line Isolator


Subject to SRF concurrence


110 KV SANMAR Feeder, Breaker,110KV CTs Line Isolator


Subject to SANMAR concurrence


During the period of shutdown all other 230KV feeders will be continued in service

S.P.KOIL 230 KV

1.230/110 KV, MVA Auto Tr.III 2.110 KV S.P.Koil - M.M.Nagar -II Feeder

THIRUVARUR 230 KV

110KV T(K)GTPS - THIRUVARUR FEEDER (VIA: 110KV ULLIKKOTTAI SS, 110KV OKKANADU KEELAIYUR SS & 110KV MANNARGUDI SS), LINE PORTION BETWEEN T(K)GTPS TO 110KV ULLIKKOTTAI SS.

FOR PREMONSOON INSPECTION BY AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV ULLIKKOTTAI SS, 110KV OKKANADU KEELAIYUR SS AND 110KV MANNARGUDI SS RADIALLY FED FROM 230KV THIRUVARUR SS. 2) NO INTERRUPTION TO ANY SUBSTATIONS.


LOWER METTUR 1

110KV BPH1-MDPH Feeder - SF6 Breaker, CT, Line side Isolator and Earth Switch

Monthly maintenance work in 110KV BPH1-MDPH Feeder - SF6 Breaker, CT, Line side Isolator and Earth Switch

(a) During the above L.C period Unit 1 will be in Non-standby and Unit-2 will be in standby condition.(b) The other end DPH applied L.C on that day on 16.08.2017.(c) 110 KV BPH â€“ 1 to BPH-2 feeder will be in service.

ICT 3 LC recommended at Salem 400 KV SS



THE OTHER END WILL ALSO PROPOSE TO AVAIL LC ON THE SAME DAY




200MVA, 400/110KV Auto Transformer - 3 with Tie -3

During the above shutdown period the 200MVA, 400/110KV Auto Transformer - 4 will cater the load of 200MVA, 400/110KV Auto Transformer - 3 with out interupption

OCC Approved item No.140/133

KAYATHAR 230 KV

110KV KAYATHAR -K.G.PATTI FEEDER SEC B/W KALUGUMALAI&KALINGAPATTI.


DURING THE LC PERIOD,1.KALUGUMALAI SS WILL BE RADIALLY FED FROM KAYATHAR.2.KALINGAPATTI WILL BE RADIALLY FED FROM K.G.PATTI. HENCE NO SS AFFECTED


THUDIALUR 230 KV

1.110 KV Coimbatore I feeder Br & CTs2. 110 KV P.N.Palayam feeder Br & CTs

1. 110 KV Koundampallayam SS Under Total shutdown2. 110 KV P N Palayam SS under Total shutdown & Madhampalayam SS will be fed from MTP SS3. LC will be taken one after other

1. Sub to kavundampalayam TSD 2. PN Palayam TSD, Maddampalayam trf to Karamadai

VEERANAM 230 KV

Power transformer-II HV.Breaker-II LV.Breaker-II & Ramco,Windfarm,Enercon

During the lc period there will be no supply in the entire Power transformer-II HV.Breaker-II LV.Breaker-II & 33kv feeder concurrence obtained from SE/NCES/TIN.



110 KV OKM-Irugur Feeder (Breaker, CT's & Line Switch)

During the LC period,1)110 KV Podanur ss under Total Shut down.2)110 KV Irugur ss loads will be transferred to 230 KV CBE SS.3)Hence no ss will be affected.

pothanur TSD, Irugur Trf to CBE

KAYATHAR 230 KV

During the LC period, shutdown will be availed during that date and backfeeding will be availed through Kayathar Maniyachi feeder. Hence no ss affected


1. Auto Transformer I only will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto-II & III will be in service.

GENERATING STATIONS




ANTHIYUR 230 KV


DURING THE LC PERIOD 110KV FEEDERS METTUR,BARRAGE PH-III AND ANTHIYUR FEEDER WILL BE IN 110KV BUS-I AND 110KV FEEDERS THALAVAIPETTAI & GOBI FEEDER WILL BE IN 110KV BUS-II

Sub to equal division of loads


On 110KV TTN-ARNI-II feeder (110KV Manjalneerkayal SS and 110KV ARNI SS)

For replace the flash mark disc insulators at loc no: 90 (Y-Ph)

No ss will be affected. During the above LC period 110KV Manjalneer kayal SS will be radially fed from 230KV Auto SS.


PUGALUR 230 KV

230 KV Pugalur - Paramathy I feeder Breaker, CT & line switch and line entire only

Replacement of existing 230KV C&R Panel by new one and Monthly Mtce work. In coordination with P&C wing,Erode.

During the LC period, there will be no supply in 230 KV Pugalur - Paramathy I feeder. Hence There is no interruption to any SS,LC approved in 133 th OCC meeting

SUB TO LOAD CONDITION: APPD IN 133 OCC VIDE ITEM NO.111(2 DAYS).AND TAQA TO BE IN SERVICE

LOWER METTUR 2

110kV Common Bus, its associated equipments, structures, all 110KV Feeders etc,at LMBPH 2/NPT.

(a) For carryout commissioning of 110KV Bus PTs. (Set 1) (b) For carryout annual relay tests in 110KV feeders by AEE/P&C/ Mettur Dam at LMBPH 2/NPT.

During the LC period,(a) Units 1&2 will be in shut down condition .(b) 110KV KRT # will be radialy charged from KRT SS to Poolampatty ss end. (c) 110KV LMBPH 2 to LMBPH 1 # hand tripped at LMBPH 1 end.(d) 110KV LMBPH 2 to LMBPH 3 # hand tripped at LMBPH 3 end.




On 110KV Sipcot-TTN-I feeder breaker with CTs only.

During the L.C period, 110 KV Sipcot SS will shut down condition &110 KV Vagaikulam SS and 110kv kombukaranatham SS will be radially fed from 230KV Auto SS/TTN end and no other SS will be affected please


1.No load transfer required 2.Auto transformer - I will be in service3.shutdown approval by SE/O/North /ChennaiDuring the LC period there will be no supply in 110KV Bus Coupler Breaker (104-52) only. Hence no substation affected.

KODAIYAR PH2

GRT - Annual relay testing, Monthly Maintenance of breaker & CT


GENERATING STATIONS

KODAIYAR PH 1

1)Gen.Tr. Mtce (2)SF6 beraker Mtce (3)110KV LAS Mtce (4)110KV CT & PT Mtce (5) 110KV Line Switch Mtce (6) Runner Inspection


KARAIKUDI 230 KV




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

722 Madurai 59122 230 KV Monthly maintenance work, POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1

723 Chennai 59171 230 KV 230KV Tie Breaker & CT's Quarterly Maintenance Possible Wed, 16/Aug/2017 10:00 Wed, 16/Aug/2017 17:00 1 Approved

724 Erode 59180 230 KV 230KV MTPS 1 - Singarapet SS feeder entire. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Sub to load Approved

725 Erode 59186 230 KV 230KV MTPS 2 - Gobi feeder entire. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

726 Erode 59195 PYKARA UNIT 3 For monthly maintenance work NIL Possible Wed, 16/Aug/2017 8:00 Wed, 16/Aug/2017 17:00 1 Standby Unit Approved

727 Chennai 59206 110 KV 110kv Perungudi II Feeder Maintenance work Load transfer to 110kv perungudi-I Feeder Possible Wed, 16/Aug/2017 10:00 Wed, 16/Aug/2017 17:00 1 Approved

728 Erode 59404 230 KV MTPS Singarapet 230KV Feeder Programmed LC repeat Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 P-id 58642 Repeat

729 Madurai 59240 230 KV 100 MVA AUTO TR II HV II & LVI II Br,CT During the LC period Auto Tr I & III will be in service. POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 15:00 1 Approved

730 Erode 59247 230 KV GOBI 230 KV For monthly maintenance work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

731 Chennai 59266 230 KV Monthly maintenance work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

732 Madurai 59289 230 KV 230KV Bus section II POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 16:00 1 Approved

733 Chennai 59302 230 KV concurance may be obtained from M/s. A R S ( CPP ) Possible Wed, 16/Aug/2017 10:00 Wed, 16/Aug/2017 17:00 1 Approved

734 Madurai 59307 110 KV 110KV Pasumalai - Sembatti# Vadipatti spurline POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

735 Chennai 58699 400 KV 400KV HV-I Breaker(52) Quarterly maintenance work Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

736 Chennai 58721 230 KV 100MVA AUTO TR-I Monthly Maintenance 110 KV S.P.Koil - # I & II - Tied condition. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 14:00 1 Approved

737 Erode 59446 110 KV 110KV KR Thuppur – Vembadithalam feeder Tension point jumpers checking work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Vembadithalam TSD Approved

738 Madurai 59478 230 KV 230KV Alkl-Valudur # breaker with CT &line entire other end also proposed L.C. POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 16:00 1 Approved


740 Chennai 59525 400 KV 315MVA 400/230KV ICT-II Maintenance Work Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved


742 Chennai 59721 230 KV 230 KV bus coupler breaker with CT 230 KV Bus 'A' and 230 KV Bus 'B' will be independent. Possible Wed, 16/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 3 Approved SGC

743 Erode 59576 230 KV For monthly maintenance works. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved


745 Madurai 59595 230 KV then I 230 KV For monthly mtce work POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 13:00 1 Approved

746 Erode 59631 230 KV KUNDAH PH3 230KV PH2 TO ARASUR FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Wed, 16/Aug/2017 8:00 Wed, 16/Aug/2017 17:00 1 Sub to load Approved

747 Chennai 59825 230 KV 230 Kv bus coupler Breaker with CT Possible Wed, 16/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 3 Approved SGC

748 Chennai 59687 230 KV 230KV Villupuram – Thiruvannamalai # Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

749 Erode 59691 230 KV MTPSII 230KV GOBI FEEDER Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

750 Erode 59720 110 KV 110KV Arasur-Karuvalur 1 # breaker and CTs. For monthly maintenance works. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 12:00 1 Approved

751 Erode 59771 110 KV For monthly maintenance works Possible Wed, 16/Aug/2017 10:00 Wed, 16/Aug/2017 17:00 1 Approved


753 Erode 59818 400 KV 400KV MTPS II - 2 Feeder No interruption of supply, Load fed through 400KV MTPS II - 1 Feeder Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved


PUGALUR 230 KV

230 KV Pugalur - Pudansanthai feeder Breaker, CT, Line switch

During the LC period, there will be no supply in 230 KV Pugalur - Pudansanthai feeder since other end also availing L.C on the same period.

SUB TO LOAD CONDITION: CONCURRENCE FROM ERODE/SLDC AND TAQA TO BE IN SERVICE

Approved Subject to M/s.TAQA availability

ORAGADAM 230 KV

i) During the LC period there will be NO interruptionto any breaker, ii) 'A' Bus 230KV S.P.Koil # and S.V.Chatram #, iii)'B' Bus230KV Auto Tr. I, II & III

METTUR AUTO 230 KV

Jumper cone Tightness checking at Railway crossing Towers LOC.TNO: 26 & 27 Mallappanur, LOC.TNO: 128 & 129 Sekkarapatti Thoppur at 230 KV MTPS 1 - Singarapet feeder.

MTPS 1 Programmed LC Ffor Maintenance work at 230 KV MTPS 1 - Singarapet feeder on 16.08.2017.

METTUR AUTO 230 KV

Jumper cone Tightness checking at LOC TNO: 37 at 230 KV MTPS 2 - Gobi feeder.

MTPS 2 Programmed LC for Maintenon work at 230 KV MTPS 2 - Gobi feeder on 16.08.2017.

Sub to 230 KV Anthiyur - MTPS 1 # load

GENERATING STATIONS

THARAMANI 230 KV



SRPUDUR 230 KV

Monthly Mainteanace work, Annual Relay testing work


230 KV GOBI - MTPS II Feede Breaker, CTâ€™s and entire line

1.230 KV Arasur, 230 KV Pallakapalayam ,230 KV Anthiyur feeders are in service,it may cater the load.2.Other end may also avail lC


THIRUVANNAMALAI 230 KV

230 KV Tiruvannamalai-Villupuram#, Breaker, CT's and Line Isolator

During the period of L/C time,1. 230 KV T.V.Malai-Villupuram # will be OFF condition at both ends,2. Other 2 Nos 230 KV T.V.Malai-Neyveli & singarapet # will be in service. Hence there is no interruption of supply please.

SEMBATTY 230 KV

Replacement of exg. Myvadi bus switch and HV III switch by new 2000A switch

During the LC period, 1. Auto II and III will be in off condition by opening HV and LV breakers. 2. 230KV Myvadi and CKNI will be in off condition 3. 230KV Theni and Auto I will be in service. 4. 110KV Pasumalai, AKL I, II, RNPM I and II will be in tie condition, if Auto over load at SBT end the above feeders will be kept radial from other end. 5. Shriram # will be in tie condition 6. 110KV Udumalpet , Theni I and II will be kept in tie condition. (If power will import) otherwise feeders will be kept radial from other end. 7. 110KV RNPM III # will be radial from other end by closing series switch at Vedasandur towards SBT and Alundur will be radial from other end. 8. 110KV DGL and Sembatti power SS will be radial from Sembatti SS. 9. 110KV RRPM, Ayyalur, Minukkampatti, Vadamadurai, Kosavapatti, Palani SS, Vedasandur, Vadipatti and Solavandhan are availing total shutdown. (Total load relief : 85.38 MW)

SUB TO LOAD CONDIITON


230 KV A R S Feeder, Breaker,230KV CTs Line Isolator


Subject to concurrence from ARS



During the LC period Vadipatti under total shutdown. Hence no interruption



During the period of shutdown 400KV TIE Breaker(352) will be continued in service


VEERAPURAM 230 KVSALEM AUTO 230 KV

1. 110KV KR Thuppur – Vembadithalam feeder breakers kept hand tripped at both ends.2. Bus and line switches kept opened at both ends. 3. KR Thoppur 400KV SS is availing breaker and line switch LC. 4. Vembadithalam 110KV SS is availing Total Shutdown.5. There will be no interruption to any SS.

ALAGARKOIL 230 KV

for monthly maintenance work & tree clearence work


UDAYATHUR 230 KV

230/33kv Power TR 2 HV & LV Breaker& 33KV SRSPL,SRL ,SAPTAGIRI & REDPONIX FDRS

Monthly Maintenance Work& 33KV bus 2 MAINTENANCE WORK

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO 33KV SRSPL,SRL ,SAPTAGIRI & REDPONIX FDRS IF WIND GEN . AVAILABLE ON THE DAY POWER TR.2 LOADS WILL BE FED FROM OTHER POWER TRS & POWER TR.2 ONLY TAKEN FOR MTCE WORK


Thiruvalam 400 KV

A)315MVA,400/230KV ICT-II will be in off condition.B)315MVA 400/230KV ICT-I will be in service.C)All other feeders(400KV & 230KV) will be in serviceD)If necessary, to restrict load, 230KV Singarapet feeder will be kept radial.


ALUNDUR 230 KV

110KV Alundur - Sempatty feeder Breaker's,CT'S and Line section between 230 KV SS Alundur up to vaiyamppatty 110 KV SS.

a) Monthly maintenance work. b)premonsoon inspection and tree cutting work. c)Relay testing work.

During the LC period, a) 110KV Alundur - Sempatty feeder radially fed from 230 KV SS sempatty SS up to vaiyampatty 110 KV SS. b) 110 KV vaiyampatty SS availing total shutdown. c)All other 110 KV feeder's will be in service. d)There will be no interruption of supply to any other feeder's and ss.

SUB TO LOAD CONDITION AND CONCURRENCE FROM RAILWAY TRACTION

CUDDALORE 230 KV

KfW Augmentation work Replace Existing Bus coupler 230 KV Isolator by new 2000 A Isolator


230KV Pugalur feeder CB, CTs, CVTs, Wave Traps and 230KV isolators.

During LC period230KV Unjanai and Deviakurichy feeders will be kept tied with grid.230KV pugalur SS also availing LC in the same feeder at opposite end.No supply interruption.

Sub to 230 KV DKY-TAQA # tie


110 KV NEMMELI THIPPIYAKUDI-THANJAVUR FEEDER BREAKER,CT's & LINE ISOLATOR.

FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/NEMMELI THIPPIYAKUDI.

1)DURING THE LC PERIOD,110KV ORATHANADU SS (33KV only availed shutdown) and 110KV THIRUKKANURPATTY SS, 110KV ECHANKOTTAI SS AND 110KV ORATHANADU SS RADIALLY FED FROM 230KV THANJAVUR SS. 2) ALL OTHER FEEDERS ARE TIED CONDITION AND NO INTERRUPTION TO ANY SS.


230 KV Auto Transformer III , HV & LV Breaker with CT only.

during the LC period the station load will be managed by other two Auto Transformers


CUDDALORE 230 KV

KfW Augmentation work Replace Existing Bus coupler 230 KV Isolator by new 2000 A Isolator

During the period of LC at 230 KV Bus A 1)230 KV Bus coupler hand trip condition 2)All the loads will be feed from 230 KV Bus BDuring the period of LC at 230 KV Bus B1)230 KV Bus coupler hand trip condition 2)All the loads will be feed from 230 KV Bus Ahence no interuption of supply

VILLUPURAM 230 KV


1. Both ends will be H/T and kept opened 2. Other 230KV feeder will be in service. 3. Hence No interruption of supply to any SS.

MONTHLY MAINTENANCE WORKS TO BE CARRY OUT.

UNIT IN SERVICE. ALL 400KV FEEDERS ARE IN SERVICE. 230KV FEEDERS METTUR AUTO SS, MTPS AND STANDBY TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.


ARASUR 230 KV

During the L.C Period, The feeder will be radial from 230 KV Karuvalur SS.

Inter loads fed from Karuvalur

PONNAPURAM 230 KV

110KV Pethapampatty # breaker & CTs & line upto Kottamangalam SS

Subject to the wind generation, 1.110KV Pethappampatty # will be kept radial from 230KV Udt SS / 110KV Pnpm # ,2.Hence No SS will be affected.

Sub to Trf of Kottamangalm to UDPT230

ANUPPANKULAM 230 KV

100 MVA AUTO TR. III, HV-III and LV-III Breaker and 110 KV southern side bus section switch no-4 -29 B to Southern side end.

For attending LV -III isolator switch no: 19-29 A alignment work and Monthly Maintanance work.

During the LC period the Auto Tr. I & II will cater the load of Auto Tr. III .110 KV Anpm-Tkpty -II feeder will be radial fed from other end. Hence No SS affected.


PALAVADI 400 KV



Kurukathi 230 KV

230 KV Buscoupler Breaker and CT's with 230 KV Main Bus

To carry out 230 KV Bus stability test for 230 KV future feeder CT's at 230 KV Kurukathi SS by AEE/P&C/Erode

During LC period 1)230 KV Bus 'A' will be in service2). 230 KV Bus coupler will be hand tripped and Isolators 201 89A, 201 89B will be opened3). No other SS affected

Other 230 KV Bus will be inservice



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

755 Madurai 59858 230 KV 230KV Valuthur - Alagarkovil feeder entire POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

756 Chennai 59884 230 KV 230KV Athipattu Feeder Breaker & CTs only For monthly maintenance work. Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 14:00 1 Approved

757 Chennai 59919 230 KV 230 KV ATHIPATTU FEEDER LINE LC 230 KV ATHIPATTU TOTAL SHUTDOWN WORK Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 14:00 1 Approved

758 Erode 59957 230 KV 230 KV MTPS # Breaker, CTs& line isolators Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 16:00 1 Sub to load Approved

759 Erode 60022 230 KV 230KV Puthansanthai-Pugalur # line entire For attending Strand cut Both the SS availing LC on the Same Feeder Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved SGC

760 Erode 60073 110 KV Monthly maintenance works Scheduled shut down at 110/11Kv Kaundampalayam SS Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 16:00 1 Approved SGC


762 Erode 60114 110 KV jumper tightness work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

763 Erode 58780 400 KV Salem 400 KV monthly maintenance work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved SGC

764 Erode 58782 110 KV Salem 400 KV monthly maintenance work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

765 Erode 58784 110 KV Salem 400 KV monthly maintenance work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

766 Madurai 58826 230 KV a) For monthly maintenance work POSSIBLE Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved

767 Erode 58843 230 KV For Monthly Maintenance work Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Sub to Auto load Approved

768 Erode 400 KV 400KV Paalavadi - MTPS II - 2 Feeder Monthly Maintenance works by Maintenance wing Possible Wed, 16/Aug/2017 9:00 Wed, 16/Aug/2017 17:00 1 Approved SGC

769 Erode 59506 230 KV Monthly Maintenance work Postponed Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

770 Madurai 59540 230 KV 230KV Kadalangudy -Thiruvarur feeder Monthly Maintenance work Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Approved

771 Madurai 59937 230 KV 230 KV Kadalangudi -Thiruvarur feeder. Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

772 Madurai 58797 110 KV For Monthly maintenance work Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

773 Madurai 58866 230 KV 230KV Thiruvarur - Kadalangudy feeder Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved


775 Madurai 58568 230 KV 230KV veeranam-Abisekapatty # ,ct with line switch For Monthly Maintenance work NOT POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Not Approved

776 Madurai 58883 230 KV 230KV Veeranam -Abisekapatty feeder. NOT POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Not Approved

777 Chennai 58603 230 KV 230KV SVC - NOKIA Feeder Entire Quarterly maintanence work Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

778 Erode 58543 110 KV Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 16:00 1 Approved SGC

779 Erode 58633 110 KV METTUR DPH 110 KV Dam power house Auto SS-2 feeder The feeder will be in service from other end. Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 15:00 1 Sub to load Approved

780 Madurai 58555 230 KV 230KV feeder breaker only(Bay 201) No interruption of power supply since feeder not comissioned POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 14:00 1 Approved

781 Erode 59015 110 KV monthly maintenance work No SS will be affected. Postponed Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 14:00 1

782 Erode 58901 110 KV For monthly maintenance works. Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 14:00 1 Sub to wind generation Approved

783 Chennai 59042 110 KV 16 MVA PR.TYR.II 16 Mva pr Tr.I &III will be in service cater the entire 11 kv loads Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 12:00 1 Approval by CBD

784 Chennai 58903 400 KV 400 KV Thiruvalam-II feeder and its equipments 400 KV Thiruvalam-II feeder will not be in service. Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Approved

785 Madurai 58951 230 KV 1)For monthly maintenance work . POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 16:00 1 Approved

786 Madurai 58960 230 KV On 230KV TTPS-Kayathar-I feeder entire For Tower to Tower inspection work. No ss will be affected. POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved SGC

787 Madurai 59119 110 KV On 110KV KKDI-SVGA # S/B SVGA- M.Patty. Disc Replacement work. Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 REPEAT Repeat

788 Chennai 58669 230 KV 230 KV Echur - Arni # Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved


790 Madurai 59001 110 KV KUTTALAM POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

791 Madurai 59177 110 KV For monthly maintenance purpose. NOT POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

792 Erode 59197 110 KV PYKARA 110KV PYKARA -MOYAR 1 # ENTIRE LINE) For monthly maintenance work NIL postponed Thu, 17/Aug/2017 8:00 Thu, 17/Aug/2017 17:00 1

VALUTHUR 230 KV

During the LC period 230KV Valuthur - Karaikudi and Kavanoor feeders will be in service. Hence, there is


MOSUR 230 KV

230KV Alamathy and 230KV Thiruvalam Feeder are in Service.Hence there will be no interruption of supply please.

MOSUR 230 KVSINGARAPET 230 KV



UNJANAI 230 KV


COIMBATORE 230 KV

1. 110KV CBE-TDLR-I feeder Breaker & CTs 2. 110KV CBE-TDLR- II Feeder Breaker & CTS ( One by One)

Sub to Kavundampalayam TSD and to be issued one by one

ARASUR 230 KV

110 KV Arasur-Somanur# breaker,CT'S ,Control and relay panels


During the L.C period,1)110 KV Sulur SS will be transferred to 230 KV O.K.Mandabum SS.2) 110 KV Somanur SS will be fed through 110 KV Arasur- Thingalur # in addition to the Poomalur SS and Thirunagar SS from 230 K.V Arasur SS.

Sulur trf to OKM, Somanur Trf to ASR-Thingalur #

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Singapuram-11 Feeder (Section between P.G.Palayam ss -Attur ss)

1)Deviakurichi 230KV SS radial fed from upto Attur 110KV SS End2)Singapuram 230KV SS radial fed from upto P.G.Palayam 110KV SS End 3)There will be no interruption of supply any other SS.

Inter loads fed from both ends

400 / 110 KV ICT III HV & LV SIDE, LAS, CTs, BREAKERS, JUMPERS & SWITCHES

a. 110 KV KRT â€“ Salem II # will be radially fed from Salem 230 KV SS end with total shut down on 110KV Karuppur SS.b. 110 KV KRT â€“ Salem â€“ I # will be back charged from Salem 230 KV SS endc. Thumbipady 110 / 22 KV SS fed from Mettur 230 KV SS.d. 110KV KRT-Vembadithalam feeder idly charged condition up to Vembadithalam SS.e. 110KV KRT-Barrage-II feeder Back charged condition.f. 110 KV KRT-Nangavalli feeder fed from Mettur 230KVSS, (Tharamangalam 110KVSS avail total shutdown on 10.8.2017)by closing Isolator at LOC:28,feeding supply to M/s JSW, Nangavalli 110KVSS.g. On completion of LC works the feeders will be normalized as in the present condition.

Edappadi, Tharamangalam,Vembadithalam,Karuppur - TSD, Hasthampaty trf to Salem, Thumbipady, Nangavalli & JSW trf to MTR, Approved vide Sl No 14 in 133rd OCC

110 KV BARRIAGE II # CT, BREAKER, BUS & LINE SWITCHES

During LC Period, 110 KV Edappady SS will be avail total shut down on 16.08.2017

Already inter loads fed from BPH2

110 KV VEMBADITHALAM # CT, BREAKER, BUS & LINE SWITCHES

During LC Period, 110 KV Vembadithalam SS will avail total shut down on 16.08.2017.

Already inter loads fed from Sankagiri

KAYATHAR 230 KV

230/110 KV Auto Transformer III, HV III and LV III breaker with CT only

During the LC period Loads of Auto III will be shared by Auto I and II. Hence no ss affected.


DEVIAKURICHI 230 KV

100 MVA Auto Transformer – II HV & LV Breakers and CTs

Auto Transformer I will be in service. 110 KV Deviakurichy-Singipuram feeder I and II will be kept radial from Singipuram 230KV SS end

PALAVADI 400 KV


No interruption of supply, Load fed through 400KV

MTPS II - 1 Feeder

SALEM AUTO 230 KV

100MVA Auto Transformer-II, HVII, LVII Breakers & their CTs and 110 KV Rasipuram feeder Breaker CT's and line Isolators.

1. 2Nos. 100MVA Auto Transformer-I & III will be in service2. 110 KV Rasipuram feeder will be radially fed from other end. 3. Mallur 110KV SS and Rasipuram 110KV SS will be availing total shutdown. 4. There will be no interruption to any SS or feeder.


KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS. All other 230KV feeders are in tied condition at Kadalangudy end.


KADALANGUDI 230 KV

For carrying out rectification works by the AEE/Lines/Thanjavur.

During the LC period,1) all other 230 KV feeders will be in tied condition,2) no supply interruption to any SS.



On 110 KV TTN - ARNI - II # breaker with C.T bus and line side switches .

No SS will be affected. During this LC period 110 KV Majalneerkayal SS will be fed from 110 KV Arni SS


THIRUVARUR 230 KV




KAYATHAR 230 KV

110KV KAYATHAR-N.S.PURAM FEEDER SEC B/W KAYATHAR & VIJAYAPURI.


DURING THE LC PERIOD,1.VIJAYAPURI SS WILL BE RADIALLY FED FROM N.S.PURAM HENCE NO SS AFFECTED

VEERANAM 230 KV

During lc period there will be no supply in the entire 230kv Abisekapatty # concurrence obtained from SE/NCES/TIN

DUE TO WIND GEN:APPD IN 133 OCC VIDE ITEM NO.116

ACHRAPAKKAM 230 KV

Defective jumper bolt rectification work at location No.56,65,70 &73 and Tree clearance work .

1. EE/Operation /Veeranam also applied for monthly maintenance work2.230 KV Isolator towards Veeranam will be kept opened in Abisekapatty and 230 KV isolator towards Abisekapatty will be kept opened in Veeranam. Hence no SS will be affected

DUE TO WIND GEN:APPD IN 133 OCC VIDE ITEM NO.116


During the above shutdown period the 230KV SVC - NOKIA feeder will be out of service

THUDIALUR 230 KV

1.110 KV TDLR-P N Palayam feeder section between 110 KV P N Palayam and 110 KV Madampalayam SS2.Bus Coupler Br & CTs

For PMI works & Monthly Maintenance works

1. 110 KV P N Palayam SS fed radialy from 230 KV TDLR SS & Madhampallayam 110 KV SS will fed from MTP SS.2. 230/110 KV Auto Tr. I & II Top & Bottom bus will be closed

PN Palayam TSD,Maddampalayam fed from Mettupalayam,110 KV Top and Bottom bus will be in parallel through Auto trf 1 and 2 switches

1) Monthly maintenance2) Annual Relay test

kumbakonam 230 KV

Monthly Maintenance feeder breaker and isolator(Line side)

THINGALUR 230 KV

110KV Kavundapadi feeder Breaker, CTs and line Isolator.

Gobi end LC recommended



110 KV OKM-Udpt 1 Feeder (Breaker, CT's & Line Switch)

During the LC period,1)110 KV Kinathukadavu ss under Total Shut down.2)110 KV OKM-UDPT I feeder loads will be fed from 110 KV UDPT SS.3)Hence no ss will be affected.

KADAPPERI 230 KV


Approval by CBD

Alamathy 400 KV

For Annual relay testing and Maintenance works.


PERAMBALUR 230 KV

1)230/110KV Auto Transformer I (100MVA), HV I Breaker & LV I breaker, CT's, Isolators.

During above period of shut down 1)110KV Kallakudy -I ( Siruvachur) feeder tie will be opened at Perambalur SS. 2)The remaining loads will be fed Through Auto Transfermer III(100MVA) of Perambalur Auto SS.



SUB TO TTPS 3M/C CONDITION

KARAIKUDI 230 KV

During the L.C Period the 110KV Kalayarkoil SS Under TSD. Hence there willbe No.Interruption of Supply.

ECHUR 230 KV

Monthly Maintenance work carried in all Cts and isolators in 230 KV Echur - Arani #.

At the time of LC1.230 KV Echur -Arani # breaker will be HT condition and isolotors are kept open, After completion of Maintenance work 230 KV Echur -Arani # breaker will be charged and isolators are kept closed.There is no interruption of supply to the Substation.

KAYATHAR 230 KV

230KV KAYATHAR-TTPS-I FEEDER BREAKER WITH C.T ENTIRE LINE.




110 KV KGTPS-THIRUVARUR FEEDER BREAKER WITH ENTIRE LINE

110 KV KGTPS-THIRUVARUR FEEDER ANNUAL RELAY TESTING WORKS BY AEE/P&C/THIRUVARUR AT BOTH END.ROUTINE MAINTENANCE AND BREAKER TESTING WORKS BY AEE/EM/KGTPS AND AEE/MRT/KGTPS.

During the LC period there is no interruption of supply to any ss.All other feeders will be in tied conditions.


SANKANERI 230 KV

110KV Sankaneri-SRputhoor feeder Breaker CTS&Lineswitches. .

During the LC Period 110KV SRputhoor Supply Radial from SRputhur to 110KV Irrukkandurai SS. Hence no SS will be affaected.

110 KV Sandinallah - KPH 6 # LC recommended




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days


794 Chennai 59223 110 KV 110 KV CAPACITOR BANK-1 For Quarterly maintenance work. For Quarterly maintenance work. Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 5:00 1 Approved

795 Madurai 59053 PH-II MACHINE No generation in Kodayar PH-II POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

796 Erode 59075 110 KV INGUR 230 KV 110 KV Bus Coupler Breaker , CT’s,Isolator MONTHLY MAINTENANCE WORKS DEPDNDING UPON LOAD CONDITION Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

797 Madurai 59118 110 KV On 110KV KKDI-SVGA # S/B SVGA- M.Patty. Disc Replacement work. POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved


799 Madurai 59276 230 KV 400KV Pugalur(PGCIL) - Karaikudi Feeder I & II Thu, 17/Aug/2017 9:00 Wed, 23/Aug/2017 18:00 7

800 Madurai 59165 230 KV 230 KV Eachangadu-Neyvely TS I # Breaker & CT's For monthly maintenance works POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Approved SGC

801 Madurai 59167 110 KV 110kv RNPM-UDPT # Breaker and CT 1)Monthly maintenance2)Relay Testing POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 14:00 1 Approved

802 Erode 58689 230 KV possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 one by one Approved

803 Madurai 59241 110 KV 110 KV SRP - KDR I # section between TKY & VNR Tree clearance work POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved SGC

804 Erode 59249 110 KV 110kv Sandynallah - PH-6 Feeder a)Annual Relay Testing Work possible Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Approved

805 Erode 59255 110 KV GOBI 230 KV Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Kavundapadi TSD Approved

806 Chennai 59273 230 KV Monthly maintenance work. Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

807 Madurai 59291 230 KV 230KV Bus section II POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 16:00 1 Approved

808 Madurai 59293 230 KV 230KV SBT - CKNI # Bkr, CTs, relays and line entire POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 16:00 1 Approved

809 Madurai 59309 230 KV 230 KV Checkanurani - Sembatty feeder For MMW&LMW and P&C During LC Period There will be no supply in the entire feeder POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

810 Erode 59422 110 KV Monthly Maintenance Work postponed Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1

811 Erode 59338 110 KV possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 sub to load Approved

812 Madurai 59350 110 KV PERIYAR For Monthly Maintenance work. POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 13:00 1 Approved

813 Madurai 59366 110 KV Monthly Maintenance Work. POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Approved

814 Chennai 59388 230 KV ARNI 230 KV For monthly Maintenance work. Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

815 Chennai 58704 230 KV 230KV SVC-NOKIA Feeder Lines Lc and jumper tightness work Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved


817 Madurai 58706 230 KV Monthly maintenance POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

818 Madurai 59418 110 KV LINE MAINTENANCE WORKS POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 SUB TO THONDI S/D Approved SGC

819 Madurai 59634 230 KV NOT POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 DUE TO WIND GEN Approved SGC

820 Madurai 59495 230 KV 230/33kv Power Tr1, HV and LV breaker ONLY Monthly maintenance work POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 15:00 1 Approved


KAYATHAR 400 KV

400 KV Main Breaker for ICT2(410-52) 400KV Tie Breaker for ICT2 & ICT3 (411-52),230KV LV Breaker for ICT 2 (206-52) & 400/230KV ICT2

Monthly Maintenance work and Annual relay test by AEE/P&C/kayathar

During the LC period there will be no supply in 400 KV Main Breaker for ICT2(410-52) 400KV Tie Breaker for ICT2 & ICT3 (411-52),230KV LV Breaker for ICT 2 (206-52) & 400/230KV ICT2. Hence no substation affected.

SUB TO WIND GEN AND NO BLOCKING OF WIND GEN: APPD IN 133 OCC VIDE ITEM NO.146

KOYAMBEDU 230 KV

Approval by SE/O

GENERATING STATIONS

KODAIYAR PH2

GRT Annual relay testing, Rearrangement of existing 110 KV station battery set for precommissioning work,


Sub to equal division of load

KARAIKUDI 230 KV

During the L.C Period the 110KV Kalayarkoil SS Under TSD. Hence there willbe No.Interruption of Supply.


PUGALUR 230 KV

1)110 KV Pugalur - Karur Radial feeder Breaker, CTs, 2) Line section between 230KV Pugalur and 110KV Veepampalayam SS in 110KV Karur feeder

Monthly maintenance work. Premonsoon and jumper tightness wor

During the LC Period, 1.110KV Manmangalam SS is proposed total shutdown. The remaining 110KV Veppampalayam SS,110KV KarurSS load will be fed through 110KV Renganathapuram feeder via 110KV Malaikovilur SS. 2)The 110KV Switch towards pugalur side under opened condition at 110KV Veeppampalayam SS. 3.The 110KV Switch towards 110 KV Karur SS at 110KV Malaikovilur SS under close condition . 4.110KV Renganathapuram feeder # tie opened at 110KV Renganathapuram SS.Hence there is no supply interruption to any SS.


PUGALUR 230 KV

1. Stringing of OPGW cable on following Locations (i) between Loc. 415(115/0)-419(115/4) (ii) between Loc. 293(81/4)-294(81/5) 2. OPG cable joint work at Loc. 449(132/0), 424(120/0), 306(83/4), 266(76/2), 253(74/1) by TLC/Madurai

During the LC period, 1. There will be no supply in 400KV Pugalur - Karaikudi feeder I & II entire.2. OCC approval to be obtained in the August OCC meeting.Remarks: LC period 17.08.17/09.00 Hrs to 23.08.17/18.00 Hrs

MESSAGED SENT AND TO BE ADDED IN THE 134 OCC.OCC APPROVAL AWAITED

Awaiting OCC Approval

EACHANGADU 230 KV

During the above shutdown period the 230 KV Eachangadu ss will be Radially fed from 230KV Poyyur ss.

SUB TO LOAD CONDITION AND 230 ALDR-TRY#1&2 LOADING


During LC period the feeder will be radially fed from UDPT end intermediate SS 110kv Oddanchatram SS avail total shutdown load relief 22MW .Hence no interruption to any SS.

SUB TO WIND GEN AND CONCURRENCE FROM ERODE.

ANTHIYUR 230 KV

230KV FEEDERS MTPS-I,GOBI,230KV BUS COUPLER AND AUTO TRANSFORMER-I&II ONE BY ONE


DURING THE LC PERIOD 230KV MTPS-I AND GOBI FEEDER WILL BE KEPT IN RADIAL CONDITION FROM OTHER END.LC APPLIED VIDE P_ID NUMBER 58668 ON 24.08.17 MAY BE CANCELLED.

SRPUDUR 230 KV

During the LC period 110 KV SR Puthur - KDR I feeder will be radial from SRP upto TKY SS (incl) and radial from KDR upto VNR (Incl).Hence no ss will be affected.

SUB TO WIND GEN AND CONCURRENCE FROM TRACTION

Sandinallah 110 KV

a) During LC period the above feeder Radially fed from other end.b) No SS will be affected

Sub to KPH 6 generation

110 KV Kavundapadi Feeder Breaker, CTs and line switch with entire line

FOr Monthly maintenancxe work and for GRT Relay testing work

110 KV Kavundapadi SS may avail total shutdown,no other SS will be affected


230 KV Tiruvannamalai-Neyveli#, Breaker, CT's and Line Isolator

During the period of L/C time,1. 230 KV T.V.Malai-Neyveli # will be OFF condition,2. Other 2 Nos 230 KV T.V.Malai-Singarapet and Villupuram # will be in service. Hence there is no interruption of supply please.

SEMBATTY 230 KV

Replacement of exg. CKNI bus switch and HV II switch by new 2000A switch

During the LC period, 1. Auto II and III will be in off condition by opening HV and LV breakers. 2. 230KV Myvadi # will be in off condition and CKNI # will be under LC on both ends. 3. 230KV Theni and Auto I will be in service. 4. 110KV Pasumalai, AKL I, II, RNPM I, II will be in tie condition, if Auto over load at SBT end the above feeders will be kept radial from other end. 5. Shriram # will be in tie condition 6. 110KV Udumalpet , Theni I and II will be kept in tie condition. (If power will import) otherwise feeders will be kept radial from other end. 7. 110KV Thadicombu SS loads will be fed from RNPM end. and Alundur will be radial from other end. 8. 110KV DGL and Sembatti power SS will be radial from Sembatti SS. 9. 110KV V.N.Patti, Sengurichi, Sendurai, V.K.Patti, Kannivadi, Gandhigramam, S.V.Patti and Samayanallur are availing total shutdown. (Total load relief : 88.3 MW)

SUB TO LOAD CONDITION. CONCURRENCE FROM ERODE/SLDC.

SEMBATTY 230 KV


During the LC period other end also availing LC and no Load relief required.




Udumalpet 110 KV

110 KV UDT –Aliyar –II #r breaker, CT’s and line. between Udt and Devanoorputhur SS


110 KV Aliyar - Negamam # LC recommended


LOWER METTUR 4

110KV BPH IV-New Suriyampalayam feeder (section between BPH4-New suriyampalayam s.s) Breaker, CT, line isolators, wavetrap , CVT, etc.,

For Conducting Annual Relay test by AEE/P&C 1/ERODE & Quarterly maintenance work.

i) During the LC period 110KV BPH IV – BPH III feeder and BPHIV - Pallakkapalayam feeder will be in service. 110KV New Suriyampalayam s.s wii be radially fed from Erode 110 Kv s.s. ii) At New suriyampalayam s.s end , sf6 breaker towards BPH4 direction should be handtripped @ NSPM s.s and line isolator towards BPH4 to be kept opened @NSPM s.s. iii) Both Units will be in standby or in service as per the PWD Demand.

110 KV Periyar-Theni-3 Feeder Breaker with CTs only.

During the LC period the feeder will be radial from Theni up to Periyar. No ss will be affected.


SAMAYAPURAM 230 KV

110 KV SMPM- Srirangam # Breaker and CT's only (Tied feeder)

(A)During the LC period 110KV SMPM-Srirangam feeder will be radially fed from 230 KV Auto SS-Trichy. (B) 110KV Samayapuram SS is also availing shutdown on that day (C) Concurrence obtained from 230KV Auto SS, Trichy. (D) No interuption to any other 110 KV SS


230 KV Arni â€“ Echur #(Both End),230KV Breaker, CTâ€™s & Line Isolator

All other 4 Nos. 230KV feeders will be in service.Hence no interruption of supply


During the period of shutdown Sriperumbudur-Nokia feeder will be continued in service

ALUNDUR 230 KV

230KV Alundur - Thanjavur-II Feeder Breaker, CT's, CVT's and Line Isolators.

a)Monthly Preventive Maintenance work. b)Premonsoon Inspection and tree cutting work. c)Relay Testing Work.

During the LC period, a)Other end also avail shutdown. b)Load relief Eachankkottai SS - 11MW b)All other 230 KV feeders will be in service. c)There will be no interruption of supply to any other feeders.

DUE TO LOAD CONDITION: MORE S/D NEEDED

KODIKURICHY 230 KV

i) 100 MVA Auto-II HV, LV breakers with CTs and all Isolators.

During the L.C period(i)Auto-II will be out of service,(ii) Auto-I & III will Cater the SS load


KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC. BET. THIRUVADANAI TO THONDI

MAIN LINE WILL BE KEPT IN TIED CONDITION. THONDI TO BE AVAILED SHUTDOWN

VEERANAM 230 KV

230 KV Transfer bus & 230KV Veeranam - Abisekapatti feeder

New 230KV bay dropper erection & Stability Testing works at Transfer bus by AE/Sub-station Erection/ Tirunelveli

Already LC apply 230KV Veeranam-Abisekapatti feeder CT with Line Switch for monthly maintenance work by AE/M/ 230 KV SS Veeranam Vide ID No: 58568.During the LC period there will be no supply on the entire 230KV Abisekapatti feeder concurrence obtained from superintending Engineer/Non Conventional Energy Sources/Tirunelveli

UDAYATHUR 230 KV

During the LC period the Power Tr1 loads will be transferred to other Power Trs.


KARAMADAI 230 KV

110KV Karamadai- Arasur I feeder breaker, CT's& CVT's

For monthly maintenance work of 110KV Karamadai- Arasur I feeder breaker, CT's& CVT's

110KV MGC PalayamSS, 110KV EllapalayamSS& 110KV KaduvettipalayamSS are already in radial condition from 230KV Arasur SS End

Inter loads fed from Arasur



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

822 Chennai 59527 400 KV 400KV Alamathy-II # Maintenance Work Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

823 Erode 59741 230 KV Power transformer No IV HV breaker and Isolators. Monthly maintenance and P&C check. postponed Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Not Approved

824 Erode 59772 230 KV 230 KV Northern Bus Entire For monthly maintenance works postponed Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Not Approved

825 Madurai 59538 110 KV POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

826 Madurai 59543 110 KV 110KV Vaitheeswarn koil -Thiruvengadu feeder entire Line inspection and rectification work POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved

827 Erode 59567 230 KV Both end possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 14:00 1 Sub to load Approved

828 Erode 59609 110 KV Monthly mtce work possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 14:00 1 Approved SGC

829 Erode 59654 110 KV 110KV Malco II Feeder Monthly maintenance work Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Sub to malco gen Approved

830 Chennai 59684 110 KV 110 KV Sornavoor – Nallathur 110 KV nallathur ,sornovour-SS Total shut down Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved


832 Erode 59723 110 KV 110KV Arasur-Coimbatore # breaker and CTs. For monthly maintenance works. The feeder normally radial from 230 KV Coimbatore SS. possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 12:00 1 Approved

833 Madurai 58734 230 KV 1. For monthly maintenance works . POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 16:00 1 Approved

834 Madurai 59797 230 KV For Monthly Maintenance Work. POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

835 Madurai 59876 110 KV 110KV KNMLM -THENI I POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 SUB TO WIND GEN Approved

836 Madurai 59991 230 KV 230 KV Thiruvarur - Kadalangudy feeder POSSIBLE Thu, 17/Aug/2017 9:00 Sat, 19/Aug/2017 18:00 3 Approved SGC

837 Erode 59890 110 KV Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved SGC

838 Chennai 59909 230 KV 230 KV S.P.Koil -Kalpakkam II Feeder Line Mtce Work Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

839 Chennai 59938 110 KV Kanji 110 KV Possble Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved


841 Madurai 58768 230 KV Monthly maintenance Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 REPEAT Repeat

842 Erode 58799 230 KV AUTO TRANSFORMER -II Monthly maintenance Postponed Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1

843 Erode 59961 110 KV 110 KV Link I # Breaker and CTs & line isolators Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 16:00 1 #2 will cater the load Approved

844 Chennai 59982 110 KV 110 KTR-Kadaperri I feeder Jumper tightness at various location Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved

845 Madurai 59986 230 KV 230Kv Thiruvarur - Kadalangudy feeder POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 18:00 1 Approved

846 Madurai 58744 230 KV TTPS 230KV TTPS - KAYATHAR FEEDER I ENTIRE POSSIBLE Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Approved SGC

847 Erode 60006 110 KV Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 15:00 1 #2 will cater the load Approved

848 Erode 60042 110 KV Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 18:00 1 Sub to load Approved

849 Erode 60072 230 KV 230KV Myvadi link I # Breaker & Line entire Monthly Maintenance Possible Thu, 17/Aug/2017 9:00 Thu, 17/Aug/2017 17:00 1 Sub to load Approved

850 Madurai 58816 400 KV MONTHLY MAINTENANCE WORK POSSIBLE Thu, 17/Aug/2017 10:00 Thu, 17/Aug/2017 17:00 1 Approved

851 Erode 58643 230 KV MTPS MTPS.I TO MTPS.II LINK FEEDER MONTHLY MAINTENANCE PROGRAMED LC Postponed Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 ICT 2 LC at Salem400

852 Erode 57655 230 KV 230KV Myvadi link II # Breaker & Line entire Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Sub to load Approved


854 Erode 58544 110 KV 110 KV Coimbatore II feeder Br & CTs For Monthly maintenance works No intermediate SS possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 12:00 1 #1 will cater the load Approved

855 Erode 58905 110 KV For monthly maintenance works. Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Sub to Panapatty TSD Approved SGC

Thiruvalam 400 KV

A)400KV Alamathy-II feeder kept in off condition.B)All other feeders (400KV & 230KV) will be in service



Power transformer No I and III in service. Power transformer No IV loads will be fed from Power transformer No I & III.

Power Trf 2 under outage

PONNAPURAM 230 KV

Subject to the load condition, 1.230KV OKM & S.D.Palayam #s will be cut off,2.Auto Tr. II will be cut 0ff,3.Thungavi SS G.C-II will be transferred to 230KV Udt SS / 110KV Poolavadi #,4.110KV Ingur-I & II will be kept radial from other End,5.Hence Load will be with limits of other two Auto Trs.& No SS will be affected,Hence No SS will be affected.

wind gen transfer not feasible

PUDUKOTTAI 230 KV

110 KV T.NALLUR FEEDER BREAKER, CT AND LINE (ENTIRE RADIAL FEEDER

FOR MONTHLY MAINTENANCE WORK OF BREAKER, CT, CVT, ISOLATORS 110 KV EHT LINE AND GRT TESTING WORKS

110 KV T.NALLUR SS ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY.

KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS.110KV Poraiyar and Thiruvengadu SS proposed total shut down on the same day.

Udumalpet 400 KV

230KV Myvadi-Udumalpet LINK - 1 # Breaker & CT line entire


ALIYAR 230 KV

110KV ALR-NGM FEEDER CB,CT AND LINE SECTION BETWEEN ALR SS&MUTHUR SS

1)during the LC period pollachi SS will be total shutdown2)Muthur SS will be fed from NGM SS

Pollachi TSD and Muthur fed from Negamam

METTUR AUTO 230 KV

During the LC period other 110KV Malco I & III feeders will be in service.

CUDDALORE 230 KV

At Loc. 2(s) Top phase 3 nos Disc Flashed over to be replaced.Jumper tightness checking in various locations

THANJAVUR 230 KV

230 KV Thanjavur - Alundur-2 feeder breaker, CT & LI.

For monthly maintenance works by the AEE/Mtce/Thanjavur.

During the LC period,1) other end also will avail LC on the same day,2) all other 230 KV feeders will be in tied condition,3) no supply interruption to any SS.


ARASUR 230 KV

Already inter loads fed from Coimbatore

TRICHY 230 KV

100MVA Auto Transformer II, HV II & LV II BRs, HV II & LV II and their LAS,CTs and isolators.



ANUPPANKULAM 230 KV

100 MVA AUTO TR. I, HV-I and LV-I Breaker with CT only.

During the LC period the Auto Tr. II & III will cater the load of Auto Tr. I. Hence No SS affected.




During the LC period the feeder will be radial from Theni SS. Upto LS of KNMLM SS.

THIRUVARUR 230 KV

Erection of tower at loc. No. 92 and stringing of 230KV DC line between loc. no. 91 & 92 (LILO portion) in 20Kv LILO of Thiruvarur - Kadalangudy 230KV SC line at Kumbakonam 230KV SS.

During the LC period all other 230KV feeders are in tied condition. Hence there will be no interruption of supply to any other substation.



1.110 KV SSREL feeder breaker,CTs, Line switch.2.Auto Transformer - II with HV- II Breaker and CTs & LV- II Breaker CTs and Auto II Transfer Switch3. Palavadi (Already Mettur #) 230KV feeder breaker ,CT`s, Line Switch and Transfer Switch and Line Between 230 KV Karimangalam SS - 400/230-110 KV Palavadi SS.4. 230 KV TBC ( Bus Coupler) Breaker with isolators for Transfer Switch Maintenance Purpose.

Carryout Monthly SS Maintenance works by maintenance wing, Lines wing Programed in 230 KV Palavadi (Already in Mettur #)Jumper Bolt Nut's Tightness Work at Various locations.

110 KV Pochampally SS, 110 KV Uthangarai SS, 110 KV availing Total Shutdown Total Relief : 35 MW, the Station load will Managed by keeping Auto Transformer I & III and also 230 KV Shoolagiri , 2 No's Grid feeder in service and SSREL Supply fed through 230 KV Singarapet SS

Pochempalli & Uthangarai TSD, SSREL fed from SNPT, Other Auto trf will cater the load

S.P.KOIL 230 KV

During period of shutdown, 230 KV S.P.Koil- kalpakkam -I ,Acharapakkam, Echur feeders will be in service

110 KV Kanchipuram â€“ Kaveripakkam feeder (In between 110 KV Pallur SS and 110 KV Damal SS).

For jumper tightness work in LILO of 110KV Damal SS & EHT Line maintenance work.

During the period of LCi) The 110KV Kanchipuram â€“ Kaveripakkam Feeder breaker will be in â€˜OFFâ€™ Condition ( Line LC in between 110 KV Pallur -110 KV Kanchipuram and 110 KV Damal SS). ii The 110 KV Damal SS is availing total Shutdown. Hence there will be no interruption of supply please

THANJAVUR 230 KV

110 KV Thanjavur - NTKudi feeder(Line portion between Orathanadu 110 KV SS and Thirukkanurpatti 110 KV SS)

Rectification works by the AEE/Lines/Thanjavur

During the LC period,1) this feeder will be radial from NTKudi 230 KV SS upto 110 KV Orathanadu SS, 2) this feeder will be radial from Thanjavur 230 KV SS upto 110 KV Thirukkanurpatti SS, 3) 110 KV Eachankottai SS will avail shutdown on the same day (Load relief: 11 MW),4) all other 110 KV feeders will be in tied condition,5) no supply interruption to any SS.


KODIKURICHY 230 KV

i) 100 MVA Auto-II HV, LV breakers with CTs and all Isolators.

During the L.C period(i)Auto-II will be out of service,(ii) Auto-I & III will Cater the SS load

SINGAPURAM 230 KV

1.Monthly maintenance only one AUTO TRANSFORMER is available 2.Auto Transformer will not be in service and 230KV main bus and 110KV bus will be in service and there will be no interruption to the intermediate SS3.(110KV salem TSD is on 17.08.2017)

To be scheduled with TSD


SINGARAPET 230 KV



KORATTUR 230 KV

The 110 KV Nulumber SS fed from 110 KV KTR-Kadaper II fed from 110 KV Thirumudivakkam SS fed from 230 KV Kadaperri SS 110 KV Ramapuram,110 KV SRMC SS fed from 110 KV Porur SS

THIRUVARUR 230 KV

Erection of tower at loc. No. 92 & stringing of 230KV DC line between loc.No. 91 & 91 (LILO portion) in 230KV LILO of Thiruvarur - Kadalangudy 230KV SC line at Kumbakonam 230KV SS.

During the Lc period all other 230Kv feeders are in tied condition. Hence there will be no interruption of supply to any other substation.


ANNUAL BREAKER TESTING BY MRT - I AND RELAY TESTING WORK BY GRT /TTN.

1. 230KV TTPS - KAYATHAR FEEDER I BREAKER TRIPPED CONDITION AT BOTH ENDS2. 29A & 29B ISULATORS KEPT OPEN CONDITION3. EARTH SWITCH SHOULD BE CLOSED CONDITION AT BOTH ENDS


Singarapet 110 KV

110KV LINK I # BREAKERS, CT'S AND LINE SIDE ISOLATORS.


DURING THE LC PERIOD,1) 110KV LINK I # BOTH END HAND TRIP CONDITION AND 110KV LINK # II BOTH END TIED CONDITION.2) HENCE, THERE IS NO INTERRUPTION OF SUPPLY.

LOWER METTUR 1

BHAVANISAGAR MHPH 110 KV MICRO-MOYAR FEEDER MICRO END

For GRT Annual Relay Tests in 110 KV Micro-Moyar Feeder, Micro End at MHPH / Bhavanisagar

1. During LC period, 110 KV Micro-Moyar Feeder, Micro End breaker only will be hand tripped. The feeder will be radially fed from Moyar end. Hence no SS will be affected.2. During LC period, power evacuation will be done thorough 110 KV Micro-Bsr SS Feeder. Hence, generation loss will not arise.

UDUMALPET 230 KV

DURING THE LC PERIOD 230KV MYVADY LINK II FEEDER WILL CATER THE 230 KV MYVADY LINK I FEEDER

KANARPATTY 400 KV

400/110KV ICT 3 MAIN, TIE AND LV BREAKER WITH CT AND TRANSFORMER BAY NOS 410, 411,101

ICT 4 AND 5 WILL BE IN SERVICE, LOAD WILL BE SHARED BY THE TWO TRANSFORMERS, NO FEEDER OR SS IS AFFECTED.



UDUMALPET 230 KV

FOR MONTHLY MAINTENANCE WORKS

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL CATER WITH MYVADI LINK I FEEDER

KAYATHAR 230 KV

110KV MELAKALLUR-SANGANERI FEEDER SEC B/W MELAKALLUR&KARISALPATTI.


DURING THE LC PERIOD,1.KARISALPATTI SS WILL BE RADIALLY FED FROM SANGANERI. HENCE NO SS AFFECTED


THUDIALUR 230 KVOTHAKKAL MANDABAM 230 KV

110 KV OKM-Negamam I Feeder Breaker, CT's & Line Switch)

During the LC period, 110 KV Panapatty ss will be under Total Shut down. Hence no ss will be affected.



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

856 Madurai 58923 110 KV For Monthly maintenance work POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

857 Erode 59080 110 KV INGUR 230 KV DEPENDING UPON LOAD CONDITION repeat Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 p-id 58761 Repeat

858 Madurai 58961 230 KV On 230KV TTN-Kayathar feeder entire For tower to tower inspection work No ss will be affected. POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

859 Madurai 58969 110 KV 110 kv Melakallur - Sankaneri # breaker with CT only For monthly maintenance work POSSIBLE Fri, 18/Aug/2017 10:00 Fri, 18/Aug/2017 13:00 1 Approved

860 Erode 58988 110 KV During the LC period other end also Programmed LC on that day Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved SGC

861 Erode 59016 110 KV monthly maintenance work 110KV Thingalur SS availing total shutdown. Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Thingalur TSD Approved

862 Madurai 59041 230 KV Monthly Maintenance work POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

863 Madurai 59076 230 KV For monthly maintenance work POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

864 Madurai 59078 110 KV POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 SUB TO TOTAL S/D Approved SGC

865 Madurai 59081 110 KV For monthly maintenance work POSSIBLE Fri, 18/Aug/2017 10:00 Fri, 18/Aug/2017 12:00 1 Approved SGC

866 Madurai 59131 110 KV POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC


868 Madurai 58691 230 KV POSSIBLE Fri, 18/Aug/2017 8:00 Fri, 18/Aug/2017 17:00 1 Approved SGC

869 Madurai 59213 230 KV EE/ O/ Checkanoorani has also programmed POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Approved

870 Madurai 59299 230 KV 230KV Bus Section II POSSIBLE Fri, 18/Aug/2017 7:00 Fri, 18/Aug/2017 16:00 1 Approved

871 Chennai 59303 230 KV Fri, 18/Aug/2017 10:00 Fri, 18/Aug/2017 17:00 1 Approved

872 Erode 59405 230 KV MTPS MTPS-I - MTPS-II LINK Feeder Programmed LC Postponed Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 ICT 2 LC at Salem400

873 Madurai 59304 230 KV 230KV Bus entire POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Approved


875 Madurai 59310 230 KV 230KV SBT - Theni # Bkr, CTs and line entire POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 16:00 1 Approved SGC

876 Madurai 59311 230 KV 230 KV Checkanurani - Pasumalai II feeder entire For MMW&LMW and P&C work During LC Period There will be no supply in the entire feeder POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

877 Madurai 59354 110 KV KUTTALAM POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

878 Madurai 59367 230 KV 230KV Bus Coupler Breaker & isolotors (idle) Monthly Maintenance Work No Interuption POSSIBLE Fri, 18/Aug/2017 10:00 Fri, 18/Aug/2017 17:00 1 Approved

879 Madurai 59376 230 KV Monthly Maintenance Work POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

880 Erode 59424 110 KV Monthly Maintenance Work Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Sub to #2 loading Approved

881 Erode 59448 230 KV 230KV KR Thoppur –Unjanai feeder Tension point jumpers checking work Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved SGC

882 Madurai 59549 230 KV 230KV PPN-Thiruvarur Feeder entire Line inspection and rectification work POSSIBLE Fri, 18/Aug/2017 8:00 Fri, 18/Aug/2017 18:00 1 Approved

883 Erode 59685 230 KV MTPSII 230KV MTPS FEEDER Postponed Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 ICT 2 LC at Salem400

884 Madurai 59550 110 KV 110KV Mayiladuthurai -KGTPS feeder entire Line inspection and rectification work POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

KAYATHAR 230 KV

110 KV kayathar - Kodayar feeder, breaker with CT only

During the LC period, the feeder will be radial from other end. Hence no ss affected


110KV Railway traction – I # Breaker, CTs, ,Isolators and Line side Isolator

MONTHLY MAINTENANCE WORKS AND GRT WING ANNUAL RELAY TESTING WORK



Melakallur 110 KV

During the LC period, the sankaneri # will be radial upto karisalpatti SS. Hence no ss affected. AE/Lines also availing lc on the same date


UNJANAI 230 KV

1. Unjanai- Sankari 110KV Feeder,Breaker,CTand LIne Side Isolator only2.Unjanai-Salem 400KV SS Feeder,Breaker,CTs and Line side Isolator only

For monthly maintenace work and GRT Annual Test work

1. Sub to Sankagiri TSD 2.Sub to 230 KV DKY-TAQA # tie, other wise 230 KV PSI-PGLR # will be over load

THINGALUR 230 KV

110KV Thingalur Link feeder Breaker, CTs and line Isolator.

KAYATHAR 400 KV

230KV Anuppankulam feeder beaker (210-52) & CT,CVT,LAS only

During the LC period there will be no supply in 230KV Anuppankulam feeder beaker (210-52) & CT,CVT,LAS only. hence no substation affected



230/110 KV Auto II, 230KV HV Breaker II with CT, 110KV LV Breaker II with CT

During the LC period 110 KV Thottiapatti SS, 110KV Padikasuvaithanpatti SS , 110KV Srivilliputtur SS and 110KV Nallamanaickenpatti SS will be availing total Monthly shutdown on that day. 110KV Viswanathaperi-Veerasigamani-II feeder and 110KV Kodikurichi -Kadayanallur Feeder radial from other end and concurrence obtained from other end.Hence no SS affected.


110 KV Thottiapatti # breaker with C.T and Bus & line isolators,

110 KV Thottiapatti # breaker with C.T and Bus & line isolators,



110KV Bus Section II with 110 KV PT-II and 110KV Kodikuruchi # Breaker and bus isolator & 110KV Viswanathaperi #breaker with C.T and Bus isolator 110KV Bus Section II with 110 KV PT-II and 110KV Kodikuruchi # Breaker and bus isolator & 110KV Viswanathaperi #breaker with C.T and Bus isolator


SUB TO WIND GEN,KDRI AUTO LOADING AND LOAD CONDITION

PUGALUR 230 KV

110KV Pugalur-Link feeder Breaker,CTs,Line switch and line entire

For Monthly maintenance work . Tree cutting work.

During the L.C period, 110 KV Pugalur SS proposing total shut down and concurrence obtained from EHT consumer M/s. EID Parry/Pugalur.The 110KV Line switch towards 230KV SS Pugalur under opened condtion at 110KV Pugalur SS. There is no interuption to any SS.

KARAIKUDI 230 KV

On 230/110Kv 50MVA Auto.Tr-III & Its Allied Equipments.

1)Monthly mtc Work.2)Annual Relay Test by GRT.

During the LC Period the Auto.Tr-III Load Will be Contain other Auto.Tr-I & II. Hence there will be No interruption Of Supply.


KAYATHAR 230 KV

230KV KAYATHR-TTN AUTO FEEDER BREAKER WITH C.T & ENTIRE LINE




PASUMALAI 230 KV

1)230 KV Pasumalai - Checkanurani # - II , BKR & CT,LI only 2)Line Entire.



SEMBATTY 230 KV

Replacement of exg. Strung bus (Zebra) by Moose conductor and 3

During the LC period, 1. Auto II and III will be in off condition by opening HV and LV breakers. 2. 230KV Myvadi and CKNI # will be in off condition 3. 230KV Theni and Auto I will be in service. 4. 110KV Pasumalai, AKL I, II, RNPM I and RNPM II will be in tie condition, if Auto over load at SBT end the above feeders will be kept radial from other end. 5. Shriram # will be in tie condition 6. 110KV Udumalpet , Theni I and II will be kept in tie condition. (If power will import) otherwise feeders will be kept radial from other end. 7. 110KV V.N.Patti SS loads will be fed from RNPM end. 8. 110KV Alundur will be kept radial from other end. 9. 110KV Thadicomdu, Sithargalnatham, AMNR, Natham, Dindigul, Sembatti SS, Thamaraipadi, Angunagar, Thadicombu, Reddiyarchatram, Pappampatti are availing total shutdown. (Total load relief : 152.9 MW)

SUB TO LOAD CONDITION.CONCURRENCE FROM ERODE/SLDC


230 KV Sulurpet Feeder, Breaker,230KV CTs Line Isolator


During the Period of Shut down the 230KV Sulurpet feeder Tie open at 230KV Gummidipoondi SS end , Concurance to be obtained from OD/230KV SS Sulurpet




SEMBATTY 230 KV

Releasing and stringing of strung bus for replacement of Zebra conductor by Moose conductor in 230KV Bus II

During the LC period, 1. Auto I,II and III will be in off condition by opening HV and LV breakers. 2. 230KV Theni, Myvadi and CKNI #s will be in off condition 3. 110KV Pasumalai, AKL I, II, RNPM I and RNPM II will be in tie condition. 5. Shriram # will be in tie condition 6. 110KV Udumalpet , Theni I and II will be kept in tie condition. (If power will import) otherwise feeders will be kept radial from other end. 7. 110KV V.N.Patti SS loads will be fed from RNPM end by closing series switch at Vedachandur SS. 8. 110KV SBT- Alundur # will be kept radial from other end. 9. 110KV Thadicomdu, Sithargalnatham, AMNR, Natham, Dindigul, Sembatti SS, Thamaraipadi, Angunagar, Thadicombu, Reddiyarchatram, Pappampatti are availing total shutdown. (Total load relief : 152.9 MW).


SEMBATTY 230 KV

110KV RNPM III # Bkr, CTs, relays and sec. bet. SBT and V.N.Patti SS


During the LC period, Thadicombu SS is availing total shut down, the feeder will be radial from RNPM end upto V.N.Patti SS. Hence no interruption to any SS.


SEMBATTY 230 KV

1. Monthly maintenance work 2. tree clearance work.

During the LC peirod, other end also availing LC and no Load relief required.

SUB TO LOAD CONDITION.LC MAY BE RESTRICTED TO 09.00 TO 14.00 HRS ONLY ALONG WITH 230 KV BUS ENTIRE LC



110 KV KGTPS-MAYILADUTHURAI FEEDER BREAKER WITH ENTIRE LINE AT BOTH END.

REGULAR AND ROUTINE BREAKER MAINTENANCE AND TESTING WORKS.


SAMAYAPURAM 230 KVAMUTHAPURAM 230 KV




Udumalpet 110 KV

110 KV UDT –O.K.M -I #r breaker, CT’s and line.Between UDT and Anthiyur


SALEM AUTO 230 KV

1. 230KV KR Thoppur Unjanai feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. K.R.Thoppur 400KV SS is availing breaker and line switch LC.4. There will be no interruption to any SS.

Sub to 230 KV DKY-TAQA # tie, other wise 230 KV PSI-PGLR # will be over load

KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS. PPN plant proposed LC for preventive maintenance work at their end.


MONTHLY MAINTENANCE WORKS TO BE CARRY OUT.

UNIT IN SERVICE. ALL 400KV FEEDERS ARE IN SERVICE. ALL 230KV FEEDER METTUR AUTO SS ,GOBI,STANDBY TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.


KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS. all other feeders are in tied condition at both end.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

885 Erode 59727 110 KV For monthly maintenance works. Approved Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 15:00 1 Sub to grid voltage Approved

886 Erode 59773 110 KV For monthly maintenance works Postponed Fri, 18/Aug/2017 10:00 Fri, 18/Aug/2017 17:00 1 Not Approved


888 Madurai 59597 230 KV then I 230 KV 230 KV Theni-Sempatty # Br., C.T and line isolator POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved SGC

889 Erode 59615 110 KV 110KV ALR- SLR FEEDER NO-I CB,CT ONLY Monthly mtce work 1)During the LC period Upper Aliyar SS will be fed from Sholayar PH. Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 16:00 1 Approved

890 Erode 59616 230 KV For monthly maintenance works. Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

891 Chennai 59639 110 KV For monthly maintenance works Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

892 Erode 59655 230 KV 230KV Hosur Feeder Monthly maintenance work During the LC period other 230KV feeders will be in service. Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

893 Chennai 59689 110 KV 110 KV Villupuram - Thirukoilur # Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 16:00 1 Approved

894 Erode 59784 230 KV For Monthly maintenance work Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

895 Erode 59785 230 KV 230 TBC/BC BREAKER Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Idle CB Approved

896 Erode 59786 110 KV 110KV Annur SS total shut down Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Annur TSD Approved



899 Madurai 59798 230 KV For monthly maintenance work. POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 13:00 1 Approved

900 Chennai 59842 110 KV Athipet Lines 11KV Manali - Metro Water All other feeder in service. Possible Fri, 18/Aug/2017 8:00 Fri, 18/Aug/2017 18:00 1 Approved

901 Chennai 59885 230 KV 230KV Thiruvalam Feeder Breaker & CTs only For monhly maintenance work Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Approved


903 Chennai 59920 230 KV 230 KV THIRUVALAM FEDEER LINE LC 230 KV THIRUVLAM TOTAL SHUTDOWN WORK Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 Approved

904 Chennai 59940 230 KV 230KV Thiruvalam - Chittoor feeder entire For EHT Line Maintenance Works Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

905 Erode 59962 110 KV 110 KV Link II # Breaker and CTs & line isolators Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 16:00 1 #1 will cater the load Approved

906 Chennai 59997 230 KV i)For Monthly Maintenance Works Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 15:00 1 Approved

907 Erode 58788 400 KV Salem 400 KV monthly maintenance work repeat Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 p-id 58786 Repeat

908 Erode 58761 110 KV INGUR 230 KV 110 KV Railway traction I # entire no ss will be affected during LC period Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 14:00 1 #2 cater the load Approved

909 Erode 60007 110 KV Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 15:00 1 #1 will cater the load Approved

910 Madurai 58820 110 KV MONTHLY MAINTENANCE WORK NOT POSSIBLE Fri, 18/Aug/2017 10:00 Fri, 18/Aug/2017 16:00 1 DUE TO WIND GEN Not Approved

911 Erode 60023 110 KV 110KV Unjanai-Sankagiri# line entire PMI and Jumper tightness checking Sankagiri SS Total shutdown Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Sub to Sankagiri TSD Approved SGC

912 Erode 60075 230 KV Auto transformer.NoII , HV.II, LV.II Monthly maintenance Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Sub to Auto load Approved

913 Erode 60093 110 KV 110 KV Thevur # CT, Breaker and Switches For monthly maintenance Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

914 Erode 60094 230 KV For monthly maintenance Auto Transformer -II will manage the load Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Auto trf 2 cater the load Approved

915 Erode 58786 400 KV Salem 400 KV monthly maintenance work Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

916 Erode 58790 230 KV Salem 400 KV monthly maintenance work Both end Monthly Maintenance Work Possible Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved SGC

917 Madurai 58801 230 KV For monthly maintenance work No SS Will be affected, Both end Programmed POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved SGC

918 Madurai 58868 230 KV 230KV Thiruvarur - PPN feeder POSSIBLE Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

ARASUR 230 KV

110KV Capacitor bank-II breaker and CTs and cell units.


PONNAPURAM 230 KV

110 KV Thungavi # Breaker & CTs & line upto Thungavi SS

1. Subject to the wind generation, Thungavi SS G.C-II will be transferred to 230KV Udt SS / 110KV Poolavadi #,2. Hence No SS will be affected.

Wind gen transfer not feasible


A)AUTO TRANSFORMER-I, HV-I, LV-I BREAKERS AND CT's. B) 110KV NEMMELI THIPPIYAKUDI-PUDUKKOTTAI FEEDER BREAKER, CT's AND LINE ISOLATOR.(NOW RADIAL FROM 230KV NEMMELI THIPPIYAKUDI SS TO 110KV KARAMBAKUDI SS) ONE AFTER ANOTHER.

A) FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/N T KUDI. B) FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/N T KUDI.

1) DURING THE LC PERIOD, 110/11KV URANIPURAM SS, 110KV KARAMBAKUDI SS WILL AVAIL TOTAL SHUTDOWN 2) AUTO TRANSFORMER-II IN SERVICE. 3) IF NECESSARY 110KV N T KUDI-THANJAVUR FEEDER TIE WILL BE OPENED AT 230KV NT KUDI SS. 4) NO INTERRUPTION TO ANY SS AND ALL OTHER FEEDERS ARE TIED CONDITION.


For line mtc works & attending premonsoon remarks

During the LC period the line will be under no supply condition, since both end programmed to avail LC

SUB TO LOAD CONDITION.LC MAY BE RESTRICTED TO 09.00 TO 14.00 HRS ONLY ALONG WITH 230 KV BUS ENTIRE LC

ALIYAR 230 KV

Sub to Sholayar PH1 & 2 gen


Auto-II, HV & LV-II CBs, CTs, LASs & 230KV Switches.

During LC period110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder.110KV Rasipuram SS will be transferred to 110KV Salem-Mallur feeder.110KV Namakkal SS will be transferred to 110KV Valayapatty feeder from 230KV Valayapatty SS.No supply interruption.

Sub to Sendamangalam and KN Patty load transfer

CUDDALORE 230 KV

110 KV Cuddalore - Nathapattu # breaker with CT’s and Line side isolator.

The 110 KV Nathapattu SS will be availing total shutdown. And 110 KV Semmandalam SS load will be transferred to the 110 KV Cuddalore – Chitrasur Feeder. Hence no interruption of supply.

METTUR AUTO 230 KV

Kempatty & Uddanapally availing TSD at Hosur

VILLUPURAM 230 KV

For replacement of weak insulators at location No. 6 off Karanaiperichanur LILO

1.) The 110 KV line between Villupuram and Thirukoilur will be kept off.2.) The feeder will be radial from Deviyakuruchi end up to Thirukoilur.3.) 110 KV Karanaiperichanur and Ariyalur sub-stations availing total shutdown. No interruption of supply to any SS.

KARUVALUR 230 KV

230/110 KV Auto transformer I ,HV,LV BKR,CTs and LAS

110KV Annur SS and Sellappam palayam SS total shut down and 110kV Thekkalur feeder kept radial from 230kV Karuvalur SS upto 110KV Padhuvampalli SS.110kV Avinashi SS and 110kV Vanjipalayam SS fed from 230kV Arasur SS(110kV Arasur I # will be kept radial from 230kV Arasur).

Annur & Sellappampalayam TSD

KARUVALUR 230 KV


All 230kV Feeders will be in 230kV BUS II and 230kV BUS I will be ideal

KARUVALUR 230 KV

110 Kv Karuvalur -Annur feeder Breaker,CTs and line side isolator.

For Monthly maintenance work and lines work

KARUVALUR 230 KV

110 KV Karuvalur-Arasur II feeder breaker , CT's, LAS and line section between 110kV Paduvampalli and 110kv Sellappampalayam upto 230kV Arasur SS

For Monthly maintenance work,lines work and to attend 110KV GC1 & GC2 incomming isolator & Earth switches alignment at 110KV side of 110/33-11KV SS Sellappampalayam by AE/SS/Sellappaalayam.

110KV Sellapapam palayam SS total shut down and 110kV Thekkalur feeder to be kept radial from 230kV Karuvalur SS upto 110KV Padhuvampalli SS feeding 110kv Thekkalur,KPR(EHT),110kV KVLR SS and 110kV Paduvampalli SS.

Sellappampalayam TSD and other inter loads fed from ASR

TRICHY 230 KV

110KV Trichy – Srirangam feeder Breaker, CTs, line isolator and line portion between 230KV Trichy SS and 110KV Kambarasampettai SS only.

For a) Monthly Maintenance works b) Premonsoon inspection.

During the LC period, a) 110KV Trichy-Srirangam feeder will be radially fed from 230kv samayapuram SS upto 110KV Kambarasampettai SS. b) All other 110KV feeders are in tied condition. c) there will be no interruption of supply to any other feeder and SS. d) Necessary concurrence obtained from other 230KV Samayapuram SS end.


ANUPPANKULAM 230 KV

230 KV Anuppankulam - Kayathar feeder Br., CT., and Line switch only.

During the LC period, the other end also availing LC on the same date. Hence no ss will be affected.


Jumper tightness & tower to tower inspection.

MOSUR 230 KV

230KV Alamahty and 230KV Ahtipattu Feeder are in service.Hence there will be no interruption of supply please.


1.110KV Vellichandai feeder breaker, CTs,Line switch2. Auto Transformer - I with HV-I Breaker, CTs & LV-I Breaker CTs, Auto I Transfer Switch 3. 230 KV TBC ( Bus Coupler) Breaker with isolators for Transfer Switch maintenance Purpose.

Carryout Monthly SS Maintenance works by maintenance wing.

110 KV Vellichandai SS,110 KV Pennagaram SS availing Total Shutdown Total Relief : 25 MW, the Station load will Managed by keeping Auto Transformer II & III, 230 KV Shoolagiri and Mettur feeder and also 1 No Grid feeder in service.

Vellichandai & Pennagaram TSD and other Auto cater the load

MOSUR 230 KVTHIRUVALAM 230 KV

During the period of LC i. 230KV Thiruvalam â€“ Chittoor feeder Breakers both end will be in â€œ OFFâ€ condition at 230KV �Thiruvalam & 220KV Chittoor SS. ii. All other 230 KV feeders 230KV Link II, Mosur, Link I feeders are in service.Hence there will be no interruption of supply please.


SINGARAPET 230 KV



THIRUVALAM 230 KV

i)On 230KV Chittoor interstate feeder Breakers and its CTâ€™s and Line Isolators

During the period of LC i) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS Loads.ii) The 230KV Chittoor Interstate feeder will be in â€˜OFFâ€™ Condition iii) The 230KV Link-II, 230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.


400 / 230 KV ICT â€“ II HV & LV SIDE,LAS, CTs, BREAKERS, JUMPERS & SWITCHES

During 400/230 KV Auto Transformer II LC Period, 400/230 KV Auto Transformer I will be in Service Condition. Hence there will be no interruption of supply.

Takeoff tower and cut point jumpers tightening work attended by ae/lines /ingur wing

Singarapet 110 KV

110KV LINK # II BREAKERS, CT'S AND LINE SIDE ISOLATORS.


DURING THE LC PERIOD,1) 110KV LINK # II BOTHE END HAND TRIP CONDITION AND 110KV LINK I # TIED AT BOTH END.2) HENCE, THERE IS NO INTERRUPTION OF POWER SUPPLY.

KANARPATTY 400 KV

110KV ALANKULAM FEEDER BREAKER WITH CT

THE FEEDER WILL BE RADIALLY FED FROM 230KV KODIKURICHI SS, NO SS AFFECTED

UNJANAI 230 KVUDUMALPET 230 KV



110 KV Thevur and Pallakapalayam both SS availing Total shutdown on that day

Thevur & Pallakapalayam TSD


Auto Transformer I HV and LC side - Entire Transformer,LAS, CT, Breaker and switches

400 / 230 KV ICT II HV & LV SIDE,LAS, CTs, BREAKERS, JUMPERS & SWITCHES

During 400/230 KV Auto Transformer II LC Period, 400/230 KV Auto Transformer I will be in Service Condition. Hence there will be no interruption of supply.

Sub to load and approved vide Sl No 148 in 133rd OCC

230 KV UNJANAI # CT, BREAKER, BUS & LINE SWITCHES

Sub to 230 KV DKY-TAQA # tie, other wise 230 KV PSI-PGLR # will be over load


On 230 KV TTN -Kayathar feeder breaker with CT bus and line side switches


THIRUVARUR 230 KV






NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

919 Erode 110 KV 110KVKempatty feeder breaker Monthly Maintenance work Possible Fri, 18/Aug/2017 0.375 Fri, 18/Aug/2017 0.58333 1 Kempatty TSD Approved

920 Erode 110 KV 110KV Uddanapally feeder breaker Monthly Maintenance work Possible Fri, 18/Aug/2017 0.375 Fri, 18/Aug/2017 0.58333 1 Uddanapalli TSD Approved

921 Erode 230 KV 230KV Mettur feeder breaker Monthly Maintenance work Possible Fri, 18/Aug/2017 0.375 Fri, 18/Aug/2017 0.58333 1 Approved

922 Erode 230 KV 230/110KV Auto Transformer -3 Monthly Maintenance work Possible Fri, 18/Aug/2017 0.375 Fri, 18/Aug/2017 0.58333 1 Approved

923 Madurai 59312 230 KV 230KV SBT - Myvadi # Bkr, CTs and line entire Fri, 18/Aug/2017 9:00 Fri, 18/Aug/2017 17:00 1 Approved

924 Erode 59014 230 KV monthly maintenance work Other end also availing LC Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

925 Erode 58778 230 KV Salem 400 KV monthly maintenance work Both end Monthly Maintenance Work Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

926 Erode 58545 230 KV Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 18:00 1 Postponed

927 Madurai 58556 230 KV 230KV feeder breaker only(Bay202) No interruption of power supply since feeder not comissioned Sat, 19/Aug/2017 10:00 Sat, 19/Aug/2017 14:00 1 Wrong entry

928 Madurai 58578 110 KV PAPANASAM 110KV PPM-KYTR feeder breaker with CT. NOT POSSIBLE Sat, 19/Aug/2017 10:00 Sat, 19/Aug/2017 12:00 1 DUE TO WIND GEN Not Approved

929 Erode 58908 230 KV Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Postponed

930 Erode 58963 110 KV Salem 400 KV monthly maintenance work repeat Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 p-id 59044 Repeat

931 Madurai 58885 110 KV 110KV Servalar- Papanasam feeder- I POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 15:00 1 Approved

932 Chennai 58914 230 KV 230/110 kv ,100 MVA Auto Transformer -I Possible Sat, 19/Aug/2017 5:00 Sat, 19/Aug/2017 10:00 1 Approved

933 Madurai 58932 230 KV 230KV BUS - I 230KV BUS - I maintenance work. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

934 Chennai 58942 230 KV 100MVA Auto Transformer-I Maintenance Work Possible Sat, 19/Aug/2017 10:00 Sat, 19/Aug/2017 17:00 1 Approved

935 Madurai 58953 110 KV For monthly maintenance work POSSIBLE Sat, 19/Aug/2017 10:00 Sat, 19/Aug/2017 14:00 1 Approved

936 Chennai 58671 110 KV 110 KV Echur - Vandavasi # Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

937 Madurai 58962 230 KV On 230KV TTPS-Kayathar-II feeder entire For Tower to Tower Inspection work. No ss will be affected. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC

938 Erode 59146 230 KV Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Incomplete Wrong entry

939 Madurai 59150 110 KV For monthly maintenance purpose. NOT POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

940 Madurai 58982 110 KV For monthly maintenance works. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

941 Erode 59017 230 KV monthly maintenance work 110KV Erode SS availing total shutdown Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Sub to Auto load Approved

942 Chennai 59034 230 KV 100 MVA Auto Transformer - 3. Routine Maintenance Works. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 13:00 1 Approved

943 Erode 59044 110 KV Salem 400 KV Monthly maintenance work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC

944 Chennai 59045 230 KV 100 MVA AUTO TR.II Monthly maintenance work 110 kv s p koil # and korattur-I Radial from other end Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 12:00 1 Approved

945 Erode 59085 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Sub to load Approved

946 Erode 59089 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Sub to Auto load Approved

947 Erode 59107 110 KV Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved SGC

948 Erode 59120 110 KV INGUR 230 KV 110 KV Erode – Elumathur # entire Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Kaspapettai TSd Approved SGC

949 Madurai 59132 230 KV For Monthly Maintenance Work. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved


951 Madurai 59176 110 KV 110kv RNPM-SBT II # Breaker,CT and relay 1)Monthly maintenance2)Relay testing POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved


953 Erode 59198 PYKARA UNIT 5 For monthly maintenance work NIL Possible Sat, 19/Aug/2017 8:00 Sat, 19/Aug/2017 17:00 1 Unit 5 under standby Approved


955 Chennai 59207 230 KV 230kv Kalivanthapattu Feeder Maintenance work Other Four 230kv Feeders will be in service Possible Sat, 19/Aug/2017 5:00 Sat, 19/Aug/2017 10:00 1 Approved

956 Madurai 59242 110 KV 110 KV SRP-KDR II # section between SRP-TKY Tree clearance work POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1

957 Chennai 59390 230 KV ARNI 230 KV For Monthly Maintenance work. To be discuss Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC


959 Chennai 59277 110 KV Monthly maintenance work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 15:00 1 Approved

HOSUR 230 kV HOSUR 230 kV HOSUR 230 kV

230 KV Soolagiri # will cater the load

HOSUR 230 kV


SEMBATTY 230 KV

1. Monthly maintenance work 2. tree clearance work.

During the LC period, other end also availing LC and no Load relief required.


THINGALUR 230 KV

230KV KR Thoppur feeder Breaker and CTs with line Isolator.

110 KV BPH3-BPH4 # LC

230 KV THINGALUR # CT, BREAKER, BUS & LINE SWITCHES

110 KV BPH3-BPH4 # LC

THUDIALUR 230 KV

1.230 KV TDLR-OKM feeder entire line & Br & CTs2. 230 KV OKM Feeder Breaker & CTs3. 230 KV OKM feeder control panel(for Relay Replacement works)

1. PMI works2. Numarical Relay Replacement work by P&C /TDLR3. Monthly Mtce Works

1. Other 230 KV feeder share the loads2. 110 KV BUS BAR PROTECTION WILL BE KEPT OFF

175 MW Imp at TDLR and 230 KV OKM-CBE # will be over load

kumbakonam 230 KV

Monthly Maintenance of feeder breaker and isolator(line side)110KV PPM-KYTR feeder breaker with CT maintenance work.

Present PWD demand is 250 CUSECS. During the LC period the feeder will be radial from other end.


230 KV OKM-Thudiyalur Feeder (Breaker, CT's, 89M1, 89M2 & 89L Isolators) Line entire

For monthly maintenance works and PMI works by Lines/TDLR wing.

During the LC period, the other 230 KV feeders are in service to cater the ss loads.


110 KV SALEM II #,CT, BREAKER, BUS & LINE SWITCHES

During LC Period, 110 KV Karuppur SS will be avail total shut down on 31.08.2017.

ACHRAPAKKAM 230 KV

Tree clearance work at various location feeder -I

1.110 KV Papanasam-Servalar Feeder â€“II will be service 2. 110 KV isolator towards Papanasam will be kept opened in Servalar and 110 KV isolator towards Servalar will be kept opened in Papanasam. Hence no SS will be affected

MYLAPORE 230 KV

For attending Monthly Maintenance Work by JE / Mtce / 230 /110 KV GIS SS Mylapore

During the above shutdown period 100 MVA Auto Transformer I will not be in service , the load may be restricted within the capacity of 100 MVA Auto Transformer -II


THIRUVARUR 230 KV

During the LC period 230KV BUS - II will be in service. Hence there will be no interruption of supply to any other SS.

SIRUSERI 230 KV

DURING THE PERIOD OF SHUTDOWN1)100MVA Auto Transformer-I will not be inservice.2)110KV Sholinganallur SS load will be transferred to 230KV KITS Park SS. 3)110KV Bus coupler Breaker will be in closed condition.

PERAMBALUR 230 KV

110KV Perambalur-Koothur feeder(Ariyalur) Breaker CT's only

During the above period of shut down i)110KV Perambalur-Koothur Feeder Radilay fed from 230KV Poyyur SS. ii)There will be no interruption to any other SS/EHT Consumer


ECHUR 230 KV

Monthly Maintenance work carried in all Cts and isolators in 110 KV Echur - Vandavasi #.

110 KV Echur - Vandavasi #At the time of LC1.110 KV Echur - Vandavsi # the 110 KV Echur - Vandavasi # Bkr will be HT and isolators are kept open, and Load transferred to 230 KV Acharapakkam SS. After completion of Work, 110 KV Echur - Vandavasi # Bkr will be charged and isolators are kept closed. Hence no interruption to the substation



GURUPARAPALLI 230 KV

HV-I breaker, Auto-I, LV-I breaker, 110KV Karimangalam breaker, HV-II breaker, Auto-II, LV-II breaker

Monthly maintenance works in Auto-I & II, HV-I & II and LV-I & II and 110KV Karimangalam feeder simultaneously

1. HV-I breaker, Auto-I, LV-I breaker and Karimangalam 110KV feeder breaker to be hand tripped. BS / LS isolators to be opened. 2. HV-II breaker, Auto-II, LV-II breaker to be hand tripped. BS / LS isolators to be opened. 3. LC should be availed one by one in Auto I & II.

SANKANERI 230 KV

110KV Sankaner- koodankulam feeder Breaker CTs & Lineswitches.

During the LC Period 110KV Vijayapathi SS Supply Radially Fed From SR Puthoor Arumuganeri Feeder-II by Closing BUS Coupler Switch-II at Koodankulam SS.


On 110KV Sipcot-TTN-III feeder breaker with CTs and line isolators only.

During the L.C period, the 110KV Town SS will be in shutdown condition and no other SS will be affected.

THINGALUR 230 KV

Auto Transformer II,HV II & LV II Breakers with CTs.

TONDIARPET 230 KV

During the period of shutdown,Except 100 MVA Auto Transformer-3 will not be in service and all other feeders and equipments will be in service.

110KV SALEM-II Feeder CT,BREAKER,BUS&LINE SWITCHES

During LC Period, 110 KV Hasthampatty SS will be avail total shut down on 19.08.2017.

Sub to Hasthampatty TSD

KADAPPERI 230 KV

110KV Kurukathi # I Breaker, CTs, ,Isolators and Line side IsolatorAutotransformer II and its HV & LV I Breakers with CT’s and Isolators

1.KANGEYAM TOTAL SHUTDOWN ON THAT DAY2.DEPENDING UPON LOAD CONDITION

THUDIALUR 230 KV

110 KV Thudialur Sandinallah feeder section between 110 KV Marudhur SS and 110 KV Jagathala SS

for PMI works in JAGATHALA SPUR LINE LOC 01-21

DURING THE LC PERIOD 110KV KOTHAGIRI & KATTABETTU SS WILL BE FED FROM 110KV METTUPALAYAM-MATHAMPALAYAM #During the LC Period 110 KV Jagathala SS under total Shutdown

Jegathala TSD, Kothagiri & Kattabettu trf to Pykara-BB1 #

for jumper tightness work at tower loc No:5 & 6

1.No SS will be affected during the above LC Period. 2.110 KV Kaspapettai SS has programmed total shutdown on 19.08.2017 3.110 KV Elumathur SS supply will be fed from Pugalur 230 KV SS.

PUGALUR 230 KV

Auto transformer II, HV II and LVII Breaker,CT's and LAS only.

During the L.C Period HVII and LV II are tripped condition. 110KV Mayanur & 110KV Panchapatty SS are proposed total shutdown. Load contain with in two auto transformer (I & III).There is no interruption to any SS.


KARAIKUDI 230 KV

On 1)110KV KKDI-DVKT # Bkr & Ct's 2)110KV KKDIDVKT # S/B KKDI-DVKT.

1)Monthly Mtc Work2)Tower to Tower Inspection work.

During the Lc period 110KV Sakkavayal SS Under TSD & 110KV DVKT Load will be Transferred to 110KV KKDI-TVNI-VLDR #.


During LC period the feeder will be radially fed from SBT end intermediate SS 110kv Angunagar SS avail total shutdown load relief 33MW. Hence no interruption to any SS.


ORAGADAM 230 KV

100 MVA Auto Trs. I,II &III one by one, 110/33KV Pr. Tr. I&II, 110/11KV Pr. Tr.I,II & III, 110KV GC & All 11KV feeders

Monthly Maintenance of AutoTr's HV & LV Breakers, CT's & Isolators, Power transformers, GC, HV, LV, 33KV & 11KV feeder Breakers

i) Auto Tr. LC will be taken one by one, ii) All 230Kv & 110KV feeders will be in service, iii) Kadaperi # to to be radially fed from 230KV Kadaperi SS, iv) If, necessary, 110KV Singaperumal Kovilfeeder-I will be radially fed from 230KV Singaperumal koil SS.

GENERATING STATIONS

KAYATHAR 230 KV

230KV KAYATHAR-TTPS-II FEEDER BREAKER WITH C.T & ENTIRE LINE

a) For monthly maintenance work, b) Lines inspection & DETCTING THE BREAKAGE & SPLICING WORK ON OPGW CAPLE



THARAMANI 230 KVSRPUDUR 230 KV

During the LC period the 110 KV SRP-KDR II # radial from KDR upto Parasalai SS (Incl). Hence no SS will be affected.

SUB TO LOAD CONDITION: CONCURRENCE FROM PSLA FOR BLINK

Subject to KSEB Concrrence for blink only

230 KV Arani-Singarapet # (Both End),230KV Breaker, CTâ€™s & Line Isolator

All other 4 Nos 230KV feeders will be in service.Hence no interruption of supply

PASUMALAI 230 KV

1)110 KV Pasumalai - Anupankulam # BKR & CT, LI only. 2) Line entire

1)Maintenance Works of BKr & CT,LI 2) Tree cutting works and T-T Inspection works

1) 110/33-11KV Virudhunagar will be under total shutdown 2) 110kv Railway traction loads and 110KV Aviyur SS loads will be transferred to 110KV Pasumalai - Thullukkapatti Feeder. 3) Hence No interruption of Supply to any SS



110 KV Tiruvannamalai-Kanji #, Breaker, CT's and Line Isolator

During the period of L/C time,1. 110 KV Kanji SS availing Total S/D,2. 110 KV Solar Generation and 110 KV Adhamangalam SS loads will be fed from 230 KV Arni SS. Hence there is no interruption of supply please.



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

960 Chennai 59281 110 KV 110 KV Bus section Breaker and CT's only Monthly maintenance work. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 15:00 1 Approved

961 Chennai 59283 230 KV Autotranformer-I, Breaker, CT'a and LAS Monthly maintenance work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

962 Chennai 59288 110 KV 110 KV Eastern Bus Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

963 Madurai 59313 230 KV 230 KV Checkanurani - Kinnimangalam feeder entire For MMW&LMW and P&C Work During LC Period there will be no supply in the entire feeder. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

964 Madurai 59497 230 KV 230KV Auto Tr, HV & LV BR. NOT POSSIBLE Sat, 19/Aug/2017 10:00 Sat, 19/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved






970 Chennai 59391 110 KV ARNI 230 KV For Monthly Maintenance work. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved


972 Madurai 59423 230 KV LINE MAINTENANCE WORKS POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 13:00 1 Approved


974 Erode 59460 110 KV Erode 110 KV Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC

975 Madurai 59479 110 KV tree clearence work. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 16:00 1 Approved

976 Madurai 59500 110 KV 110kv Radhapuram fdr,Br, CT only MONTHLY MAINTENANCE WORK POSSIBLE Sat, 19/Aug/2017 12:00 Sat, 19/Aug/2017 14:00 1 Approved

977 Erode 59510 110 KV 110KV K.R.Thoppur-I feeder Breakers and CT's Monthly maintenance work. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Traction Trf to #2 Approved

978 Erode 59731 110 KV 110KV Arasur-Thudialur breaker and CTs For monthly maintenance works. repeat Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 12:00 1 p-id 60092 Repeat

979 Chennai 59535 230 KV 100MVA Auto Transformer II Routine Maintenance work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved


981 Erode 59568 230 KV 230KV Myvadi- Sempatti # Breaker & CT line entire Both end Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Sub to load Approved



984 Madurai 59800 110 KV For monthly maintenance work. NOT POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 13:00 1 DUE TO WIND GEN Not Approved

985 Madurai 59600 110 KV then I 230 KV For monthly Mtce of entire Line During the LC 110 KV Rasinga puram SS under shut down POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

986 Erode 59827 PUSHEP unit 1 Need base maintenance works Unit I in Shut down condition Possible Sat, 19/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 3

987 Erode 59633 230 KV KUNDAH PH3 230 KV PH2 TO ARASUR FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Sat, 19/Aug/2017 8:00 Sat, 19/Aug/2017 17:00 1 Approved

988 Erode 59658 230 KV 100MVA Auto Transformer I Monthly maintenance work During the LC period 100MVA Auto Transformer II will be in service. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Sub to Auto load Approved


During the period of L/C time Autotransformer - I & II will be independently fed the station loads and there is no interruption of supply to any of the substation please.


During the period of L/C time,1. 110 KV Samuthiram SS and 110 KV Kanji SS availing total S/D,2. Autotransformer-I will be OFF condition,3. Autotransformer-II will be in service and cater the station loads. Hence there is no interruption of supply please.


Augmentation work, 110 KV LV-I Isolator replacement work (1250A-2000A Capacity)

During the period of L/C time,1. 110 KV Samuthiram SS and 110 KV Kanji SS availing total S/D,2. 110 KV Tiruvannamalai SS loads will be fed from 110 KV T.V.Malai-Villupuram #,3. 110 KV Adhamangalam SS and 110 KV Soalr Generation will be fed from 230 KV Arni SS,4. Autotransformer-I will be OFF condition and Autotransformer-II will be in service and cater the station loads. Hence there is no interruption of supply please.



UDAYATHUR 230 KV

1.Maintenance work of Auto.Tr. (2)ANNUAL RELAY TEST by GRT wing /SR.Pudur

1. During thE LC period the 110kv Radhapuram SS is proposed to take Total SD on 19.08.2017.from 09.00 to 17.00hrs. (If 110kv Radapuram not taken Lc the ss willbe fed from 110kv Sankaneri -Udayathoor feeder of Sankaneri ss) 2) 110kv Navaladi SS& 110kv Samugarengapuram 10 (1) SS suzlon SS.willbe fed from 110kv Sankaneri -Udayathoor feeder of Sankaneri ss.

PALLADAM 230 KV

110 KV PALLADAM-VEERAPANDY # Breaker,CT's and Line side isolator


During LC period 1). 110 KV Veerapandy SS availing Total shut down2) 110 KV Naranapuram SS will be fed from 230 KV Arasur SS3) No other SS will be affected

Veerapandy TSd and Naranapuram trf to ASR

PALLADAM 230 KV

110 KV Middle Bus ( Auto Transformer II, Veerapandy #, 110 KV Santhaipet #)

To carrtout Half yearly maintenance work on 110 KV Middle bus section and shifting of 110 KV PT -II work to be carried out by AEE/Maintenance/Palladam

During LC period 1).110 KV Veerapandy SS, 110 KV Santhaipet,110 KV Arulpuram SS are availing Total shut down2). 110 KV Palladam and 110 KV Elavanthy feeders will be fed through 110 KV Southern Bus with Auto Transformer I3). 110 KV Sipcot II and 110 KIV Tiruppur feeders will be fed through 110 KV Northern Bus with Auto Transformer III & IV4), 110 KV Veerapady #, 110 KV Santhaipet # and Auto Transformer II will be in LC

Veerapandy, Sandaipettai & Arulpuram TSD and sub to equal division of load

PALLADAM 230 KV

230 KV PALLADAM -PGCIL # Breaker,CT's and Line side isolator


During LC period 1). Other 3 Nos 230 KV Feeders will be in service2). 110 Veerapady SS,110 Santhaipet SS and 110 KV Arulpuram SS availing Total shut down3). No other SS will be affected 4). OCC approval obtained


PALLADAM 230 KV

110 KV PALLADAM-SANTHAIPET# Breaker,CT's and Line side isolator

To carry out monthly maintenance by AEE/Maintenance/palladam

During LC period 1).110 KV Santhaipet and 110 KV Arulpuram SS availing Total Shutdown2) No other SS will be affected

Sandaipettai & Arulpuram TSD

SAMAYAPURAM 230 KV

230KV SMPM-POYYUR # Breaker,CT's , Line Isolators and entire line portion.

Monthly Maintenance work, line Patrol work by AE/Lines/Kallakudy.

1.During the above Shutdown Period 230KV SMPM SS will be radial from 230KV TRICHY SS . 2.Other end Poyyur SS also availing LC on that day. 3.Concurrence obtained from Trichy Auto SS 4. No interruption to any other 110 KV SS.


110 KV Arani Link #,110KV Breaker, CTâ€™s & Line Isolator.

110KV Arani SS availing Total Shut Down.Hence no interruption of supply.

230/110KV Auto Transformer II,230KV Bus selection Isolators, Breaker, CTâ€™s & incoming ,out going isolators.

Auto transformer I and III are in service. 110KV Arani SS (40 MW) availing Total SD.Hence no interruption of supply.

KAVANOOR 230 KV

110 KV KAVANOOR-KAMUTHI # SEC. BET. KAVANOOR & KAMUTHI (INCLUDING KADALADI SPUR LINE)

FEEDER TO BE KEPT RADIAL FROM KAMUTHI 400 KV SS TO KAMUTHI 110 KV SS INCLUDING KAMUTHI, TAMILPADI. KADALADI TO BE UNDER TOTAL SHUTDOWN


KAVANOOR 230 KV

110 KV KAVANOOR-KAMUTHI # SEC. BET. KAMUTHI 110 KV SS TO TAMILPADI 110 KV SS

FEEDER TO BE KEPT TIED BET. KVNR & KMTHI 400 KV SS. SEC. BET. KMTHI TO TMPDI WILL BE UNDER LC. TAMILPADI SS LOADS TO BE TRD. TO ANPKM FEEDING OR TAMILPADI SS TO BE UNDER TOTAL SHUTDOWN


1.ENTIRE 110 KV TOP AND BOTTOM BUS2.ALL 110 KV FEEDER BREAKERS AND ITS CTS AND 110 KV CAPACITOR BANK

1.MONTHLY MAINTENANACE OF ALL 110 KV BUS ISOLATORS AND POWER TRANSFORMERS 2.ALTERNATE ARRANGEMENT FOR SEPARATION OF GCI AND GCII EXECUTION WORK3.MONTHLY MAINTENACE WORK

DURING LC PERIOD 1. 110 KV ERODE SS AND 110 KV KASPAPETTAI SS WILL BE UNDER TOTAL SHUTDOWN2.ALL OTHER FEEDERS KEPT IN BACK CHARGED CONDITION

Erode & Kaspapettai TSD

ALAGARKOIL 230 KV

110KV ALKL-Sempatty I # section between Manickampatty SS &Samayanallur SS.

feeder will be radial from ALKL upto Manickampatty SS &feeder will be radial from sempatty upto samayanallurSS.


UDAYATHUR 230 KV

1. During the LC period the 110kv Radhapuram SS is proposed to take Total SD on 19.05.2017.from 09.00 to 17.00hrs.

SUB TO TOTAL S/D AND GRID CONDITION

SALEM AUTO 230 KV

1. 110KV K.R.Thoppur-I feeder will be radially fed from other end or Railway traction SS will be fed from 110KV K.R.Thoppur-II feeder. 2. There will be no interruption to any SS or feeder.

ARASUR 230 KV

During the L.C period, The feeder will be radial from 230 KV Thudialur SS.

KILPAUK 230 KV

During the period of shutdown 1) 100MVA Auto Transformer I will be inservice. 2)110KV AnnaNagar feeder loads to be transferred to 230KV Korattur SS feeding 3)110KV Cooks Road feeder tie to be opened at kilpauk SS end and Cooks Road SS will be radially fed by BBGTPS.

PUDUKOTTAI 230 KV

AUTO II, HVII, LVII AND 110 KV ADHANAKKOTTAI FEEDER LINE PORTION BETWEEN 230 KV SS AND MALAIYUR SS.

AUTO II, HVII, LVII, BREAKER, ISOLATORS AND EHT LINES MAINTENANCE AND GRT TESTING WORKS.

110 KV ADHANAKKOTTAI SS, 110 KV GANDARVAKOTTAI SS AND 110 KV MALAIYUR SS IN 110 KV ADHANAKKOTTAI FEEDER AVAILING TOTAL SHUT DOWN. 110 KV ALIYANALAI SS IN 110 KV ALANGUDY EID PARRY FEEDER AVAILING TOTAL SHUT DOWN. 110 KV SIPCOT SS, IN 110 KV SIPCOT FEEDER ALSO AVAILING TOTAL SHUT DOWN. 110 KV SUPPLY FOR VADAKADU SS IS TO BE BACK FED THROUGH 110 KV ALANGUDY EID PARRY FEEDER AND HENCE THERE WILL BE NO INTERRUPTION OF SUPPLY TO ANY SS.


Udumalpet 400 KV


ALUNDUR 230 KV

110KV Alundur - Thanjavur Feeder breaker,CT's, and Isolators. ( Alundur end only)

a) Preventive Monthly maintenance work. b) Premonsoon inspection and Tree cutting work. c)Relay testing work.

During the LC period, a) Intermediate 110KV Thuvakudi SS load Relief 12.7 MW & 110KV Thiruverumbur SS load Relief 7.5MW also avail total shut down. b) All other 110 KV feeders will be in service c)There will be no interruption of supply to any other feeder's and ss.



A) 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-I FEEDER BREAKER, CT's AND LINE ISOLATOR. B) 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-I FEEDER ENTIRE.C)AUTO TRANSFORMER-II, HV-II, LV-II BREAKERS AND CT's

A) FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/NEMMELI THIPPIYAKUDI AND ANNUAL RELAY TESTING BY P&C WING THANJAVURB) PREMONSOON INSPECTION WORK BY AE/LINES/PATTUKKOTTAI.C) FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/N T KUDI AND ANNUAL RELAY TESTING BY P&C WING THANJAVUR

1) DURING THE LC PERIOD 110KV PATTUKKOTTAI, PATTUKKOTTAI URBAN SS WILL AVAIL TOTAL SHUTDOWN. 2) DURING THE LC PERIOD 110KV PERAVURANI, SETHUBAVACHITRAM AND KEERAMANGALAM SS WILL BE FED FROM 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-II FEEDER. 3) NO INTERRUPTION TO ANY OTHER SUBSTATIONS AND ALL OTHER 110KV FEEDERS ARE TIED CONDITION. 4) If necessary, 110KV Kovilkalappal-Madukkur-Pattukkottai tie will be created (by closing the 110KV Line Isolator (switch No.2) at 110KV Madukkur SS and 110KV Madukkur feeder Breaker hand tripped condition at 230KV N T Kudi SS. 5) AUTO TRANSFORMER-I in service.


ANUPPANKULAM 230 KV

110 KV Anuppankulam - Kayathar feeder Br., CT. and Line Switch only.

During the LC period the 110 KV Kovilpatti SS under total shut down and 110 KV Duraisamipuram SS will be radially fed from Kayathar SS end. Hence no SS will be affected.

110 KV Theni –Rasingapuram # Breaker with CT & line

SUB TO WIND GEN AND CONCURRENCE FROM WIND GENERATORS

GENERATING STATIONS

3 Days LC, Sub to inflow and other units availability



METTUR AUTO 230 KV



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

989 Chennai 59688 110 KV 110 KV Panruti Spur Line 110 KV Villupuram TSD -so load releif Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

990 Chennai 59694 110 KV 110KV Villupuram – Thayanur # Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

991 Chennai 59728 110 KV 110KV GC Breaker 1. Villupuram 110KV SS is availing total shut down. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

992 Erode 59742 230 KV 230 KV Bus coupler breaker & Isolators. During the LC period no SS will be affected. Possible Sat, 19/Aug/2017 10:00 Sat, 19/Aug/2017 17:00 1 Idle CB Approved

993 Erode 59788 230 KV 230kV SUZLON EHT will be under Shutdown Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved

994 Chennai 58735 110 KV Monthly Maintenance Monthly Maintenance (Concurrence obtained from M/S Infosys) Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1

995 Erode 59789 230 KV 230 TBC/BC BREAKER and 230 KV Bus 1 All 230kV Feedrs will be in 230kv BUS II and 230kV Bus I will be ideal Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved

996 Madurai 59799 110 KV 110 KV APKM - PPTY # Br., CT., and line only For monthly maintenance work. POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 13:00 1 SUB TO TOTAL S/D Approved SGC

997 Chennai 59942 230 KV 230KV Thiruvalam - Link II feeder. For EHT Line Maintenance Works. To be discuss Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC


999 Chennai 59841 110 KV 110 KV Ko-Poovanur feeder 110 KV Ko-Poovanur feeder 110KV/11KV Ko.Poovanur SS Total shutdown maintenance work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1000 Chennai 59845 110 KV 110 KV Ko-Poovanur feeder 110 KV Ko-Poovanur feeder 110KV/11KV Ko.Poovanur SS Total shutdown maintenance work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1001 Madurai 59878 230 KV 230KV KNMLM – CKNI I # Entire Maintenance works of Breaker and CT POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1002 Chennai 59887 110 KV 110KV Sholinghur Feeder Breaker & CTs only for monthly maintenance work. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved

1003 Chennai 59998 230 KV i)For Monthly Maintenance Works To be discuss Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 15:00 1 Approved SGC

1004 Chennai 59889 110 KV 110KV Thiruthani Feeder Breaker & CTs only for monthly maintenance work. Possible Sat, 19/Aug/2017 0:00 Sat, 19/Aug/2017 0:00 1 Approved

1005 Chennai 59891 230 KV for monthly maintenance work. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved


1007 Erode 60095 110 KV 110 KV BKB-I # CT, Breaker For monthly maintenance Radially fed from other end Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1

1008 Erode 60104 230 KV 230 KV TDLR - OKM feeder Breaker and CTs Postponed Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 22:00 1 Postponed

1009 Chennai 59911 230 KV 1. Monthly Mtce Work2. Line Mtce Work Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1010 Chennai 59921 110 KV 110 KV SHOLINGHUR FEEDER LINE LC 110 KV SHOLINGHUR TOTAL SHUTDOWN WORK Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved


1012 Chennai 59922 110 KV 110 KV THIRUTHANI FEDEER LINE LC 110 KV THIRUTHANI TOTAL SHUTDOWN WORK Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Approved

1013 Madurai 59960 230 KV 230 KV Bus-Coupler breaker POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1014 Erode 59965 230 KV 230 KV Arani # Breaker and CTs& line isolators Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 16:00 1 Sub to load Approved

1015 Chennai 59984 110 KV 110 KV KTR-Kadaperri II feeder Jumper tightness at various location Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1016 Chennai 59985 110 KV 110 KV KTR-Kadaper II feeder Jumper tightness at various location Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1017 Madurai 58745 230 KV TTPS 230KV TTPS - KAYATHAR FEEDER II ENTIRE POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC




1021 Erode 60115 230 KV 230 KV Deviakurichi-Valaiyapatty Feeder jumper tightness work Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC

1022 Erode 58762 110 KV INGUR 230 KV 110 kv ingur-Erode II # entire Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 14:00 1 Sub to Erode TSD Approved SGC

1023 Erode 58804 230 KV Monthly maintenance 1.Monthly maintenance on 230 KV bus coupler,Breaker,CT,Isolators. Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Idle CB Approved

1024 Madurai 58808 110 KV On 110KV Northern Bus entire POSSIBLE Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved


1026 Erode 58844 230 KV For Monthly Maintenance work 230 KV Deviakurichy- STCMS & Singapuram Feeders will be in service Possible Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved SGC

1027 Chennai 110 KV GCC II Sat, 19/Aug/2017 9:00 Sat, 19/Aug/2017 17:00 1 Approved

1028 Erode 59659 230 KV KUNDAH PH3 230 KV BUS at PH3 Postponed Sun, 20/Aug/2017 8:00 Sun, 20/Aug/2017 17:00 1 Approved

1029 Chennai 58948 230 KV KITS 230 KV 100MVA Auto transformer III For monthly maintenance works Sun, 20/Aug/2017 10:00 Sun, 20/Aug/2017 17:00 1 Approved

CUDDALORE 230 KV

At Loc. 25 & 26 Railway crossing Jumper arc and Tightness checking.

VILLUPURAM 230 KV


1. Thayanur # H/T at Auto SS VPM. The feeder will be radial from Echur Auto SS. 2. Gingee SS availing Total shutdown. 3. Hence No interruption of supply to any SS.

Villapuram 110 KV



Annual relay testing work by P&C Palladam and monthly maintenance work.

KARUVALUR 230 KV

230 KV Karuvalur -Suzlon # Breaker,CTs LAS and its lines switch


Sub to SUZLON concurrence

VEERAPURAM 230 KV

110 KV Bus coupler – II ( Including Bus coupler , M/S. 110 KV Infosys # and 110 KV S.P.Koil # - II )

Concurrence from Infosys

Approved,Subject to Concurrence

KARUVALUR 230 KV


230 KV Bus 2 will be in service

ANUPPANKULAM 230 KV

During the LC period the 110 KV Paraipatty SS will be availing total shut down. Hence no SS will be affected.

THIRUVALAM 230 KV

During the period of LC i. 230KV Thiruvalam â€“ Link II feeder Breakers both end will be in â€œ OFFâ€ condition at 400KV �Thiruvalam & 230KV Thiruvalam SS. ii. All other 230 KV feeders 230KV Link I, Singarapet, S.P.Koil feeders are in service.Hence there will be no interruption of supply please.

ANUPPANKULAM 230 KV

110 KV APKM - MADURAI # Br., CT., and line switch only.

(a) For Monthly Maintenance Works. (b) For replacement of flash over disc at Loc. No. 5,14,15,22

During the LC period 110 KV Virudhunagar SS will be availing total shut down. 110 KV Aviyoor SS & Railway Traction SS load will be transferred to 110 KV PSQ - Thulukkapatti feeder. Hence no ss affected


Ulundurpet 230 KVUlundurpet 230 KVkinnimangalam 230 KV

EE/O/CKNI has also programmed Line LC. During the LC period there will be no supply in the entire feeder


MOSUR 230 KV

110KV Sholinghur SS and 110KV A.J.Pet SS Shut down Avail.Hence there will be no interruption of supply please.

THIRUVALAM 230 KV

i)On 230KV Link-II feeder Breakers and its CTâ€™s and Line Isolators

During the period of LC i) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS Loads.ii) The 230KV Link-II # will be in â€˜OFFâ€™ Conditioniii) The 230KV Chittoor Interstate feeder, 230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

MOSUR 230 KV

110KV thiruthani SS,110KV Poonimangadu SS & 110KV thiruvallur SS Shutdown Avail.Hence there will be no interruption of supply please.

MOSUR 230 KV

230/110KV Auto-II,HV-II,LV-II Feeder Breaker & CTs only

110KV Thiruthani,110KV A.J.Pet,110KV Sholinghur,110KV Poonimangadu,110KV Thiruvallur Total shutdown Avail.Hence there will be no interruption of supply please.


1.110 KV Gurubarapally feeder breaker,CTs, Line switch


1. It is Idle feeder hence there is no interruption of power supply. 2.110 KV Adhiyamankottai SS availing total shutdown expected Load relief 25 MW carryout monthlymaintenance work for their 110 KV SS End.

Krishnagiri fed from Guruparapalli


110 KV Erode - BKB 1 # LC


For replacement of protection relay by Numerical relay by P&C wing ThudialurAlready LC applied in PID No. 58545 for correction in closing time this LC applied

Other 230 KV feeders will share the loads.230 KV Bus bar protection will be kept off during final testing of relay by P&C wing in LC period


S.P.KOIL 230 KV

1.230 KV/110 KV ,100 MVA Auto Tr.IV 2. 230 KV Kalpakkam - Acharapakkam Fedder

1.Auto Tr. I & II Will be in service2.During period of shutdown, 230 KV S.P.Koil- kalpakkam -I & II , Echur feeders will be in service

1 Possible, 2.To be discuss

MOSUR 230 KVKODIKURICHY 230 KV

On 110KV Kodikurichi WF # breaker with CT and All isolators

MOSUR 230 KVTHANJAVUR 230 KV

For monthly maintenance works by the AEE/Mtce/Thanjavur

During the LC period,1) all 230 KV feeders will be in tied condition,2) 230 KV Bus-Coupler breaker is already kept in standby condition,3) no supply interruption to any SS.


SINGARAPET 230 KV



KORATTUR 230 KV

The 110 KV Nulumber ss fed from 110 KV KTR-Kadaperi I feeder,110 KV Sebrapakkam SS fed from 230 KV Kadaperi SS

KORATTUR 230 KV

The 110 KV Nulumber ss fed from 110 KV KTR-Kadaperi I feeder,110 KV Sebrapakkam SS fed from 230 KV Kadaperi SS

ANNUAL MAINTENANCE OF STRUNG BUS, WBCT, LAs & CVT AND RELAY TESTING WORK.

1. 230KV TTPS - KAYATHAR FEEDER II BREAKER TRIPPED CONDITION AT BOTH ENDS2. 29A & 29B ISULATORS KEPT OPEN CONDITION3. EARTH SWITCH SHOULD BE CLOSED CONDITION AT BOTH ENDS


Singarapet 110 KV

110KV POCHAMPALLI SIPCOT # SF6 BREAKERS, CT'S AND LINE SIDE ISOLATORS


DURING THE LC PERIOD,1) 110KV POCHAMPALLI SIPCOT # HAND TRIP AT SINGARAPET SS END 2) 110KV POCHAMPALLI SIPCOT SS AVAILING TOTAL SHUTDOWN.3) HENCE THERE IS NO INTERRUPTION OF SUPPLY.

Pochempalli Sipcot TSD


Auto Transformers No.II & 110 KV V.patty #, Tirupattur # breakers, CTâ€™s

For replacing the defective surge monitors in 230/110 KV LAS and for carrying out routine monthly maintenance works.

1,Total shutdown has been approved by CE/D/Vellore vide Memo. No.:CE/D/VLR/EE/AEE/Gl/ F. Shut down/ D. 337 /2017, Dt:22 .07.2017 2, SE/D/Tirupatture vide Memo.No:SE/TEDC/TPR/ Gen / AE / F.Shutdown/D.717/17, dt:24.07.2017.3, During the total shutdown period,there will be interruption of supply to the following sub stations 1) Chinnavarikkam,2) Pernambut,3) Paravakkal,4) Vaniyambadi,5) Alangayam ,6) Vinnamangalam (GC) SS

Chinnavarikkam, Pernambut, Paravakkal, Vaniyambadi, Alangayam, Vinnamangalam110 - TSD

ARASUR 230 KV

110 KV Arasur-Thudialur# breaker,CT'S ,Control and relay panels


During the L.C period,110 KV Arasur-Thudialur # will be radial from 230 KV Thudialur SS .

Inter loads fed from TDLR

DEVIAKURICHI 230 KV

1) The Deviakurichy 230KV SS availing Breaker, CT’s maintenances work .2) There will be no interruption any other SS.


110kv erode II line maintanance work(railway crossing tightning work)

no ss will be affected during LC period110 kv erode ss availing total shutdowm on 19/08/2017

SINGAPURAM 230 KV

230KV Transfer bus /230KV bus coupler breaker , CT and its


To provide addition jumper provided in Northern bus Arni-II & Sipcot - II feeder bay for strengthening the Northern bus

No SS will be affected . During the above LC period all 110KV radial feeders will be fed from 100 MVA Auto Transformer-II. 110KV Arni-I, II, Sipcot-I, II, & III will be kept in Off condition at Auto SS end and are radial from other end. 110KV Manjalneerkayal SS will be radialy fed from 110KV Arni-SS. 110KV Vagaikulam SS, 110KV Kombukaranatham SS and 110KV Town SS will be radily fed from 230KV Sipcot SS.


KAYATHAR 230 KV

230 KV Kayathar - TTPS II breaker with CT and GRT testing

a) For Monthly Maintenance workb) GRT annual relay and breaker testing works

During the LC period, other end also avails LC and there will be no supply in the entire line. Hence no ss affected.


DEVIAKURICHI 230 KV

230 KV Deviyakurichy – Valayapatty # Breaker, CTs, and Line side isolator both end


110 kV KITS - PERUMBAKKAM Slum Clearance Board SC line

Erection of 110 kV SC line on DC/MC from Ottiyambakkam to Perumbakkam Slum Clearance Board 110 kV SS in between tower location 3 and 4 of existing 110 kV KitsPark-Perumbakkam SCB #

Replacement of defective LAS as remarked by HOT LINES

All Units are shutdown condition; All feeders are open condition; MODS are open condition

To be scheduled on sunday

During the above shutdown period 100MVA Auto transformer I & 80MVA Auto transformer II will be in service feeding the entire KITS SS loads




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1030 Chennai 58949 230 KV 230KV Kalivanthapattu # & 230KV Western Bus Maintenance Work To be discuss Sun, 20/Aug/2017 10:00 Sun, 20/Aug/2017 17:00 1 Postponed

1031 Erode 58610 KUNDAH PH2 UNIT-2 Possible Sun, 20/Aug/2017 9:00 Sun, 20/Aug/2017 17:00 1 Approved

1032 Erode 58589 KUNDAH PH3 Unit III For monthly maintenance work. Unit under shutdown condition, SF6 breaker open condition. Possible Sun, 20/Aug/2017 8:00 Sun, 20/Aug/2017 17:00 1 Approved

1033 Chennai 58936 110 KV 110KV BBGTPS-II Feeder Half Yearly Maintenance Work Possible Sun, 20/Aug/2017 9:00 Sun, 20/Aug/2017 17:00 1 Approved

1034 Chennai 59036 110 KV 110KV Southern Bus Section. Possible Sun, 20/Aug/2017 7:00 Sun, 20/Aug/2017 18:00 1 Approved

1035 Chennai 59216 230 KV 100 MVA Auto transformer-I For Quarterly Maintenance work For Quarterly Maintenance work Possible Sun, 20/Aug/2017 10:00 Sun, 20/Aug/2017 5:00 1 Approved

1036 Chennai 58707 400 KV 200MVA,400/110KV Auto Transformer-5 Monthly Maintenance Work Sun, 20/Aug/2017 9:00 Sun, 20/Aug/2017 17:00 1 Approved

1037 Erode 59450 KUNDAH PH4 Unit 1 Monthly maintenance work Standby Possible Sun, 20/Aug/2017 8:00 Sun, 20/Aug/2017 17:00 1 Sub to inflow Approved

1038 Chennai 59821 230 KV 100 MVA 230/110 KV Auto Tr.No.III For general maintenance work Possible Sun, 20/Aug/2017 9:00 Sun, 20/Aug/2017 17:00 1 Approved

1039 Chennai 59893 110 KV 110KV Sriperumpudur feeder Breaker &CTs only for monthly maintenance work. Hence there will be no interruption of supply please. Possible Sun, 20/Aug/2017 0:00 Sun, 20/Aug/2017 0:00 1 Approved

1040 Chennai 59923 110 KV 110 KV SRIPERUMBUDUR FEDEER LINE LC 110 KV SRIPERUMBUDUR TOTAL SHUTDOWN WORK Possible Sun, 20/Aug/2017 9:00 Sun, 20/Aug/2017 14:00 1 Approved

1041 Erode 230 KV 220KV YERRANDAHALLY Feeder breaker Monthly maintenance work Possible Sun, 20/Aug/2017 0.375 Sun, 20/Aug/2017 0.58333 1 Approved

1042 Chennai 110 KV GCC II 110 kV Veerampuram - Nemili water works feeder Sun, 20/Aug/2017 9:00 Sun, 20/Aug/2017 17:00 1 Approved

1043 Erode 58994 230 KV 230kv Pallakkapalayam - Gobi Feeder entire. Postponed Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1044 Erode 59258 230 KV GOBI 230 KV For Monthly maintenance work postponed Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1045 Erode 60091 230 KV 230KV Gobi # CT,Breaker and Switches For monthly maintenance Other end also availing LC on that day postponed Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved




1049 Erode 58997 230 KV Possible Mon, 21/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 2

1050 Erode 59093 110 KV INGUR 230 KV 110KV Capacitor Bank II entire DEPENDING UPON LOAD CONDITION Approved Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Sub to grid voltage Approved

1051 Madurai 58571 230 KV TTPS 230KV TTPS-CHECKANURANI FEEDER ENTIRE POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1052 Madurai 58873 230 KV 230KV Bus Coupler Breaker During the LC period no interruption of supply to any other SS. POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1053 Erode 58909 230 KV For monthly maintenance works. Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Sub to Auto load Approved

1054 Erode 58644 230 KV MTPS METTUR TUNNEL POWER HOUSE FEEDER MONTHLY MAINTENANCE PROGRAMED LC Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Sub to load Approved

1055 Erode 58650 230 KV METTUR TPH FOR MONTHLY MAINTENANCE Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Sub to load Approved

1056 Erode 59260 110 KV GOBI 230 KV Capacitor Bank II Breaker and CTs only For monthly maintenance work Capacitor bank I is in service and also subject to the voltage condition Approved Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Sub to grid voltage Approved

1057 Erode 58661 110 KV 110 KV ANTHIYUR-METTUR ENTIRE FEEDER. Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 12:00 1 Approved

1058 Madurai 58964 230 KV On 230 KV TTPS-CHECKANOORANI feeder entire. For Tower to tower inspection work No ss will be affected. POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1059 Erode 59407 230 KV MTPS MTPS-I - MTPH Feeder Programmed LC repeat Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 P-id 58644 Repeat

1060 Madurai 59458 TTPS TEST TEST TEST Mon, 21/Aug/2017 11:00 Mon, 21/Aug/2017 14:00 1 TEST MESSAGE Wrong entry

1061 Erode 58993 110 KV For monthly Maintenance work Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved SGC

1062 Erode 59004 MOYAR Maravakkandy Mini Power House Annual Relay test 11 KV feeder will be in service. Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1063 Erode 59570 400 KV Both end LC applied Possible Mon, 21/Aug/2017 9:00 Thu, 24/Aug/2017 14:00 4 Sub to load Approved SGC

1064 Madurai 59133 230 KV Monthly Maintenance work. POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1065 Madurai 59140 230 KV On 230KV KKDI-KVNR # 1 Entire. Tree Cutting work. During the L.C Period the all other 230KV Feeders tied with Grid. POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved



1068 Madurai 59178 230 KV 230kv RNPM-PGLR # Breaker ,CT and Line switch 1) monthly maintenance2)Relay testing POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 16:00 1 Approved

SIRUSERI 230 KV

DURING THE PERIOD OF SHUTDOWN 1)230KV Kalivanthapattu #, 230kv kitspark # & 230KV Western Bus,100MVA Auto Transformer-II will not be inservice. 2) 230KV KITS Park SS loads will be fed by 230KV Tharamani SS . 3)110KV Sholinganallur SS load will be transferred to 230KV KITS Park SS

GENERATING STATIONS



Sub to other availability of other units

GENERATING STATIONS

Other two unis in service


1. 110KV BBGTPS-II Feeder only will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto-I,II & III will be in service.

TONDIARPET 230 KV

Wedge clamp to be Provided to 110KV Southern Bus Section and Routine Maintenance Works

During the period of shutdown,Except 100 MVA Auto Transformer-3,110 KV Sembium Feeder,110KV Vyasarpadi Feeder and 50 MVA Power Transformer - 1 will not be in service and all other feeders and equipments will be in service.


KOYAMBEDU 230 KV



During the period of Shutdown 200MVA,400/110KV Auto Transformer-4 will be continued in service


GENERATING STATIONS

KORATTUR 230 KV

During the period of S/D, other 2 Nos. 100 MVA Auto Transformers will be in service.

MOSUR 230 KVMOSUR 230 KVHOSUR 230 kV


Free arm stringing of 3 nos. Zebra conductors from Omega 230 kV SS to Ottiyambakkam 400 kV SS, tower location no.52 to 53 the line has to be over crossed the existing 110 kV Veerapuram - Nemili water works feeder.

METTUR AUTO 230 KV

For Jumber cone tightness checking work at river crossing towers (tower loc.no.390 and 390 A )

Both Pallakkapalayam 230 kvss and Gobi 230kvss have programmed for maintenance work on that day.

Tan delta test at Anthiyur230

230 KV GOBI- Pallakapalayam Feeder Breaker, CTâ€™s and line switch with entire line

1.230 KV Arasur,230 KV MTPS II and 230 KV Anthiyur feeders are in service,it may cater the load2.Other end may also avil LC




KAYATHAR 230 KV

110KV KAYATHAR-K.G.PATTI FEEDER SEC B/W KYTHR &KALUGUMALAI

FOR DEFECTIVE DISC REPLACEMET AT VARIOUS LOCATIONS

DURING THE LC PERIOD,1.KALUGUMALAI SS WILL BE RADIALLY FED FROM K.G.PATTI.HENCE NO SS AFFECTED.

ACHRAPAKKAM 230 KV

110KV Kannarpatty - Keelaveeranam feederSection between (Keelaveeranam-Surandai)

Defective jumper replacement work at location No.4 ,9and defective disc replacement work at location No.7,9&21 .

1.110 KV surandai will be fed from Uthumalai SS by closing the isolator towards uthumalai at Surandai SS end.2.110 KV isolator towards Keelaveeranam will be kept opened in Surandai and 110 KV isolator towards Surandai will be kept opened in Keelaveeranam.Hence no SS will be affected .

KAYATHAR 230 KV

110 KV Kayathar - Anupankulam feeder, Breaker with CT and GRT testing works

a) For monthly maintenance work b) For annual relay and breaker testing

During the LC period, the feeder will be radial from other end. Hence no ss affected

UNJANAI 230 KV

110KV Tiruchengode Feeder BReaker,CTs and Line side Isolator only

For Replacing of old Control and Relay panels in tiruchengode feeder

During the LC period 1. On 21.8.2017 Pallipalayam 110KV SS availing total shutdown and radially fed from BKB II end2. On 22.8.2017 Tiruchengode 110KV SS availing total shutdown

2 days LC and Sub to second day Thiruchengode availing TSD



Maintenance work and Annual testing of LAS & CVT

Both end Breakers to be trippedBoth end Bus and Line switches opened conditionBoth end earth switches closed condition


THIRUVARUR 230 KV

230KV Bus coupler Breaker maintenance work.


230/110 KV Auto Transformer - I (HV & LV Breakers, CTs & LAS)

During the LC period,1)110 KV OKM-TDLR I & II feeder loads will be transferred to 230 KV TDLR SS (if necessary)2)The remaining two Auto transformers are in service to cater the ss loads with support of wind generation.

230KV MTPS - MTPH FEEDER BREAKER & ITS CT'S

DURING THE LC PERIOD THE OTHER 230KV FEEDER ARE IN SERVICE AND THE PWD DEMAND IS MEET OUT THROUGH PWD.MACHINES 1,2,3& 4 ARE IN STAND BY CONDITION

ANTHIYUR 230 KV


DURING THE LC PERIOD METTUR END ALSO PROGRAMMED TO AVAIL LC ON THE SAME DAY





GENERATING STATIONS

UNJANAI 230 KV

Unjanai- BKB II 110KV Feeder, Breaker,CTs and Line side Isolator only2. Auto TR no I, HV & LV Breaker and CTs only

During the LC period, 1.Pallipalayam 110KV SS also programmed to avail LC on that day 2.Auto Tr No II will cater the station Load if necessary Nallur 110KV SS loads transfer to Pudanchanthai 230KV SS

Pallipalayam TSd and Sub to Auto load

GENERATING STATIONS

Sub to PUSHEP discharge

Udumalpet 400 KV

230KV Myvadi- Udumalpet LINK 2 # Breaker & CT line entire

For Monthly Maintenance and PMI & Relay & c.t panel replasement work by lines wing.

PUGALUR 230 KV

230KV Pugalur - Renganathapuram feeder Breaker, CTs & line switch and entire line only

During the LC period there will be no supply in 230 KV Pugalur - Renganathapuram feeder since other end also availing L.C for monthly maintenace work.


KARAIKUDI 230 KV


SANKANERI 230 KV

110KV Sankaneri-Udayathur feeder Breaker CTS&Lineswitches.


During the LC Period 110KV Udayathoor feeder Supply Radially upto NavalladySS.Hence NO ss will be affected.


EACHANGADU 230 KV

230 KV Eachangadu- # poyyur BREAKER, CT's, &LINE CVT


During the above shutdown period the 230 KV Eachangadu ss will be Radially fed from 230 kv Eachangadu- Neyveli TSI #. 230 KV POYYUR SS end is also availing LC On that Day.



During LC period other end also programmed for availing LC in this feeder




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1069 Erode 59200 110 KV PYKARA 110 KV GC BREAKER AND 66KV ENTIRE BUS For monthly maintenance work NIL Possible Mon, 21/Aug/2017 8:00 Mon, 21/Aug/2017 17:00 1 Approved SGC

1070 Erode 60076 230 KV 230KV Myvadi link II # Breaker & Line entire possible Mon, 21/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 4 Sub to load Approved SGC

1071 Erode 60097 230 KV For monthly maintenance Auto Transformer I will manage the load postponed Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1


1073 Madurai 59257 110 KV Maintenance Works of BKR & CT, LI only. POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 14:00 1 Approved

1074 Madurai 59315 230 KV 230 KV Checkanurani - TTPS feeder entire For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1075 Chennai 59393 110 KV ARNI 230 KV For monthly Maintenance work. Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1076 Madurai 59465 230 KV TTPS 230KV TTPS-CKNI# POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 18:00 1 Approved

1077 Madurai 59476 230 KV 230KV KAVANOOR-KARAIKUDI # I LINE MAINTENANCE WORKS NO SUPPLY IN THE FEEDER POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved


1079 Erode 59638 230 KV KUNDAH PH3 230 KV PH2 TO ARASUR FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Mon, 21/Aug/2017 8:00 Mon, 21/Aug/2017 17:00 1 Sub to load Approved

1080 Chennai 59641 110 KV For monthly maintenance works Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1081 Erode 59733 110 KV 110 KV Arasur SS will be under total shutdown. Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 16:00 1 Arasur Gc TSD Approved SGC

1082 Erode 60024 110 KV Jumper replacement work Veepadai SS Total Shutdown Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Sub to Veppadai TSD Approved SGC

1083 Erode 60025 110 KV 110KV Unjanai-BKB II # Line entire Jumper replacement work Pallipalayam SS total shutdown Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Pallipalayam TSd Approved SGC

1084 Erode 58802 110 KV Salem 400 KV monthly maintenance work Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Traction trf to #2 Approved

1085 Madurai 58811 110 KV For Monthly Maintenance Work POSSIBLE Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1086 Erode 58845 110 KV For Monthly Maintenance work 110 KV Neyveli # II will be kept radial from TS -I end. Possible Mon, 21/Aug/2017 9:00 Mon, 21/Aug/2017 17:00 1 Approved

1087 Madurai 59868 110 KV 110KV KNMLM THENI II Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 SUB TO WIND GEN Approved

1088 Madurai 58984 110 KV For monthly maintenance works Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 13:00 1 SUB TO WIND GEN Approved

1089 Erode 58616 110 KV KUNDAH PH2 postponed Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1


1091 Erode 58910 230 KV postponed Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Postponed



1094 Erode 58546 230 KV 230 KV Karamadai feeder Breaker & CTs For monthly maintenance works Other 230 KV feeder share the loads possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1095 Chennai 58632 230 KV For monthly maintenance works. Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1096 Madurai 59154 230 KV 230/110KV AutoTransformer-II,HV&LV Breakers. NOT POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

1097 Madurai 58557 110 KV 110KV K.Venni-Kudavasal feeder POSSIBLE Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 17:00 1 Approved

1098 Erode 58911 110 KV 110 KV OKM-UDPT 2 feeder (Breaker, CT's,) For monthly maintenance works. possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1099 Chennai 59183 230 KV 230KV BUS A i) All 230KV feeders & Auto transfomers transferred to BUS To be discuss Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 17:00 1 Approved

1100 Madurai 58955 230 KV For monthly maintenance works. POSSIBLE Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 16:00 1 Approved

1101 Madurai 59244 230 KV 230 KV BUS I 230 KV isolator no 45 alignment work NOT POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

1102 Madurai 58965 230 KV On 230KV TTPS-sterlite feeder entire For Tower to Tower Inspection work POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved SGC

1103 Madurai 58986 230 KV For monthly maintenance works. POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1104 Erode 58995 110 KV For monthly maintenace work possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved SGC

1105 Madurai 59043 400 KV Monthly Maintenance work POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1106 Madurai 59083 230 KV For monthly maintenance work POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

Sub to inter load SS availing TSD

UDUMALPET 230 KV

For Monthly Maintenance(one day). Panelboard replacement works by P&C wing

DURING LC PERIOD THE ABOVE FEEDER LOAD WILL CATER WITH MYVADI LINK I FEEDER


Auto Transformer-II HV and LC side - Entire Transformer LAS CT Breaker and Switches

Auto trf 2 LC recommended at Unjanai


PASUMALAI 230 KV

110 KV Pasumalai -(Tirumangalam) -Kinnimangalam 3 # BKR & CT,LI only. and section between Pasumalai SS and Tirumangalam SS - Line LC.

1)Maintenance Works of BKR & CT,LI 2)Tree cutting works in the section between Pasumalai SS and Tirumanglam SS .

1) 110/11KV Kappalur SS will be under total shutdown. 2) At Tirumangalam SS the switch towards Kappalur SS will be kept opened. 3) The feeder will be kept radial from Kinnimangalam SS upto Tirumangalam SS 5)Hence No interruption of Supply to any SS


PASUMALAI 230 KV

1)110 KV Pasumalai - Sembatty Feeder BKR & CT,LI only section between Pasumalai and Achampathu SS

1) The Feeder will be kept radial from Sembatty end upto Achampathu SS. 2)110KV AB Switch towards Pasumalai at Achampathu SS will be kept opened




110 KV Santhavasal #, 110KV Breaker, CTâ€™s & Line Isolator

110KV Santhavasal SS availing total shutdown.Hence no interruption of supply.

TO REPLACEMENT OF NEW MAIN 2 NUMERICAL DISTANCE PROTECTION RELAY(MICOM C442)

230KV TTPS-CKNI # SHOULD BE TRIPPED,ISOLATED AND EARTHED AT BOTH ENDS


KAVANOOR 230 KV



110KV N T KUDI-MADUKKUR-THIRUMAKKOTTAI-KOVILKALAPPAL FEEDER (LP: KOVILKALAPPAL TO 110KV THIRUMAKKOTTAI SS)

FOR PREMONSOON INSPECTION WORK BY AE/LINES/PATTUKKOTTAI

1) DURING THE LC PERIOD, 110KV MADUKKUR SS AND 110KV THIRUMAKKOTTAI SS RADIALLY FED FROM 230KV NT KUDI SS. 2) NO INTERRUPTION TO ANY OTHER SS.


CUDDALORE 230 KV

110 KV Bus Coupler breaker with CT’s and Auto transformer I HV & LV breakers with CTs.

110 KV Bus A & B will be independent.The 110 KV Capperhills SS and 110 KV chidambaram SS availing total shutdown. The 110 KV Cud – LANCO # tie will be opened at 110 KV Chidambaram SS Hence no interruption of supply.

ARASUR 230 KV

110KV Arasur local SS GCCB and 110 KV Capacitor bank-III and its units.

For Total Shut down works and monthly maintenance works.

UNJANAI 230 KV

110KV Pallakapalayam-Sankagiri I # line portion between PKPM SS and Veepadai SS

UNJANAI 230 KV

110 KV SALEM I # CT, BREAKER, BUS & LINE SWITCHES

During 110 KV Salem I # LC period, 110 KV Salem II # will be service condition. Hence, there will be no interruption of supply.


On 110KV TTN-Sipcot-III feeder breaker with CT bus and line side switches

During the above LC period No SS will be affected , 110KV Town SS will be fed from 230KV Sipcot SS .


DEVIAKURICHI 230 KV

110 KV TASPL Feeder( Neyveli Feeder- II) Breaker and CTs.

Inter load fed from NLY TS1



EE/O/CKNI has also programmed Line LC section between KNMLM and Kanavilakku. Andipatty SS will change over to Theni I feeder,110KV Chinnakatalai,Elumalai SS availing Total shutdown. During the LC period the feeder will be radial from Theni upto Kanavilakku SS.


On 110KV Sipcot-EPVN# breaker with CTs only at 110KV EPVN SS end as requested by EE/D/KVPTI

During the LC period, the 110KV EPVN-KYTR feeder in radial condition. The 110KV AYPRM SS will be radially fed from 230KV MVTN SS and 110KV OPTM SS will be in shutdown condition. Hence no other SS will be affected please.

110KV KUNDAH FEEDER NO 1&2 SF6 BREAKER AND ITS ACCESSIORIES



to be scheduled on a sunday


ACHRAPAKKAM 230 KV

110KV Kodikurchi-Kannarpatty feederSection between ( Alangulam-Kannarpatty)

Defective disc replacement work at location No. 12, 24 .

1.110 KV Keelapavoor SS ,Alangulam SS,New Alangulam SS ,Keelaveeranam SS will be fed from Kodikuruchi SS. 2.110 KV isolator towards Kanarpatty will be kept opened in Alangulam SS and 110 KV isolator towards Alangulam will be kept opened in Kannarpatty.Hence no SS will be affected .


230 KV OKM-Coimbatore Feeder (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For monthly maintenance works and PMI works by Lines/TDLR wing.

During the LC period, The other 230 KV feeders are in service to cater the ss loads.

to be scheduled with tsd in coimbatore fed regions

KAYATHAR 230 KV

110KV KAYATHAR-VAANCHIMANIYACHI FEEDER ENTIRE LINE

FOR JUMPER TIGHTNESS CHECKING WORK AT VARIOUS LOCATIONS

DURING THE LC PERIOD,THERE WIIL BE NO SUPPLY IN ENTIRE LINE ( CONCURRENCE TO BE OBTAINED FROM RLY)

SUB TO CONCURRENCE FROM RAILWAY TRACTION

ACHRAPAKKAM 230 KV

230/110 KV 100 MVA Auto Transformer â€“ II HV and LV Breaker and CTâ€™s

1) 100 MVA Auto transformer-I in service condition2) 110KV ACK - Villupuram # I & II Radial charged from Villupuram End 3) 110KV ACK - SP Koil # I & II Radial from SP Koil End.4) 110KV Vandavasi # Radial from other end.5) Hence no Interruption of power supply.

THUDIALUR 230 KV

subject to the load condition existing


100MVA, 230/110 KV Auto Transformer-II - HV & LV Breakers and Current Transformers only.

i)The 100MVA Auto Transformer-II is feeding load only to the 110KV GC of 230KV SIPCOT Mambakkam SS.ii)The 110KV GC load of 230KV SIPCOT Mambakkam SS will be 0MW during the above proposed L.C. period, since there is total shutdown in the entire 11KV and 33KV side, for monthly maintenance works.

SANKANERI 230 KV


During the LC Period Auto Transformer-II willnot beinservice. AutoTransformer-I will be carriedout the EntireLoad.

kumbakonam 230 KV

Monthly Maintenance 110KV Kudavasal -Kovil venni feeder.

During the LC Period 110 Kudavasal ss will be tentatively under total shut down and 110 KV sakottai SS 33KV feeding will be fed from 110KV KGTPS-KUMBAKONAM FEEDER.



During the LC period,1)110 KV Kongal nagaram SS will be under Total Shut down.2)110 KV OKM-UDPT II feeders loads will be fed from 110 KV UDPT SS.3)Hence no ss will be affected.

subject to the feeder being kept radial from udpt ss end

ORAGADAM 230 KV

Quarterly Maintenance & Maintenance of Jumbers

PERAMBALUR 230 KV

1)230/110KV Auto-III,HV-III,LV-III Breakers CT'S & Isolaters only.

During above period of shut down 1)110KV Krishnapuram feeder tie will be opened at Perambalur SS. 2)The remaining loads will be fed Through Auto Transfermer I(100MVA) of Perambalur Auto SS.


SRPUDUR 230 KV

During the LC period The 230 KV SRP KDM # radial from KDM upto SRP (excl). 100 MVA AUTO Tr I will ben service in Transfer Bus through Tie breaker.100 MVA AUTO Tr IIIwill not be service.


No ss will be affected. During the above LC period 230KV sterlite SS will be radially fed from 230KV Anupankulam SS

SUB TO LOAD CONDITION AND TTPS GEN

STERILITE SW STATION 230 KV

On 230 KV Sterlite - TTPS feeder breaker with CTs and line isolators only.

During the LC period, the other end has also proposed LC on the same date and no other SS will be affected and M/S. Sterlite-CPP generation (if available) will be exported to 230KV APKM SS please.


UNJANAI 230 KV

1. Unjanai- Nallur 110KV feeder,Breaker,CTs and Line side isolator only2. Unjanai-Tiruchengode 110KV feeder,Breaker,CTs and line side Isolator only3.230KV and 110KV Bus section Breaker and CTs only4.Auto Tr No II HV & LV Breakers and CTs only

During LC period 1&2. also programmed to avail LC on that day 3.Auto I loads will be Fed from Salem 400KV SS 230KV feeder and Auto II loads will be fed from Pudanchanchai 230KV SS 4. Auto TR No I will cater the Station loads

1 & 2 subject to tsd being realized; 3 & 4 will be subject to krt auto tr loading condition and 230 kv pugalur to puthansanthai feeder loading condition

KAYATHAR 400 KV

400kv Main Breaker for ICT3(412-52),400KV Tie breaker for ICT2 &ICT3 (411-52) 230kv LV Breaker for ICT3(203-52), 400/230kv ICT3

During the LC period there will be no supply in 400kv Main Breaker for ICT3(412-52),400KV Tie breaker for ICT2 &ICT3 (411-52) 230kv LV Breaker for ICT3(203-52), 400/230kv ICT3. Hence no substation affected.



230/110 KV Auto Transformer I , 230KV HV Breaker I with CT, 110KV LV Breaker I with CT.

During the LC period 110 KV Reddiyapatti SS, 110KV Rajapalayam SS and 110KV Alangulam Substation will be availing total monthly shutdown on that day. Hence no SS affected.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1107 Madurai 59086 110 KV For monthly maintenance work POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 15:00 1 SUB TO TOTAL S/D Approved

1108 Madurai 59088 110 KV For monthly maintenance work POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 16:00 1 SUB TO TOTAL S/D Approved

1109 Erode 59095 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1110 Madurai 59136 230 KV For Monthly maintenance Work . POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1111 Madurai 59158 230 KV For monthly maintenance purpose. POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1112 Erode 59182 110 KV MOYAR 110 K|V Moyar - Periyakodiveri feeder Annual Relay Test Other feeders will be in service. possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1113 Erode 59434 110 KV postponed Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1

1114 Madurai 59221 230 KV 100 MVA AUTO - II, HVB - II, LVB - II, CT only. Monthly Maintenance Works POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved


1116 Chennai 59301 230 KV Autotransformer-II, Breaker, CT's and LAS Monthly maintenance work Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1117 Madurai 59314 110 KV 110KV SBT - DGL # Bkr, CTs and line entire POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1118 Madurai 59316 230 KV 230 KV Checkanurani - Kayathar I feeder entire For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1119 Madurai 59318 110 KV POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 SUB TO WIND GEN Approved

1120 Chennai 59335 110 KV Monthly maintenance work Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 15:00 1 Approved

1121 Madurai 59377 230 KV Monthly Maintenance Work POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1122 Erode 59415 110 KV KUNDAH PH1 110KV PH1 TO PH 2 # 1& 2 possible Tue, 22/Aug/2017 8:00 Tue, 22/Aug/2017 17:00 1 Approved

1123 Erode 59666 230 KV KUNDAH PH3 230 KV BUS AT PH4 postponed Tue, 22/Aug/2017 8:00 Tue, 22/Aug/2017 17:00 1

1124 Erode 59416 110 KV possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved SGC

1125 Erode 59429 110 KV 110 KV Palladam-Tirupur # Breaker ,CT'S with line possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved SGC

1126 Madurai 59431 110 KV 110 KV KAVANOOR-PARAMAKUDI # ENTIRE LINE MAINTENANCE WORKS PMDI SS AND ILYNGDI & MRVMNGLM TOTAL S/D POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

1127 Erode 59449 230 KV 230KV Salem KR Thoppur Link-I feeder Tension point jumpers checking work possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1128 Erode 59461 110 KV Erode 110 KV DURING LC PERIOD NO SS WILL BE AFFECTED possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1129 Erode 59501 230 KV LC programmed at other end also. possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1130 Madurai 59504 110 KV 110kv SANKANERI fdr. Br. Ct only. MONTHLY MAINTENANCE WORK POSSIBLE Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 14:00 1 Approved

1131 Erode 59514 230 KV 230KV Link Feeders I Breakers, CTs & Line Isolators Monthly Maintenance work. possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1132 Madurai 59552 110 KV 110KV Kadalangudy Link feeder Monthly Maintenance work POSSIBLE Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 15:00 1 SUB TO TOTAL S/D Approved SGC

1133 Erode 59819 400 KV 400KV Thiruvalam - 2 Feeder and ICT - 4 postponed Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Postponed

1134 Erode 59580 110 KV For monthly maintenance works. possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 16:00 1 Approved SGC

1135 Erode 59618 110 KV 110KV Auxiliary Bus ABS 1 TO Eastern side possible Tue, 22/Aug/2017 8:00 Tue, 22/Aug/2017 17:00 1 Approved

1136 Chennai 59846 230 KV 230KV Villupuram feeder 230KV Villupuram feeder Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1137 Chennai 59646 230 KV 230KV Cuddalore- TAQA # For monthly maintenance works Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1138 Chennai 59690 230 KV 230 KV TAQA – CUD feeder Alternate supply from 230 KV NEYVELI-CUD Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1139 Chennai 59692 230 KV 230 KV Ulundhurpettai- Villupuram Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1140 Chennai 59707 230 KV 230KV Villupuram – Ulundurpettai # Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved


1142 Erode 59729 110 KV For monthly maintenance works. possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 15:00 1 Approved

1143 Erode 59774 230 KV 230 KV S.D.PALAYAM # Breaker, CTs & line Entire possible Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 17:00 1 Approved

1144 Madurai 58739 230 KV For a) Monthly Maintenance works POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 16:00 1 Approved


110KV Rajapalayam feeder breaker with C.T and Bus & Line Isolators and 110KV Reddiapatti feeder breaker with C.T and Bus & Line Isolators



110 KV Alangulam feeder breaker with C.T and Bus Isolator, 110KV Bus section I and 110 KV PT-I


110KV Erode II # Breaker, CTs, Isolators and Line side Isolator


PUGALUR 230 KV

Auto transformer III, HV III and LV III Breaker,CT's and LAS only.

During the L.C Period, HV III Breaker and LV III Breaker are tripped condition.110KV Veppampalayam SS,110KV Thanthonimalai SS, are proposed total shutdown.There is no interruption to any SS.load contain with in two auto transformer(I & II).


SANKANERI 230 KV

230/33KV PowerTransformer-I HV&LV Breakers,CTs only. .

During the LC Period PowerTransformer-I will not beinservice.PowerTransformer-II&III willbe Carriedout the EntireLoad.



PALLADAM 230 KV

110 KV Northern Bus (Auto III,Auto IV, 110 KV Sipcot II # and 110 KV Tirupur #)

To carryout Half yearly maintenance work by AE/M/Palladam and errection of 110 KV PT-II where released from middle bus

1)During LC period 1)Other Two Auto transformers I and II will be in service2)110 KV Alagumalai SS ,110 KV Mudalipalayam SS and Old Tirupur SS availing total shutdown3)110 KV Kumar Nagar SS will fed from 230 KV Ingur SS

tsd insufficient for lc in two nos of auto trs


PASUMALAI 230 KV

1)Auto Transformer -1 will be in Service. 2)110/33-11KV Anuppanadi SS will be under Shutdown


PASUMALAI 230 KV

1)110KV Pasumalai - Alagarkoil -1 # BKR & CT,LI. 2) Line LC Section between Pasumalai -Avaniyapuram SS.

1)Maintenance Works of BKR & CT, LI 2) Tree cutting works and T-T Inspection works

1) The Feeder will be kept radial from Alagarkoil SS upto Avaniyapuram SS feeding Othkadai, Industrial Estate SS, Vandiyur SS and Avaniyapuram SS 2)110/33-11 KV Anuppanadi SS will be under Shut down.

SUB TO LOAD CONDITION AND ALKL AUTO LOADING


During the period of L/C time,1. 110 KV Thandrampet SS availing total S/D,2. Autotransformer-II will be OFF condition.3. Autotransformer-I will be in service and cater the station loads. Hence there is no interruption of supply please.

SEMBATTY 230 KV

1. Monthly maintenance work2. Tree cutting work

During the LC period , Dindigul SS and railway traction SS will be transferred to AKL II feeder. Hence no interruption to any SS.





110KV Kinnimangalam - Theni II feeder section between Kinnimangalam and K.Vilakku


During LC period feeder will be radial from Theni upto K.Vilakku. 110 KV Elumalai and Chinnakattlai SS availing Total Shutdown and 110 KV Aundipatti SS load will be transffered to Theni-I feeder.


110 KV Tiruvannamalai-Thandrampet #, Breaker, CT's and Line Isolator

During the period of L/C time, 110 KV Thandrampet SS availing total S/D and there is no interruption of supply please.

AMUTHAPURAM 230 KV




110KV PH1 to PH2 # 1& 2 one after another Annual relay testing work by P&C wing Kundah & Monthly Maintenance work

During the LC Period, the concern feeder will be radially feed from other end.

to be availed one by one subject to the load condition existing

Replacement of defective LAS as remarked by HOT LINES

All Units are shutdown condition; All feeders are open condition; MODS are open condition



PALLADAM 230 KV

110 KV Palladam -Sipcot II feeder Breaker,CT's and line isolator

To carryout monthly maintenance work by AEE/M/Palladam and Premonsoon line inspection work by AE/Lines/Palladam (upto Alagumalai SS)

1)110 KV Alagumalai SS and Mudalipalayam SS availing total shutdown2)No other SS will be affected

subject to the realization of tsd

PALLADAM 230 KV

To carryout monthly maintenance work by AE/M/Palladam and Premonsoon line inspection work by AE/Lines/Palladam upto loc 163.

1)110 KV Old Tirupur SS availing total shutdown2)110 KV Kumar Nagar SS will fed from Ingur 230 KV SS3)No other SS will be affected

subject to the realization of tsd and the feeder being kept radial from ingur ss

KAVANOOR 230 KVSALEM AUTO 230 KV

1. 230KV Salem – KR Thoppur Link-I feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. Both ends are availing breaker and line switches LC. 4. There will be no interruption to any SS.

subject to the other link feeder loading limit

110 ERODE -INGUR II FEEDER BREAKER CT AND LINE ISOLATOR

CONDUCTING ANNUAL RELAY TEST BY AEE /P&C -I AND MONTHLY MAINTENANCE WORK


KARAMADAI 230 KV

230KV Karamadai- Thudialur feeder breaker, CT's& CVT's

For monthly maintenance work of 230KV Karamadai- Thudialur feeder breaker, CT's& CVT's


UDAYATHUR 230 KV

110kv Navaladi SS will be fed from 110kv Udayathoor fdr of 230kv Sankaneri ss & 110kv supply radial upto Udaythoor ss switch end


SALEM AUTO 230 KV

1. 230KV Link-I feeder LC will be availed at both ends. 2. 3Nos 230KV feeder will be in service 3. There will be no interruption to any SS or feeder.


KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS.110KV Kadalangudy SS proposed total shut down on the sane day.

PALAVADI 400 KV


No interruption of supply, Load fed through 400KV Thiruvalam - 1 Feeder and Pennagaram load fed through 230KV Karimangalam SS

no occ approval obtained


110KV Valayapatty feeder CB, CTs and Line Switch.110KV Namakkal feeder CB, CTs and Line Switch.

During LC period110KV Valayapatty SS now fed by 110KV Valayapatty feeder from New 230KV Valayapatty SS, availing Total Shut down.110KV Sendamangalam SS now fed by 110KV PSI-Valayaptty feeder, availing Total Shut down.110KV Namakkal SS will be back fed through 110KV Valayaptty feeder from 230KV Valayapatty SS.No supply interruption.

subject to the tsd being realized and load transfer

METTUR AUTO 230 KV

110KV Auxiliary Bus Portion between ABS 1 to ABS2 conductor Replacement Work(Kundah to Zebra)

110KV Main Bus and Auxiliary Bus Portion between ABS 1 TO Western side will be in-service


Ulundurpet 230 KV

It is proposed to avail line clear and 230 KV Ulundurpet â€“ Villupuram feeder for carrying out the relay test by GRT / Villupuram . So, on this day Ulundurpet Auto SS Breaker,Isolators and CTâ€™SMaintance work Carried out

CUDDALORE 230 KV

All the loads will be transferred to 230 KV Cuddalore – Neyveli TS -1 # . Hence no interruption of supply.

CUDDALORE 230 KV

At loc. 40,42 & 48 Flash over Insulators have to be replaced.At Loc.90 Jumper Arc to be cleared.At Loc 114 & 118 Top phase Jumper Arc to be cleared

CUDDALORE 230 KV

To Check jumper tightness at various locations

Alternate supply from TSII end . (TSD in 230 KV Ulpt Auto SS- ULPT –VPM)

VILLUPURAM 230 KV

To carry Breaker and CT’s Monthly Maintenance Work.

1.Both ends will be H/T and kept opened 2.Other 230KV feeder will be in service.3.Hence No interruption of supply to any SS.

VILLUPURAM 230 KV

110 KV Thirukoilur - Deviyakuruchi # (between Thirukoilur and Ariyalur SS)

For inspection of jumper joints at various locations in the Devaradiarkuppam LILO (Manalurpet)

1.) The 110 KV line between Thirukoilur and Ariyalur SS will be kept off.2.) The feeder will be radial from Deviyakuruchi end up to Ariyalur and radial from Villupuram end up to Thirukoilur.3.) 110 KV Devaradiarkuppam SS availing total shutdown. No interruption of supply to any SS.

ARASUR 230 KV

110KV Capacitor bank-I breaker and CTs and cell units.


subject to the voltage profile in the grid

PONNAPURAM 230 KV


1.230KV Grid #, Hence No SS will be affected,2.230KV S.D.Palayam SS will also avail LC at their end.


TRICHY 230 KV

100MVA Auto Transformer III, LV III BREAKER, LAS, CTs and ,LV III I/C Isolator.





NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1145 Erode 59790 110 KV possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved SGC

1146 Madurai 59802 110 KV For monthly maintenance work. No SS affected, since no SS connected in this feeder POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1147 Erode 59823 230 KV Monthly maintenance and P&C check. 230 KV Sadayapalayam-Palladam feeder in service. possible Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 17:00 1 Approved

1148 Chennai 59843 230 KV 230KV Villupuram feeder 230KV Villupuram feeder Repeat Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Repeat

1149 Chennai 59847 230 KV 230KV Villupuram feeder 230KV Villupuram feeder Repeat Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Repeat

1150 Chennai 59895 230 KV 230KV Alamathy Feeder Breaker & CTs only for monthly miantenance work. 230KV Athipattu & 230KV Thiruvalam Feeder are in service. Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1151 Erode 59896 110 KV 1.110 KV Bargur feeder breaker, CTs & Line switch possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1152 Chennai 59914 110 KV 110 KV S.P.Koil - M.M. Nagar I Feeder Quarterly Mtce Work 110 KV M.M.Nagar SS Availing total shutdown Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1153 Chennai 59925 230 KV 230 KV ALAMATHY FEDEER LINE LC 230 KV ALAMATHY TOTAL SHUTDOWN WORK Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved

1154 Erode 60078 230 KV 1.230KV CBE-OKM feeder Breaker & CTs Monthly maintenance Works postponed Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 16:00 1 Postponed

1155 Chennai 59944 110 KV 110 KV Railway I feeder. For EHT Line Maintenance Works Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1156 Chennai 59945 110 KV 110 KV Sugar Mill feeder entire For EHT Line Maintenance Works Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1157 Chennai 59947 110 KV For EHT Line Maintenance work Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1158 Chennai 59950 110 KV 110 KV Thiruvalam â€“ M.V.Puram feeder entire. For jumper tightness checking work. Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1159 Chennai 59952 110 KV For replacement of sag Jumper at Loc 113. Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1160 Erode 59969 230 KV Auto transformer I, LV I Breaker & CTs possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 16:00 1 Approved

1161 Madurai 58746 230 KV TTPS 230KV TTPS - STERLITE FEEDER ENTIRE POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved SGC


1163 Erode 60009 110 KV possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 15:00 1 Approved

1164 Erode 60026 110 KV BKB II – Thiruchengode 110KV # Line entire PMI and Jumper tightness checking Tiruchengode SS Total Shutdown possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 14:00 1 Approved SGC

1165 Erode 60028 230 KV 230KV Puthansanthai-Pugalur # line entire PMI and Jumper tightness checking Other feeders cater the load possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved



1168 Madurai 58770 230 KV Monthly maintenance POSSIBLE Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1169 Erode 58807 230 KV Salem 400 KV monthly maintenance work Both end Monthly Maintenance Work possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1170 Madurai 58825 400 KV MONTHLY MAINTENANCE WORK POSSIBLE Tue, 22/Aug/2017 10:00 Tue, 22/Aug/2017 17:00 1 Approved


1172 Erode 58847 110 KV 110 KV Neyveli # I Breaker and CT’s For Monthly Maintenance work 110 KV Neyveli # I will be kept Radial from TS-I end possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved

1173 Madurai 58875 110 KV 110KV Kodavasal - Kovilvenni feeder Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved

1174 Erode 400 KV Monthly Maintenance works by Maintenance wing Possible Tue, 22/Aug/2017 9:00 Tue, 22/Aug/2017 17:00 1 Approved SGC

1175 Erode 58913 110 KV For monthly maintenance works. postponed Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1


KARUVALUR 230 KV

110 KV Karuvalur-Thekkalur feeder Breaker ,line switch and Its CTs.


110KV Thekkalur SS Total shut down and 110kV KPR(EHT) load transferred to 110kv Kvlr-ASR feeder II.

subject to thekkalur ss availing tsd

ANUPPANKULAM 230 KV

110 KV APKM- Rajapalayam - II feeder Br., CT. and line switch only.


230 KV Sadayapalayam-Ponnapuram feeder breaker and isolators.


Ulundurpet 230 KV

It is proposed to avail line clear and 230 KV Ulundurpet â€“ Villupuram feeder for carrying out the relay test by GRT / Villupuram . So, on this day Ulundurpet Auto SS Breaker,Isolators and CTâ€™SMaintance work Carried out.

Ulundurpet 230 KV

It is proposed to avail line clear and 230 KV Ulundurpet â€“ Villupuram feeder for carrying out the relay test by GRT / Villupuram . So, on this day Ulundurpet Auto SS Breaker,Isolators and CTâ€™SMaintance work Carried out

MOSUR 230 KVKARIAMANGALAM 230 KV

Carryout Monthly SS Maintenance works by maintenance wing

110 KV Bargur and 110/33 KV Penneswaramadam are availing total shut down. Expected load relief : 35 MW. The station loads will be managed by keeping Auto Transformer - I, II & III and 230 KV Shoolagiri and Mettur feeder are in service and also 1 No Grid feeder in service.

subject to the tsd being realized

S.P.KOIL 230 KVMOSUR 230 KVCOIMBATORE 230 KV

230KV CBE SS will be fed from 230KV TDLR - CBE feeder of 230KV Thudiyalur SS

to be scheduled with tsd in coimbatore fed regions

THIRUVALAM 230 KV

During the period of LCiii. 110 KV Railway I feeder breaker will be in â€œ OFFâ€ condition at both end.iv. 110 KV Railway II feeder will be �in service.Hence there will be no interruption of supply please.

THIRUVALAM 230 KV

During the period of LCi. 110 KV Sugar mill feeder breaker will be in â€œ OFFâ€ condition at both end . Hence there will be no interruption �of supply please.

THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Kaveripakkam feeder (In between 230 KV Thiruvalam SS and 110 KV Kaveripakkam SS).

During the period of LCi The 110KV Kaveripakkam Feeder will be in â€˜OFFâ€™ Condition(In between 230 KV Thiruvalam SS and 110 KV Kaveripakkam SS).ii The 110 KV Sipcot SS & 110 KV Kaveripakkam SS are availing total Shutdown.

THIRUVALAM 230 KV

During the period of LCi. 110 KV Thiruvalam â€“ M.V.Puram feeder line LC in between from 230 KV Thiruvalam SS to 110 KV Sholinghur SS.ii. The 110KV M.V.Puram SS, 110KV Mukundrayapuram SS, 110KV Sholinghur SS (11kv loads), are availing Total Shutdown Hence there will be no interruption of supply please.

MOSUR 230 KV

110KV Mosur â€“ Sholinghur feeder in between 230KV Mosur SS and 110 KV Sholinghur SS.

During the period of LCi. 110 KV Mosurâ€“ Sholinghur feeder line LC in between from 230KV Mosur SS and 110 KV Sholinghur SS.ii. The 110KV Sholinghur SS (33kv loads), are availing Total Shutdown Hence there will be no interruption of supply please.

SINGARAPET 230 KV


During the LC period, 1) 110 KV LV I breaker will be in handtrip condition and Auto transformer I will be in off condition2) The Auto transformer II, III and all 110 KV feeders will be in service hence no interruption of supply3) The 110 KV Ramiyanahalli SS and 110 KV Pappireddipatty SS loads will be transferred to Karimangalam 230 KV SS if necessary4) 110 KV Harur SS load will be fed from Singarapet 230 KV SS

subject to the other auto trs loading limit

ANNUAL MAINTENANCE OF STRUNG BUS INSULAOTRS.

1. 230KV TTPS - STERLITE FEEDER BREAKER TRIPPED CONDITION AT BOTH ENDS2. 29A & 29B ISULATORS KEPT OPEN CONDITION3. EARTH SWITCH SHOULD BE CLOSED CONDITION AT BOTH ENDS


THIRUVALAM 230 KV

i) On Auto Transformer â€“I, HV-I, LV-I , Auto Transformer â€“IV, HV-IV, LV-IV Breakers and its Cts ii)On 110KV Sugar Mill feeder and 110KV Railway â€“I Feeder Breaker and CTâ€™s, for monthly maintenance workiii)On 110KV Kaveripakkam feeder Breaker and its CTâ€™s, iv)On 110kv M.V.Puram Breaker and its CTâ€™s for monthly mtce. work

i)For Auto Tr -IV,HV -IV,LV-IV, and Auto Tr -I,HV -I,LV-I for monthly maintenance work,ii)On 110KV Kaveripakkam feeder Breaker and its CTâ€™s,110KV Sugar Mill feeder,110Railway-I Feeder and110kv M.V.Puram Breaker and its CTâ€™s for monthly mtce. Workiii)For 110KV LV-I Isolator and LV-IV switches defects to be attended.

During the period of LCi) 110KV Kaveripakkam SS, 110KV SIPCOT SS 110kv M.V.Puram SS,110KV M.R.Puram SS,110kv sholinghur SS are availing Total shutdown on 22.08.2017The total shutdown approved and concurrence obtained by CE/Distribution/Velloreii) Auto â€“Tr-II,HV-II,LV-II, and Auto â€“Tr-III,HV-III,LV-III, will be in service and cater the SS Loads.iii) Auto-Tr-IV ,HV-IV,LV-IV and Auto-Tr-I ,HV-I,LV-I, will be in â€˜OFFâ€™ Condition.iv) The 230KV Chittoor interstate feeders,230KV Link-II # 230KV Link-I Feeder and 230KV Mosur feeder will be in service and cater the SS Loads. Hence there will be no interruption of supply please.

Singarapet 110 KV

110KV METTUR # I SF6 BREAKERS, CT'S AND ENTIRE LINE


DURING THE LC PERIOD,1) 110KV THOPPUR SS TOWARDS SINGARAPET SIDE ISOLATORS KEPT OPEN AND BLINK FOR OPENING BOTH END.2) 110KV METTUR # I RADIAL FROM OTHER END3) HENCE THERE IS NO INTERRUPTION OF SUPPLY

subject to the feeder being kept radial from mettur ss end

UNJANAI 230 KV

subject to thiruchengode ss availing tsd

UNJANAI 230 KV

subject to stcms being in service and generation support being extended to dvki ss

LOWER METTUR 1

BHAVANISAGAR MHPH 110 KV MICRO-BSR FEEDER MICRO END

For GRT Annual Relay Tests in 110 KV Micro-Bsr Feeder, Micro End at MHPH / Bhavanisagar

1. During LC period, 110 KV Micro-Bsr Feeder, Micro End breaker only will be hand tripped. The feeder will be radially fed from Bhavanisagar SS end. Hence no SS will be affected.2. During LC period, power evacuation will be done thorough 110 KV Micro-Moyar Feeder. Hence, generation loss will not arise.


ARASUR 230 KV

110 KV Arasur-Palladam# breaker,CT'S ,Control and relay panels


During the L.C period,1)110 KV Arasur -Palladam # loads will be transferred and fed through 110 Arasur - Kaniyur # from 230 KV Arasur SS by closing bus coupler switch at 110 KV Kaniyur SS.

subject to the load transfer being executed

KODIKURICHY 230 KV

Auto-III HV & LV breakers with CTs and all Isolators.

During the L.C period , i)Auto-III will be out of service. ii)Auto-II, Auto-I will cater the SS load;


230 KV LINK I # CT, BREAKER, BUS & LINE SWITCHES


KANARAPATTY 400 KV

400/110KV ICT 4 MAIN, TIE AND LV BREAKERS WITH CT AND TRANSFORMER BAY NOS 412,411 AND 106

110KV LOAD WILL BE SHARED BY ICT 3 AND 5, NO FEEDER OR SS IS AFFECTED


KAYATHAR 230 KV

230 KV Kayathar - CHeckanurani I Feeder, breaker with CT and entire Line

a) For monthly maintenance workb) For tower to tower inspection work

During the LC period, other end also avails LC and there will be no supply in the entire line. Hence no ss affected


DEVIAKURICHI 230 KV

subject to the feeder being kept radial fromts 1 end

THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CTs and Line side isolator maintenance work and Annual Relay Test by GRT wing.

During the LC period the 110KV Kodavasal SS supply will be fed from 230KV SS Thiruvarur and the 110KV Kumbakonam (Sakkottai) SS Supply will be from the 110KV KGTPS Generating station. Hence there will be no interruption of supply to any other SS.

PALAVADI 400 KV

1) 400KV Paalavadi-Thiruvalam - 2 Feeder 2) 400 / 110 KV ICT - 4


No interruption of supply, Load fed through 400KV

Thiruvalam - 1 Feeder and Pennagaram load fed

through 230KV Karimangalam SS


110 KV OKM-Thudiyalur 2 Feeder (Breaker, CT's & Line Switch)

During the LC period,1)110 KV Seeranaickenpalayam and 110 KV Kuniyamuthur SS will be under Total Shut down.2)110 KV OKM-TDLR II feeder loads will be fed from 230 KV TDLR SS.3)Hence no ss will be affected.

llc recommended for thudiyalur ss end


KAYATHAR 230 KV

110 Kayathar - O.T.Patty Feeder, breaker with CT only




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1177 Erode 58998 230 KV For monthly maintenance work During the LC period other end also programmed to avail LC on that day postponed Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1

1178 Chennai 59046 110 KV 16 MVA PR.TR.III Monthly maintenance work 16 Mva pr Tr.I &II will be in service cater the entire 11 kv loads Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 12:00 1 Approval by CBD

1179 Madurai 59082 KDR PH-2 machine No generation in KDR PH-2 POSSIBLE Wed, 23/Aug/2017 6:00 Thu, 24/Aug/2017 18:00 2

1180 Erode 59097 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 repeat of 58763 Repeat

1181 Erode 58596 230 KV KUNDAH PH3 230 KV PH3 TO KARAMADAI FEEDER For monthly maintenance work. Both end open condition, MODS are open condition. possible Wed, 23/Aug/2017 8:00 Wed, 23/Aug/2017 17:00 1 Approved



1184 Erode 58547 230 KV O.K.Mandapam I & II feeder Br & CTs For monthly maintenance works possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 16:00 1 Approved

1185 Chennai 59210 230 KV 50MVA Power Transformer-II Maintenance work While availing LC one transformer will be in service Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 17:00 1 Approval by CBD

1186 Madurai 58561 110 KV For Monthly Maintenance Work POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 13:00 1 SUB TO WIND GEN Approved

1187 Madurai 59246 110 KV NOT POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 15:00 1 DUE TO WIND GEN Not Approved

1188 Chennai 58906 400 KV 400 KV Vallur-I feeder and its equipments 400 KV Vallur -I feeder will not be in service. Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 17:00 1 Approved

1189 Erode 58649 METTUR TPH FOR MONTHLY MAINTENANCE possible Wed, 23/Aug/2017 7:00 Wed, 23/Aug/2017 17:00 1 llow dam level Approved

1190 Madurai 59269 230 KV 230 KV Pasumalai - Kayathar # BKR & CT only. Wed, 23/Aug/2017 9:00 Sun, 27/Aug/2017 14:00 5 Not Approved


1192 Erode 59018 110 KV 110KV Gobi feeder Breaker, CTs and line Isolator. monthly maintenance work possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved SGC

1193 Madurai 59047 230 KV Monthly Maintenance work POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1194 Erode 59052 110 KV GOBI 230 KV possible Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 17:00 1 Approved

1195 Erode 59417 KUNDAH PH1 Unit no : 02 postponed Wed, 23/Aug/2017 8:00 Wed, 23/Aug/2017 17:00 1

1196 Erode 59100 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1197 Madurai 59141 230 KV On 230KV KKDI-KVNR-II # Entire. Disc Replacement work. During the L.C Period the all other 230KV #'s tied with Grid. POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1198 Madurai 59168 230 KV 230 KV Bus B Entire For BUS maintenance POSSIBLE Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 17:00 1 Approved

1199 Madurai 59181 110 KV 110kv RNPM-PGLR # Breaker and CT 1)Monthly maintenance2)Relay testing POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved

1200 Erode 59201 110 KV PYKARA 110KV PYKARA - MOYAR 2 #(ENTIRE LINE) For monthly maintenance work NIL possible Wed, 23/Aug/2017 8:00 Wed, 23/Aug/2017 17:00 1 Approved

1201 Madurai 59215 230 KV EE / O/ 400KV Kayathar has also programmed POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved

1202 Madurai 59261 110 KV POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 SUB TO TOTAL S/D Approved SGC

1203 Erode 59262 110 KV GOBI 230 KV For monthly maintenance work possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved SGC

1204 Erode 59583 230 KV For monthly maintenance works. postponed Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1

1205 Madurai 59319 230 KV 230 KV Checkanurani - Kayathar II feeder entire For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved


1207 Chennai 59394 110 KV ARNI 230 KV Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1208 Chennai 59395 110 KV ARNI 230 KV For Monthly maintenance work. Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1209 Erode 59426 110 KV Monthly Maintenance Work possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1210 Madurai 59467 230 KV 230 KV KAVANOOR-KARAIKUDI # 2 LINE MAINTENANCE WORKS POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

UNJANAI 230 KV

Unjanai-Pudanchanthai 230KV feeder,Breaker, CTs and Line side Isolator only

230 kv singapuram to dvki feeder lc recommended


KADAPPERI 230 KV

Approval by CBD

GENERATING STATIONS

KODAIYAR PH2

1)Exiter cleaning2)55MVA Gen.Tr.& SF6 breaker Mtce.3)Quarterly runner inspection 4)Butterfly valve water filter cleaning & overhauling.

SUB TO GRID CONDITION.LC MAY BE RESTRICTED TO ONE DAY OR IT MAY BE COMBINED DURING SATURDAY AND SUNDAY


110KV Erode III # Breaker, CTs, Isolators and Line side Isolator

subject to both ends availing the lc and the load condition


200MVA, 400/110KV Auto Transformer - 4 with Tie-3

During the above shutdown period the 200MVA, 400/110KV Auto Transformer - 3 will cater the load of 200MVA, 400/110KV Auto Transformer - 4 with out interruption


KAYATHAR 230 KV

110KV KARNTHANERI-NANGUNERI TRACTION FEEDER-II ENTIRE LINE

FOR DEFECTIVE DISC REPLACEMENT AT VARIOUS LOCATION.

DURING THE LC PERIOD THERE WILL BE NO SUPPLY ENTIRE LINE (CONCURRENCE TO BE OBTAINED FROM RAILWAY)

SUB TO CONCURRENCE FROM TRACTION

THUDIALUR 230 KV

1. S N Palayam under total shutdown & Other inter SS will fed from 110 KV OKM - II #2. LC work will be taken one after another

to be availed subject to the load condition one by one

THARAMANI 230 KV

Approval by CBD

Uthumalai 110 KV

a)110KV Uthumalai-Surrandai Feeder Breaker with CTb)110 KV Uthumalai -Auro-Mira Feeder Breaker With CT

No SS affected during the LC period sincea) It is radial upto 110 KV Surrandai Feeder.b) The 110 KV Auro Mira Power Plant is under DC The LC work is to be carried out by the AA/MTCE/110/33-11 KV Uthumalai Grid SS.

SRPUDUR 230 KV

110 KV SRP-SNRI # Breaker CT and Line switch. 110 KV SRP-SNRI # section between SRP - Perungudi

Monthly Mainteanace work,Line Mainteanace work,Annual relay testing work

During the LC period The 110 KV SRP - SNRI # radial from SNRI upto Perungudi (incl). Hence no SS will be affected.

Alamathy 400 KV

For annual relay testing and maintenance works.


GENERATING STATIONS



PASUMALAI 230 KV

Replacement of the existing age old and defective 230KV , 110V DC Operated HBB make SF6 Breaker by the newly drawn CGL Make breaker in 230 KV Pasumalai - Kayathar feeder at Pasumalai 230KV SS, due to persisting gas leak problem in B Phase limb under breaker Open condition.LC could be Entered only for 3 days whereas the actual LC Required is from 23.08.2017 to 11.09.2017

1) The feeder will be kept radial from the other end 2) In the 230 Pasumalai - Kayathar # Bus and Line isolators at Pasumalai SS will be kept opened.

LONG LC: AFTER 230 ANPKM-STER # LC


On 110KV ARNI-SRPudur-II feeder (Section between 110KV ARNI SS and 110KV KKLM SS)

To replace the flash mark disc insulators at Loc.No.19 (Y-Phase)

No ss will be affected. During this LC period 110KV KKLM SS will be radially fed from 230KV SRPudur.


THINGALUR 230 KV

110KV Getticheviur SS availing total shutdown. Other end also availing LC.

subject to getticheviyur ss availing tsd

KAYATHAR 400 KV

230KV Madurai feeder main Breaker (202-52) & CT,CVT only

During the LC period there will be no supply in 230KV Madurai feeder main Breaker (202-52), CT,CVT only. Hence no substation affected.


110 KV PERIYAKODIVERY-GOBI FEEDER,110KVPERIYAKODIVERY-MAYAR PH FEEDER AND 110 KVPERIYAKODIVERY-BAS FEEDER ONE BY ONE

TO CARRTOUT TANDELTA TEST & Maintenance work by AEE/ P&C/GOBI & AEE/o/P.Kodivery

1.110 KV PERIYA KODIVERY -GOBI FEEDER RADIALLY FED FROM GOBI END,SO SUPPLY TO INTER SS MAY FED FROM GOBIEND 2.110 Kv PERIYA KODIVERY -MAYAR FEEDER RADIALLY FED FROM MOYAR END,SO SUPPLY TO 110 KV SHENBAGAPUDUR SSAMY FED FROM MOYAR END.3.CONCURRANCEOBTAINED FROMSE/GEDC/GOBI ANDBAS.4.110 KVPERIYAKODIVERY SSMAY AVAIL TOTALSHUTDOWN

subject to the tsd being realized and the load condition existing after that

GENERATING STATIONS





Auto Transformer I and its HV & LV Breakers with CT’s and Isolators

1.INGUR 110 KV SS TOTAL SHUT DOWN ON THAT DAY2.DEPENDING UPON LOAD CONDITION


KARAIKUDI 230 KV


EACHANGADU 230 KV

The 230 feeder loads & Auto loads will be transferred from 230 KV Bus B to 230 KV Bus A before LC,. Hence No interruption of supply. After completion of work 230 KV B Bus will be Kept in stand by.


During LC period the feeder will be radially fed from PGLR end.hence no interruption to any SS


subject to the other feeder being in service

PASUMALAI 230 KV

1)230 KV Pasumalai - Kayathar #, BKR & CT,LI only. 2)Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree Cutting works and T-T inspection works


PASUMALAI 230 KV

1).110 KV Pasumalai - Arasaradi SC Feeder # Breaker & CT only. 2)Line entire

1)Monthly Maintenance Works of BKR & CT 2) Tree cutting works and T-T Inspection works

1) 110/33-11KV Arasaradi SS will be under shutdown 2) Switch No 1 will be kept open at Pasumalai 110KV SS 3) Hence there is no interruption of Supply to any SS

110 KV Thingalur Feeder Breaker, CTs and line switch with entire line

1.110 KV Getticheviyur SS may avail total shutdown,no other SS will affected2.Other end may also avail lc

subject to getticheviyur ss availing tsd


230KV Unjanai feeder CB, CTs, CVTs, Wave Traps and 230KV isolators.

During LC period230KV Pugalur and Deviakurichy feeders will be kept tied with grid.230KV Unjanaialso availing LC in the same feeder at opposite end.No supply interruption.





SEMBATTY 230 KV

110KV SBT - Udumalpet # Bkr, CTs and section bet. SBT and S.V.Patti

1. Monthly maintenance work2. Tree cutting work

During the LC period the feeder will be radial from other end upto S.V Patty. Hence no interruption to any SS.

SUB TO WIND GEN AND CONCURRENCE FROM ERODE/SLDC

110KV Kannamangalam #,110KV Breaker, CT's & Line Isolators.

For Monthly maintenance work and Disc Insulators replacement work by Lines wing.

110KV Kilpallipattu SS, 110KV Sathumadurai SS availing total shutdown.Hence no interruption of supply

110KV Kaveripakkam #,110KV Breakers, CT's & Line Isolator.

110KV Timiri SS availing total shutdown.Hence no interruption of supply

Udumalpet 110 KV

110 KV UDT –Okm – II #r breaker, CT’s and Section between UDT and Kongalnagaram.


subject to the feeder being kept radial from okm ss end

KAVANOOR 230 KV

SINCE BOTH ENDS LC TO BE AVAILED NO SUPPLY IN THE FEEDER




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1211 Erode 59472 110 KV Erode 110 KV possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved SGC

1212 Madurai 59482 230 KV other end also proposed L.C . POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 16:00 1 Approved

1213 Erode 59775 110 KV 110 KV Northern Bus Entire For monthly maintenance works postponed Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 17:00 1 Not Approved

1214 Erode 59503 230 KV OCC approved possible Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 17:00 1 Approved

1215 Madurai 59507 110 KV MONTHLY MAINTENANCE WORK POSSIBLE Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 14:00 1 Approved

1216 Chennai 59531 230 KV 230KV Singarapet # Maintenance Work Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved


1218 Madurai 59604 110 KV then I 230 KV During the LC 110 KV Uthama palayam SS under shut down POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved


1220 Erode 59619 230 KV 1)During the LC period 230KV UDT Feeder will caters the load. possible Wed, 23/Aug/2017 12:00 Wed, 23/Aug/2017 16:00 1 Approved

1221 Erode 59623 110 KV 110KV BUS COUPLER CB, CT ONLY TAN DELTA measurement work 1)During the LC Period NO SS will be affected. possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 11:00 1 Approved


1223 Erode 59642 110 KV possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved SGC

1224 Chennai 59649 230 KV Auto transformer III HV & LV breakers with CTs For monthly maintenance works Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1225 Erode 60027 110 KV PMI and Jumper tightness checking P.Velur SS total shut postponed Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1

1226 Erode 60029 230 KV 230KV Puthansanthai-Pugalur # line entire Jumper tightness checking Other feeders will cater the load postponed Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1

1227 Chennai 59695 110 KV 110 KV Neyveli TS I – Devaikurichi Feeder – II Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1228 Chennai 58737 230 KV 100MVA AUTO TR-II Monthly Maintenance 110 KV S.P.Koil - # I & II - Tied condition. Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved


1230 Madurai 59803 230 KV 230 KV PSQ - KYTR # entire. During the LC period other end also availing LC. POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1231 Chennai 59897 230 KV 230KV Tie Feeder Breaker & CTs only for monthly maintenance work. hence there will be no interruption of supply please. Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved




1235 Chennai 59964 230 KV 230KV Thiruvalam â€“ Singarapet feeder entire Possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1236 Erode 59971 230 KV 230 KV Thiruvalam # Breaker, CTs & line isolators possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 16:00 1 Approved

1237 Madurai 58747 110 KV 1) 110KV BUS ENTIRE POSSIBLE Wed, 23/Aug/2017 10:00 Wed, 23/Aug/2017 16:00 1 Approved


110 KV ERODE -INGUR III FEEDER BREAKER,CT AND LINE ISOLATOR ONLY

CONDUTING OF RELAY TEST BY AEE /P&C I /ERODE AND MONTHLY MAINTENANACE WORK

DURING LC PERIOD 110 KV INGUR SS WILL BE UNDER TOTAL SHUTDOWN

subject to ingur 110 kv ss availing tsd

ALAGARKOIL 230 KV

230KV ALKL-ALUNDUR feeder breaker ,CT&Line entire

monthly maintenance work& Annual relay testing work by GRT wing/ pasumalai.


PONNAPURAM 230 KV

Subject to the wind generation, 1.110KV PNPM SS GC-II will be feed from 110KV Ingur - II #,2.110KV Maruthur # will be kept radial from 230KV Arasur SS/110KV PDM #,3. Auto Tr. II will be cut 0ff,Hence No SS will be affected.

cannot be issued during high wind season

KARAMADAI 230 KV

400KV PGCIL (Arasur) feeder I main/tie breakers, CT's& line side CVT's and isolators

For monthly maintenance work of 400KV PGCIL (Arasur) feeder I main/tie breakers, CT's& line side CVT's and isolators and for LAs replacement work by L&T

occ approved and srldc to be addressed; subject to the load condition

UDAYATHUR 230 KV

110KV SAMUGARENGAPURAM FEEDER BREAKER, CT & LINE sW

3)There will be no supply to 110kv Samugarengapuram 10 (1) SS suzlon SS. Samugarenagpuram ss proposed to avail SD on 23.08.2017 during the LC period


Thiruvalam 400 KV

A)230KV Singarapet feeder kept in off condition.B)All other feeders (400KV & 230KV) will be in service

ALUNDUR 230 KV

L.C. on 230KV Alundur - Alagarkoil Feeder Breaker CT'S,CVT'S and Line Isolators.

a) Preventive Monthly Maintenance Work. b) Relay testing Work c) Premonsoon Inspection Work.

During the LC period, a) 230KV Alundur - Alagarkoil feeder both end availing Total Shutdown. b) All other 230 KV feeder's will be in service. c) There will be no interruption of supply to any other feeders & ss.


110 KV TNI-Periyar I #(Uthama palaym SS Spurline only)

For the mtce of Line Isolators at Uthamapalayam ss



A) 110KV PATTUKKOTTAI-MADUKKUR FEEDER (VIA: 110/11KV PATTUKKOTTAI URBAN SS), LINE PORTION BETWEEN 110KV PATTUKKOTTAI SS TO 110KV PATTUKKOTTAI URBAN SS.B) 110KV PATTUKKOTTAI-MADUKKUR FEEDER BREAKER, CT's AT 110KV PATTUKKOTTAI SS.

A) FOR PREMONSOON INSPECTION WORK BY AE/LINES/PATTUKKOTTAI.B) FOR ANNUAL RELAY TESTING BY AEE/P&C/THANJAVUR.

1) DURING THE LC PERIOD, 110KV PATTUKKOTTAI URBAN SS SUPPLY WILL BE FED FROM 110KV MADUKKUR SS BY CLOSING THE 110KV LINE ISOLATOR (NO.2) TOWARDS PATTUKKOTTAI AT 110KV MADUKKUR SS. 2) NO INTERRUPTION TO ANY SUBSTATION. 3) 110KV PATTUKKOTTAI- MADUKKUR FEEDER BREAKER HAND TRIPPED AT 110KV PATTUKKOTTAI SS.

ALIYAR 230 KV

230KV ALR- KPH FEEDER CB,CT AND LINE ENTIRE

Monthly mtce work and TAN DELTA measurement work


ALIYAR 230 KV


METTUR AUTO 230 KV

110KV Auxiliary Bus Portion between ABS 1 TO Eastern side

110KV Auxiliary Bus Portion between ABS 1 to ABS2 conductor Replacement Work(Kundah to Zebra)

110KV Main Bus and Auxiliary Bus Portion between ABS 1 TO Western side will be in-service(22.08.2017 08.00Hrs to 23.08.2017 17.00 Hrs continues LC)


ALIYAR 230 KV

110KV ALR- AKY FEEDER CB, CT ONLY AND TAN DELTA TEST

Monthly maintenance work and TAN DELTA measurement work

1)During the LC Period 110 AKY SS Total shutdown.2)Anamalai and Marichanaickenpalayam SS will fed from Pollachi SS.

subject to angalakurichi ss aviling tsd

CUDDALORE 230 KV

The 110 KV Panruti ( R ) SS will be availing total shutdown. The 110 KV Cuddalore – Chitrasur # loads will be transferred to Neyveli – TS -1 # .Hence no interruption of supply

UNJANAI 230 KV

110KV Puagalur-Kabilarmalai # line portion between Villipalayam and Valavanthi SS

to be taken up after commissioning of valavanthi feeder at valavanthi ss

Approved Subject to Commissioning of Valavanthi SS

UNJANAI 230 KV


Approved Subject to TAQA availability

CUDDALORE 230 KV

For Jumper tightness checking at various locations

1)Section between TASL Co Gen and Deviakurichi .(TSD of Veppur And Tholudur )


VEERAPURAM 230 KVTRICHY 230 KV

1. 110KV Trichy - Kovilur feeder breaker, CTs, line isolator and Line portion between 230KV SS Trichy and 110KV Kavalkaranpatti SS.

1. Monthly maintenance works. 2. Premonsoon inspection.

During LC period, 1) 110KV Kovilur feeder Line switch towards Trichy 230KV SS will be kept opened at 110KV Kavalkaranpatti SS. 2) 110KV Kovilur feeder Line switch towards Kavalkaranpatti SS will be kept opened at Trichy 230KV SS. 3)110KV Manapparai SS availing total shut down for monthly maintenance works. 4) 110KV Trichy - Kovilur feeder will be radial from 110KV Kovilur SS up to 110KV Kavalkaranpatti SS. 5) All other 110KV feeders will be in tied condition. 6) There will be no interruption of supply to any of the intermediate SS. 7) Necessary concurrence obtained from 230 KV Renganathapuram SS.


ANUPPANKULAM 230 KV

For replacement of flash over disc at Loc. No. 214


MOSUR 230 KVKARIAMANGALAM 230 KV

1.110KV Karimangalam feeder breaker, CTs,Line switch 2.Auto Transformer -III with HV- III Breaker and CTs & LV- III Breaker CTs and Auto III Transfer Switch 3.Shoolagiri 230KV feeder breaker CT`s, Line switch, and Transfer Switch and Line Between 230 KV Karimangalam SS to 230 KV Shoolagiri SS.4. 230 KV TBC ( Bus Coupler) Breaker with isolators for Transfer Switch maintenance Purpose.

Carryout Monthly SS Maintenance works by maintenance wing and Lines wing Programed in 230 KV Palavadi (Already in Mettur #) Jumper Bolt Nut's Tightness Work at Various locations.

110 KV Kariyamangalam availing total shut down. Expected load relief : 50 MW. The station loads will be managed by keeping Auto Transformer - I & II and 230 KV Palavadi (Already Mettur #) feeder in service and also 2 No's Grid feeder in service.

occ approved for shoolagiri feeder and the rest are subject to the load condition existing

110 KV Arani - Kanamangalam feeder in between 110 KV Kilpalipet and 110 KV Thorapadi SS

For EHT Line Maintenance work(At loc no:8,9 defective disc support insulator replacement work)

During the period of LCi. 110 KV Arani - Kanamangalam feeder line LC in between from 110 KV Kilpalipet and 110 KV Thorapadi SS. ii. The 110KV Kilpalipet SS & 10KV Sathumadurai SS are availing total shutdown.Hence there will be no interruption of supply please.

110 KV Arani - Kaveripakkam feeder(LC in between 110 KV Timiri SS and 110 KV Kaveripakam SS).

For attending arcing horn tightness checking work.

During the period of LCiii. 110 KV Arani - Kaveripakkam line LC in between from 110 KV Timiri SS to 110 KV Kaveripakam SS.iv. 110 KV Timiri SS is availing total Shutdown.Hence there will be no interruption of supply please.

Thiruvalam 400 KV

For replacement of damaged disc at Loc 334 & 335

During the period of LC i. 230KV Thiruvalam â€“ Singarapet feeder Breakers both end will be in â€œ OFFâ€ condition at 400KV �Thiruvalam & 230KV Singarapet SS. ii. All other 230 KV feeders 230KV Link I, Link II, S. P.Koil feeders are in service.Hence there will be no interruption of supply please

SINGARAPET 230 KV



subject tot the load condition existing

TRICHY 230 KV

1. All 110KV bus isolator maintenance work, 2. 110KV bus coupler alignment checking and maintenance work. 3. Attending glow in 110KV Punalkulam feeder Bus isolater towards Busside B phase fixed contact. 4. Attending glow in Bus isolator of LV I breaker towards breaker side in R phase.

1. 230KV HV 1&2, LV 1,2&3 breakers will be in tripped condition. 2. All the three Auto Transformers will not be in service. 3. All the 7nos. 110KV feeder breakers will be in tripped condition at Trichy 230KV SS. 4. 110KV Trichy link I & II, 110KV Trichy - Alundur I & II , 110KV Trichy - Srirangam and 110KV Trichy - Punalkulam feeder will be kept radial from respective other end. 5. 110KV Trichy - Kovilur feeder will be radilal from Renganathapuram 230KV SS upto 110KV Kavalkaranpatti SS. 6. 110KV Manaparai SS availing total shutdown. 7.Supply to Trichy 110 KV Grid SS Bus will be fed through 110KV Samayapuram - Trichy II feeder from 230KV Thatchankurichi SS and 110KV Pugalur - Ayyermalai - Trichy feeder from 230KV Pugalur SS. 8.If necessary supply will be extended to 110KV Trichy grid SS from 230KV Alundur SS through the bypass arrangement switches between 110KV Alundur I feeder and 110KV Trichy Link I feeder (switch no.48 & 49). 9. No interruption of supply to any other SS. 10. Necessary concurrence obtained from SE/O/Trichy and the respective other 230 KV SS and 110 KV Grid SS/Trichy. 11. All 230KV Feeders will be in tied condition.


Singarapet 110 KV

110KV METTUR II # SF6 BREAKERS, CT'S AND ENTIRE LINE


DURING THE LC PERIOD,1) 110KV MECHERRY SS TOWARDS SINGARAPET SIDE ISOLATORS KEPT OPEN AND BLINK FOR OPENING BOTH END. 2) 110KV METTUR # II RADIAL FROM OTHER END3) HENCE THERE IS NO INTERRUPTION OF SUPPLY

subject to the feeder being kept radial from mettur ss end



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1239 Erode 60044 BHAVANISAGAR RBCPH UNIT I possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 18:00 1 already under lc Approved

1240 Erode 60116 230 KV 230 KV Deviyakurichy – Singapuram Feeder jumper tightness work possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1241 Erode 58763 110 KV INGUR 230 KV 110 kv ingur-erode III # entire. possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 14:00 1 Approved

1242 Madurai 58771 230 KV 230KV Transfer Bus Section Monthly maintenance Work POSSIBLE Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved

1243 Erode 58805 230 KV 230KV Deviyakurichi feeder/ CT,Breaker,Isolators. Monthly maintenance 1.Monthly maintenance at both ends. possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved SGC


1245 Erode 58849 230 KV For Monthly Maintenance work 230 KV STCMS & Valayapatty Feeders will be in service. possible Wed, 23/Aug/2017 9:00 Wed, 23/Aug/2017 17:00 1 Approved SGC

1246 Erode 400 KV 230KV Palavadi-Guruparapally # For commissioning & charging activity Possible Wed, 23/Aug/2017 8:00 Wed, 23/Aug/2017 17:00 1 Approved SGC

1247 Erode 58655 230 KV 230KV ANTHIYUR-GOBI ENTIRE FEEDER Postponed Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1248 Erode 59209 230 KV GOBI 230 KV For monthly maintenance work Postponed Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1249 Erode 59829 230 KV PUSHEP 230 KV PUSHEP - KARAMADAI feeder Monthly maintenance works postponed Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1250 Erode 58668 230 KV postponed Thu, 24/Aug/2017 0:00 Thu, 24/Aug/2017 0:00 1 Approved SGC

1251 Erode 58999 110 KV For Monthly maintenance work During the LC period other end also programmed to avail LC on that Day postponed Thu, 24/Aug/2017 0:00 Thu, 24/Aug/2017 0:00 1

1252 Madurai 59144 230 KV On 230KV KKDI-NT.Kudi # Bkr & Ct's. For Monthly Mtc work. During the L.C Period all other 230KV #'s tied with Grid. NOT POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Not Approved

1253 Erode 58548 230 KV 23/110 KV Auto Tr-II with HV & LV Breaker & CTs For monthly maintenance works Other Two Auto Tr. I & III will share the loads possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 14:00 1 Approved

1254 Madurai 58634 230 KV For Monthly Maintenance Work. POSSIBLE Thu, 24/Aug/2017 10:00 Thu, 24/Aug/2017 17:00 1 Approved

1255 Madurai 58574 230 KV TTPS 230KVTTPS-MADURAI FEEDER ENTIRE POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1256 Madurai 58874 230 KV Auto Transformer III HV III, LV III and CTs maintenance work. POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1257 Erode 58915 230 KV For monthly maintenance works. possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1258 Erode 58645 230 KV METTUR TPH FOR MONTHLY MAINTENANCE possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1259 Erode 58665 110 KV 110KV BARRAGE PH-III ENTIRE FEEDER. possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 15:00 1 Approved SGC

1260 Madurai 58968 230 KV On 230KV TTPS - MADURAI feeder entire For Tower to Tower Inspection work. No ss will be affected. POSSIBLE Thu, 24/Aug/2017 0:00 Thu, 24/Aug/2017 0:00 1 Approved

1261 Madurai 58970 110 KV For monthly maintenance work POSSIBLE Thu, 24/Aug/2017 10:00 Thu, 24/Aug/2017 15:00 1 Approved

1262 Madurai 58971 230 KV On 230KV TTPS - MADURAI feeder entire For Tower to Tower Inspection work. No ss will be affected. POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1263 Erode 59066 110 KV To carryout Monthly maintenance works. possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved SGC

1264 Madurai 59096 KDR PH-1 Machine No Generation in KDR PH-1 POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1265 Madurai 59217 230 KV EE/ EM - III /TTPS has also programmed POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 14:00 1 Approved

1266 Chennai 59305 230 KV Auto Transformr I 100 MVA Possible Thu, 24/Aug/2017 10:00 Thu, 24/Aug/2017 17:00 1 Approved

1267 Madurai 59322 230 KV 230 KV Checkanurani - Amuthapuram feeder entire For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved


1269 Erode 59640 110 KV KUNDAH PH3 110 KV PH2 TO THUDIYALUR FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. postponed Thu, 24/Aug/2017 8:00 Thu, 24/Aug/2017 17:00 1

1270 Madurai 59323 110 KV 110KV SBT - AKL I # Bkr and CTs Monthly maintenance work POSSIBLE Thu, 24/Aug/2017 10:00 Thu, 24/Aug/2017 17:00 1 Approved

1271 Madurai 59325 110 KV Tree cutting work POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1272 Chennai 59337 230 KV Monthly maintenance work Possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1273 Madurai 59351 110 KV PERIYAR For monthly maintenance work. POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 13:00 1 Approved

1274 Madurai 59378 230 KV Monthly Maintenance Work POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

GENERATING STATIONS

LOWER METTUR 1

For GRT Annual Relay Tests in Unit I at RBCPH / Bhavanisagar

1. RBCPH Unit I is already under LC for TGB & stub shaft seal assembly rectification works.2. During LC period, it is expected that PWD demand will only be 5 c/s, being released through PWD sluice. Hence generation loss will not arise.

DEVIAKURICHI 230 KV

1) The Deviakurichy & Singapuram both 230KV SS availing Breaker, CT’s maintenances work .2) There will be no interruption any other SS.


premonsoon inspection and jumper tightening work by ae/lines/ingur wing.

no ss will be affected during LC period.ingur 110 kv ss availing total shutdown on 3/08/2017.


KODIKURICHY 230 KVSINGAPURAM 230 KV

subject to stcms being in service and its support being extended to deviakurichi ss end

KAYATHAR 230 KV

230 KV Kayathar - Checkanurani II Feeder, breaker with CT and entire line

a) For Monthly maintenance workb) Tower to tower inspection work

During the LC period other end also avails LC and there will be no supply in the entire line. Hence no ss affected.


DEVIAKURICHI 230 KV

230 KV Deviyakurichy – Singipuram # Breaker, CTs and Line side isolator both end.

subject to stcms being in service and its support being extended to deviakurichi ss end

PALAVADI 400 KV



ANTHIYUR 230 KV

FOR MONTHLY MAINTENANCE WORK AND ANNUAL RELAY TESTING WORK BY P&C WING

DURING THE LC PERIOD OTHER END ALSO PROGRAMMED TO AVAIL ON THE ABOVE FEEDER


230 KV GOBI-Anthiyur Feeder Breaker, CTâ€™s and line switch with entire line

1.230 KV Pallakapalayam feeder,230 KV Anthiyur feeder and 230 KV MTPS II Feeder are in service,it may cater the load2.Other end may also avail LC


230 KV Pusheph - Karamadai feeder in Tripped condition,230 KV Bus and Line Isolators in open conditon

230 kv ph 3 to karamadai feeder lc recommended

ANTHIYUR 230 KV

230KV FEEDERS MTPS-I,GOBI,230KV BUS COUPLER AND AUTO TRANSFORMER I&II ONE BY ONE


DURING THE LC PERIOD 230KV MTPS-I AND GOBI FEEDER WILL BE KEPT IN RADIAL CONDITION FROM OTHER END.

the tan delta measurements are to be scheduled with the regular maintenance lc

UNJANAI 230 KV

Unjanai- Elanagar 110KV feeder,Breaker,CTs and Line side Isolator only

salem auto tr lc recommended


KARAIKUDI 230 KV


THUDIALUR 230 KV


VEERANAM 230 KV

Power Transformer-III.HV-III,LV-III and 33Kv feeders Micon-1.2&6.

During the LC period there will be no supply in Power Transformer-III.HV-III,LV-III and 33Kv feeders Micon-1.2&6. Concurrence Obtained from SE/NCES/TIRUNELVELI.


Maitenance work and Annual testing of breaker & WBCT's

Both end breakers to be tripped conditionBoth end Bus&Line switches opened conditionBoth end earth switches closed condition


THIRUVARUR 230 KV

During the Auto transformer-III LC period, the Auto Transformer - I & II will be in service and Load will be shared by Auto Transformer I & II. Hence there will be no interruption of supply. Auto Load 40 MW for each.



230/110 KV Auto Transformer II (HV & LV Breakers, CTs & LAS)

During the LC period,1)110 KV OKM-TDLR I & II feeder loads will be transferred to 230 KV TDLR SS (if necessary)2)The remaining two Auto transformers are in service to cater the ss loads with support of wind generation.

subject to the wind generation support being available

230KV MTPH - AUTO SS FEEDER BREAKER & ITS CT'S

DURING THE LC PERIOD THE OTHER 230KV FEEDER ARE IN SERVICE AND THE PWD DEMAND IS MEET OUT THROUGH PWD.


ANTHIYUR 230 KV

FOR MONTHLY MAINTENANCE OF CT,BREAKER AND LINE SWITCH AND ANNUAL RELAY TESTING WORK BY P&C WING

DURING THE LC PERIOD 110 KV CHENNAMPATTI SS PROGRAMMED TO AVAIL TOTAL SHUT DOWN AND BARRAGE-III END ALSO PROGRAMMED TO AVAIL LC ON SAME DAY.

subject to chennampatti ss availing tsd



PERAMBALUR 230 KV

110KV Kallakudy-II(Thuraiyur) feeder Breaker CT's only

During the above LC period 1)110KV Thuraiyur Feeder Loads will be transfer to 110KV Perambalur -II Feeder of Kallakudy Grid SS and also 110KV Thuraiyur SS avaling total shutdown




LOWER METTUR 3

110KV BPH 3-Anthiyur # breaker, CTs & Line isolators only.

During the LC period (1) 110KV BPH 3-BPH 2 # and 110KV BPH 3-BPH 4 # will be in service.(2) Unit-1, 2 will be in service/standby as per the PWD Demand.(3) On the same day, Anthiyur 230 KV SS also programmed to avail LC on 110 KV BPH 3- Anthiyur # at Anthiyur 230 KV SS end. (4) On the same day 110KV Chennampatti SS to be programmed Total shutdown.

subject to chennampatti ss availing tsd

GENERATING STATIONS

KODAIYAR PH1

Black washing of UGB , LGB and oil coolers


PASUMALAI 230 KV

1)230 KV Pasumalai - TTPS #, BKR & CT,LI only. 2)Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree Cutting works and T-T inspection works



GRT Annual Relay Test and Monthly Maintenance work, CT Clamp, and Bolt Nuts replacement work.

Concurance to be obtained for 1/2 an hour Supply interupption from M/s. bhatiya ,110KV Panjetty SS back feeding arrangement from manali 230 KV SS & 110kv periyapalayam SS back feeding may be arranged from alamathy 400 kv ss

Subject to Bhatiya concurrence




A)230KV NEMMELI THIPPIYAKUDI-KARAIKUDI FEEDER BREAKER, CT's AND LINE ISOLATOR. B)230KV NEMMELI THIPPIYAKUDI-KARAIKUDI FEEDER.

A) MONTHLY PREVENTIVE MAINTENANCE WORK BY AEE/MTC/ NEMMELI THIPPIYAKUDI. B) PREMONSOON INSPECTION WORK BY AE/LINES/PATTUKKOTTAI.

1) DURING THE LC PERIOD 230/110KV NEMMELI THIPPIYAKUDI SS RADIALLY FED FROM 230KV THIRUVARUR SS. 2) NO INTERRUPTION TO ANY SS AND ALL OTHER FEEDERS ARE TIED CONDITION. 3) IF NECESSARY, 110KV N T KUDI-THANJAVUR FEEDER TIE WILL BE OPENED AT 230KV N T KUDI SS.




SEMBATTY 230 KV



SEMBATTY 230 KV

110KV SBT - Udumalpet # sec. bet. PAppampatti and M.N.Patti

During the LC period, Thalaiyuthu SS is availing total shutdown and the feeder will be radial from SBT upto Pappampatti SS and radial from other end upto M.N.Patti SS. Hence no interruption to any SS.



230 KV Tiruvannamalai-Singarapet #, Breaker, CT's and Line Isolator

During the period of L/C time,1. 230 KV T.V.Malai-Singarapet # will be OFF condition at both ends.2. Other 2 Nos 230 KV T.V.Malai-Neyveli & Villupuram # will be in service. Hence there is no interruption of supply please.

110 Kv Periyar - Suruliyar feeder Breaker with CTs and Line switch only.

During the LC period the entire feeder will be shutdown condition. No SS will be affected because there is no SS in the feeder.


AMUTHAPURAM 230 KV

230KV Amuthapuram-checkanoorani Feeder with Breakers,CTs and its isolators

1) During the LC period there will be NO supply in this feeder. 2) Other end also avail LC on same day. 3) Concurrence obtained from SE/NCES/TIN.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1275 Erode 59776 230 KV 230 KV Southern Bus Entire For monthly maintenance works postponed Thu, 24/Aug/2017 10:00 Thu, 24/Aug/2017 17:00 1 Postponed

1276 Erode 59455 110 KV 110KV Salem – Singapuram II feeder entire Tension point jumpers checking work possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved SGC

1277 Erode 59473 110 KV Erode 110 KV DURING LC PERIOD NO SS WILL BE AFFECTED possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1278 Madurai 59484 110 KV TREE CLEARENCE WORK POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 16:00 1 Approved


1280 Erode 59508 110 KV During LC period 110KV IrumbaraiSS will be under total shutdown possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 14:00 1 Approved SGC

1281 Madurai 59509 230 KV MONTHLY MAINTENANCE WORK POSSIBLE Thu, 24/Aug/2017 10:00 Thu, 24/Aug/2017 15:00 1 Approved

1282 Erode 59511 230 KV Monthly Maintenance work possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1283 Erode 60099 110 KV 110 KV Sankari I # CT Breaker For monthly maintenance Radially fed from other end postponed Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1

1284 Erode 59661 230 KV 230KV MTPH Feeder Monthly maintenance work During the LC period other 230KV feeders will be in service. possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1285 Madurai 60126 230 KV Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1286 Erode 59665 400 KV MTPSII 400KV KARAMADAI-II FEEDER possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved


1288 Chennai 59697 110 KV 110 KV Echangadu – Virdhachalam Feeder Possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1289 Chennai 59698 110 KV 110 KV Echangadu – Virdhachalam Feeder Possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1290 Madurai 59804 230 KV 230 KV TTPS - PSQ # entire. For premonsoon inspection work. During the LC period other end also availing LC. POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 18:00 1 Approved

1291 Madurai 59859 230 KV Auto Transformer III POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1292 Chennai 59924 230 KV 230 KV Suguvarchatram -Oragadam Line mtce Work 230 KV Sriperumbudur and 230 KV S.p.Koil Feeder will be in service Possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved



1295 Erode 60034 110 KV 110 KV Sankagiri-Sankagiri RS # I line entire PMI and Jumper tightness checking Other feeder will cater the load possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1296 Erode 60045 BHAVANISAGAR RBCPH UNIT II possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 18:00 1 Approved

1297 Madurai 60106 230 KV For monthly maintenance only POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 14:00 1 Approved

1298 Erode 58806 110 KV 110 KV Salem -II feeder/ CT,Breaker. Monthly maintenance possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved

1299 Madurai 58814 110 KV For monthly maintanence work POSSIBLE Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved


1301 Erode 58850 230 KV For Monthly Maintenance work possible Thu, 24/Aug/2017 9:00 Thu, 24/Aug/2017 17:00 1 Approved


1303 Chennai 59185 230 KV 230KV BUS B i)All 230KV feeders & Auto tr's are transferred to BUS To be discuss Fri, 25/Aug/2017 9:00 Fri, 25/Aug/2017 17:00 1 Approved

1304 Chennai 58708 110 KV 110KV SPR-Thiruvallur Feeder Quarterly Maintenance Work Possible Fri, 25/Aug/2017 9:00 Fri, 25/Aug/2017 17:00 1 Approved

1305 Erode 59436 110 KV 110 KV Elavanthy # Breaker ,CT's and line entire Possible Fri, 25/Aug/2017 9:00 Fri, 25/Aug/2017 17:00 1 Approved SGC

1306 Erode 60077 230 KV Auto transformer.NoIII , HV.III, LV.III Monthly Maintenance Possible Fri, 25/Aug/2017 9:00 Fri, 25/Aug/2017 17:00 1 Approved




1310 Madurai 59607 230 KV then I 230 KV 230 KV Theni – Moozhiyar # Breaker with CT.& Line OCC has already approved for both end LC Sat, 26/Aug/2017 0:00 Sat, 26/Aug/2017 0:00 1 Approved

1311 Chennai 58607 110 KV 110KV SVC - Palayaseevaram Feeder entire Monthly maintenance work To be discuss Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

PONNAPURAM 230 KV

Subject to the wind generation, 1.110KV Thungavi # will be will be kept radil from 230KV Udt SS / 110KV Poolavadi #, 2.110KV Pethappampatty # will be kept radil from 230KV Udt SS / 110KV PNPM #, 3.110KV Ingur-I & II will be kept radial from other end,4. Auto Trs. I&III will be cut off, 5. Hence Load will be with limits of other one Auto Tr.& No SS will be affected.

cannot be issued during wind season without back down

SALEM AUTO 230 KV

1. 110KV Salem – Singapuram II feeder breakers kept hand tripped at both ends. 2. 110KV Salem – Singapuram II feeder bus and line switches kept opened at both ends.3. Mettupatty 110KV SS is availing TSD on that day.4. There will be no interruption to any SS.

subject to mettupatty ss availing tsd

110 KV ERODE -BKB -I FEEDER BREAKER CT AND LINE ISOLATOR ONLY

CONDUCTING ANNUAL RELAY TEST BY AEE/P&C-I/ERODE AND MONTHLY MAINTENANCE WORK


ALAGARKOIL 230 KV

110KV Alkl-karaikudy # section between thaniamangalam SS and thiruppathur SS.

up to thiruppathur SS will be fed from karaikudy , upto thaniamangalam SS will be fed from ALKL.


KARAMADAI 230 KV

110KV Karamadai- Gobi feeder breaker, CT,s& CVT's

For monthly maintenance work of 110KV Karamadai- Gobi feeder breaker, CT,s& CVT's and to carry out PMI work by AE/LInes/TPR section between Kuppepalayam- Pasur- Kanurpudur& Puliampatty and P&C testing work

During LC period 110KV Kuppaepalayam, 110KV Pasur, 110KV Kanurpudur& 110KV Puliampattyss will be under total shutdown

subject to the tsd relief being realized

KARAMADAI 230 KV

110KV Karamadai- Irumbarai feeder breaker, CT's& CVT's

For monthly maintenance work of 110KV Karamadai- Irumbarai feeder breaker, CT's& CVT's and P&C testing work

subject to irumborai ss availing tsd

UDAYATHUR 230 KV

230KV UDAYTHOOR-KAYATHAR FDR.BREAKER, CT,CVT&LINE SW

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO ENTIRE FEEDER. OTHER END ALSO LC APPLIED


SALEM AUTO 230 KV

100MVA Auto Transformer-III, HV-III, LV-III Breakers & their CTs and 110KV Singapuram Feeder-I Breakers, CT's and Line Isolators.

1. 2Nos. 100MVA Auto Transformer-I & II will be in service 2. 110KV Singapuram feeder-II will be fed radially from other end. 3. Mettupatty 110KV SS will be availing total shutdown. 4. There will be no interruption to any SS or feeder.



salem auto tr lc recommended


METTUR AUTO 230 KV


ALUNDUR 230 KV

Revised LC on 230KV Alundur - Paramathy Feeder Breaker, CT's, CVT's and Line Isolators.(Alundur End Only)

a)Monthly Preventive Maintenance work. b)Relay Testing Work.

During the LC period, a)Alundur End Only LC work. b)All other 230 KV feeders will be in service. c)There will be no interruption of supply to any other feeders.


MONTHLY MAINTENANCE WORKS AS APPROVED BY OCC.

UNIT IN SERVICE. ALL 400KV FEEDER KARAMADAI-I, PALAVADI-I&II AND ICT-I&II ARE IN SERVICE.ALL 230KV FEEDERS EXCEPT THINGALUR FEEDER ARE IN SERVICE.

occ approved and subject to the load condition existing

ALIYAR 230 KV

230/110KV AUTO TRANSFORMER-II WITH HV AND LV CB, CT ONLY.

Quarterly maintenance work and TAN DELTA measurement work in HV and LV CT.

1)During the LC Period 230/110KV AUTO TRANSFORMER-II load will be shared by AUTO TRANSFORMER-I.

subject to the other auto tr loading limit

CUDDALORE 230 KV

Checking of jumper Tightness at Railway crossing locations at loc.no.3 & 4.

Section between SASl CO- Gen and Eachangadu SS.Nil supply interruption

CUDDALORE 230 KV

Checking of jumper Tightness at Railway crossing locations at loc.no.3 & 4.

Section between SASl CO- Gen and Eachangadu SS.Nil supply interruption

ANUPPANKULAM 230 KV


VALUTHUR 230 KV

For Attending Auto Transformer III HV and LV breakers and it's CT's and isolators Monthly Maintenance work.

During the LC period Auto Transformer I & II will be in service. Hence there is 'no' interruption in power evacuation


S.P.KOIL 230 KVSINGARAPET 230 KV

230 KV Tiruvannamalai # Breaker & CTs & line isolators




TRICHY 230 KV

110 KV Trichy – Punalkulam feeder Breaker , CTs , line isolator and line portion between 230 KV, Trichy SS and 110 KV Mathur SS.

a) For monthly maintenance works. b) Pre monsoon inspection

During the LC period , a) 110KV Trichy - Punalkulam feeder will be radially fed from Punalkulam 110 KV Grid SS upto 110KV Mathur SS. b) 110 KV Punalkulam feeder line switch at 110 KV Mathur SS towards 230 KV Trichy SS will be kept open. c) 110KV Mathur SS also availing total shutdown. d) Necessary concurrence obtained from other end 230KV Tanjore SS. e)All other 110KV feeders will be In tied condition. f) No interruption of supply to any of the SS.


UNJANAI 230 KV

other feeder will be in service

GENERATING STATIONS

LOWER METTUR 1

For GRT Annual Relay Tests in Unit II at RBCPH / Bhavanisagar

During LC period, it is expected that PWD demand will only be 5 c/s, being released through PWD sluice. Hence generation loss will not arise.

other units will be in service / standby

SANKANERI 230 KV

230/33KV PowerTransformer-I HV&LV Breakers,CTs only.

During the LC Period PowerTransformer-I will not beinservice.PowerTransformer-II&III willbe Carriedout the EntireLoad.


SINGAPURAM 230 KV

1.Monthly maintenance at both ends2.Intermediate 110KV Mettupatty SS TSD is on( 24.08.2017)

subject to mettupatty ss availing tsd


On 110KV TTN-Sipcot-I feeder breaker with CT bus and line side switches

No SS will be affected.During this LC period 110KV vagaikulam SS & 110 KV Kombukaranatham SS will be radially fed from 230KV meelavitan SS.


KAYATHAR 230 KV

230 KV kayathar - Udayathur Feeder, Breaker with CT and entire line

a) For Monthly Maintenance workb) Tower to Tower inspection work



DEVIAKURICHI 230 KV

100 MVA Auto Transformer – I ,HV & LV Breakers and CTs

Auto Transformer II will be in service. 110 KV Deviakurichy-Singipuram feeder I and II will be kept radial from Singipuram 230kV SS end

subject to the other auto tr loading limit

ALUNDUR 230 KV

230KV Alundur - Paramathy Feeder Breaker, CT's, CVT's and Line Isolators.(Alundur End Only)

a)Monthly Preventive Maintenance work. b)Relay Testing Work.

During the LC period, a)Alundur End Only LC work. b)All other 230 KV feeders will be in service. c)There will be no interruption of supply to any other feeders.

LC APPD IN 133 OCC VIDE ITEM NO.137 ON 24.8.17

ORAGADAM 230 KV

Quarterly Maintenance & Tightness of all jumpers


During the period of shutdown SPR-Thiruvallur feeder is in ideally charged condition

PALLADAM 230 KV

To carryout monthly maintenance work by AE/M/Palladam and Premonsoon line inspection work by AE/Lines/Palladam

1)110 KV Elavanthy and Pongalur SS availing total shutdown2)No other SS will be affected

Sub to 110 KV Elavanthy and Pongalur SS availing total shutdown

UDUMALPET 230 KV


Sub to other autos load condition

KAYATHAR 230 KV

110KV KAYATHAR-GANGAIKONDAN FEEDER SEC B/W GANGAIKONDAN&TALAYUTHU

FOR JUMPER TIGHTNESS CHECKING WORK AT VAROUS LOCATIONS

DURING THE LC PERIOD,GANGAIKONDAN SS WILL BE RADIALLY FED FROM KAYATHAR HENCE NO SS AFFECTED.

LC MAY BE PROGRAMMED ON 26.08.2017

PUDUKOTTAI 230 KV

230 KV PUDUKKOTTAI-ALUNDHUR FEEDER BREAKER, CT, CVT, ISOLATORS AND 230 KV EHT LINE

FOR MONTHLY MAINTENANCE OF BREAKER, CT, CVT, ISOLATORS AND 230 KV EHT LINE AND GRT TESTING WORKS

PUDUKKOTTAI 230 KV SS LOAD WILL BE MAINTAINED FROM 230 KV KARAIKKUDY PG FEEDER AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS. OTHER END ALSO AVAILING SHUTDOWN.


ALUNDUR 230 KV

230KV Alundur - Pudukkottai Feeder breaker, CT'S, CVT'S and Line Isolators.

a)Monthly preventive maintenance work. b)Premonsoon inspection and tree cutting work. c)Relay Testing Work.



For monthly Mtce of entire Line. Line Monthly Mtc and premonsoon inspection

APPROVED IN 133 OCC VIDE ITEM NO.144 ON 26.08.2017


During the above shutdown period the 110KV SVC - Palayaseevaram feeder will be out of service



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days


1313 Madurai 58558 110 KV 110KV Sakottai feeder(bay104) POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 14:00 1 SUB TO TOTAL S/D Approved SGC

1314 Madurai 58562 110 KV 110 Kv Veerasigamani Feeder breaker with CT For monthly Maintenance Work POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 12:00 1 Approved

1315 Madurai 58582 110 KV PAPANASAM 110KV PPM- SVLR feeder-1 breaker with CT. POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 12:00 1 Approved

1316 Madurai 58880 110 KV 110KV Thiruvarur - T.R.Pattinam feeder POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1317 Erode 58917 110 KV 110 KV OKM-Thudiyalur 1 Feeder (Breaker, CT's) For monthly maintenance works Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 14:00 1 Approved

1318 Erode 58670 110 KV 110KV ANTHIYUR ENTIRE FEEDER Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 12:00 1 Approved SGC


1320 Chennai 58674 230 KV 230 KV Echur - Kalpakkam # Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1321 Madurai 58987 230 KV For monthly maintenance work. POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1322 Madurai 59002 110 KV KUTTALAM POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

1323 Chennai 59029 110 KV 110KV S.P.Koil - Kadapperi feeder Jumper checking work. Possible Sat, 26/Aug/2017 5:00 Sat, 26/Aug/2017 12:00 1 Approved

1324 Chennai 59050 230 KV 100 MVA AUTO TR.III Monthly maintenance work 110 kv s p koil # and korattur-I Radial from other end Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 12:00 1 Approved

1325 Madurai 59058 110 KV 110KV SR Pudur # 2 110KV SR Pudur # 2 radial from SR Pudur to KDR end POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1326 Erode 59063 110 KV GOBI 230 KV 110 KV Periyakodiveri - Gobi feeder Radial fed from Gobi 230 KV SS end Possible Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1327 Erode 59101 110 KV INGUR 230 KV DEPENDING UPON LOAD CONDITION Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1328 Madurai 59148 110 KV During the L.C Period the 110KV KKDI SS Under TSD. POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved SGC

1329 Madurai 59163 110 KV For monthly maintenance purpose. POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 14:00 1 SUB TO WIND GEN Approved

1330 Madurai 59169 110 KV For MONTHLY MAINTENANCE WORK POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 17:00 1 Approved


1332 Erode 59202 PYKARA UNIT 6 For monthly maintenance work NIL Possible Sat, 26/Aug/2017 8:00 Sat, 26/Aug/2017 17:00 1 Standby unit Approved

1333 Chennai 59212 230 KV 230kv Mylapore UG feeder Maintenance work Other Four 230kv feeders will be in service Possible Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 17:00 1 Approved

1334 Madurai 59248 110 KV Tree clearance work POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1335 Madurai 59263 110 KV Maintenance Works of BKR & CT,LI EE/ O/ Kinnimangalam has also programmed POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 14:00 1 Approved SGC

1336 Erode 59267 230 KV GOBI 230 KV Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Sub to load Approved

1337 Madurai 59324 110 KV 110 KV Kinnimangalam-PSQ-I feeder For LMW During LC period there will be no supply in the entire feeder POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1338 Madurai 59326 110 KV For LMW During LC period there will be no supply in the entire feeder POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC


1340 Madurai 59328 110 KV 110KV SBT - PSQ # Bkr, CTs only Monthly maintenance work POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 16:00 1 Approved




1344 Madurai 59369 230 KV Monthly Maintenance Work. POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 17:00 1 Approved

ACHRAPAKKAM 230 KV

110KV Kodikurchi- Tenkasi-Papanasam feederSection between ( Kadayam-Rastha -Papanasam)

Defective disc replacement work at location No. 32&33 .

1.110 KV Tenkasi SS ,110 KV Keelapavoor ,110 KV Shencottah and 110 KV Kadayam SS will be fed from Kodikuruchi SS and 110 KV Rastha SS will be fed from Kayathar SS by closing the Buscoupler isolator at Rastha SS end ,2.110 KV isolator towards Kadayam will be kept opened in Rastha SS and Papanasam Power House and 110 KV isolator towards Papanasam and Rastha will be kept opened in Kadayam SS .Hence no SS will be affected .

kumbakonam 230 KV

Monthly maintenance of feeder breaker and isolator

During the LC period there will be no interruption to any SS as 110KV sakottai ss will be under total shut down

Uthumalai 110 KV

No SS affected since total shut down to be availed at 110 kv Veerasigamani SS between 9.00 hrs to 13.00 hrs.The LC work is to be carried out by the AEE/Mtce/ 110/33-11 KV Uthumalai grid SS.

110KV PPM- SVLR feeder-1 breaker with CT maintenance work.

Present PWD demand is 250 CUSECS . During the LC period the feeder will be radial from other end.

THIRUVARUR 230 KV


During the LC peirod the 110KV Thiruvarur - T.R.Pattinam feeder is an idle feeder (Radial from Thiruvarur end). Hence there will be no interruption of supply to any other SS.


During the LC period, 110 KV OKM-TDLR I feeder kept radial from 230 KV TDLR SS.Hence no ss will be affected.

Sub to #1 kept radial from TDLR230

ANTHIYUR 230 KV

FOR MONTHLY MAINTENANCE OF CT,BREAKER AND LINE SWITCH.

110KV ANTHIYUR SS PROGRAMMED TO AVAIL TOTAL SHUT DOWN ON 26.08.17.HENCE NO SS WILL BE AFFECTED.

Sub to Anthiyur 110KV SS availing total shutdown.

ANTHIYUR 230 KV

AUTO TRANSFORMER-I WITH ITS HV,LV BREAKERS AND ITS CT


DURING THE LC PERIOD AUTO TRANSFORMER-II ALONG WITH 230KV GOBI AND MTPS-I FEEDER WILL BE IN SERVICE.

Sub to Auto Tr. II load condition.

ECHUR 230 KV & GCC II/ Chennai

Monthly Maintenance work carried in all Cts and isolators in 230 KV Echur - Kalpakkam #. GCC works: Erection of 230kV DC line from Cuddalore to Veerapuram 230kV SS in between tower location No.170 & 171 of existing 230 kV Kalpakkam - Echur #

At the time of LC1.230 KV Echur -Kalpakkam # breaker will be HT, and Load transferred to other end SS supply , the supply is fed from 230 KV Arani SS, in case of over load to 230 KV Arani SS,(The 110 KV mazhaiyur # Load transferred to 230 KV Villupuram SS and 110 KV, Vandavasi SS Load transferred to 230 KV Acharapakkam SS). There is no interruption of supply to any of the Substation.


On 230/110 KV Auto-I, HV-I and LV-I breakers with CTs and LAS only.

During the LC period, Auto Transformer II will be in service and there will be no interruption in supply please.


110 KV KGTPS-KUMBAKONAM RADIAL FEEDER BREAKER WITH ENTIRE LINE

110 KV KGTPS - KUMBAKONAM RADIAL FEEDER ANNUAL RELAY TESTING WORKS BY AEE/P&C/THIRUVARUR.ROUTINE MAINTENANCE AND BREAKER TESTING WORKS BY AEE/EM/KGTPS AND AEE/MRT/KGTPS.

During the LC period, kumbakonam ss proposed to avail shutdown.Hence there is no interruption of supply to any ss. All other feeders will be in tied conditions.

KADAPPERI 230 KV

110KV MEPZ SS and 110KV Puthuthangal SS loads fed from 110KV Kadapperi -Oragadam feeder

KADAPPERI 230 KVKODAIYAR PH2

GRT Annual relay testing, Monthly Maintenance of breaker & CT

SUB TO WIND GEN LOAD CONDITION.

GRT Annual Relay Test and Maintenance work

Sub to Periakodiveri110 TSD and subject to # kept radial from Moyar end

110KV Ponnapuram # II Breaker, CTs, ,Isolators and Line side Isolator


Subject to wind generation and load condition

KARAIKUDI 230 KV

On 1)110KV KKDI Link # Bkr & Ct's. 2)110KV KKDI Link # Entire.

1)For Monthly Mtc Work.2)Tree Cutting work.

SANKANERI 230 KV

110KV Sankaneri-Melakallur feeder Breaker CTS&Lineswitches. .

During the LC Period 110KV Melakallur Supply Radialy upto 110KV VadakkanKulamSS. Hence no SS will be affaected.

EACHANGADU 230 KV

110 KV VIRUTHACHALAM FEEDER & Pennadam Feeder BREAKER,CT's one by one

While availing Shutdown in Vridhachalam # Supply to M/S SASL CO- GENARATION WILL BE Fed BY CLOSING THE BUSCOUPLER SWITCH NO 44 AT 110 KV PENNADAM SS AND THERE WILL BE NO INTERRUPTION TO EHT CONSUMER. Vridhachalam 110KV SS is aiso avialing shutdown on the same day.after normalizing the above shutdown 110 KV Pennadam feeder shut down will be availed and pennadam 110 KV SS is also avail shut down on the above day.


EACHANGADU 230 KV

50 MVA ,Auto Transformer II &HV II, LV II Breaker,CT's & their related Equipments

For Monthly maintenance works & Annual Relay test by GRT/VPM.

During the above work, Eachangadu 230 KV SS loads will be fed from the other Auto Transformer -I. 110 KV Pennadam SS & Vridhachalam SS is also avail total shut down hence the Loads will be with in one transformer capacity.


GENERATING STATIONS

THARAMANI 230 KVSRPUDUR 230 KV

110 KV SRP-KDR II # section between TKY to KDR including MTM,MCI,NDKV and KZI spur line

During the LC period the 110 KV SRP-KDR II # radial from SRP upto TKY (excl).110/11 KV Marthandam, Kuzhithurai,Munchirai and Nadaikavu SS will avail total shut down to be approved by SE/O/TIN and SE/KKEDC/Ngl. Parasalai SS will avail Back feeding from KSEB. Necessary concurrence may be obtained from SRLDC/ Bangaluru. Hence no SS will be affected.

SUB TO WIND GEN:APPD IN 133 OCC VIDE ITEM NO.143

PASUMALAI 230 KV

110 KV Pasumalai - Kinnimangalam # - I BKR & CT,LI only.

SUB TO LOAD CONDITION AND LOADING OF FEEDER 2

230 KV Arasur Feeder breaker, CTs and line switch with entire line

For monthly maintyenance and for GRT Relay testing work

1.230 KV MTPS II,230 KV Arasur and 230 KV Pallakapalauyam feeders are in service,it may cater the load2.Other end may also avail LC




110 KV Anuppankulam-T.kallupatti feeder sec b/w erichanatham and T.Kallaupatti

SUB TO TRANSFER OF T KALUPATTI SS TO 110 ANPKM-PSQ#

UDAYATHUR 230 KV

230KV UDAYATHOOR-ABISEKAPATTI FDR(PGCIL)BREKER, CT CVT &LINE SW

MONTHLY MAINTENANCE WORK & ANNUAL REAL TEST BY GRT

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO ENTIRE FEDER. OTHER END WILL BE INFORMED.

SEMBATTY 230 KV




110 KV Tiruvannamalai-Vinnavanur #, Breaker, CT's and Line Isolator

Monthly maintenance work and Annual relay testing work

During the period of L/C time,1. 110 KV Vinnavanur SS availing total S/D.2. 110 KV Bannari Sugars and 110 KV Chengam SS will be fed from 110 KV Singarapet Grid SS. Hence there is no interruption of supply please.


110 KV Tiruvannamalai Link #, Breaker, Ct's and Line Isolator.

During the period of L/C time, 110 KV Tiruvannamalai SS availing total S/D and there is no interruption of supply please.


110 KV Tiruvannamalai - Villupuram #, Breaker, CT's and Line Isolator

During the period of L/C time,1. 110 KV Mangalam SS availing total S/D,2. 110 KV Kilpennathur SS, 110 KV Rajanthangal SS, 110 KV Thandarai traction loads and 110 KV Vettavalam SS will be fed from 110 KV Villupuram Grid SS ( Radial up to 110 KV Kilpennathur SS) Hence there is no interruption of supply please.

SAMAYAPURAM 230 KV

100 MVA Auto Transformer-II, HV-II, LV-II, Breakers , CT's, and isolators

During the above Shutdown Period 100 MVA Auto Transformer I will be in service. No interruption to any other SS




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days



1347 Erode 59430 110 KV Monthly Maintenance Work Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1348 Erode 59442 230 KV Auto Transformer III HV ,LV Breaker,CT's and LAS Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved


1350 Madurai 59485 230 KV AUTO TR I HV I & LVI Bkr,CT&LAS Monthly Mtce work POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 14:00 1 Approved

1351 Madurai 59487 110 KV 110KV ALKL-PASUMALAI II # Bkr&CT Monthly Mtce work Feeder will be radial from other end..ThiruppalaiSS S/D POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 11:00 1 Approved


1353 Erode 59571 230 KV 230KV Myvadi- Pugalur # Breaker & CT line entire Both end LC applied Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 14:00 1 Approved

1354 Erode 59645 110 KV KUNDAH PH3 110 KV PH2 TO THUDIYALUR I For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Sat, 26/Aug/2017 7:00 Sat, 26/Aug/2017 17:00 1 Approved

1355 Chennai 59653 110 KV For monthly maintenance works Spic Pharma - Under D.C. from 21.11.2011 Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1356 Erode 59664 110 KV 110KV Malco Feeder I Monthly maintenance work During the LC period 110KV Malco II & III feeders will be in service. Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1357 Chennai 59701 110 KV 110 KV Neyveli TS I â€“ Devaikurichi Feeder â€“ II Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved


1359 Chennai 59730 110 KV 110KVVillupuram – Acharapakkam # Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1360 Erode 59735 230 KV 230 KV Arasur-Gobi Feeder Breaker and CTs. For monthly maintenance works. Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 16:00 1 Approved

1361 Erode 59791 230 KV For Monthly maintenance work Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1362 Erode 59792 230 KV 230 TBC/BC BREAKER Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 14:00 1 Approved



1365 Chennai 59822 230 KV 230/110 KV 100 MVA Auto Tr.No.II For General maintenance work. Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1366 Madurai 59860 110 KV 110KV R.S.Madai SS will avail total shut down. POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC



1369 Madurai 59879 230 KV 110KV KNMLM – PASUMALAI I # Entire POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1370 Chennai 59927 230 KV 230/110 KV, 100 MVA Auto Tr.II Monthly Mtce Work Auto Tr I & III will be in service Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1371 Chennai 59967 110 KV 110 KV Anaicut â€“ V.Patty feeder entire. For EHT Line Maintenance Works. Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1372 Chennai 59970 230 KV 230KV Thiruvalam â€“ Mosur feeder entire. For EHT Line maintenance work. Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1373 Erode 59976 110 KV 110 KV Tirupattur # Breaker, CTs & line isolators Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 16:00 1 Approved SGC


1375 Chennai 59999 230 KV For Monthly Maintenance Works Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 15:00 1 Approved

230/110 KV Auto Transformer III,230KV Breaker, CTâ€™s,bus selection isolator,incoming & out going isolator. 230/110 KV Auto Transformer III 230KV Breaker, CTâ€™s & Line Isolators 230/110 KV Auto Transformer III 230KV Breaker, CTâ€™s & Line Isolators

Auto transformer I and II are in service. 110KV Sirungattur SS and 110 KV Mambakkam SS availing total shutdown (40 MW).Hence no interruption of supply.

110KV Arani â€“ Sirungattur #, 110KV Breaker, CTâ€™s & Line Isolator.

110KV Mambakkam SS and 110KV Sirungattur SS availing total shutdown.Hence no interruption of supply.

Udumalpet 110 KV

110 KV UDT –Gudimangalam – #r breaker, CT’s and line between UDT and Gudimangalam


Subject to # kept radial from Ponnapuram230

PALLADAM 230 KV

To carryout monthly mainteance work by AEE/M/Palladam

1)Other Three Auto transformers (I,II and IV) will be inservice2)If necessary 110 KV Mudalipalayam SS will be transferred to 230 KV Ingur SS3)No other ss will be affected

Subject to other Auto's load condition and transfer of Mudalipalayam110 to Ingur 230

KAVANOOR 230 KV

110 KV KAVANOOR-R.S.MADAI-VGTPS # SEC. BET. KAVANOOR AND R.S.MADAI

FEEDER TO BE KEPT RADIAL FROM VGTPSR.S.MADAI SS AVAILED T/S.


ALAGARKOIL 230 KV

AUTO TR II will be in service.Thiruppalai SS , VandiyurSS,Melur,Narasingampatty SS under S/D. If necessary 110kv Alkl-Sembatty 1 feeder tie will be kept opened at ALKL end.


ALAGARKOIL 230 KV


PUDUKOTTAI 230 KV

110 KV SIPCOT FEEDER BREAKER, CT AND 110 KV LINE PORTION BETWEEN 230 KV SS AND 110 KV SIPCOT SS IN 110 KV SIPCOT FEEDER

FOR MONTHLY MAINTENANCE WORK OF BREAKER, CT, ISOLATORS AND GRT TESTING WORKS

110 KV URBAN SS AVAILING TOTAL SHUT DOWN AND 110 KV SUPPLY FOR 110 KV SIPCOT SS, 110 KV PUDUKKOTTAI SS, 110 KV THIRUMAYAM SS AND 110 KV KONNAIYUR SS IN 110 KV SIPCOT FEEDER ARE TRANSFERRED TO KARAIKKUDY 230 KV SS. CONCURRANCE OBTAINED FROM EE/O/ KARAIKKUDY AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS.

SUB TO LOAD CONDITION AND KKDI AUTO LOADING

Udumalpet 400 KV

For Monthly Maintenance and PMI work by lines wing.

133rd OCC approval sl no.141. SRLDC may be addressed

Subject to Kundah generation and load condition

CUDDALORE 230 KV

110 KV Cuddalore - Spic Pharma # breaker, CT’s & Line side isolator.

METTUR AUTO 230 KV

# 2 and 3 will be in service

CUDDALORE 230 KV

At Loc 205 â€“ 205A & 218 â€“ 219 in Main lineAt Loc 17 & 18 Virdhachalam Spur LineAt Loc 9 & 10 Virdhchalam Railway Traction.

1)Section between TASL Co Gen and Neyveli TS-I.2)Vridhchalam Spur Line3) Vridhachalam Railway Traction SS.(TSD Of Vridhachalam and Pennadam)

VILLUPURAM 230 KV

Auto Transformer–II ,Northern Bus and 110 KV Villupuram - Thirukoilur # ( between Karanaiperichanur and Thirukoilur substations)

1.Auto Tfr –II Monthly maintenance work.2.To carry out Breaker and CT’s Monthly Maintenance Work and For replacement of weak insulators at location No. 2 off Karanaiperichanur LILO

1.Thirukoilur # H/T at 230 Kv Auto Ss. The feeder will be radial from other end. 2.Auto Tfr I will be in service.&1.) The 110 KV line between Karanaiperichanur and Thirukoilur will be kept off.2.) The feeder will be radial from Deviyakuruchi end up to Thirukoilur SS and radial from Villupuram up to Karanaiperichanur SS. 3.) 110 KV Thirukoilur and Kallakuruchi sub-stations availing total shutdown. No interruption of supply to any SS.

Villupuram 110 KV


1.110KV AB Switch at Tindivanam SS towards Villupuram 110KV SS side will be kept open.2.110KV Tindivanam SS will be availing total shut down.3. Hence no interruption of supply in any SS.

ARASUR 230 KV

During the L.C period, The remaining 5 Nos. 230 KV Feeders will be in service.L.C programmed at other end also.


KARUVALUR 230 KV

230/110 KV Autotransformer - II, HV, LV, Breaker, CTs and LAS only.

110kv Avinashi SS total shut down and 110kv KVLR- ASR II feeder kept radial from 230 ASR SS and 110 kv Earipalayam SS ,TCS EHT and 110kV Vanjipalyam will be radially fed thro 110kv ASR -KVLR feeder I from 230kv ASR SS

Subject to Avinashi 110 SS TSD and 110KV KVLR- ASR # I & II kept radial from ASR230

KARUVALUR 230 KV


all 230kv Feeders will be in 230kV BUS II and 230kV BUS I will be ideal

All loads in 230KV Bus I

KARUVALUR 230 KV

110KV Karuvalur- Arasur I feeder Breaker, CTs. and line isolator


110kv Avinashi SS total shut down and 110kv KVLR- ASR I feeder kept radial from 230kV ASR SS.

Subject to Avinashi 110 SS TSD and 110KV KVLR- ASR # I kept radial from ASR230

ANUPPANKULAM 230 KV

110 KV APKM - Thulukkapatti I feeder Br., CT and Line entire.

(a) For Monthly Maintenance Works (b) For replacement of flash over disc at Loc. No. 5,14 & 33 (c ) For Monthly Maintenance Works at Thulukkapatti SS.

During the LC period 110 KV Sattur SS will be availing total shut down. Hence No SS will be affected.


KORATTUR 230 KV

During the period of S/D, other 2 Nos. 100 MVA Auto transformers will be in service.

VALUTHUR 230 KV

110 KV VGTPS - RSmadai -Kavanur feeder section between VGTPS and R.S. Madai

For attending tower to tower Inspection and Tree cutting work

SUB TO TOTAL S/D OF RS MADAI

ALUNDUR 230 KV

Revised LC 230KV Alundur - Pudukkottai Feeder breaker, CT'S, CVT'S and Line Isolators.

a)Monthly preventive maintenance work. b)Premonsoon inspection and tree cutting work. c)Relay Testing Work.



KODIKURICHY 230 KV

110KV Tenkasi - Papanasam feeder breaker with CT and Line Isolators

(i)110kv Tenkasi SS, Kadayam, Shenkottai SS will be under monthly shudown (ii)110KV Keelapavoor wind farm SS will be fed from 110KVKayathar-Papanasam # (iii)Papanasam PH will be tied with 110 KV Kayathar - Papanasam # by closing of Bus Coupler switch at rastha SS



During the LC period there will be no supply in the entire feeder. EE/O/CKNI and EE/O/PSQ has also programmed on Line LC and Breaker.


S.P.KOIL 230 KVVINNAMANGALAM 230 KV

During the period of LCiii. 110 KV Anaicut â€“ V.Patty feeder line LC in between from 110 KV Anaicut SS and 110 KV V.Patty SS.iv. The 110KV Anaicut SS, 110KV V.Patty are availing Total Shutdown Hence there will be no interruption of supply please

THIRUVALAM 230 KV

During the period of LC i. 230KV Thiruvalam â€“ Mosur feeder Breakers both end will be in â€œ OFFâ€ condition at 230KV �Thiruvalam & 230KV Mosur SS. ii. All other 230 KV feeders 230KV Link I, Link II, Chittoor feeders are in service.Hence there will be no interruption of supply please.

SINGARAPET 230 KV


During the period of LC 1). 110KV Tirupattur # breaker will be in hand trip condition at Both ends.2). 110KV Tirupattur SS end Total shutdown programmed and3). 110KV Tirupattur Railway traction SS load will be fed to 230 KV SS Vinnamangalam through 110 KV Vinnamangalam â€“ Tirupattur #.hence no interruption of supply.

Sub to Thirupatthur110 availing TSD and feeding of Traction loads through 110KV Vinnamangalam - Thirupattur #

TRICHY 230 KV

110 KV Trichy Link I & II feeder breaker , CTs & Line Isolator and line entire one by one.


During the LC period a) Trichy 110 KV Grid SS availing total shut down for monthly maintenance works. b) 110 KV Iyyarmalai SS and 110 KV Pettavaithalai SS loads will be managed through 110KV Pugalur - Puliyur - Trichy feeder and M/s Welspun Solar power. c) All other 110 KV feeders will be in service. d) there will be no interruption of supply to any of the SS.


THIRUVALAM 230 KV

i)On 230KV Mosur feeder Breakers and its CTâ€™s and Line Isolators

During the period of LC i) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS Loads.ii) The 230KV Mosur feeders will be in â€˜OFFâ€™ Conditioniii) The 230KV Chittoor Interstate feeder, 230KV Link-II # , 230KV Link-I # and will be in service and cater the SS Loads. Hence there will be no interruption of supply please.



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1376 Madurai 58754 110 KV SERVALAR 110KV SER-PPM#1&2 POSSIBLE Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 15:00 1 Approved

1377 Erode 60063 230 KV 1,2 ) Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 15:00 1 Approved SGC

1378 Erode 60079 110 KV 110KVPonnapuram # Line Upto Patspin Monthly Maintenance Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1379 Erode 60085 110 KV 1. Monthly Maintenance works 1. Scheduled shutdown at 110/11KV Coimbatore SS 1,2 ) Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 16:00 1 Approved SGC

1380 Erode 60117 110 KV jumper tightness work Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1381 Erode 58809 110 KV 110KV Deviyakurichi -II feeder/CT,Breaker. Monthly maintenance Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1382 Erode 58813 400 KV Salem 400 KV 400 KV Tie Breaker I CTs, SWITCHES & JUMPERS monthly maintenance work Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1383 Erode 58819 110 KV Salem 400 KV monthly maintenance work Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1384 Madurai 58827 110 KV kamuthi 400 KV MONTHLY MAINTENANCE WORK POSSIBLE Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 14:00 1 Approved

1385 Madurai 58895 110 KV PAPANASAM 110KV Servalar - Papanasam feeder- II Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved

1386 Madurai 58584 110 KV PAPANASAM 110KV PPM- SVLR feeder -2 bteaker with CT. Sat, 26/Aug/2017 10:00 Sat, 26/Aug/2017 12:00 1 Approved

1387 Erode 400 KV 400KV Paalavadi-Thiruvalam - 1 Feeder Monthly Maintenance works by Maintenance wing Possible Sat, 26/Aug/2017 9:00 Sat, 26/Aug/2017 17:00 1 Approved SGC

1388 Chennai 59219 230 KV 50 MVA Power Transformer-I For Quarterly Maintenance work For Quarterly Maintenance work Sun, 27/Aug/2017 10:00 Sun, 27/Aug/2017 5:00 1 Approval by CBD

1389 Erode 58590 KUNDAH PH3 Unit I For monthly maintenance work. Unit under shutdown condition, SF6 breaker open condition Possible Sun, 27/Aug/2017 8:00 Sun, 27/Aug/2017 17:00 1 Approved

1390 Chennai 58608 110 KV 110KV SVC - SPDR Mosur-II feeder entire maintenance work Possible Sun, 27/Aug/2017 9:00 Sun, 27/Aug/2017 17:00 1 Approved

1391 Erode 58613 KUNDAH PH2 Possible Sun, 27/Aug/2017 9:00 Sun, 27/Aug/2017 17:00 1 Approved

1392 Chennai 58940 110 KV 110KV Sembium Feeder Half Yearly Maintenance Work Possible Sun, 27/Aug/2017 9:00 Sun, 27/Aug/2017 17:00 1 Approved

1393 Chennai 58709 110 KV 110KV SPR-MOSUR-II feeder lines lc and jumper tightness work Possible Sun, 27/Aug/2017 9:00 Sun, 27/Aug/2017 17:00 1 Approved

1394 Erode 59453 KUNDAH PH4 Unit 2 Monthly maintenance work Standby Possible Sun, 27/Aug/2017 8:00 Sun, 27/Aug/2017 17:00 1 Approved

1395 Chennai 59539 110 KV 110KV Western Bus Routine Maintenance work Possible Sun, 27/Aug/2017 9:00 Sun, 27/Aug/2017 17:00 1 Approved

1396 Chennai 59747 400 KV 230KV Thiruverkadu feeder Maintenance work 230KV Thiruverkadu feeder will not be in service Possible Sun, 27/Aug/2017 10:00 Sun, 27/Aug/2017 17:00 1 Approved


1398 Madurai 59250 110 KV 110 KV SRP-KKY # Br,CT & Line switch NOT POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

1399 Madurai 58882 110 KV 110KV Thiruvarur - T(K)GTPS Express feeder During the LC period no interruption of supply to any other SS. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved


1401 Erode 58920 110 KV 110 KV OKM-Negamam 2 Feeder (Breaker, CT's) For monthly maintenance works. Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 Approved

1402 Madurai 58972 230 KV On 230KV TTPS-Koodankulam feeder entire For Tower to Tower Inspection work. No ss will be affected. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1403 Erode 59000 110 KV For monthly maintenance work Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved SGC

1404 Erode 59103 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1405 Madurai 59137 110 KV 110 KV TNPL feeder breaker, CT & Line switch only Monthly Maintenance work. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved SGC

1406 Madurai 59151 230 KV On 230KV PGCIL-PDKT # Entire. For Tree Cutting and Inspection work. During the L.C Period the the all other 230Kv Feeders tied with Grid. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1407 Madurai 59173 230 KV For monthly maintenance purpose. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 Approved

1408 Madurai 59184 230 KV 230kv Transfer bus coupler (TBC) breaker monthly maintenance DUring LC Period the TBC Breaker is in standby condition. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 Approved

1409 Erode 59205 PYKARA UNIT 7 For monthly maintenance work NIL Possible Mon, 28/Aug/2017 8:00 Mon, 28/Aug/2017 17:00 1 Standby unit Approved

1410 Madurai 59265 110 KV Maintenance Works of BKR & CT,LI EE / O / Kinnimangalam has also programmed POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 Approved SGC

110KV YARD MONTHLY MAINTENANCE WORK

Present pwd demand is 250cs. servalar dam level is 232.22mt. The machine is under jack condition.there will be no loss of generation.During the LC period the # will be radial from the other end.


Auto Transformers No. I & 110 KV Ambur # breaker & its CTs

For replacing the defective surge monitors in 230 /110 KV LAS and for carrying out routine monthly maintenance works

1,Total shutdown has been approved by CE/D/Vellore vide Memo. No.:CE/D/VLR/EE/AEE/Gl/ F. Shut down/ D. 337 /2017, Dt:22 .07.2017 2,SE/D/Tirupatture vide Memo.No:SE/TEDC/TPR/ Gen/ AE / F.Shutdown/D.717/17, dt:24.07.2017 3,During the total shutdown period,there will be interruption of supply to the following sub stations 1) Anaicut SS,2) Ambur SS, 3) Somalapuram SS , 4) Vadakathipatty SS.

Sub to Anaicut SS, Ambur SS, Somalapuram SS ,Vadakathipatty SS availing TSD. and Traction concurrence

UDUMALPET 230 KV

DURING LC PERIOD SEC BETWEEN PATSPIN EHT SERVICE AND PONNAPURAM SUPPLY WILL BE FED FROM 230 KV PONNAPURAM SS

Sub to # kept radial from Ponnapuram 230

COIMBATORE 230 KV

1. 110KV Coimbatore feeder Breaker and CTs 2. Auto transformer - I , 3. HV -I Breaker & CTs 4. LV- I Breaker & CTs and LAS

Subject to CBE110 TSD and Auto Tr 2 load condition

DEVIAKURICHI 230 KV

110 KV Singapuram-Deviakurichi 11 Feeder (Section between P.G.Palayam ss -Singapuram ss)

1) Singapuram 230KV SS Deviakurichi II feeder monthely maintenances work Breaker,CT ‘s2)Deviakurichi 230KV SS radial fed from upto P.G.Palayam 110KV SS End3)There will be no interruption of supply any other SS.

Sub to Attur110 availing TSD and sub . to # kept radial from Deviakurichi end

SINGAPURAM 230 KV

1.Monthly maintenance 110KV Deviyakurichi -II feeder will be fed radially from Deviyakurichi end 2.110 22KV ATTUR SS is availing TSD on 26.08.2017

Sub to Attur110 availing TSD and sub . to # kept radial from Deviakurichi end

HV Breaker I & II will be in service condition, Hence there will be no interruption of supply to 400 / 230 KV Auto transformers I & II.

133rd OCC approval sl no.170. SRLDC may be addressed. 400 / 230KV Auto I & II will be service through through main breakers

110 KV THUMBIPADY # CT, BREAKER, BUS & LINE SWITCHES

During LC Period, 110 KV Thumbipady SS will be avail total shut down on 26.08.2017

Sub to Thumbipadi 110 SS availing total shutdown.

110KV UTHUMALAI FEEDER BREAKER AND CT

110KV UTHUMALAI SS IS AVAILING MONTHLY MAINTENANCE ON THE SAME DATE SO NO SS AFFECTED


Tree clearance work at various location in feeder II .

1.110 KV Papanasam â€“ Servalar â€“I Feeder will be in service2. 110 KV isolator towards Papanasam will be kept opened in Servalar and 110 KV isolator towards Servalar will be kept opened in Papanasam. Hence no SS will be affected

110KV PPM- SVLR feeder -2 breaker with CT maintenance work.

Present PWD demand is 250 CUSECS. During the LC period the feeder will be radial from other end.

PALAVADI 400 KV


No interruption of supply, Load fed through 400KV Thiruvalam - 2 Feeder

KOYAMBEDU 230 KV

Approval by CBD

GENERATING STATIONS



During the above shutdown period the 110KV SVC - SPDR Mosur-II feeder will be out of service

GENERATING STATIONS






1. 110KV Sembium Feede only will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto-I,II & III will be in service.


During the period of shutdown concerance of EHT service has been obtained

GENERATING STATIONS


KILPAUK 230 KV

During the period of shutdown 1) 110KV KWW I # load may be transferred to KWW II # 2) 110KV AnnaNagar load may be transferred to 230KV Korattur SS feeding.3)100MVA Auto Transformer I will not be inservice.

Alamathy 400 KV

Subject to Grid Condition

KAYATHAR 230 KV

110 KV Kayathar - periyar feeder, breaker with CT and GRT testing works

a) For monthly maintenance workb) For annual relay and breaker testing

During the LC period. the feeder will be radial from other end. Hence no ss affected.

SRPUDUR 230 KV

Monthly Mainteanace work,Tree clearance work

During the LC period 110/11 KV Karungulam SS will avail back feeding supply from 110 KV Palavoor # and Kannanallur SS will avail back feeding supply from 110 KV Muppandal #. Hence no SS will be affected.

THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CTs and Line side isolator maintenance work and Annual Relay Testing work by GRT wing.


ACHRAPAKKAM 230 KV

110KV Kannarpatty - Uthumalai feederSection between (Uthumalai-Veerasigamani)

Defective jumper replacement work at location No.16 &23 and replacement of disc at location No.3,14,24 .

1. 110 KV Uthumalai SS will be fed from 400 KV Kanarpatty SS and 110 KV Veerasigamani SS will be fed from Kodikuruchi-Veerasigamani feeder-2 by closing Bus coupler switch at veerasigamani SS end ,2.110 KV isolator towards Uthumalai will be kept opened in Veerasigamani and 110 KV isolator towards Veerasigamani will be kept opened in Uthumalai. Hence no SS will be affected


During the LC period, 110 KV OKM-Negamam II feeder loads will be kept radial from 110 KV Negamam SS.Hence no ss will be affected.

Sub to wind Generation and other #s load condition



UNJANAI 230 KV

Unjanai- Paruthipally 110KV feeder, Breaker,CTs and Line side Isolator only

During the LC period other end also programmed to avail the LC on that day

Sub to Paruthipaaly110 availing TSD

230 KV Bus Coupler Breaker, CT’s,Isolator and main bus

Sub to transfer of all loads to 230KV Auxillary bus

PUGALUR 230 KV

During the LC period, there will be no supply on the above feeder. Concurrence obtained from EHT consumer M/s TNPL Ltd.

SUB TO CONCURRENCE FROM TNPL

KARAIKUDI 230 KV

SUB TO LOAD CONDITION:APPD IN 133 OCC VIDE ITEM NO.147

SANKANERI 230 KV

230KV Sankaneri-Udayathoor feeder Breaker,CTs&Lineswitches.

During the LC Period There willbe no supply inthe Entire feeder, Other end also LC applied.



GENERATING STATIONS

PASUMALAI 230 KV

110 KV Pasumalai - Kinnimangalam - 2 # BKR & CT,LI only.

SUB TO LOAD CONDITION AND FEEDER 1 LOAD CONDITION



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1411 Erode 59270 230 KV GOBI 230 KV 230 KV BUS COUPLER Breaker with CTs and Bus II Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1412 Madurai 59330 110 KV 110KV SBT- Udumalpet # S.V.Patti and Pappampatti Tree cutting work POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1413 Chennai 59346 230 KV 230 KV Bus Coupler and Transfer Bus CVT Monthly maintenance work Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 Approved

1414 Madurai 59352 110 KV PERIYAR For Monthly maintenance work. POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 13:00 1 Approved

1415 Madurai 59370 110 KV POSSIBLE Mon, 28/Aug/2017 10:00 Mon, 28/Aug/2017 17:00 1 SUB TO SOLAR GEN Approved

1416 Madurai 59806 230 KV Mon, 28/Aug/2017 9:00 Thu, 07/Sep/2017 12:00 11

1417 Madurai 59807 230 KV Mon, 28/Aug/2017 12:00 Mon, 28/Aug/2017 9:00 1 Postponed


1419 Madurai 59433 110 KV 110 KV Thiruvarur Express feeder During the LC period there will be no interruption to any SS. POSSIBLE Mon, 28/Aug/2017 10:00 Mon, 28/Aug/2017 17:00 1 Approved

1420 Erode 59452 230 KV Auto Transformer IV HV ,LV Breaker CT's and LAS Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1421 Madurai 59470 230 KV 230 KV KAVANOOR-VALUTHUR # LINE MAINTENANCE WORKS NO SUPPLY IN THE FEEDER POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1422 Madurai 59515 230 KV MONTHLY MAINTENANCE WORK POSSIBLE Mon, 28/Aug/2017 10:00 Mon, 28/Aug/2017 15:00 1 Approved

1423 Erode 59517 110 KV Monthly Maintenance work Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved SGC



1426 Erode 59637 110 KV 110KV Singarapet feeder I Monthly maintenance work Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1427 Madurai 58829 110 KV MONTHLY MAINTENANCE WORK NOT POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

1428 Madurai 58836 110 KV MONTHLY MAINTENANCE WORK NOT POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 14:00 1 DUE TO WIND GEN Not Approved

1429 Erode 59648 110 KV KUNDAH PH3 110 KV PH2 TO THUDIYALUR II FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Mon, 28/Aug/2017 8:00 Mon, 28/Aug/2017 17:00 1 Approved

1430 Chennai 59656 110 KV For monthly maintenance works J.K. Pharma - Under D.C. from 25.06.2004 Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved


1432 Erode 59830 230 KV PUSHEP 230 KV PUSHEPH - ARASUR feeder Monthly maintenence works Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1433 Madurai 59861 230 KV 230KV Valuthur - Kavanoor feeder entire POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1434 Madurai 59881 110 KV 110KV KNMLM – PASUMALAI II # Entire POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1435 Chennai 59900 110 KV 110KV Bus coupler feeder breaker & CTs for monthly maintenance work. Hence there will be no interruption of supply please. Possible Mon, 28/Aug/2017 0:00 Mon, 28/Aug/2017 0:00 1 Approved

1436 Madurai 58748 230 KV TTPS POSSIBLE Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved



1439 Erode 60080 110 KV Monthly Maintenance Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved SGC

1440 Erode 58821 400 KV Salem 400 KV monthly maintenance work Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1441 Erode 58853 110 KV For Monthly Maintenance work Possible Mon, 28/Aug/2017 9:00 Mon, 28/Aug/2017 17:00 1 Approved

1442 Erode 58617 230 KV KUNDAH PH2 Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved


All 230 KV Feeders and Auto Transformer I,II and III are connected in Bus i,Bus II idly charged through Bus coupler Breaker

All loads fed through 230KV Bus I

SEMBATTY 230 KV

During the LC period the feeder will be radial from SBT upto S.V.Patti and radial from other end upto Pappamapatti. Palani SS will be transferred to RNPM - Udumalpet #. hence no interruption to any SS.



During the period of L/C time, 230 KV Transfer Bus will be OFF condition. There is no interruption of supply please.

110 KV Periyar - K.G. Patti feeder Breaker with CTs only.

During the LC period the feeder will be radial from K.G.Patti up to Periyar. No SS will be affected.

SUB TO WIN GEN AND LOAD CONDITION

SAMAYAPURAM 230 KV

110 KV MUSIRI # Breaker & CTs and line portion between 230kV Samayapuram SS and 110KV Vengaimandalam SS.

Monthly Maintenance Work and Premansoon line patrol work.

During the above Shutdown Period, 1) 110 KV Musiri # will be fed thro'110 KV perambalur 2 # at 110KV KKDY SS by closing ABS.2 &3 at 110 KV Thathaingarpet SS and by closing Musiri Breaker at 110 KV T.Pet SS. (Note: already in 110 KV Thuraiyur SS ABS 1&6 are in closed condition) 2) 110 KV Musiri # Breaker at 230 KV SMPM SS will be in H/T condition and line isolator towards 110KV Vengaimandalam SS is Kept opened and earth switch closed . 3) At 110KV vengaimandalam SS towards 230KV Samayapuram SS Isolator is kept in open condition and Earth switch closed condition. 4) 110KV Vengaimandalam SS is also availing total shutdown on that same day. 5)Informed & necessary concurence obtained from Welpsun Solar Plant & EHT consumer (Arise) 6)There is no interruption to any other 110 KV SS

ANUPPANKULAM 230 KV


For removal of overhang loop jumper of 2-89 B buscoupler switch for replacement of 2Nos isolator switch2-89B&7-89,southern side strung bus,bus bar.

During the LC period Auto II & III, HV II & III, LV II & III under hand tripped condition. 230 KV APKM - Sterlite feeder under hand tripped condition. Auto Transformer-I will be fed from 230KV Anuppankulam- Madurai and 230KV Anuppankulam - Kayathar feeder sources . 110 KV Aruppukottai SS load will be tramsferred to 110 KV Kavanoor - Kamuthi feeder. 110 KV Anuppankulam - PSQ will be radially fed from PSQ end.

LONG LC NOT TO BE PUTUP

Awaiting Note approval

ANUPPANKULAM 230 KV

Auto Tr- III, HV III, LV III Br. And Strung bus from 2-89B isolator switch to southern side end

Replacement of southern side strung bus, bus bar and 2 Nos. isolators. (Bus coupler 2 - 89 B & 7 - 89) Note: From 12 hrs on 28.8.17 to 9 hrs. on 31.8.17

During the LC Period the Auto Tr. III, HV III & LV III in handtripped condition. Auto TR. I & II will cater the loads of Auto Tr. III. 110 KV Aruppukottai SS load will be transfer to 110 KV Kavanoor - Kamuthi feeder.

LC POSTPONED TO NEXT MONTH

KAYATHAR 230 KV

230KV TTPS-KOODANKULAM FEEDER ENTIRE LINE

LINE INSPECTION WORK & RECTIFICATION WORK



KOVILKALAPAL

(1)Breaker, CTs, Isolators and CVT Maintenance works. (2) Breaker testing works by MRT and (3)Relay testing works by GRT


PALLADAM 230 KV

To carryout monthly maintenanc work by AEE/M/Palladam

1)Other Three Auto Transformers (I,II and III) will be in service2) If necessary 110 KV Mudalipalayam SS will be transferred to 230 KV Ingur SS3)No other SS will be affected

Subject to other Auto's load condition and transfer of Mudalipalayam110 to Ingur 230

KAVANOOR 230 KV


UDAYATHUR 230 KV

230KV UDAYATHOOR-SANKANERI FDR,BR., CT., CVT., L.SW

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO ENTIRE FEEDER. OTHER END ALSO LC APPLIED


SALEM AUTO 230 KV

110 KV K.R.Thoppur Feeder -II Breaker CT's and line Isolators.

1. 110 KV K.R.Thoppur feeder - II will be radially fed from other end. 2. Kandampatty 110KV SS will be availing total shutdown. 3. There will be no interruption to any SS or feeder.

Subject to Kandampatty110 availing TSD and # kept radial from SLM230

PUDUKOTTAI 230 KV

230 KV PUDUKKOTTAI-KARAIKKUDY PG FEEDER BREAKER, CT, CVT, ISOLATORS AND 230 KV EHT LINE.

FOR MONTHLY MAINTENANCE WORK OF BREAKER, CT, CVT, ISOLATORS 230 KV EHT LINE AND GRT TESTING WORKS

PUDUKKOTTAI 230 KV SS LOADS WILL BE MAINTAINED FROM 230 KV ALUNDHUR FEEDER AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS.

SUB TO LOAD CONDITION:APPD IN 133 OCC VIDE ITEM NO.147

ALUNDUR 230 KV

100 MVA Auto Transformer - II ,HV-II,LV-II Breaker's, CT's and Isolators.

a)Monthly maintenance work. b)Relay Testing work.

During the LC period, a)An Other 100 MVA Auto Transformer -I will be in service. b) All 110 KV feeders will be in service. c) There will be no interruption of supply to any other feeders.


METTUR AUTO 230 KV

During the LC period radially fed from 110KV Singarapet SS Up-to 110KV Thoppur SS

Subject to # kept radial from other end

kanarpatty 400 KV

110KV KEELAVEERANAM FEEDER BREAKER WITH CT BAY NO 105

110KV SURANDAI SS IS AVAILING MONTHLY MAINTENANCE ON THE SAME DAY, 110KV KEELAVEERANAM SS WILL BE FEED THROUGH 110KV UTHUMALI FEEDER VIA SURANDAI FEEDER AT UTHUMALI SS. NO SS AFFECTED.

kanarpatty 400 KV

110KV KEELAVEERANAM FEEDER BREAKER WITH CT BAY NO 105

110KV SURANDAI SS IS AVAILING MONTHLY MAINTENANCE ON THE SAME DAY, 110KV KEELAVEERANAM SS WILL BE FEED THROUGH 110KV UTHUMALI FEEDER VIA SURANDAI FEEDER AT UTHUMALI SS. NO SS AFFECTED.

Sub to grid condition and Kundah generation

CUDDALORE 230 KV

110 KV Cuddalore - J.K. Pharma # breaker, CT’s., Line side isolator.

ARASUR 230 KV

230 KV Arasur-PUSHEP Feeder Breaker and CTs and line entire.

For monthly maintenance works and PMI works.


Sub to Pushep Gen. Other #s will cater the load.

230 KV Pusheph - Arasur feeder in tripped condition,230 KV Bus and Line switches in open condition


VALUTHUR 230 KV

During the LC period 230KV Valuthur - Karaikudi and Alagarkovil feeders will be in service. Hence, there is




During the LC period there will be no supply in the entire feeder. EE/O/CKNI and EE/O/PSQ has also programmed on Line LC and Breaker.

SUB TO LOAD CONDITION AND FEEDER 1 LOAD CONDITION

MOSUR 230 KV

230KV TTPS - KOODANKULAM FEEDER ENTIRE

ANNUAL MAINTENANCE OF UNDER HUNG BUS AND QUARTERLY MAINTENANCE WORK.

1. 230KV TTPS - KOODANKULAM FEEDER BREAKER TRIPPED CONDITION AT BOTH ENDS2. 29A & 29B ISULATORS KEPT OPEN CONDITION3. EARTH SWITCH SHOULD BE CLOSED CONDITION AT BOTH ENDS


Singarapet 110 KV

110KV SAMALPATTI RAILWAY # I SF6 BREAKER, CT'S AND LINE SIDE ISOLATORS


DURING THE LC PERIOD,1) SAMALPATTI RAILWAY # I HAND TRIP CONDITION AT SINGARAPET SS END2) THE SAMALPATTI RAILWAY TRACTION LOAD FED FROM 110 KV SAMALPATTI RAILWAY # II3) HENCE, THERE IS NO INTERRUPTION OF SUPPLY.

#2 will cater the Traction load

ARASUR 230 KV

230 KV Arasur-PUSHEP # breaker,CT'S ,Control and relay panels

For enabling of Auto re closure by P & C wing/Thudialur.



UDUMALPET 230 KV

110KVPoolavady #Breaker and Lines bet Udumalpet&Thungavi .

1)POOLAVADY SS WILL BE ON TOTAL SHUTDOWN 2)THUNGAVI SS LOADS WILL BE FED FROM PONNAPURAM 230KV SS ** THUNGAVI SS FED FROM PONNAPURAM SS DURING THE LC PERIOD.

Sub to Poolavadi110 TSD and Thungavi 110 fed from Ponnapuram 230

400 KV Tie Breaker II,CTs, BREAKER, SWITCHES & JUMPERS

HV Breaker III & IV will be in service condition, Hence there will be no interruption of supply to 400 / 110 KV Auto transformers III & IV.

133rd OCC approval sl no.172. SRLDC / BLR may be addressed. 400 / 110KV Auto III will be service through through main breaker

DEVIAKURICHI 230 KV

110 KV Deviakurichy-Singapuram feeder- I Breaker, CTs

110KV Deviakurichy - Singipuram feeder- I will be kept radial from Singipuram 230KV SS end.

Sub to # kept radial from Deviakurichi230

230KV ARASUR FEEDER NO 1 SF6 BREAKER AND ITS ACCESSIORIES





NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days


1444 Madurai 58563 110 KV For monthly maintenance Work NOT POSSIBLE Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 12:00 1 DUE TO WIND GEN Not Approved



1447 Erode 58549 230 KV 230 KV Coimbatore feeder Br & CT & Entire line Other 230 KV feeder share the loads Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 16:00 1 Approved

1448 Madurai 58635 230 KV For Monthly Maintenance Work. POSSIBLE Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1449 Erode 58576 110 KV METTUR DPH 110 KV METTUR TOWN SS FEEDER Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 15:00 1 Approved SGC



1452 Madurai 58957 230 KV 230KV Bus coupler Breaker only For monthly maintenance work Idle Breaker.There will be no interruption to the Consumer POSSIBLE Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 12:00 1 Approved

1453 Madurai 58973 110 KV On 110KV TTN-Sipcot-II feeder entire For Tower to Tower Inspection work. No ss will be affected. POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved


1455 Madurai 59091 230 KV For monthly maintenance work POSSIBLE Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 16:00 1 Approved

1456 Erode 59105 230 KV INGUR 230 KV OTHER END ALSO AVAIL LC ON THAT DAY Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1457 Madurai 59138 230 KV Monthly Maintenance work POSSIBLE Tue, 29/Aug/2017 8:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1458 Madurai 59153 230 KV On 230KV G.C Bkr & Ct's. For Monthly Mtc work. POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1459 Madurai 59172 110 KV On 110KV KKDI-A.Koil # S/B A.Thekkur-S.Punari. Tree cutting work. POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1460 Erode 58675 110 KV 110KV THALAVAIPETTAI ENTIRE FEEDER Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1461 Erode 58676 230 KV Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1462 Chennai 58677 110 KV 110 KV Echur - Kaliyampoondi # Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Approved

1463 Madurai 59218 230 KV EE / O / Alagarkoil has also programmed. POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Approved

1464 Erode 59275 110 KV GOBI 230 KV For monthly maintenance work 110 KV Gobi SS may avail Total shutdown, No other SS will affected Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1465 Chennai 59660 110 KV 110 KV Capacitor Bank II with Breaker & CT’s For monthly maintenance works 110 KV Capacitor Bank I will be in service Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1466 Madurai 59329 230 KV For MMW,LMW &P&C Work During LC Period there will be no supply in the entire feeder POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1467 Madurai 59355 110 KV KUTTALAM POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved


1469 Madurai 59379 230 KV Monthly Maintenance Work POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1470 Chennai 59398 230 KV ARNI 230 KV 230 KV Tie Breaker & Isolator. For Monthly Maintenance work 230KV Tie Breaker is in OFF condition.Hence no interruption of supply Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Approved

1471 Erode 59462 110 KV Tension point jumpers checking work Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1472 Madurai 59489 230 KV 230 KV ALKL-Pasumalai # Bkr,CT,&Line entire Monthly Mtce work & line patrol work Other end is also availing L.C. POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 16:00 1 Approved

1473 Erode 59513 230 KV LC programmed at other end also. Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Approved

1474 Erode 59518 110 KV 110KV Sankari feeder Breaker, CT’s & Line Isolator Monthly maintenance work. Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1475 Chennai 59980 230 KV 230 KV Thiruverkadu-CMRL feeder Jumper tightness at various location All other feeder will be in services To be discuss Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

KAYATHAR 230 KV

110 KV KYTHR-O.T.PATTI FEEDER SEC B/W SEETHEPARPANALLUR&KYTHR


DURING THE LC PERIOD,1.SEETHEPARPANALLUR SS WILL BE RADIALLY FED FROM O.T.PATTI HENCE NO SS AFFECTED

Uthumalai 110 KV

110 KV Uthumalai - Vannikonannthal feeder breaker with ct

110Kv Kannarpatti - Keela Veeranam feeder supply is to be extrndrd upto this SS end by clossing 110 KV lineswitch towards Uthumalai SS at 110 KV Surrandai SSNo SS affected . (110 KV Kannarpatti - Keela veeranam feeder supply is not to be entered up to 110 KV Veerasigamani SS as this Veerasigamani breaker under idle condition at thisUthumalai section end now.Thje LC Wotk is to be carried out by thr AEE/Mtce/110-33-11 KV Grid SS.

ACHRAPAKKAM 230 KV

110 KV Villupuram Feeder-I Breaker and CTâ€™s With line isolator

1)110KV ACK â€“ Villupuram # I radial charged from other end.2)110KV ACKâ€“ Villupuram # I line side isolator switch opened at 110KV Tindivanam SS towards Achrapakkam SS side 3)Hence no interruption of power supply.

SANKANERI 230 KV

230KV Sankaneri-SRputhoor feeder Breaker,CTs&Lineswitches.


During the LC Period There willbe no supply inthe Entire feeder, Other end also LC applied.

THUDIALUR 230 KV

For Monthly maintenance works & Polluted disc replacement work by AE/Line /CBE


VEERANAM 230 KV

Power Transformer-IV.HV-IV,LV-IV and 33Kv feeders Micon-7,Vestas-1&2.

During the LC period there will be no supply in Power Transformer-IV.HV-IV,LV-IV and 33Kv feeders Micon-7,Vestas-1&2. Concurrence Obtained from SE/NCES/TIRUNELVELI.



110 KV METTUR TOWNS SS WILL ALSO PROPOSE TO AVAIL LC ON THE SAME DAY

Sub to MTR Town ss availing TSD.

THIRUVARUR 230 KV

110KV Thiruvarur - Mayiladuthurai feeder (Line portion between 110KV Neelagudy SS to 110KV SS Peralam)


During the LC period 110KV Neelagudy SS supply will be fed from 230KV SS Thiruvarur and 110KV Peralam SS & 110KV Perambur SS supply will be fed from 110Kv Grid SS Mayiladuthurai. Hence there will be no interruption of supply to any other SS.


SRPUDUR 230 KV

230 KV SRP-SNRI # Br ,CT & Line switch and Line entire

Monthly Mainteanace work,Tree clearance work,Annual Relay testing work

During the LC period 230 KV SR Puthur - Koodankulam feeder will be in service.Other end will also apply shut down.Hence No SS will be affected.

PERAMBALUR 230 KVTUTICORIN -AUTO 230 KV



i) On 230 /110 KV Auto-II, HV-II and LV-II breakers with CTs and LAS only.ii) On 110KV Sipcot-TTN-II feeder breaker with CTs and line isolators only.

i.a) For monthly maintenance work.i.b) Annual relay testii) For monthly maintenance work.

During the L.C period, i) Auto Transformer I will be in service and no SS will be affected please.ii) the 110KV Sipcot -TTN#-II will be in `off ` condition at both ends and the other end has also proposed LC on the same date. Since there is no intermediate SS, no other SS will be affected please.



230 KV NNPT - CHEKKANURANI feeder Breaker with CT&Line isolator

During the LC Period there will be no supply in the entire feeder and other end also will be applying LC on the same day.No SS affected during the L.C period.


230KV Karamadai # Breaker, CT’s,Isolators and Line side Isolator and 230 KV main Bus switch

MONTHLY MAINTEANCE WORKS AND GRT WING ANNUAL RELAY TESTING WORK

Other #s will cater the load . All loads in 230KV Auxillary bus

PUGALUR 230 KV

230 KV Paruthiyur feeder breaker, CT & Line switch only

During the LC period, there will be no supply on the above feeder. Concurrence obtained from M/s Regen power Tech.Paruthiyur.

SUB TO WIND GEN,GRID CONDITION AND CONCURRENCE FROM WIND GENERATORS

KARAIKUDI 230 KV

During the L.c period the 230KV B.C in place of 230KV G.C. hence there will be No interruption of Supply.

KARAIKUDI 230 KV

During the L.C Period the 110KV S.Punari SS Loads will be Transferred to 110KV Kottampatty #.(tied from 230KV A.Koil SS).Remarks:ID.No:- 59156,Date of L.C wrongly entered as 30.08.17. Hence, revised L.C applied for 29.08.17.

ANTHIYUR 230 KV

FOR MONTHLY MAINTENANCE OF CT BREAKER AND LINE SWITCH AND ANNUAL RELAY TESTING WORK BY P&C WING

110KV TAHLAVAIPETTAI SS PROGRAMMED TO AVAIL TOTAL SHUT DOWN ON 29.08.17.HENCE NO SS WILL BE AFFECTED.

Sub to Thalavaipettai SS avialing TSD

ANTHIYUR 230 KV

AUTO TRANSFORMER-II AND WITH ITS HV&LV BREAKERS AND ITS CTs


DURING THE LC PERIOD AUTO TRANSFORMER-I WILL BE IN SERVICE WITH 230KV FEEDERS GOBI AND MTPS-I

Thalavaipettai SS TSD and sub to Auto Tr I load condition

ECHUR 230 KV

Monthly Masintenance work in all CTs and Isolators in 110 KV Echur - Kaliyampoondi #

At the Time of LC1. The 110 KV Echur - Kaliyampoondi # Bkr will be H/T Condition. After completion of work 110 KV Echur - Kaliyampoondi # Bkr will be charge (Hence it is ideally charged) No interruption of supply.

PASUMALAI 230 KV

1) 230 KV Pasumalai - Alagarkoil # BKR & CT,LI only. 2)Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree Cutting and T-T inspection works


110 KV GOBI Feeder breaker, CTs and line switch with entire line

Sub to Gobi110 availing TSD

CUDDALORE 230 KV

Approval by SE/O


230 KV Checkanurani - Nallamanaikanpatty feeder entire


110 KV KGTPS-PALAIYUR FEEDER BREAKER WITH ENTIRE LINE AT BOTH END.

REGULAR AND ROUTINE BREAKER MAINTENANCE AND TESTING WORKS.



SAMAYAPURAM 230 KV

110 KV SMPM-Kallakudi -II # CT's , Breakers and entire line portion (tied feeder) .

Monthly Maintenance Works and Line Patrol Work.

1. During the above LC Period, 110Kv Kallakudy II # Breaker is in H/T condition at 230KV Tahtchankurichy SS . 2.110Kv Thatchankurichy II# Breaker is in H/T condition at 110KV kallakudy Grid SS. 3.Bus and Line Isolator towards 110KV Kallakudy Grid SS will be kept in open condition at 230KV Thatchankurichy SS. 4.Line Isolator towards 230KV Thatchankurichy SS will be kept in open condition at 110KV Kallakudy Grid SS. 5. Earth switch will be kept in closed condition at 110Kv Kallakudy grid ss and 230KV Thatchankurichy SS. 6.110 KV Kallakudi-I # will be in tied condition. 7.There will be no interruption to any other SS.


AMUTHAPURAM 230 KV




SALEM AUTO 230 KV

110KV Salem – Sankari feeder section between Salem 230KV SS – Veerapondy 110KV SS

1. 110KV Salem – Sankari feeder breaker kept hand tripped at Salem 230KV SS.2. 110KV series switch at Veerapondy 110KV SS towards Salem will be kept opened.3. 110KV AB switch at Mallasaudram 110KV SS towards Salem will be kept opened.4. There will be no supply in 110KV Salem – Sankari feeder section between Salem 230KV SS –Veerapondy 110KV SS.5. Veerapondy 110KV SS will be radially fed from Sankari 110KV SS.6. Mallasamudram 110KV SS is availing TSD on that day.7. There will be no interruption to any SS.

Sub to Mallasamudram110 availing TSD and Veerapondy110 fed from Sankari 110

ALAGARKOIL 230 KV


KARAMADAI 230 KV

230KV Karamadai- Ingur feeder breaker, CT's& CVT's

For monthly maintenance work of 230KV Karamadai- Ingur feeder breaker, CT's& CVT's

Other #s will cater the load .

SALEM AUTO 230 KV

1. 110KV Sankari feeder will be radially fed from other end upto Veerapandai 110KV SS feeding Veerapandai 110KV SS only. 2. Mallasumathram 110KV SS will be availing total shutdown.3. The series switch towards Salem will be kept opened at Veerapandai 110KV SS and Mallasamudram 110KV SS. 4. There will be no interruption to any SS or Feeders

Sub to Mallasamudram110 availing TSD and Veerapondy110 fed from Sankari 110

KORATTUR 230 KV



NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1476 Madurai 59554 110 KV 110KV Palaiyur- KGTPS feeder entire Line inspection and rectification work POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1477 Erode 59573 230 KV Both end LC applied Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Sub to wind Generation Approved

1478 Erode 60030 230 KV 230KV Puthansanthai-Pugalur # line entire Jumper tightness checking Other feeders will cater the load Postponed Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1

1479 Erode 59587 110 KV For monthly maintenance works. Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1480 Chennai 59732 110 KV 110 KV Villupuram- Kandamangalam # Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1481 Erode 59737 230 KV Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 16:00 1 Sub to load condition Approved

1482 Erode 59777 230 KV 230 KV Myvadi I # Breaker, CTs & Line entire Possible Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 17:00 1 Sub to wind Generation Approved

1483 Chennai 58738 110 KV 110 KV Kits park Feeder Monthly Maintenance Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Approved

1484 Madurai 59809 110 KV POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 SUB TO TOTAL S/D Approved



1487 Chennai 59931 110 KV 110 KV S.P.Koil -Veerapuram I Feeder Quarterly Mtce Work 110 KV SPKL -Veerapuram II Feeder will be in tied Condition Possible Tue, 29/Aug/2017 0:00 Tue, 29/Aug/2017 0:00 1 Approved

1488 Madurai 58835 400 KV kamuthi 400 KV MONTHLY MAINTENANCE WORK Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 17:00 1 REPEAT Repeat

1489 Erode 59977 110 KV 110 KV SSREL # Breaker, CTs & line isolators Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 16:00 1 Approved



1492 Erode 60046 110 KV BHAVANISAGAR 110 KV GC & 11 KV LV Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 18:00 1 Sub to PWD Demand


1494 Erode 60088 230 KV 1. 230KV CBE-TDLR feeder Breaker & CTs Monthly Maintenance Works Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 16:00 1 Approved

1495 Erode 60100 110 KV 110 KV Sankari -II # CT Breaker For monthly maintenance Other radially fed from other end Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1496 Erode 60118 230 KV 230 KV Deviakurichi-STCMS Feeder jumper tightness work Posible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC

1497 Erode 58764 110 KV INGUR 230 KV Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 14:00 1 Approved

1498 Madurai 58773 230 KV 230 KV Tie breaker Monthly maintenance Work POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1499 Madurai 58818 110 KV For monthly maintenance work . No SS will be affected. Both end Programmed POSSIBLE Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved

1500 Madurai 58831 400 KV kamuthi 400 KV MONTHLY MAINTENANCE WORK POSSIBLE Tue, 29/Aug/2017 10:00 Tue, 29/Aug/2017 17:00 1 Approved

1501 Erode 58861 230 KV 230 KV STCMS # Breaker, CTs and line side isolator For Monthly Maintenance work Possible Tue, 29/Aug/2017 9:00 Tue, 29/Aug/2017 17:00 1 Approved SGC


1503 Madurai 58991 230 KV For monthly maintenance works. Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 REPET Repeat

1504 Madurai 58992 230 KV For monthly maintenance works. Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 REPET Repeat

1505 Madurai 59156 110 KV On 110KV KKDI-A.Koil# S/B A.Thekkur- S.Punari. Tree Cutting Work. Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved


1507 Erode 58550 230 KV 230/110 KV Auto Tr-I with HV & LV breaker & CTs Other Two Auto Tr. II & III will share the loads Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 18:00 1 Approved

1508 Madurai 58639 230 KV 230Kv Bus Coupler Breaker. For Monthly Maintenance Work. POSSIBLE Wed, 30/Aug/2017 10:00 Wed, 30/Aug/2017 17:00 1 Approved

1509 Madurai 59254 110 KV 110 KV SRP-MPL # Br ,CT & Line switch NOT POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 DUE TO WIND GEN Not Approved

1510 Chennai 58907 400 KV 400 KV Vallur-II feeder and its equipments 400 KV Vallur -II feeder will not be in service. Wed, 30/Aug/2017 10:00 Wed, 30/Aug/2017 17:00 1 Approved

KADALANGUDI 230 KV

During the above LC period there is no supply interruption to any SS.110KV palaiyur SS proposed total Shut down on the same day.


Udumalpet 400 KV

230KV Myvadi- Ponnapuram - 1 # Breaker & CT line entire


UNJANAI 230 KV

Already approved for 16.8.17 & 30.8.17



110KV K.N.Patty feeder CB, CTs and Line Switch.110KV East Bus, its PTs and Bus Switches-5 Nos.

During LC period110KV K.N.Patty SS availing Total Shut down.110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder.110KV Sendamangalam SS now fed through 110KV PSI-Valayapatty feeder will be transferred to 110KV Pugalur-Kabilarmalai feeder.No supply interruption.

Sub to K.N.Patty SS availing TSD. 110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder. 110KV Sendamangalam SS now fed through 110KV PSI-Valayapatty feeder will be transferred 110KV Pugalur-Kabilarmalai feeder.

Villapuram 110 KV


1.110KV AB Switch at Valavanur SS towards Villupuram SS side will be kept open2.110KV Valavanur SS & 110KV Kandamangalam SS will be availing Total shutdown.3.Hence no interruption of supply in any SS.

ARASUR 230 KV

230 KV Arasur-Kundha PH-II Feeder Breaker and CTs and line entire.



PONNAPURAM 230 KV


1.230KV Grid #, Hence No SS will be affected,2.230KV Myvadi SS will also avail LC at their end.

VEERAPURAM 230 KV

110 KV Kits park feeder load ( 110 KV Madampakkam SS ) To be transferred to 230 KV SS Kits park

ANUPPANKULAM 230 KV

110 KV Thulukkapatty-Aruppukottai # section between 110 KV MRPM SS & 110 KV Thulukkapatty SS

(a) For providing GI Metal spike on tower cross arm . (b) For monthly maintenance work

During the LC period 110 KV MRPM SS, Velayuthapuram SS, 110 KV EHT Ramalinga mills and Thulukkapatti SS under total shut down.110 KV APK SS loads will be transfer to 110 KV Kavanoor-Kamuthi #, along with all solar generation. Hence No SS affected.

VALUTHUR 230 KV

110 KV Arkay -Keelakarai-Valinokkam-Kavanoor feeder section between Arkay and Keelakarai

For attending Tower to Tower Inspection and Tree cutting work

110KV supply radially fed to 110KV Keelakarai ss from 110KV kavanoor - Volinokkam feeder fed from Kavanoor SS

SUB TO LOAD CONDITION AND ARKAY GEN


1.110 KV Dharmapuri feeder breaker, CTs and Line Switch

Carryout Monthly SS Maintenance works by Maintenance

110 KV Dharmapuri SS Availing total Shutdown Expected Load Relief : 24 MW hence there is no interruption of power supply and 110 KV Adhiyamankottai SS Feed through 110 KV Ramiyanahalli feeder from 230 KV Karimangalam SS.

Sub to Dharmapuri110 availing TSD and Athiamankottai110 fed through Ramayanahally #

S.P.KOIL 230 KV

400/110KV ICT 5 MAIN,LV BREAKERS WITH CT AND TRANSFORMER BAY NO 413 AND 109

110KV LOAD WILL BE SHARED BY ICT 3 AND 4 NO FEEDER OR SS AFFECTED

SINGARAPET 230 KV


During the LC period 1. Singarapet end breaker alreay in Handtrip condition2. By availing blink between 110 KV Singarapet - SSREL feeder line isolators towards Singarapet at 110 KV Uthangarai SS will be opened. 3. 110 KV Uthangarai SS loads already fed by Karimangalam SS

# already radial from Kariamangalam230

THANJAVUR 230 KV

110 KV Thanjavur - Punalkulam feeder Breaker, CT & LI

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For annual relay testing works by the AEE/P&C/Thanjavur.

During the LC period,1) 110 KV Punalkulam - Trichy feeder will be radial from Trichy 230 KV SS upto Punalkulam 110 KV Grid SS,2) Punalkulam 110 KV Grid SS will avail shutdown on the same day,3) othe end (i.e. Punalkulam 110 KV Grid SS) also will avail LC on the same day,4) all other 110 KV feeders will be in tied condition,5) no supply interruption to any SS.


Singarapet 110 KV

110KV SAMALPATTI RAILWAY # II SF6 BREAKER, CT'S AND LINE SIDE ISOLATORS


DURING THE LC PERIOD,1) SAMALPATTI RAILWAY # II HAND TRIP CONDITION AT SINGARAPET SS END2) THE SAMALPATTI RAILWAY TRACTION LOAD FED FROM 110 KV SAMALPATTI RAILWAY # I3) HENCE, THERE IS NO INTERRUPTION OF SUPPLY.

Traction load will cater by #I

LOWER METTUR 1

For GRT Annual Relay Tests in 110 KV GC & 11 KV LV Breakers at MHPH / Bhavanisagar

1. During LC period, it is expected that PWD demand will be NIL. Hence, generation loss may not arise.2. During Lc period, it is expected that RBCPH PWD demand will be only 5 c/s, hence generation loss will not arise at RBCPH.3. During LC period, only 110 KV GC and 11 KV common LV breakers will be hand tripped. 110 KV feeders will not be affected. Hence no SS will be affected.



230 KV VNM - Shoolagiri feeder breaker, CTâ€™s & line isolators

For attending monthly maintenance works and for jumper tightness checking works in cut point towers of 230 KV VNM â€“ Shoolagiri #.

1,Total shutdown has been approved by CE/D/Vellore vide Memo. No.:CE/D/VLR/EE/AEE/Gl/ F. Shut down/ D. 337 /2017, Dt:22 .07.2017 2,SE/D/Tirupatture vide Memo.No:SE/TEDC/TPR/ Gen AE / F.Shutdown/D.717/17, dt:24.07.2017.3,There will be no interruption of supply to any sub stationS.

133rd OCC approval no:149. SRLDC / BLR may be addressed

COIMBATORE 230 KV

230KV Coimbatore SS will be fed from 230KV OKM-CBE feeder of 230 KV OKM SS

230KV OKM # will cater the load.


Sub to load condition after issuing 110KV Slm - Sankari # line section

DEVIAKURICHI 230 KV

1) The Deviakurichy 230KV SS availing Breaker, CT’s maintenances work .2) There will be no interruption any other SS.

Subject to TAQA Generation

110 kv ingur-ponnapuram I (kurkathi I)#section between ingur 230 kv ss and 110 kv chennimalai ss.

110 kv line maintanance work,cut point jumper tightening work by ingur lines section.

no ss will be affected during LC period .110 kv chennimalai ss availing total shutdown on 29/08/2017.

Dharapuram110 fed from Kurukathi230

KODIKURICHY 230 KV



On 110KV TTN-Sipcot-II feeder breaker with CT bus and line side switches


400/110KV ICT 5 MAIN,LV BREAKERS WITH CT AND TRANSFORMER BAY NO 413 AND 109

110KV LOAD WILL BE SHARED BY ICT 3 AND 4 NO FEEDER OR SS AFFECTED


DEVIAKURICHI 230 KV

230 KV Deviakurichy- Valayapatty & Singapuram Feeders will be in service

Sub to TAQA gen and # tie condition

KAYATHAR 230 KV

110 KV Kayathar - Kodikurichi Feeder, Breaker with CT only



On 230 KV Sipcot-KVNR feeder breaker with CTs and line isolators only.





KARAIKUDI 230 KV

During the L.C Period the 110KV S.Punari SS loads will be transferred to 110KV Kottampatty #(tied from 230KV A.koil SS).


KAYATHAR 230 KV

110KV KYTHR-KODIKURUCHI FEEDER SEC B/W THERKUPATTI &KEELVEERANAM


DURING THE LC PERIOD,1.THERKUPATTI SS WILL BE RADIALLY FED FROM KAYATHAR HENCE NO SS AFFECTED.

THUDIALUR 230 KV

For Monthly maintenance works & OLTC chamber diaphragm replacement work

Sub to other Autos load condition

VEERANAM 230 KV

During the LC period no Interruption of supply in 230Kv and 33Kv feeders. Concurrence Obtained from SE/NCES/TIRUNELVELI.

SRPUDUR 230 KV

Monthly Mainteanace work,Annual Relay testing work

During the LC period 110/11 KV Aralvaimozhi SS ,Muppandal SS will avail backfeeding from 110 KV SRP-Sankaneri feeder. Hence no ss will be affected.

Alamathy 400 KV

For annual relay testing and maintenance works.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1511 Erode 58926 110 KV 110 KV Bus section Breaker ( Breakers & C.T's) For monthly maintenance works. Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 14:00 1 Approved SGC

1512 Madurai 58958 110 KV For monthly maintenance work. POSSIBLE Wed, 30/Aug/2017 10:00 Wed, 30/Aug/2017 16:00 1 Approved

1513 Madurai 58975 230 KV On 230KV Sipcot - Kavanoor feeder entire For Tower to Tower Inspection work. No ss will be affected. POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved


1515 Madurai 59051 230 KV Monthly Maintenance work POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1516 Chennai 59054 110 KV 110 KV PALLAVARAM FEEDER Quarterly Maintenance work. 1.LOAD MANAGED BY PALLAVARAM END Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 12:00 1 Approved

1517 Erode 59068 110 KV GOBI 230 KV 110 KV Periyakodiveri - Moyar feeder Redially fed from Moyar end Possible Wed, 30/Aug/2017 10:00 Wed, 30/Aug/2017 17:00 1 Approved

1518 Madurai 59161 230 KV On 230KV Bus Coupler # Bkr & Ct's. POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved



1521 Erode 58678 110 KV Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 12:00 1 Approved SGC

1522 Erode 59279 110 KV GOBI 230 KV 110 KV BUS COUPLER Breaker with CTs Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1523 Madurai 59331 230 KV For MMW,LMW &P&C Work During LC period there will be no supply in the entire feeder POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1524 Chennai 59663 110 KV 110 KV Capacitor Bank I with Breaker & CT’s For monthly maintenance works 110 KV Capacitor Bank II will be in service Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1525 Chennai 58710 400 KV 400KV HV-5 Breaker (0252) Quarterly maintenance work Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1526 Erode 59459 230 KV Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Sub to wind generation Approved

1527 Erode 59464 230 KV 230KV Salem KR Thoppur Link-II feeder Tension point jumpers checking work Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Sub to load condition Approved

1528 Madurai 59471 230 KV 230 KV KAVANOOR-SIPCOT # LINE MAINTENANCE WORKS NO SUPPLY IN THE FEEDER POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1529 Erode 59778 110 KV 110 KV Southern Bus Entire For monthly maintenance works Postponed Wed, 30/Aug/2017 10:00 Wed, 30/Aug/2017 17:00 1 Not Approved

1530 Erode 59979 110 KV Approved Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 16:00 1 Approved

1531 Erode 59516 230 KV LC programmed at other end also Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 14:00 1 Sub to load condition Approved

1532 Erode 59519 230 KV Monthly Maintenance work. Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Sub to load condition Approved

1533 Erode 60031 230 KV 230KV Puthansanthai-Pugalur # line entire Jumper tightness checking Other feeders will cater the load Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1

1534 Madurai 59555 110 KV Line inspection and rectification work POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved

1535 Erode 60081 230 KV Possible Wed, 30/Aug/2017 9:00 Thu, 31/Aug/2017 18:00 2 Sub to load condition Approved SGC

1536 Erode 60082 230 KV Capacitor Bank.I entire Monthly Maintenance NO FEEDERS WILL BE AFFECTED DURING THE LC PERIOD Approved Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1537 Madurai 59557 230 KV 230KV Kadalangudy-PPN-II feeder entire POSSIBLE Wed, 30/Aug/2017 8:00 Wed, 30/Aug/2017 18:00 1 Approved

1538 Erode 59575 230 KV 230KV Myvadi- Bus coupler Breaker Myvadi end only Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 14:00 1 Approved


1540 Erode 59593 230 KV For monthly maintenance works. Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved SGC

1541 Madurai 59613 110 KV POSSIBLE Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 SUB TO TOTAL S/D Approved

1542 Erode 59668 110 KV 110KV Malco Feeder III Monthly maintenance work During the LC period 110KV Malco I & II feeders will be in service. Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved SGC

1543 Chennai 59702 230 KV 230 KV â€“ TAQA â€“ Perambalur Line Entire Feeder. Alternate supply from Trichy end Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved

1544 Erode 59736 230 KV Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 16:00 1 Sub to load condition Approved

1545 Erode 59743 230 KV Monthly maintenance and P&C check. 230 KV Sadayapalayam-Ponnapuram feeder in service. Possible Wed, 30/Aug/2017 10:00 Wed, 30/Aug/2017 17:00 1 Sub to wind generation Approved

1546 Chennai 59981 230 KV 230 KV NCTPS-ETPS feeder Jumper tightness at various location All other feeder will be in services Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved



During the LC period,1)110 KV OKM-TDLR II feeder loads will be transferred to 230 KV TDLR SS.2)110 KV OKM-TDLR I feeder loads will be transferred to 230 KV TDLR SS (if necessary)3)with support of wind generation to cater the ss loads.Hence no ss will be affected.

Sub to load division to Auto tr.1. 110KV TDLR #s 1&2 will be kept radial from TDLR230 if nessasafy

PERAMBALUR 230 KV

110KV DSSL Feeder (Krishnapuram) breaker CT's only

During the above period of shut down i) 110KV Krishnapuram SS,110KV Esanai SS availing total shut down. ii)110KV Managalamedu SS and Dhanalakshmi sugars will be radially fed from 230KV Deviyakurichy SS.

SUB TO LOAD CONDITION AND CONCURRENCE FROM ERODE/SLDC







Kayathar 400 KV

230KV Kayathar 1 feeder main breaker (204-52) & CT,CVT,LAS

During the LC period there will be no supply in 230KV Kayathar 1 feeder main breaker (204-52) & CT,CVT,LAS. Hence no substation affected.

ALREADY UNDER OUTAGE

KADAPPERI 230 KV

GRT Annual relay test and Maintenance work

Sub to 110KV Gobi - Bhavani sagar # loading

KARAIKUDI 230 KV

For Monthly Mtc Work.Annual Relay Test By GRT.

During the L.C Period the 230KV B.C Bkr under Stand by Condition Hence there will be Nointerruption of Supply.


1)230kv RNPM-CKNI # Breaker,CT & LIne switch2)230kv RNPM-CKNI # Entire line

1)a)monthly maintenance b)RElay testing2)Tree cutting

During LC period other end also programmed for availing LC in this feeder.


ORAGADAM 230 KV

110KV feeders: Kadaperi #, SingaperumalKoil # I & II, Palayaseevaram #, Bus coupler Breaker I & II, Northern BUS

Monthly Maintenance of Breakers, CT's and Isolators

i) Kadaperi # load transferred to Kadaperi SS, ii) 110KV Singaperumalkoil # I & II radial from SP Koil SS, 110KV GC, 110KV Renault Nissan #, 110KV Apollo tyres # will be in service.

ANTHIYUR 230 KV

110KV ANTHIYUR-GOBI FEEDER BREAKER AND CT ONLY

FOR MONTHLY MAINTENANCE OF CT,BREAKER

110KV TN PALAYAM SS PROGRAMMED TO AVAIL TOTAL SHUT DOWN ON 30.08.17 AND DURING THE LC PERIOD 110KV ANTHIYUR-GOBI FEEDER WILL BE KEPT IN RADIAL FROM OTHER END.HENCE NO SS WILL BE AFFECTED

Sub to TN Palayam availing TSD and # kept radial from Gobi230

For Monthly maintenance work and for GRT Relay testing work

Subject to the load condition of 110 KV Periyakodivery feeder and 110 KV Bhavani sagar feeders in 110 KV Western side Bus.

Sub to division of loads to Auto Tr1


230 KV Checkanurani - Renganathapuram feeder entire


CUDDALORE 230 KV

Approval by SE/O


During the period of shutdown 400KV TIE Breaker (0352) will be continued in service


PALLADAM 230 KV

230KV Palladam -Sadayapalayam # Breaker CT's and line entire

To carryout monthly maintenance work by AEE /M/Palladam and Premonsoon line inspection work by AEE/Lines/Palladam

During LC Period 1) Other Three 230 KV Feeders (PGCIL #,OKM# and Krukathi #'s ) will be in service2)Other end availing LC 3)No other SS will be affected

SALEM AUTO 230 KV

1. 230KV Salem - KR Thoppur Link-II feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. Both ends are availing breaker and line switches LC.4. There will be no interruption to any SS.

KAVANOOR 230 KV


PONNAPURAM 230 KV

Subject to the wind generation, 1.110KV Thungavi # will be will be kept radil from 230KV Udt SS / 110KV Poolavadi #, 2.110KV Pethappampatty # will be kept radil from 230KV Udt SS / 110KV PNPM #, 3.110KV Ingur-I & II will be kept radial from other end,4. Auto Trs. I&III will be cut off, 5. Hence Load will be with limits of other one Auto Tr.& No SS will be affected.

Wind Generation will be affected and Auto Tr.2 will overload

SINGARAPET 230 KV

110 KV Capacitor bank II Breaker, CTs and Capacitor units


During the LC period 110KV Capacitor bank II breaker will be in hand trip condition

Sub to 110KV Bus voltage

KARAMADAI 230 KV

230KV Karamadai- Arasur feeder breaker, CT's& CVT's

For monthly maintenance work of 230KV Karamadai- Arasur feeder breaker, CT's& CVT's

SALEM AUTO 230 KV

230KV Link Feeders II Breakers, CTs & Line Isolators

1. 230KV Link-II feeder LC will be availed at both ends. 2. 3Nos 230KV feeder will be in service 3. There will be no interruption to any SS or feeder.

UNJANAI 230 KV


KADALANGUDI 230 KV

110KV LTPCL-Manalmedu-Vaithiswaran Koil feeder entire

During the above LC period there is no supply interruption to any SS.110KV Manalmedu SS proposed total shut down on the same day.

ARASUR 230 KV

230 KV Arasur-Karamadai # breaker,CT'S ,Control and relay panels

For changing of MICOM relay in MAIN -I & II by GE relay in 230 KV Karamadai relay panel by P & C wing/Thudialur.


UDUMALPET 230 KV

Sub to 110KV Bus voltage

KADALANGUDI 230 KV

1)Maintenance work at kadalangudy end 2)Line inspection and rectification work 3)Preventive maintenance work at PPN plant end

During the above LC period there is no supply interruption to any SS. PPN power company proposed LC request for the above feeder on the same day. all other 230KV feeders are in tied condition at both end.


Udumalpet 400 KV


All #s both bus isolators are in closed conditon

ALUNDUR 230 KV

110KV Alundur - Trichy-II Feeder breaker,CT's, and Line Isolators.

a)Monthly maintenance work. B)Relay testing work.

During the LC period, a)Other end also availing shut down. and Intermediate 110KV Manikandam SS Also avail total shut down. b) All other 110 KV feeders will be in service. c)There will be no interruption of supply to any other feeder's and ss.



230KV idle Bus, Bus Coupler CB & CTs and idle Bus side Bus Coupler Switch.

Before availing LC 230KV Unjanai, Pugalur & Deviakurichy feeders, Auto-I & Auto-II will be transferred from 230KV Bus-A to Bus-B.During LC period230KV Bus-A idly charged through Bus Coupler CB & CTs will be hand tripped.Therefore no supply interruption.

Sub to transfer of all loads to 230KV Bus B


A) 110KV NEMMELI THIPPIYAKUDI-KOVILKALAPPAL (VIA:VADASERI) FEEDER BREAKER, CT's, AND LINE ISOLATOR. B) 110KV NEMMELI THIPPIYAKUDI-KOVILKALAPPAL (VIA:VADASERI) FEEDER ENTIRE.

A) FOR MONTHLY PREVENTIVE MAINTENANCE WORK BY AEE/MTC/ N.T.KUDI. B) FOR PREMONSOON INSPECTION WORK BY AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD 110/33-11KV VADASERI SS WILL AVAIL TOTAL SHUTDOWN 2) NO INTERRUPTION TO ANY SUBSTATIONS AND ALL OTHER 110KV FEEDERS ARE TIED CONDITION.

METTUR AUTO 230 KV

Other #s will be in service and sub to Malco Gen. if any

CUDDALORE 230 KV

Checking of jumper Tightness at Railway crossing locations and replacement of flashover insulators at various locations

ARASUR 230 KV

230 KV Arasur-Karamadai Feeder Breaker and CTs and line entire.




230 KV Sadayapalayam-Palladam feeder breaker and Isolators.

KORATTUR 230 KVTRICHY 230 KV

110KV TRICHY - ALUNDUR II breaker,CTs & Line Isolator and line entire.


During the LC period, a) other end also availing shutdown for monthly maintenance work b) Intermediate 110 KV Manikandam SS also availing Total shutdown c) All other 110 KV feeders will be in service d) There will be no interruption of supply to any other feeders & SS.




NoName of the LDC

Voltage Level (KV)

From Substation

Recommendations

From Time

To Time

No. of days

1548 Erode 60047 110 KV Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 18:00 1 Sub to PWD demand

1549 Erode 58765 110 KV INGUR 230 KV Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 14:00 1 Approved SGC

1550 Erode 58824 230 KV Salem 400 KV monthly maintenance work Both end Monthly Maintenance Work Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Sub to load condition Approved


1552 Erode 400 KV 400 / 230 KV ICT -1 Monthly Maintenance works by Maintenance wing Possible Wed, 30/Aug/2017 9:00 Wed, 30/Aug/2017 17:00 1 Approved SGC


1554 Erode 58657 230 KV 230KV BUS COUPLER BREAKER AND CT Postponed Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1555 Madurai 58886 230 KV 230KV Bus II 230KV BUS II maintenance work POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1556 Madurai 58887 230 KV 230KV PPN - Thanjavur feeder POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1557 Chennai 59031 230 KV 230KV Sriperumbudur - Kadapperi feeder I Insulator replacement work. Possible Thu, 31/Aug/2017 5:00 Thu, 31/Aug/2017 12:00 1 Approved

1558 Madurai 59055 230 KV Monthly Maintenance work POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved SGC

1559 Madurai 59164 110 KV Tower to Tower Inspection work. POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1560 Madurai 59175 230 KV For monthly maintenance purpose. POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 14:00 1 Approved

1561 Madurai 59332 230 KV 230 KV B BUS For MMW B Bus standby condition, All the 230 KV feeders are in A Bus POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1562 Erode 59463 230 KV 230 KV TBC Breaker and 230 KV Transfer Bus 1)Idle Breaker and Idle Bus 2)No other SS will be affected Possible Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Idle Bkr and Bus Approved

1563 Madurai 59474 110 KV 110 KV KAVANOOR-PIONEER (PENNA) LINE MAINTENANCE WORKS PENNA-VALUTHUR TO BE IN SERVICE POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1564 Erode 59520 110 KV Monthly Maintenance work. Possible Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved SGC

1565 Erode 60083 110 KV Capacitor Bank.II entire Monthly Maintenance NO FEEDERS WILL BE AFFECTED DURING THE LC PERIOD Approved Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1566 Erode 59577 230 KV Myvadi end only Possible Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 14:00 1 Approved

1567 Madurai 59586 230 KV 230KV Bus coupler Breaker,CT's. POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved


1569 Erode 59651 110 KV KUNDAH PH3 110 KV PH2 TO THUDIYALUR II FEEDER For pre -monsoon inspection work Both ends are open condition; Earth switch closed condition. Possible Thu, 31/Aug/2017 8:00 Thu, 31/Aug/2017 17:00 1 Approved

1570 Erode 59670 110 KV 110 KV MDPH Feeder II Monthly maintenance work During the LC period other 110KV feeders will be in service. Possible Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Sub to load condition Approved

1571 Erode 59779 230 KV 230 KV Myvadi II # Breaker, CTs & Line entire Possible Thu, 31/Aug/2017 10:00 Thu, 31/Aug/2017 17:00 1 Approved

1572 Madurai 59808 230 KV POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 12:00 1 Postponed


1574 Madurai 59863 110 KV 110KV VGTPS - Phase II line 3 POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1575 Chennai 59935 230 KV 230 KV S.P.Koil - Omega Feeder Line Mtce Work All other 230 KV Feeders will be in service Possible Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved


1577 Madurai 60003 230 KV 230KV PPN- Thanjavur feeder entire Line inspection and rectification work. POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved

1578 Erode 58815 110 KV Monthly maintenance Possible Thu, 31/Aug/2017 15:00 Thu, 31/Aug/2017 17:00 1 Approved SGC

1579 Madurai 58822 230 KV On 100 MVA Auto Tr - II , HV-II, LV-II For Monthly Maintenance Works POSSIBLE Thu, 31/Aug/2017 9:00 Thu, 31/Aug/2017 17:00 1 Approved


LOWER METTUR 1

BHAVANISAGAR MHPH 25 MVA 110 / 11 KV POWER TRANSFORMER

For GRT Annual Relay Tests in 25 MVA, 110 / 11 KV Power Transformer at MHPH / Bhavanisagar

1. During LC period, it is expected that PWD demand will be NIL. Hence, generation loss may not arise.2. During Lc period, it is expected that RBCPH PWD demand will be only 5 c/s, hence generation loss will not arise at RBCPH.3. During LC period, only 110 KV GC and 11 KV common LV breakers will be hand tripped. 110 KV feeders will not be affected. Hence no SS will be affected.


110 kv ingur-Thingalur# section between 110 kv thingalur ss and 110 kv kunnathur ss.

Takeoff tower and cut point jumper tightening work on 110 kv pg palayam ss LILO

10 no ss will be affected during LC period.2)110 kv Pg palayam ss availing total shutdown pn 30/08/2017.

Sub to PGPalayam availing TSD and # kept radial from Ingur230

230 KV LINK II # ,CT, BREAKER, BUS & LINE SWITCHES

KAYATHAR 230 KV

230 KV Kayathar - 400 KV Ky I Link feeder breaker with CT and entire line

a) For monthly maintenance workb) Tower to tower inspection work


ALREADY UNDER OUTAGE

PALAVADI 400 KV


No interruption of supply, and Load fed through 230 KV Bus from 230 KV SS Mettur to Karimangalam

THANJAVUR 230 KV

230 KV Thanjavur - PPN feeder, Breaker, CT, CVT & LI

1) For Tan-Delta testing works by P&C/Madurai,2) Thiru K.Ramasubramanian, Shift-in-Charge / PPN Plant has requested LC to carry out maintenance works in bay isolators at PPN plant end.

During the LC period,1) PPN plant end also will avail LC on the same day, 2) all other 230 KV feeders will be in tied condition,3) no supply interruption to any SS.

LC MAY BE PROGRAMMED ON 31.08.17 DUE TO 230 NTKDI-TVR # LC

ANTHIYUR 230 KV


DURING THE LC PERIOD 230KV BUS-I WITH AUTO TRANSFORMER-I AND 230 KV GOBI FEEDER AND 230KV BUS-II WITH AUTO TRANSFORMER-II AND 230KV MTPS-I FEEDER

110 KV BPH2 - BPH3 # LC recommended

THIRUVARUR 230 KV

During the LC period 230KV BUS - I will be in service. Hence there will be no interruption of supply to any other SS./

THIRUVARUR 230 KV


During the LC period all other 230Kv feeders are in tied condition. Hence there will be no interruption of supply to any other SS.


KADAPPERI 230 KV

230KV Sriperumbudur - Kadapperi II feeder and 230KV Kalivanthapattu - Kadapperi feeder will be in service.

Kayathar 400 KV

230KV Kayathar-2 feeder main breaker (205-52) & CT,CVT only

During the LC period there will be no supply in 230KV Kayathar-2 feeder main breaker (205-52) & CT,CVT only. hence no substation affected.

SUB TO NORMALIZATION OF KYR-KYR(400) LINK 1

KARAIKUDI 230 KV

On 110KV KKDI-DVKT # S/B DVKT-TVNI Entire Line.

During the L.C Period the 110KV DVKT SS Under TSD.Hence there will be No Interruption of Supply.

SANKANERI 230 KV

230/33KV PowerTransformer-III,HV&LV Breaker,CTs only.

During the LC Period PowerTransformer-III willnot beinservice.PowerTransfomer-I&II willbe Carried out the EntireLoad.


CHECKANURANI SW STATION 230 KVPALLADAM 230 KV

To carryout Half yearly maintenance work by AEE/M/Palladam

KAVANOOR 230 KV


SALEM AUTO 230 KV

110KV Southern Bus form Bus Coupler switch No.1989

1. 110KV Capacitor Bank-I ans II will be hand trip condition.2. 110KV K.R.Thoppur-I, II, 110KV Singapuram-I,II and 110KV Sankari feeders will be radially fed from other end.3. Mallur 110KV SS will be fed from Pudansandai 230KV SS.4. 3Nos. Auto Transformer will be in Service.

Sub to Udayapatty110 and Karuppur110 availing TSD and sub to all 110 KV #s kept

UDUMALPET 230 KV

Sub to 110 KV bus voltage

Udumalpet 400 KV

230KV Myvadi-Ponnapuram - 2 # Breaker,CT line entire



ALUNDUR 230 KV

a)Monthly Maintenance work. B)Relay Testing Work.

During the LC period, a) All 230 KV feeders will be service in 'A' bus. b) Auto Tr. I & II and ICT - I, II & III will be service in 'A' bus. c) There will be no interruption of supply to any other feeders.



A) 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-II FEEDER BREAKER, CT' s AND LINE ISOLATER. B) 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-II FEEDER

A) MONTHLY MAINTENANCE WORK BY AEE/MTC/ N T KUDI. B) PREMONSOON INSPECTION BY AE/LINES/PATTUKKOTTAI.C)

1) During the LC period, 110KV Nemmeli Thippiyakudi-Pattukkottai-I Feeder in service. 2) During the LC period, 110KV KARAMBAIYAM SS WILL AVAIL TOTAL SHUTDOWN 3) 110KV Kovilkalappal-Madukkur-Pattukkottai tie will be created (by closing the 110KV Line


Sub to load condition and availing at both ends

METTUR AUTO 230 KV

PONNAPURAM 230 KV


1.230KV Grid #, Hence No SS will be affected,2.230KV Myvadi SS will also avail LC at their end.


ANUPPANKULAM 230 KV


For provinding of over hang loop jumper to 2 - 89 B.( Augmentation of 100MVA to 160MVA )

During the LC period Auto II & III, HV II & III, LV II & III under hand tripped condition. 230 KV APKM - Sterlite feeder under hand tripped condition. Auto Transformer-I will be fed from 230KV Anuppankulam- Madurai and 230KV Anuppankulam - Kayathar feeder sources . 110 KV Aruppukottai SS load will be tramsferred to 110 KV Kavanoor - Kamuthi feeder. 110 KV Anuppankulam - PSQ will be radially fed from PSQ end.

LC POSTPONED TO NEXT MONTH

ANUPPANKULAM 230 KV

(a) 110 KV K.G. Patti - Kayathar feeder section between 110 KV Perumal patti SS and 110 KV Mudangiar SS. (b) 110 KV Suruliyar - Kayathar feeder section between 110 KV Sangarankoil SS and Suruliyar PH

(a) For replacement of flash over disc at Loc. No. 6, 7 & 21. (b) Tree cutting works.

(a) During the LC Period 110 KV Perumal Patti SS will be radially fed from 110 KV Kayathar SS and 110 KV Mudangiar SS & Seithur SS will be under Total shut down (b) During the LC period 110 KV Sangarankoil SS will be radially fed from 110 KV Kayathar SS. Hence no ss will be affected.


VALUTHUR 230 KV

For attending breaker and it's CT's and isolators Monthly Maintenance work.

During the LC period 110KV VGTPS - Phase I line 3 and VGTPS Phase I line 4 will be in service. Hence there is


S.P.KOIL 230 KVTHANJAVUR 230 KV

230 KV Thanjavur - PPN feeder, Breaker, CT, CVT & LI.

1) For monthly maintenance works by AEE/Mtce/Thanjavur,2) For line rectification works by AEE/Lines/Thanjavur,3) Thiru K.Ramasubramanian, Shift-in-Charge / PPN Plant has requested LC to carry out maintenance works in CVT & LAS at PPN plant end.

During the LC period,1) PPN plant end also will avail LC on the same day, 2) all other 230 KV feeders will be in tied condition,3) no supply interruption to any SS.


KADALANGUDI 230 KV

No interruption to any SS. Already LC requested by PPN plant manager on the same day. All other feeders will be in tied condition.


SINGAPURAM 230 KV

110 KV Salem -I feeder (between 15.00 hrs to 17.00 hrs. i.e after completing LC at Salem end.)/CT,Breaker


Sub to Udayapatty 110 availing TSD and # kept radial from Salem230


No SS will be affected. During this LC period all 110 KV feeders will be fed from 230 KV Meelavittan SS & 110 KV Arni SS


KAYATHAR 230 KV

230 KV kayathar - 400 KV Kayathar II link feeder, breaker with CT and entire line

a) For monthly maintenance workb) Tower to tower inspection work


SUB TO NORMALIZATION OF KYR-KYR(400) LINK 1

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