Date 24/10/13

Addendum no:- 4181-19-01021, Rev00.

for Specification no TG60720.

Against cl no 01.(B).1:- Sensor requirements will be as follows:-

Fiber Optic Accelerometer:- 8 nos (Instead of 12) (with sealed feed through conditioner& with 6 mtrs Fiber optic integral cable).

Against cl no 2.1:- Vibration monitoring modules requirements will be asfollows:-

Twelve (Instead of Sixteen) channels vibration monitoring modules (2/4 channels permodule) along with associated power supply units will be required

Rest will be as per specification no TG60720, rev00.

Approved By:-

24/0//3. 2A4P13Satish Kumar Shri KB BatraSr.Manager/CIE AGM /CIE & TCX

Generated By:-

TRANSLATED BY

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TG60720

PRODUCT STANDARD

GEN END WINDING VIBRATION MONITORING EQUIPMENT KITHFIBER OPTICS SENSOR FOR TURBO GENERATORS

ti+E EXPEKIENt

This specification covers the requirement of Fibre Optic Vibration Monithring System(FOVMS) for Generator end winding overhang zone. The system will comprise of FO

Vibration Sensors, integrated Cable, Signal conditioners, field 3EYs safety barrier and aCabinet comprising monitoring module, PSU, fuses etc.

The Fiber Optics. (FO .sensors shall ..be . ..:mountect :.:01fforent . locations . . •overhang .spooal: opt ca ntegr l cableand terminated :on..1ë4.(1-49-010tês. There be tro feado plates scope),turbine a td and on • .:::EXcitr ::.61000tirT

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thalt ... mounted. r*s e to,s•:b

cab net having brat on monitoring modules by Ion ooseabes to ersre rnror..corr ton ifs signal..

The :conttol.. :cabinet.. shall i..:PeototI:.(Or•••otrior:•::ropote0' ma e, sobj t toapproval).. The degree. of :!.0.040c01.).00 ill beplaced. ire air :.:OinditiOlipd•'••••:•r00.m..itj...thé.......06Wee..$0t10h:•...CoottOt.equipment E!.4111 generally .:.be...usetti:to:mprlitor•)(:,(941147.300kiz).:•:Oroti0.0.:Iri:::di$plamode. However,. there . will also be the facility to monito z •::andSigma) values which . shall be software selectable or switch selectable to operator. The:

corresponding ..472Qn*. Outputs four .2X be.u80: .in . the

There shall be inbuilt :'provision fpr supply of 24v to signal conditioner feoto::vibtotino:monitoring mgdu es.-

1.0 GENERA :

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Scope of Supply:-(A) - To be supplied directly to Site (as mentioned in PO)

L End Winding Vibration Monitoring (ENNVM) Cabinet - 1. No.The cabinet will house Vibration monitoring modules, Pais, fuses etc.

2. Any other items/ accessories/ spares which is essential for proper operation of thesystem.

Commissioning at site (To be quoted against separate code)

(B). To'be, supplied to BHEL Haridwar (for mounting on Generator)

L Fiber Optic Accelerometer - 12 nos(with sealed feed through conditioner & with 6 mtrs Fiber optic integral cable)Fiber Optic Accelerometer - 4 nos(with sealed feed through conditioner & with 10 mtrs Fiber optic integral cable)Field Junction Boxes - 2 nos.

4. Cable length from lead-in-plate to JB - 2 mtrs

Also refer figure-02 for typical fig for Fiber Optic Accelerometer and fig-03 for field 3B.

2.0 Technical Requirement The system shall comprise of the followings:

2.1 Sixteen channels vibration monitoring modules (2/4 channels per module) alongwith associated power supply units and accessories mounted in a free standingcabinet of size 600(W)x800(D)x 2200(H) along with inbuilt $0ftWare:. based band

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4:6 pass .filters- for individual channels to filter out required IX and 2x frequenciescomponents

>„-Preferably, the vendor shall supply the microprocessor based, fullyprogrammable modules to provide stator end winding vibrations at 100Hz in

s terms of displacement (0-400 microns Pk-to-Pk). For selected frequency, the 4-20mA hard wired outputs from the vibration monitoring modules will be madeavailable for client's DDCMIS use. The system shall be suitable for redundant230V AC ± 10%, 50Hz UPS power supply (unless specified otherwise in theenquiry / order). Paint shade of the cabinet & JB shall be informed afterplacement of order as per end customer requirement. The paint thickness will be100 Microns minimum.

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2.2 Junction Boxes along with termination accessories. Details as per figure-3.

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2.3 The fiber optics sensor will be mounted inside the Generator by BHEL at itsHaridwar unit.

The fiber optics sensor should meet following requirements:

Operation parameters:-2.3.1 Frequency range: 30Hz - 350Hz.2.3.2 -Amplitude Range : 0-1000 (Peak-Peak ) I 360ms-2 (RMS) @ 100 Hz23.3 Sensitivity : 100 mV/g Acceleration Or 10 mV/ pm Displacement +1- 100/0.2.3.4 Insulation Voltage ( between sensor head and ground ) 2KV2.3.4.1 Normal operation 27 KV at 50 Hz2.3.4.2 During application of 1 minute proof voltage : 56 KV at 50 Hz2.3.5 Operating Pressure/ Environment : 5 bar (Hydrogen)2.3.6 Current : 35 mA each sensor.2.3.7 Power supply : 24VDC.2.3.8 Maximum Shock Acceleration .�.. 5000 ms-2 pk ) for about 1ms2.3.9 Resonance Frequency � 500 Hz2.3.10 Transverse Sensitivity : Typically < 5 0/0 with respect to sensitive axis2.3.1.1 Residual Noise : Typically < 10 mV overall noise in the frequency range2.3.12 Ignition protection :- ATEX EX 1/ 3G mb C T4Environment :-

Temperature : 0 to 90° CRelative humidity : 90% RHMagnetic Field : 1 testa at 50 Hz

iv) Electrical field : 1 KV / film at 50 Hz

c) Physical parameterSensor body: PPO Noryl and Ceramic or any other appropriate high insulationmaterialWeight < 40 gram ( light and compact design will be preferred )Optical Integral Cable Length / 10 meters as per cl no 113.1 /1.B.2Fibre-Optic Cable Sheath : Integral PTFE tubing of dia. mm or

suitable material appropriate with sufficient strength and minimum bendingradius of about 80 mm

3.0 Low Noise screened cables, along with termination accessories for connections betweensignal conditioner and Generator mounted JB.

4.0 Mandatory spares comprising 10% of the installed modules I amplifiers rounded off tonext higher number. These should be quoted separately.

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PRODUCT STANDARD (HEEP- HARDWAR)

TG60720

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Page 4 Of 9

5.0 Any other accessory I item which may be considered essential by thevendor for proper commissioning /measurement /monitoring of thevibration signals.

6.0 ACCURACY:

The supplier shall indicate accuracies and linearity of individual important items likefiber optics sensor, convertor, monitoring modules, 4 - 20 rnA output & overall systemas such.

7.0 ROUTINE TESTING: The equipment shall be subjected to following tests atsupplier's works.7.1 Dimensional details/ visual checking as per the approved GA drawing to

ascertain that model no, offered is as per purchase order and mounting/cutout dimensions are as per catalogues furnished with the offer,

7.2 IR value of terminal blocks to be measured with 500V megger. The valueshall be in M. ohms.

73 Checking of scope I technical particulars covered under clauses 1.0 & 2.0.7.4 HV test at 2kV (rms) for one sec. between live and earth parts as per -

relevant IS (excluding electronics components/ modules). The equipmentwill pass the test withoa failure.

7.5 Burn in test of electronics component should be for 48 hrs at elevated temp(2: 55 °C). The test report of in-house tests carried out for this can beconsidered.

7.6 Functional checking of the equipment as per approved schematics beforedispatch. Vendor to mention "List of all tests" which should be carried outon the components/ module/ overall system at his works to ensure systemperformance at site.

8.0 TYPE TESTING:

The type test certificates of similar equipment for the following climatic tests (whichshall not be older than 5 years) as per IEC60068/ IS9000 (relevant parts) will befurnished along with the offer. If these are not available, the party will carry out thesetype tests from reputed test house and furnish the test certificates to BHEL foracceptance

5.1 Dry heat tipst52Temperature cycle test5.3 Damp heat test5.4Surge withstand test as per ANSI 37.90a or other relevant standards.

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The items shall be packed in 2 Packages (1) For. Site supply (2) For BHEL HaridwarSupply.

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The equipment shall be packed in such a way that no damage occurs to any of itscomponents during transit & storage.

13.0 MARKINGS:

Each package shall be marked with the following:BHEL order numberDesignation of component/assemblySuppliers name & referenceNet weight I gross weight

5. Project Name

TG60720a ci4i4 icia) gtcr Buftgrz)B^lt11

PRODUCT STANDARD (HEEP HARDWAR)

9.0 ACCEPTANCE NORMS :-

9.1 Carrying out of routine tests as per clause 7.09.2 Compliance to clause 8.0

'P:5*Page . 5 Of 9

Calibration data/ curves (between acceleration to mV output upth 15g of acceleration/ data sheet for amplifiers, display modules and 4-20 mA output value shall also besubmitted for approval._ „

Before dispatch test results as per above and in compliance of above shall, be send toBHEL for approval. Dispatch of the equipment shall be subject to approval of thesetest results.

10.0 TEST AND GUARANTEE CERTIFICATES:

Three copies of test certificates for routine & type tests and guarantee certificates inEnglish shall be furnished

11.0 RECOMMENDED SPARES:

The list of recommended spares required for 5 years operation with prices of individualitems will be furnished for BHEL's reference. BHEL reserves the tight to order thesecomponents at prevailing rates within 6 months of the placement of the main order.

12.0 PACKING:

TG60720C4414 C111471413 Virf - 4:Awe)

PRODUCT STANDARD (HEEP HARDWAR)

14.0 INSTALLATION & COMMISSIONING:

The supplier shall arrange for satisfactory commissioning of . supplied equipment at site.The offer for the same will be included in main offer separately. The erection of -cabinqt.and laying of the cables will be done by . BHEL at site.

However, all terminations, installation of. modules, balance activities and commissioningof the system- shall be done by the vendor. The vendor shall also provide trainingto customer site engineers doting visit for better. understanding andOperation of the system at site.

15.0 DOCUMENTS FOR APPROVAL:-

The vendor will furnish GA /Schematic drawings of the offered system including datasheets for the offered amplifiers/ vibration modules! power supply modules etc. forBHEL's approval before dispatch the items.

16.0 O&M MANUALS:-

The OW manuals comprising of -130M with make, installation & commissioning.instructions, operation & maintenance procedure, service procedure, technical/ circuit.details and data sheets of the used instruments will be furnished in hard copy and softcopy, Numbers of O&M manual and CD will be as per inquiry or Purchase Order

17.0 INSPECTION:-BHEL reserves the right to depute their customer's representative during final testingat supplier works.. The supplier will arrange this inspection without any additional cost

18.0 - .QUALITY PLAN AND INSPECTION:

The .complete QA plan giving details of items of . test . to be carried out during the variousstage of manufacturing will be furnished for approval along with offer in BHEL format. BHELreserves its right to depute their / customer representative during testing at supplier works.The supplier will arrange this inspection without any additional charges.

19.0. GUARANTEE:-

The equipment shall be guaranteed for a minimum period of 18 -months from the date. ofsupply or 12 months from the date of commissioning, whichever is earlier. The equipmentshall be guaranteed for a minimum period of 18 months 'from the date of supply or 12

. months from the date of commissioning, whichever is e a rlier..

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