final report - jicaopen_jicareport.jica.go.jp/pdf/12084984_01.pdf · final report december 2012...
TRANSCRIPT
4RJR
12 - 050
Democratic Socialist Republic of Sri Lanka Ceylon Electricity Board
Data Collection Survey on
Electricity Supply System Efficiency in
Democratic Socialist Republic of Sri Lanka
FINAL REPORT
DECEMBER 2012
Japan International Cooperation Agency (JICA)
Nippon Koei Co., Ltd. Tokyo Electric Power Services Co., Ltd.
Sojitz Research Institute, Ltd.
Democratic Socialist Republic of Sri Lanka Ceylon Electricity Board
Data Collection Survey on
Electricity Supply System Efficiency in
Democratic Socialist Republic of Sri Lanka
FINAL REPORT
DECEMBER 2012
Japan International Cooperation Agency (JICA)
Nippon Koei Co., Ltd. Tokyo Electric Power Services Co., Ltd.
Sojitz Research Institute, Ltd.
Democratic Socialist Republic of Sri Lanka Ceylon Electricity Board
Data Collection Survey on
Electricity Supply System Efficiency in
Democratic Socialist Republic of Sri Lanka
FINAL REPORT
DECEMBER 2012
Japan International Cooperation Agency (JICA)
Nippon Koei Co., Ltd. Tokyo Electric Power Services Co., Ltd.
Sojitz Research Institute, Ltd.
Democratic Socialist Republic of Sri Lanka Ceylon Electricity Board
Data Collection Survey on
Electricity Supply System Efficiency in
Democratic Socialist Republic of Sri Lanka
FINAL REPORT
DECEMBER 2012
Japan International Cooperation Agency (JICA)
Nippon Koei Co., Ltd. Tokyo Electric Power Services Co., Ltd.
Sojitz Research Institute, Ltd.
Executive Summary
1
EXECUTIVE SUMMARY
1. Objectives
The main objectives of the Survey are to:
1) Collect and organize the latest information and data on electricity supply system,
including transmission and distribution losses in Sri Lanka;
2) Confirm the system efficiency program prepared by Ceylon Electricity Board (CEB) and
shortlist CEB’s requested projects, which will contribute to the efficiency of the
electricity supply system, to be applied for Japan’s Loan Aid; and
3) Prepare the project summary including conceptual design, approximate cost estimate,
and simplified economic evaluation of the projects requested.
2. Issues on Transmission and Distribution Network
Through the discussions with CEB and site survey conducted, the Survey Team found the
following issues on the existing transmission and distribution network;
1) Issues on the transmission network
i) Rapidly increasing power demand in Colombo City
ii) Transmission lines with old design concept
iii) System reliability
iv) Shortage of reactive power
v) Voltage drop at the end of the network, etc.
2) Issues on the distribution network
i) Overloading in primary substations
ii) Voltage drop
iii) Lack of distribution automation system (DAS)
iv) Lack of energy meters and data transmission
v) Increase of transformer loss by inadequate transformer capacity
vi) Distribution losses caused by long low voltage (LV) lines
vii) Theft of electric power
viii) Resistive losses at connection points on LV lines
ix) Aged and deteriorated facilities
x) Salt contamination along seaside
xi) Tariff for street lighting, etc.
Data Collection Survey on Transmission and Distribution Loss Reduction in Sri Lanka
2
CEB has prepared project proposals as countermeasures against the above issues and
submitted them to the Survey Team in order to request support for Japan’s Yen Loan.
3. Candidate Projects
The Survey Team reviewed the proposed project costs, and estimated the amount of loss
reduction and economic internal rate of return (EIRR) of each project as shown in Table 1.
Table 1 Summary of Candidate Projects
Projects Projects Costs Loss Reduction EIRR
Transmission Projects MLKR MJPY eq. MWh/year % #1 Colombo City Transmission Development with 11 kV DL 21,526 12,743 23,747 18.63 #2 Construction of Kappalthurai GS 1,763 1,044 10,531 16.59 #3 Construction of GSs surrounding Colombo City 17.94 A. Kerawalapitiya 220/33 kV GS 1,294 766 11,041 B. Kalutara 132/33 kV GS 1,289 763 1,246 C. Battaramulla 132/33 kV GS 1,448 857 1,708 #4 Veyangoda – Kirindiwela – Padukka 220 kV TL 5,977 3,538 21,919 16.11
Total Transmission Projects 33,297 19,711 70,192 - Distribution Projects #5 Distribution Development Package in NWP of Region 1 5,271 3,121 16,309 12.92 #6 Distribution Development Package in WPN of Region 2 7,644 4,526 20,293 17.19 #7 Distribution Development Package in WPS-2 of Region 3 8,233 4,874 15,973 18.09 #8 Distribution Development Package in WPS-1 of Region 4 5,143 3,045 7,396 9.85
Total Distribution Projects 26,291 15,566 59,971 - Grand Total 59,588 35,277 130,163 -
(Prepared by the Survey Team)
As shown in the above table, the total project cost was estimated at LKR 59,588 million (JPY
35,277 million equivalent), and total loss reduction amount was estimated at 130,163
MWh/year.
4. Environmental and Social Considerations
All candidate projects will have environmental impacts such as air pollution, noise and
vibration, waste water discharge, and soil contamination. Unsanitary conditions at the
workforce camp without proper treatment facility will expose the laborers to sicknesses.
Moreover, accidents outside the sites could occur any time since the project may affect the
traffic system as the traffic volume is anticipated to be heavier. The degrees of such
impacts, however, are only small scale and temporary during construction period.
Based on the legislations of Sri Lanka and JICA Guidelines for Environmental and Social
Considerations, it can be concluded that the following mitigation measures should be taken
and be monitored during construction period:
Air quality: The amount of SPM has to be monitored periodically, and the construction
Executive Summary
3
method should be altered in case it exceeds the environmental standard.
Water quality: The amount of SS and oil has to be monitored periodically, and the
construction method should be altered in case its impact exceeds the environmental
standard.
Waste: Although waste generated at the construction site and disposal of construction debris
will be collected regularly by the local authority, project staff has to physically observe the
waste disposal condition, and improve the method of disposal in case it is done
inappropriately.
Soil: Project staff has to observe the soil condition, and send the sample soil to laboratories
in case there is any contamination.
Noise and vibration: Time management and appropriate work shifts for particular tasks can
reduce continuous exposure to such noise and vibration.
Working condition: A tangible safety consideration should be given to laborers, such as
wearing helmets, gloves, shoes, and working clothes in order to mitigate the risks of
accidents. Appropriate working hours such as three-shift a day, two days off a week, etc.,
can keep laborers’ health condition well. Treatment systems such as septic tank can be
installed in order to keep a safe and hygienic working condition.
Traffic: In order not to disturb the traffic system in urban areas, in particular where projects
are located, construction work in and around cities/towns can be shifted to night time or
weekends. Advance information disclosure on the construction schedule will also
contribute to minimizing traffic impacts.
Accidents: Project construction during night and weekend shifts can help decrease
disturbance to the traffic in urban areas. Information regarding the construction schedule
should be disclosed in advance so that the locals will be aware and mitigate the risks of
traffic accidents. Installation of ‘keep out’ sign boards at locations where construction works
are ongoing can keep passers-by away from accidents.
5. Economic Evaluation
The results of the economic analysis in terms of the benefit cost (B/C) ratio and EIRR of
each candidate project under the base case and sensitivity analysis case (under the
condition of a 30% increase of the total project cost) are shown in Table 2.
Data Collection Survey on Transmission and Distribution Loss Reduction in Sri Lanka
4
Table 2 B/C ratio and EIRR of the Candidate Projects
Name of Project B/C ratio EIRR
base sensitivity base sensitivity
#1 Colombo City Transmission Development Project 1.59 1.22 18.63% 14.68%
#2 Construction of Kappalthurai 132/33 kV GS with related TL 1.62 1.25 16.59% 13.37%
#3 Construction of Grid Substations surrounding Colombo City 1.93 1.48 17.94% 14.95%
#4 Construction of Veyangoda - Kirindiwela - Padukka 220 kV TL 1.51 1.16 16.11% 13.59%
#5 Distribution Project for North Western Province of Region 1 1.13 0.87 12.92% 8.87%
#6 Distribution Project for Western Province North of Region 2 1.42 1.09 17.19% 12.37%
#7 Distribution Project for Western Province South-2 of Region 3 1.48 1.14 18.09% 13.09%
#8 Distribution Project for Western Province South-1 of Region 4 0.93 0.71 9.85% 6.28%
(Prepared by the Survey Team)
Table 2 shows that the B/C ratio ranges from 0.93 to 1.93 for the base case and 0.71 to 1.48
under the sensitivity analysis case. Thus, it can be said that the candidate projects will
bring benefits, with the exception of Project #8, since its B/C ratio is below 1.0 for both cases.
As for the EIRR, it ranges from 9.85% to 18.63% for the base case and 6.28% to 14.95% for
the sensitivity analysis case. With the exception of Project #5 and Project #8, under the
sensitivity analysis case, the results indicate that the candidate projects shall deliver
economic benefits. Thus, from an economic perspective, since most projects yield
satisfactory B/C ratio and EIRR under both cases, the candidate projects may proceed.
Bay of Bengal
❶
❸
❶
❹
❹❺
❺
❸
❷
① Colombo City Transmission Development② Construction of Kappalturai GS③ Construction of Kerawarapitiya GS④ Rehabilitation of Kiribathkumbra⑤ Construction of Veyangoda - Paduka 220 kV TL⑥ Construction of Chemmuni GS⑦ Construction of Kalutara GS ⑧ Construction of Battaramulla GS⑨ Reconstruction of Old Anuradhapura GS⑩ Construction of Nawalapitiya GS⑪ Construction of Wewalwatta GS⑫ Construction of Tissamaharama GS
Candidate Transmission Projects
⑤
❶ Package-1 Colombo City of Region 1❷ Package-2 NWP of Region 1❸ Package-3 WPN of Region 2❹ Package-4 WPS-2 of Region 3❺ Package-5 WPS-1 of Region 4
⑥
⑦
⑫
①
①
⑧
③
②
❸
⑤⑤⑤⑤
④④④
①
①
①
①①
①①
Candidate Distribution Projects
①①①①①
⑧⑧
⑨
⑩
⑪
⑩⑩
Ratmalana
Kelanitissa
E
F
Kotugoda
Pannipitiya
Kelaniya
Oruwala
BargeBiyagama
Sapugaskanda
Kerawalapitiya
I
A
Dehiwala
Sri Jpura
C
Aniyakanda
AturugiriyaKolonnawaB
Port& L
P
Battaramulla
Vavuniya
Mannar
Kilinochchi
Chunnakam
Anuradhapura
New Anuradhapura
New HabaranaPuttalam
Maho Polonnaruwa
Naula
Habarana
Trincomalee
Sumpur PS
Kapalthurai
Valaichchenai
Bowatenna
Ukuwela
Victoria
Pallekele Ampara
Badulla
InginiyagalaRandenigala
Rantembe
Vavunativu
Monaragala
Mahiyangane
Nuwara Eliya
Kotmale
Wimalasurendra
Upper Kotmale
Samanalawewa
Embilipitiya
Balangoda
Hambantota
Matara
Deniyaya
Galle
Beliatta
Suriyawewa
Weligama
Matugama Kukule
Ratnapura
Ambalangoda
M
M
M
M
Umaoya
Ginganga
Kalutara
Panadura Horana
M
Kurunegala
Kiribatkumbura
Norochcinai PS
Madampe
ThulhiriyaBolawatta
Katunayake
Panala
Veyangoda
New Chilaw
Kosgama
Sithawaka
New Laxapana
PolpitiyaLaxapana
Canyon
KegalleKotugoda
Pannipitiya
Kerawalapitiya
Port
Padukka
Kirindewela
NewPolpitiya
Broadlands
M
Chemmuni
MN
K
Wewalwatta
Tissamaharama
Nawalapitiya
0 50 km
N
EW
S
Sri Lanka
Gulf of Mannar
Laccadive Sea Indian Ocean
Legend220kV Line : existing220kV Line : planned132kV Line : existing132kV Line : Underground Cable132kV Line : planned
220kV Grid Substations 132kV Grid Substations Hydro Power StationThermal Power Station
existing planned
(Source:The Map of Sri Lanka Transmission System in Year 2020 prepared by CEB)
Project Location MapProject Location Map
i
FINAL REPORT for
Data Collection Survey on
Electricity Supply System Efficiency in
Democratic Socialist Republic of Sri Lanka
CONTENTS Executive Summary
Project Location Map
Chapter 1 Introduction 1.1 Background and Objectives ..................................................................................................... 1 - 1
1.2 Scope of the Survey ................................................................................................................. 1 - 2
1.3 Survey Schedule ...................................................................................................................... 1 - 3
1.4 Survey Team ............................................................................................................................ 1 - 3
1.5 Concerned Personnel .............................................................................................................. 1 - 3
Chapter 2 Power Sector 2.1 Institutions ................................................................................................................................ 2 - 1
2.2 Power Sector Policies .............................................................................................................. 2 - 5
2.3 Current Situation and Issues .................................................................................................... 2 - 6
2.3.1 Transmission and Distribution Losses .......................................................................... 2 - 6
2.3.2 Transmission Network .................................................................................................. 2 - 6
2.3.3 Distribution Network ...................................................................................................... 2 - 11
2.4 Development Plans .................................................................................................................. 2 - 23
2.4.1 Long-Term Transmission Development Plan ................................................................ 2 - 23
2.4.2 Distribution Line Development Plans ............................................................................ 2 - 25
2.5 Other Donors’ Assistances ....................................................................................................... 2 - 26
Chapter 3 Transmission Line Projects 3.1 General .................................................................................................................................... 3 - 1
3.2 Proposed Transmission Projects ............................................................................................... 3 - 1
3.2.1 Colombo City Transmission Development (PJT-1) ......................................................... 3 - 1
3.2.2 Construction of Kappalthurai GS (PJT-2) ....................................................................... 3 - 6
3.2.3 Construction of Kerawalapitiya GS (PJT-3) .................................................................... 3 - 7
3.2.4 Reconstruction of Kiribathkumbura GS (PJT-4) .............................................................. 3 - 9
3.2.5 Construction of Veyangoda – Kirindiwela – Padukka TL (PJT-5) .................................... 3 - 10
3.2.6 Construction of Chemmuni GS (PJT-6) .......................................................................... 3 - 13
3.2.7 Construction of Kalutara GS (PJT-7) .............................................................................. 3 - 14
3.2.8 Construction of Battaramulla GS (PJT-8) ....................................................................... 3 - 16
3.2.9 Reconstruction of Old Anuradhapura GS (PJT-9) ........................................................... 3 - 17
3.2.10 Construction of Nawalapitiya GS (PJT-10) ..................................................................... 3 - 19
3.2.11 Construction of Wewalwatta GS (PJT-11)....................................................................... 3 - 21
3.2.12 Construction of Tissamaharama GS (PJT-12) ................................................................ 3 - 22
3.3 Selection of Candidate Projects for Japan’s Loan Aid ............................................................... 3 - 24
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Chapter 4 Distribution Line Projects 4.1 General ...................................................................................................................................... 4 - 1
4.2 Proposed Distribution Projects................................................................................................... 4 - 3
4.2.1 New LV Schemes ........................................................................................................... 4 - 3
4.2.2 Single-phase to Three-phase Conversion .................................................................... 4 - 6
4.2.3 Provision of Automatic Meters Reading (AMR) .............................................................. 4 - 7
4.2.4 Provision of New PSs and Reinforcement of Distribution Lines ..................................... 4 - 7
4.2.5 Provision of DAS ............................................................................................................ 4 - 9
4.2.6 Provision of Specialized Vehicles ................................................................................... 4 - 10
4.2.7 Colombo City 11 kV Development Project ...................................................................... 4 - 10
4.3 Packaged Distribution Projects .................................................................................................. 4 - 13
Chapter 5 Power Flow and Loss Reduction Calculations 5.1 General .................................................................................................................................... 5 - 1
5.1.1 Power Flow Calculations for Transmission Projects ....................................................... 5 - 1
5.1.2 Loss Reduction Calculations for Substation Projects ..................................................... 5 - 2
5.2 Colombo City Transmission Development (PJT-1) .................................................................... 5 - 4
5.2.1 Study on the Project Scope ............................................................................................ 5 - 4
5.2.2 Calculations for 2015 Network (Phase-1) ....................................................................... 5 - 7
5.2.3 Calculations for 2020 Network (Phase-2) ....................................................................... 5 - 8
5.2.4 Loss Reduction Calculations .......................................................................................... 5 - 9
5.3 Construction of Kappalthurai GS (PJT-2) ................................................................................... 5 - 10
5.4 Construction of Kerawalapitiya GS (PJT-3) ............................................................................... 5 - 12
5.5 Veyangoda – Kirindiwela – Padukka 220 kV TL (PJT-5) ............................................................ 5 - 14
5.5.1 Power Flow Calculations for 2015 Network .................................................................... 5 - 14
5.5.2 Power Flow Calculations for 2020 Network .................................................................... 5 - 14
5.5.3 Transmission Loss Reduction Calculations .................................................................... 5 - 15
5.5.4 Substation Loss Reduction Calculations ........................................................................ 5 - 15
5.6 Construction of Kalutara GS (PJT-7) ......................................................................................... 5 - 18
5.7 Construction of Battaramulla GS (PJT-8) ................................................................................... 5 - 20
5.8 Applicability of Japanese Technologies ..................................................................................... 5 - 21
Chapter 6 Study for Distribution Line Projects 6.1 Candidate Projects .................................................................................................................... 6 - 1
6.1.1 Study for New LV Schemes ............................................................................................ 6 - 1
6.1.2 Study for Single-phase to Three-phase Conversion ....................................................... 6 - 2
6.1.3 Study for Energy Meters and Remote Data Transmission .............................................. 6 - 3
6.1.4 Study for New PSs and Reinforcement of Distribution Lines .......................................... 6 - 4
6.1.5 Study for DAS ................................................................................................................. 6 - 5
6.2 Candidate Packaged Distribution Projects ................................................................................. 6 - 10
6.3 Applicability of Japanese Technologies ..................................................................................... 6 - 13
Chapter 7 Implementation Plans for Transmission Projects 7.1 Implementation Agency ............................................................................................................. 7 - 1
7.2 Common Subjects for Project Implementation ........................................................................... 7 - 2
7.3 Colombo City Transmission Development (PJT-1) .................................................................... 7 - 3
7.4 Construction of Kappalthurai GS (PJT-2) ................................................................................... 7 - 9
7.5 Construction of Kerawalapitiya GS (PJT-3) ............................................................................... 7 - 11
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7.6 Construction of Veyangoda – Kirindiwela – Padukka 220 kV TL (PJT-5) ................................... 7 - 12
7.7 Construction of Kalutara GS (PJT-7) ......................................................................................... 7 - 16
7.8 Construction of Battaramulla GS (PJT-8) ................................................................................... 7 - 17
Chapter 8 Implementation Plans for Distribution Projects 8.1 Implementation Agency ............................................................................................................. 8 - 1
8.2 Implementation Plans ................................................................................................................ 8 - 2
8.2.1 Implementation Schedule ............................................................................................... 8 - 2
8.2.2 Supply Source of Equipment .......................................................................................... 8 - 5
8.2.3 Subjects to be Considered during Construction Stage ................................................... 8 - 6
8.3 Revised Project Costs ............................................................................................................... 8 - 7
8.3.1 Individual Costs .............................................................................................................. 8 - 7
8.3.2 Cost of Packaged Projects ............................................................................................. 8 - 9
8.4 Evaluation of Packaged Projects ............................................................................................... 8 - 12
Chapter 9 Environmental and Social Considerations 9.1 General .................................................................................................................................... 9 - 1
9.2 Policy and Legal Framework in Sri Lanka ................................................................................ 9 - 2
9.2.1 Prescribed Electricity Sector Projects requiring Environmental Assessment ................ 9 - 2
9.2.2 Laws, Regulations and Standards .................................................................................. 9 - 2
9.2.3 Major Issues on Environmental and Social Considerations .......................................... 9 - 3
9.3 EIA Process in Sri Lanka and Gaps between JICA Guidelines ................................................ 9 - 6
9.3.1 EIA Process and Procedure .......................................................................................... 9 - 6
9.3.2 Comparison of JICA Guidelines with Sri Lankan Laws and Regulations ...................... 9 - 9
9.4 Environmental Review on Candidate Projects ......................................................................... 9 - 10
9.4.1 Colombo City Transmission Development Project (PJT-1 and DL Package 1) ............... 9 - 11
9.4.2 Construction of Kappalturai 132/33 kV GS (PJT-2) ........................................................ 9 - 21
9.4.3 Construction of Grid Substations surrounding Colombo City (PJT-3, 7 and 8) ............... 9 - 25
9.4.4 Construction of Veyangoda – Kirindiwela-Padukka 220 kV TL (PJT-5) .......................... 9 - 30
9.4.5 Distribution Development for North Western Province of Region 1 (Package 2) ............ 9 - 38
9.4.6 Distribution Development for Western Province North of Region 2 (Package 3) ............ 9 - 43
9.4.7 Distribution Development for Western Province South-2 of Region 3 (Package 4) ........ 9 - 48
9.4.8 Distribution Development for Western Province South-1 of Region 4 (Package 5) ........ 9 - 54
Chapter 10 Economic Analysis 10.1 Background and Approach ........................................................................................................ 10 - 1
10.2 Economic Costs and Benefits .................................................................................................... 10 - 1
10.3 Cost Benefit Analysis and Economic Internal Rate of Return .................................................... 10 - 3
10.4 Sensitivity Analysis .................................................................................................................... 10 - 4
10.5 Conclusion ................................................................................................................................. 10 - 5
Chapter 11 Conclusions and Recommendations 11.1 Conclusions ............................................................................................................................... 11 - 1
11.2 Recommendations ..................................................................................................................... 11 - 3
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ATTACHMENTS
Attachment-1 Related Personnel Attachment-2 Photographs Attachment-3 Drawings Attachment-4-1 Environmental Checklist Attachment-4-2 Environmental Monitoring Check Sheet Attachment-5-1 Economic Cost Estimations Attachment-5-2 EIRR Calculations
ANNEX
Candidate Projects in Long-term Development Plan
TABLES
Table 1.4-1 Composition of the Survey Team ................................................................................ 1 - 3 Table 2.1-1 Power Sector Performance ......................................................................................... 2 - 4 Table 2.3-1 Existing Transmission Lines and Grid Substations ...................................................... 2 - 7 Table 2.3-2 Colombo City Demand Forecast (unit: MVA) .............................................................. 2 - 8 Table 2.3-3 Transmission Line Sections with Old Design Concept ................................................ 2 - 9 Table 2.3-4 Peak Power Demand in Distribution System (unit: MW) ............................................. 2 - 12 Table 2.3-5 Electrification of CEB Distribution ............................................................................... 2 - 13 Table 2.3-6 Network Components in Distribution System .............................................................. 2 - 14 Table 2.3-7 SCADA System applied in CEB Distribution System .................................................. 2 - 16 Table 2.3-8 MV Distribution Losses ............................................................................................... 2 - 16 Table 2.4-1 Transmission Expansion Proposals ............................................................................ 2 - 24 Table 2.4-2 MV Development Projects ........................................................................................... 2 - 26 Table 2.5-1 ADB Strategy for the Energy Sector ............................................................................ 2 - 27 Table 2.5-2 Assistance for Transmission and Distribution Projects ................................................ 2 - 31 Table 2.5-3 Assistance for Generating Plants and Others ............................................................. 2 - 31 Table 3.1-1 CEB’s Priority Projects ................................................................................................ 3 - 1 Table 3.2-1 Cost of Colombo City Transmission Development Project .......................................... 3 - 5 Table 3.2-2 Load Conditions for Loss Reduction Calculation ......................................................... 3 - 5 Table 3.2-3 Energy Loss Savings by PJT-1 ................................................................................... 3 - 6 Table 3.2-4 Cost of Kappalthurai 132/33 kV GS Construction Project ........................................... 3 - 7 Table 3.2-5 Cost of Kerawalapitiya 220/33 kV GS Construction Project ........................................ 3 - 8 Table 3.2-6 Cost of Kiribathkumbura GS Reconstruction Project................................................... 3 - 10 Table 3.2-7 Cost of Veyangoda – Kirindiwela – Padukka 220 kV TL Project ................................. 3 - 12 Table 3.2-8 Loss Reduction Calculation of PJT-5 by CEB ............................................................. 3 - 12 Table 3.2-9 Cost of Chemmuni GS Construction Project ............................................................... 3 - 14 Table 3.2-10 Cost of Kalutara 132/33 kV GS Construction Project .................................................. 3 - 16 Table 3.2-11 Cost of Battaramulla 132/33 kV GS Construction Project ........................................... 3 - 17 Table 3.2-12 Cost of Old Anuradhapura 132/33 kV GS Reconstruction Project .............................. 3 - 19 Table 3.2-13 Cost of Nawalapitiya 132/33 kV GS Construction Project ........................................... 3 - 20 Table 3.2-14 Cost of Wewalwatta 132/33 kV GS Construction Project ............................................ 3 - 22
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Table 3.2-15 Cost of Tissamaharama 132/33 kV GS Construction Project ...................................... 3 - 23 Table 3.3-1 Result of Evaluation .................................................................................................... 3 - 26 Table 4.2-1 Proposed Additional LV Schemes ............................................................................... 4 - 5 Table 4.2-2 Proposed Single-phase to Three-phase Conversion ................................................... 4 - 6 Table 4.2-3 Proposed AMR ............................................................................................................ 4 - 7 Table 4.2-4 Proposed MV Projects ................................................................................................ 4 - 8 Table 4.2-5 Proposed DAS ............................................................................................................ 4 - 10 Table 4.2-6 Proposed Specialized Vehicles ................................................................................... 4 - 10 Table 4.2-7 Colombo City 11 kV Development Project .................................................................. 4 - 11 Table 4.3-1 Packaged Distribution Projects ................................................................................... 4 - 13 Table 5.2-1 Results of Power Flow Calculations for Three Cases ................................................. 5 - 5 Table 5.2-2 Demand Forecast for Phase-1 Calculations ................................................................ 5 - 7 Table 5.2-3 Results of Calculations for Phase-1 ............................................................................ 5 - 8 Table 5.2-4 Demand Forecast for Phase-2 Calculations ................................................................ 5 - 9 Table 5.2-5 Results of Calculations for Phase-2 ............................................................................ 5 - 9 Table 5.2-6 Loss Reduction Calculations for PJT-1 ....................................................................... 5 - 10 Table 5.3-1 Demand Forecast for Trincomalee GS ........................................................................ 5 - 10 Table 5.3-2 Demand Forecast for Trincomalee and Kappalthurai GSs .......................................... 5 - 10 Table 5.3-3 MV Line Loss Reduction by PJT-2 .............................................................................. 5 - 11 Table 5.3-4 Transformer Loss Reduction by PJT-2 ........................................................................ 5 - 11 Table 5.4-1 Demand Forecast for Kotugoda GS ............................................................................ 5 - 12 Table 5.4-2 Demand Forecast for Kotugoda and Kerawalapitiya GSs ........................................... 5 - 12 Table 5.4-3 MV Line Loss Reduction by PJT-3 .............................................................................. 5 - 12 Table 5.4-4 Transformer Loss Reduction by PJT-3 ........................................................................ 5 - 13 Table 5.4-5 Loss Reduction by Static Capacitors ........................................................................... 5 - 13 Table 5.5-1 Results of Calculations for PJT-5 in 2015 ................................................................... 5 - 14 Table 5.5-2 Results of Calculations for PJT-5 in 2020 ................................................................... 5 - 15 Table 5.5-3 Loss Reduction Calculations for PJT-5 ....................................................................... 5 - 15 Table 5.5-4 Demand Forecast for Biyagama and Kosgama GSs .................................................. 5 - 15 Table 5.5-5 Demand Forecast for Biyagama, Kosgama, and Kirindiwela GSs .............................. 5 - 16 Table 5.5-6 MV Line Loss Reduction by PJT-5 .............................................................................. 5 - 16 Table 5.5-7 Transformer Loss Reduction by PJT-5 ........................................................................ 5 - 17 Table 5.5-8 Loss Reduction by Static Capacitors ........................................................................... 5 - 17 Table 5.6-1 Demand Forecast for Panadura and Matugama GSs ................................................. 5 - 18 Table 5.6-2 Demand Forecast for Panadura, Matugama, and Kalutara GSs ................................. 5 - 18 Table 5.6-3 MV Line Loss Reduction by PJT-7 .............................................................................. 5 - 19 Table 5.6-4 Transformer Loss Reduction by PJT-7 ........................................................................ 5 - 19 Table 5.7-1 Demand Forecast for Sri Jayawardhanepura GS ....................................................... 5 - 20 Table 5.7-2 Demand Forecast for Sri Jayawardhanepura and Battaramulla GSs .......................... 5 - 20 Table 5.7-3 MV Line Loss Reduction by PJT-8 .............................................................................. 5 - 20 Table 5.7-4 Transformer Loss Reduction by PJT-8 ........................................................................ 5 - 21 Table 5.8-1 Specification of Conductors ......................................................................................... 5 - 23 Table 5.8-2 Result of Case Study .................................................................................................. 5 - 24 Table 6.1-1 Specification of Existing DTs ....................................................................................... 6 - 1 Table 6.1-2 Loss Reduction by Replacement of Small DT (per one unit) ....................................... 6 - 2 Table 6.1-3 Loss Reduction by LV Scheme ................................................................................... 6 - 2 Table 6.1-4 Loss Reduction by Three-phase Conversion .............................................................. 6 - 3
vi
Table 6.1-5 Loss Reduction by AMR .............................................................................................. 6 - 4 Table 6.1-6 Loss Reduction by AMR in Each Province .................................................................. 6 - 4 Table 6.1-7 Loss Reduction by MV Development Plans ................................................................ 6 - 5 Table 6.1-8 Loss Reduction by DAS .............................................................................................. 6 - 7 Table 6.1-9 Loss Reduction by DAS in Each Province .................................................................. 6 - 7 Table 6.2-1 Loss Reduction Values of Package 1 .......................................................................... 6 - 10 Table 6.2-2 Loss Reduction Values of Package 2 .......................................................................... 6 - 11 Table 6.2-3 Loss Reduction Values of Package 3 .......................................................................... 6 - 12 Table 6.2-4 Loss Reduction Values of Package 4 .......................................................................... 6 - 12 Table 6.2-5 Loss Reduction Values of Package 5 .......................................................................... 6 - 13 Table 6.3-1 Loss Reduction and Repaid Years of Each DT ........................................................... 6 - 14 Table 6.3-1 Safety Mechanisms of Japanese Specialized Vehicles ............................................... 6 - 15 Table 7.3-1 Implementation Schedule: PJT-1 ................................................................................ 7 - 8 Table 7.3-2 Revised Project Costs: PJT-1 ..................................................................................... 7 - 9 Table 7.4-1 Implementation Schedule: PJT-2 ................................................................................ 7 - 10 Table 7.4-2 Revised Project Costs: PJT-2 ..................................................................................... 7 - 10 Table 7.5-1 Implementation Schedule: PJT-3 ................................................................................ 7 - 11 Table 7.5-2 Revised Project Costs: PJT-3 ..................................................................................... 7 - 12 Table 7.6-1 Implementation Schedule: PJT-5 ................................................................................ 7 - 15 Table 7.6-2 Revised Project Costs: PJT-5 ..................................................................................... 7 - 15 Table 7.7-1 Implementation Schedule: PJT-7 ................................................................................ 7 - 17 Table 7.7-2 Revised Project Costs: PJT-7 ..................................................................................... 7 - 17 Table 7.8-1 Implementation Schedule: PJT-8 ................................................................................ 7 - 18 Table 7.8-2 Revised Project Costs: PJT-8 ..................................................................................... 7 - 19 Table 8.1-1 CEB Distribution Regions ............................................................................................ 8 - 2 Table 8.2-1 Implementation Schedule: Colombo City 11 kV Development (Package 1) ................ 8 - 3 Table 8.2-2 Implementation Schedule: NWP of Region 1 (Package 2) .......................................... 8 - 3 Table 8.2-3 Implementation Schedule: WPN of Region 2 (Package 3) .......................................... 8 - 4 Table 8.2-4 Implementation Schedule: WPS-2 of Region 3 (Package 4) ....................................... 8 - 4 Table 8.2-5 Implementation Schedule: WPS-1 of Region 4 (Package 5) ....................................... 8 - 5 Table 8.2-6 Suppliers of Distribution Equipment ............................................................................ 8 - 6 Table 8.3-1 Price Breakdown of Installation Work of Small DT ...................................................... 8 - 7 Table 8.3-2 Cost of Additional LV Schemes ................................................................................... 8 - 7 Table 8.3-3 Cost of Three-phase Conversion ................................................................................ 8 - 8 Table 8.3-4 Cost of Energy Meters and Installation ....................................................................... 8 - 8 Table 8.3-5 Cost of DAS ................................................................................................................ 8 - 9 Table 8.3-6 Cost of Fiber Optic Cable Communication System ..................................................... 8 - 9 Table 8.3-7 Cost of Colombo City 11 kV Development Project ...................................................... 8 - 10 Table 8.3-8 Cost of Distribution Reinforce Projects in NWP of Region 1 ....................................... 8 - 10 Table 8.3-9 Cost of Distribution Reinforce Projects in WPN of Region 2 ....................................... 8 - 11 Table 8.3-10 Cost of Distribution Reinforce Projects in WPS-2 of Region 3 .................................... 8 - 11 Table 8.3-11 Cost of Distribution Reinforce Projects in WPS-1 of Region 4 .................................... 8 - 12 Table 8.4-1 Priority of Candidate Projects ...................................................................................... 8 - 12 Table 9.2-1 Laws Pertaining and Relevant to the Environmental and Social Consideration .......... 9 - 2 Table 9.2-2 Entitled Compensation other than Land Acquisition .................................................... 9 - 5 Table 9.3-1 Comparison between JICA Guidelines and Sri Lankan Laws and Regulations ........... 9 - 10 Table 9.4-1 List of Candidate Projects ........................................................................................... 9 - 10
vii
Table 9.4-2 Primary Scoping: PJT-1 .............................................................................................. 9 - 11 Table 9.4-3 Terms of Reference: PJT-1 ......................................................................................... 9 - 14 Table 9.4-4 Land Availability for New GSs ..................................................................................... 9 - 16 Table 9.4-5 Survey Results and Proposed Mitigation Measures: PJT-1 ........................................ 9 - 17 Table 9.4-6 Environmental Monitoring Plan: PJT-1 ........................................................................ 9 - 20 Table 9.4-7 Primary Scoping: PJT-2 .............................................................................................. 9 - 21 Table 9.4-8 Survey Results and Proposed Mitigation Measures: PJT-2 ........................................ 9 - 23 Table 9.4-9 Environmental Monitoring Plan: PJT-2 ........................................................................ 9 - 25 Table 9.4-10 Primary Scoping: PJT-3, -7 and -8 .............................................................................. 9 - 25 Table 9.4-11 Survey Results and Proposed Mitigation Measures: PJT-3, -7, and -8 ....................... 9 - 28 Table 9.4-12 Environmental Monitoring Plan: PJT-3, -7 and -8 ........................................................ 9 - 30 Table 9.4-13 Primary Scoping: PJT-5 .............................................................................................. 9 - 30 Table 9.4-14 Survey Results and Proposed Mitigation Measures: PJT-5 ........................................ 9 - 34 Table 9.4-15 Environmental Monitoring Plan: PJT-5 ........................................................................ 9 - 37 Table 9.4-16 Primary Scoping: DL Package 2 ................................................................................. 9 - 38 Table 9.4-17 Survey Results and Proposed Mitigation Measures: DL Package 2 ........................... 9 - 40 Table 9.4-18 Environmental Monitoring Plan: DL Package 2 ........................................................... 9 - 42 Table 9.4-19 Primary Scoping: DL Package 3 ................................................................................. 9 - 43 Table 9.4-20 Survey Results and Proposed Mitigation Measures: DL Package 3 ........................... 9 - 45 Table 9.4-21 Environmental Monitoring Plan: DL Package 3 ........................................................... 9 - 48 Table 9.4-22 Primary Scoping: DL Package 4 ................................................................................. 9 - 48 Table 9.4-23 Survey Results and Proposed Mitigation Measures: DL Package 4 ........................... 9 - 51 Table 9.4-24 Environmental Monitoring Plan: DL Package 4 ........................................................... 9 - 53 Table 9.4-25 Primary Scoping: DL Package 5 ................................................................................. 9 - 54 Table 9.4-26 Survey Results and Proposed Mitigation Measures: DL Package 5 ........................... 9 - 56 Table 9.4-27 Environmental Monitoring Plan: DL Package 5 ........................................................... 9 - 58 Table 10.2-1 Economic Costs of the Candidate Projects ................................................................. 10 - 2 Table 10.3-1 B/C Ratio and EIRR .................................................................................................... 10 - 4 Table 10.4-1 Sensitivity Analysis ...................................................................................................... 10 - 5 Table 11.1-1 Summary of Candidate Projects.................................................................................. 11 - 1 Table 11.1-2 B/C Ratio and EIRR of the Candidate Projects ........................................................... 11 - 3 Table 11.2-1 Recommendations to Prevent Overloading ................................................................. 11 - 5 Table 11.2-2 Recommendations to Prevent Voltage Drop ............................................................... 11 - 6
FIGURES
Figure 2.3-1 System Energy Losses ............................................................................................... 2 - 6 Figure 2.3-2 Existing Transmission Network as of 2011 .................................................................. 2 - 7 Figure 2.3-3 Communication Method of Micro SCADA ................................................................... 2 - 15 Figure 2.5-1 Chinese Assistance to Sri Lanka 2011 ........................................................................ 2 - 29 Figure 3.2-1 Outline of Colombo City Transmission Development .................................................. 3 - 2 Figure 3.2-2 Location of Colombo City Transmission Development. ............................................... 3 - 3 Figure 3.2-3 Transmission Network around Kappalthurai GS ......................................................... 3 - 6 Figure 3.2-4 Planned Transmission Network around Kirindiwela GS .............................................. 3 - 10 Figure 3.2-5 Transmission Network around Chemmuni GS ............................................................ 3 - 13 Figure 3.2-6 Transmission Network around Kalutara GS ................................................................ 3 - 15
viii
Figure 3.2-7 Transmission Network around Battaramulla GS ......................................................... 3 - 16 Figure 3.2-8 Transmission Network around Old Anuradhapura GS ................................................ 3 - 18 Figure 3.2-9 Transmission Network around Nawalapitiya GS ......................................................... 3 - 20 Figure 3.2-10 Transmission Network around Wewalwatta GS .......................................................... 3 - 21 Figure 3.2-11 Transmission Network around Tissamaharama GS .................................................... 3 - 23 Figure 4.2-1 Loss Reduction by Small Transformers ....................................................................... 4 - 4 Figure 4.2-2 Typical Load Curves of Rural Areas and Region 3 ...................................................... 4 - 5 Figure 4.2-3 Loss Reduction by Additional LV Schemes ................................................................. 4 - 5 Figure 4.2-4 Three-phase Conversion ............................................................................................. 4 - 6 Figure 4.2-5 11 kV Cable Routes in Colombo City .......................................................................... 4 - 12 Figure 5.1-2 Calculation Concept .................................................................................................... 5 - 2 Figure 5.2-1 Calculation Cases ....................................................................................................... 5 - 4 Figure 5.2-2 (1) Power Flow Calculation: Option-1 (Alternative-1) in 2020 Figure 5.2-2 (2) Power Flow Calculation: Option-1 (Alternative-2) in 2020 Figure 5.2-2 (3) Power Flow Calculation: Option-2 in 2020 Figure 5.2-3 (1) Power Flow Calculation: Option-1 in 2032 Figure 5.2-3 (2) Power Flow Calculation: Option-2 in 2032 Figure 5.2-4 Colombo City Transmission Development Project (Full-scale) .................................... 5 - 6 Figure 5.2-5 (1) Power Flow Calculation: With PJT-1 (Phase-1) Figure 5.2-5 (2) Power Flow Calculation: Without PJT-1 (Phase-1) Figure 5.2-6 (1) Power Flow Calculation: With PJT-1 (Phase-2) Figure 5.2-6 (2) Power Flow Calculation: Without PJT-1 (Phase-2) Figure 5.5-1 (1) Power Flow Calculation: With PJT-5 in 2015 Figure 5.5-1 (2) Power Flow Calculation: Without PJT-5 in 2015 Figure 5.5-2 (1) Power Flow Calculation: With PJT-5 in 2020 Figure 5.5-2 (2) Power Flow Calculation: Without PJT-5 in 2020 Figure 6.1-1 Loss Reduction after Replacing to Small DT ............................................................... 6 - 1 Figure 6.1-2 Basic Configuration of DAS ......................................................................................... 6 - 6 Figure 6.1-3 Back Bone Communication ......................................................................................... 6 - 8 Figure 6.1-4 Last One Mile Communication .................................................................................... 6 - 9 Figure 6.2-1 11 kV Network without the Project ............................................................................... 6 - 11 Figure 7.1-1 PIU Organizational Structure ....................................................................................... 7 - 1 Figure 7.1-2 Transmission Operation and Maintenance Branch ..................................................... 7 - 2 Figure 7.3-1 Location of Colombo City Transmission Development ................................................ 7 - 4 Figure 7.4-1 Kappalthurai GS Location ........................................................................................... 7 - 9 Figure 7.6-1 Veyangoda – Kirindiwela – Padukka 220 kV TL Route ............................................... 7 - 12 Figure 8.1-1 Distribution Projects Organizational Structure ............................................................. 8 - 1 Figure 8.1-2 CEB Maintenance Structure ........................................................................................ 8 - 2 Figure 9.3-1 EIA Implementation Process ....................................................................................... 9 - 9 Figure 11.2-1 Improvement of Winding Connection by C-Clamp ...................................................... 11 - 7
ix
Abbreviations
ACSR : Aluminum Conductor Steel Reinforced ADB : Asian Development Bank AEA : Atomic Energy Authority AFD : Agence Française de Développement (French Development Agency) AMI : Advance Meter Infrastructure AMR : Automatic Meter Reading BBC : Back Bone Communication BSC : Breaker Switched Capacitors B/C : Benefit Cost (ratio) CAGR : Compounded Annual Growth Rate CCCC : Colombo City Control Center CCD : Coast Conservation Department CCEDD : Colombo City Electricity Distribution Development CEA : Central Environmental Authority CEB : Ceylon Electricity Board CIF : Cost Insurance Freight CPP : Coal Power Plant DAS : Distribution Automation System DCC : Domestic Control Center DER : Department of External Resources DGM : Deputy General Manager DL : Distribution Line DT : Distribution Transformer EDBI : Export Development Bank of Iran EIA : Environmental Impact Assessment EIRR : Economic Internal Rate of Return EU : European Union EUA : European Union Allowance EXIM : Export and Import Bank of China FC : Foreign Currency FOB : Free on Board GEF : Global Environment Facility GIS : Gas Insulated Switchgear GIT : Gas Insulated Transformer GoSL : Government of Sri Lanka GPRS : General Packet Radio Service GS : Grid Substation GSM : Global System for Mobile Communications GT Gas Turbine HMI : Human Machine Interface HPP : Hydropower Plant IDA : International Development Association IEE : Initial Environmental Examination IPP : Independent Power Producer IUCN : International Union for the Conservation of Nature and Natural
x
JBIC : Japan Bank for International Cooperation JICA : Japan International Cooperation Agency JPY : Japanese Yen KfW : Kreditanstalt für Wiederaufbau (Reconstruction Credit Institute) LAA : Land Acquisition Act LAN : Local Area Network LC : Local Currency LCC : Lanka Coal Company (Pvt) Ltd LBS : Load Break Switch LECO : Lanka Electricity Company Ltd. LKR : Sri Lanka Rupee LOMC : Last One Mile Communication LTL : Lanka Transformer (Pvt) Ltd LTTDP : Long-Term Transmission Development Plan LRMC : Long Run Marginal Cost LV : Low Voltage (400 V in Sri Lanka) MOPE : Ministry of Power and Energy MV : Medium Voltage (33 kV and 11 kV in Sri Lanka) NEA : National Environmental Act NIRP : National Involuntary Resettlement Policy NPV : Net Present Value OF : Oil Filled O&M : Operation and Maintenance ODA : Official Development Assistance PAA : Project Approving Agency PAP : Project Affected Persons PIA : Project Implementing Agency PIU : Project Implementation Unit PMU : Project Management Unit PL : Polipto Lanka (Pvt) Ltd PP : Project Proponent PS : Primary Substation PQ : Pre Qualification PSS/E : Power System Simulator for Engineering PUCSL : Public Utilities Commission of Sri Lanka RTU : Remote Terminal Unit SCADA : System Control and Data Acquisition SEA : Sustainable Energy Authority SCF : Standard Conversion Factor SLPA : Sri Lanka Port Authority SPM : Suspended Particular Matter SS : Suspended Solid SVR : Step Voltage Regulator SwS : Switching Station TA : Technical Assistance TL : Transmission Line TOR : Terms of Reference TOQ : Total Quality Management
xi
UDA : Urban Development Authority UGC : Underground Cable UNFCCC : United Nations Framework Convention on Climate Change UNDP : United Nations Development Program US$ : United States Dollar WAN : Wide Area Network WB : World Bank
Exchange Rate
1 US dollar = 78.2 Japanese Yen
1 US dollar = 132.1 Sri Lankan Rupee
1 Sri Lankan Rupee = 0.592 Japanese Yen
CHAPTER 1 INTRODUCTION
Chapter 1 Introduction
1 - 1
CHAPTER 1 INTRODUCTION
1.1 Background and Objectives
The Japan International Cooperation Agency (JICA) has been continuously supporting the
power sector of the Democratic Socialist Republic of Sri Lanka, for the efficiency of
transmission and distribution facilities that will result to the stabilization of electric power
supply, leading to the economic development of Sri Lanka. Especially, JICA has been
assisting in the transmission and distribution lines reinforcement projects around the suburbs
of Colombo City and in the rural areas since the end of the 1990s.
Following a 7% annual average economic growth rate of Sri Lanka, large-scale generating
plants are needed to meet the rapidly increasing electricity demand. In 2011, the recorded
electricity demand reached 2,163 MW and according to the 2020 forecast, around 4,051 MW
will be required. However, the development of transmission and distribution facilities has
not been expanded and resulted to 11.7% of transmission and distribution losses in 2011.
Such weaknesses of the network shall be improved through the reinforcement of
transmission capacity and efficient utilization of energy.
According to the “Mahinda Chintana (Mahinda Vision)”, the Government of Sri Lanka will
take the necessary steps to provide all households with continuous electricity supply by the
end of 2012. To achieve this, the government will focus on several strategies, such as
sustainable generation development, improved access to electricity supply services, efficient
utilization of electric energy, and improved electricity tariff system. Among these strategies,
efficient utilization of electric energy is recognized as the key strategy. Concretely, such
strategies are the utilization of renewable energy, reduction of transmission and distribution
losses, promotion of energy-saving equipment for electricity uses, etc. With regards to the
transmission and distribution losses, the Mahinda Chintana states that “in order to minimise
the transmission losses and also to introduce modern technologies, steps have already been
taken to modernise and start new construction of transmission networks and substations
covering all geographical areas of the country.” To achieve this, the Ceylon Electricity
Board (CEB) has prepared the “Long-term Transmission Development Plan 2011-2020”
which is a result of several studies, including power flow calculations based on the long-term
power demand forecast and generation development plan.
Under such circumstances, once again, JICA has decided to conduct a data collection
survey on electricity supply system efficiency in Sri Lanka (hereinafter referred to as ‘the
Survey’) this year. This is intended to collect and organize necessary information for
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
1 - 2
realizing improved efficiency in the electricity supply system which includes the reduction of
transmission and distribution losses, and for justifying the requirements for Japan’s Loan Aid
assistance for the loss reduction program, considering the application of Japan’s system
efficiency techniques. JICA has employed Japanese consulting firms, namely, Nippon Koei
Co., Ltd. (NK) in association with Tokyo Electric Power Services Co., Ltd. (TEPSCO) and
Sojitz Research Institute, Ltd. (SRI) (herein after referred to as ‘the Survey Team’) to conduct
the Survey.
The main objectives of the Survey are as follows:
1) To collect and organize the latest information and data on electricity supply system,
including transmission and distribution losses in Sri Lanka;
2) To confirm the system efficiency program prepared by CEB and shortlist CEB’s
requested projects, which will contribute to the efficiency of the electricity supply system,
to be applied for Japan’s Loan Aid; and
3) To prepare the project summary including conceptual design, approximate cost
estimate, and simplified economic evaluation of the projects requested.
1.2 Scope of the Survey
The scope of the Survey is as follows:
1) Confirm CEB’s policies and countermeasures to be taken for system efficiency;
2) Confirm the current situation of transmission and distribution network in Sri Lanka;
3) Confirm development assistance of the power sector by other international donors;
4) Prepare the shortlist of candidate projects for system efficiency to be applied for
Japan’s Loan Aid;
5) Conduct site visit surveys of candidate project sites;
6) Conduct power flow calculations to confirm the efficiency of the candidate projects;
7) Review environmental and social conditions of the candidate projects based on JICA’s
environmental guideline;
8) Consider the possibility of applying Japanese system efficiency technology to the
candidate projects;
9) Prepare project summaries including conceptual design, approximate cost estimates,
environmental and social considerations, simplified project evaluation, procurement and
implementation plan, operation and maintenance (O&M) plan, etc.;
10) Prepare the reports listed in Section 1.3; and
11) Carry out explanations to and discussions with JICA and Sri Lankan officials.
Chapter 1 Introduction
1 - 3
1.3 Survey Schedule
The entire survey period is about six months: scheduled from June 2012 to December 2012.
The first and second field surveys in Sri Lanka were conducted from July 4 to August 2, 2012,
and from September 11 to October 13, 2012, respectively. The third survey to explain the
draft final report was conducted from November 13 to November 21, 2012.
The reports to be submitted during the survey period are as follows:
1) Inception Report beginning of July 2012
2) Progress Report 1 end of July 2012
3) Progress Report 2 middle of October 2012
4) Draft Final Report middle of November 2012
5) Final Report beginning of December 2012 (this report)
1.4 Survey Team
The Survey Team is organized through the association of NK, TEPSCO, and SRI.
The team members who carried out the Survey with assistance from CEB’s counterpart
personnel are shown in Table 1.4-1.
Table 1.4-1 Composition of the Survey Team
Name Position Firm*
1. Junichi FUKUNAGA Leader / Power System Analyst NK
2. Fukiyoshi KOREZAWA Transmission Line Engineer NK
3. Kiyotaka KATO Distribution Line Engineer TEPSCO
4. Hitoshi EGAWA Substation Engineer NK
5. Junko FUJIWARA Environmental and Social Consideration Specialist TEPSCO
6. Michiko IWANAMI Economist SRI
(Prepared by the Survey Team)
Note: NK: Nippon Koei Co., Ltd.
TEPSCO: Tokyo Electric Power Service Co., Ltd.
SRI: Sojitz Research Institute, Ltd.
1.5 Concerned Personnel
During the survey period, the Survey Team met and had discussions with several concerned
personnel listed in Attachment-1.
CHAPTER 2 POWER SECTOR
Chapter 2 Power Sector
2 - 1
CHAPTER 2 POWER SECTOR
2.1 Institutions
(1) Ministry of Power and Energy (MOPE)
Formulating and implementing policies for the generation, transmission, distribution and
retailing of electrical energy is the responsibility of the Ministry of Power and Energy (MOPE).
The ministry's mandated roles and functions are as follows:
1) Formulation of policies, programmes and projects under the power and energy sector
and all matters that come under the purview of the institutes within the ministry;
2) Directing the implementation of such policies, programmes and projects;
3) Provision of all public services that come under the purview of the ministry in an
efficient and people-friendly manner;
4) Reforming all systems and procedures to ensure the conduct of business in an efficient
manner, employing modern management techniques and technology while eliminating
corruption;
5) Investigating, planning and development of electricity facilities throughout the island
including hydropower, thermal power, mini hydro, coal and wind power;
6) Extension of rural electrification;
7) Development of a sound, adequate and uniform electricity policy for the control,
regulation and utilization of normal power resources;
8) Promotion of energy efficiency; and
9) Development of indigenous renewable energy resources.
The Sri Lanka Electricity Act No. 20 of 2009 was enacted by the parliament with the sole
objective of implementing the national policy for the power sector. The policy has been
formulated with a view of enabling Sri Lanka to meet the expected increasing demand for
electricity. The act cites provisions to regulate the generation, transmission, distribution,
supply and use of electricity in Sri Lanka. In particular, the act addresses the following
concerns/issues:
1) Provision of 24 hours uninterrupted electricity for all at all times;
2) Adoption of a transparent tariff policy that is acceptable to the government, consumers
and utilities to ensure reasonable cost recovery;
3) Implementation of lower cost generating plants and the adoption of open competitive
transparent bidding processes for the procurement of electricity by utilities, the
establishment of a transparent power plant dispatch programme in 2009 and the
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
2 - 2
upgrading of management information;
4) Update of provisions that is compatible with the latest technology advances and to
protect the rights and safeguard the interests of consumers; and
5) Making the Ceylon Electricity Board more efficient and effective, while being made
accountable for its functions to the general public, consumers and the government.
The main entities under the purview of the MOPE are:
Ceylon Electricity Board (CEB);
Sustainable Energy Authority (SEA);
Atomic Energy Authority (AEA);
Lanka Electricity Company (Pvt) Limited. (LECO);
Lanka Transformer (Pvt) Ltd. (LTL);
Lanka Coal Company (Pvt) Ltd.(LCC); and
Polipto Lanka (Pvt) Ltd. (PL)
(2) Public Utilities Commission of Sri Lanka
The Public Utilities Commission of Sri Lanka (PUCSL) was established through Act No 35 of
2002 as a multi-sector regulator to manage certain physical infrastructure industries in the
country. Initially the PUCSL Act addressed regulations for electricity and water service
industries. Later in March 2006, the petroleum industry was added to the list of industries to
be regulated by the PUCSL.
With the enactment of the Sri Lanka Electricity Act No. 20 of 2009, PUCSL became the
economic, safety and technical regulator of the electricity industry. With a view of ensuring
adequate investment, greater availability, efficient supply, and improved quality of services in
the electricity industry, the PUCSL regulates the generation, transmission, distribution,
supply and use of electricity in Sri Lanka.
Being the regulator for the electricity industry and water services and downstream petroleum
industries, the PUCSL Act identifies broad functions listed out as follows;
1) Exercise, perform and discharge the powers, functions and duties assigned to the
PUCSL by the act;
2) Consult, to the extent where the PUCSL considers appropriately, any person or group
who or which may be affected, or likely to be affected by the decisions of the PUCSL;
3) Advice the government on all matters concerning any industry falling within the purview
of the PUCSL;
4) Collect, record, and disseminate, information concerning any public utilities industries;
5) Prepare within six months a regulatory manual containing a code of good practice
which governs the functions of the PUCSL and revise when necessary;
Chapter 2 Power Sector
2 - 3
6) Exercise licensing, regulatory and inspection functions within respect to all matters
provided by any industry act;
7) Enforce the provisions of licenses, contracts and other instruments issued under the
authority of any industry act;
8) Regulate tariffs and other charges levied by regulated entities when necessary;
9) Mediate disputes arising in any public utilities industry;
10) Set and enforce technical and other standards relating to the safety, quality, continuity
and reliability of the public utilities industries; and
11) Undertake such other incidental or ancillary activities for the effective discharge of any
of its functions.
(3) Electric Power Utilities
CEB and LECO are the only two electric power utilities in the power sector. CEB was
established in terms of the Act of Parliament No.17 of 1969 as a state-owned, vertically
integrated utility. CEB is responsible for power generation, transmission, and distribution.
It raised 89.2% of electricity sales in Sri Lanka and served 4.7 million customers in 2011.
LECO was formed in 1983 as a distribution company under the Sri Lankan Companies Act.
It purchases electric power from CEB and distributed 1,216 GWh of energy to approximately
490,000 consumers in 2011 in the western and coastal belt townships between Negombo
and Galle.
The power sector of Sri Lanka is struggling to meet its growing electricity demand.
Economically viable hydropower potentials have already been developed, however power
crises in the past drew attention to the importance of timely implementation of new
generating plants to meet the growing demand. The power crises have been caused by
vulnerability to rainfall. Moreover, limitations of hydropower plants during severe drought
fluctuations forced load shedding to limit the daily electricity demand. Since 1996, the
Government of Sri Lanka (GoSL) has allowed independent power producers (IPPs) to build,
own, and operate thermal power plants to encourage private sector participation in meeting
the power supply requirements. The share of electric energy from hydropower plants in the
power generation ratio declined from 99.7% in 1986 to 40.1% in 2011. At present, Sri
Lanka relies heavily on imported fuel for its electric energy requirements.
The total installed power generation capacity in 2011 amounted to 3,141 MW, which includes
the capacity of IPPs of 1,082 MW. Of the capacity feeding the main grid, 44.6% was
sourced from hydropower while the balance from thermal, except for 50 MW of new
renewable energy such as wind, solar, dendro, and biomass. The peak demand in 2011
was 2,163 MW. Of the total 10,023 GWh electricity sale of CEB in 2011, domestic
(households) consumers had the largest share at 33.7%, followed by the industrial sector
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
2 - 4
(31.2%), general and commercial consumers (19.2%), bulk supply by CEB to LECO (12.6%),
street lighting (1.1%), and religious sector (0.5%).
Table 2.1- 1 summarizes the major indices of power sector performance.
Table 2.1-1 Power Sector Performance
Items 2009 2010 2011
growth rate
(2010-11)
(%)
1. Total installed capacity 2,684 MW 2,818 MW 3,141 MW 11.5 1.1 Installed capacity: CEB 1,758 MW 1,758 MW 2,058 MW 17.1 Hydro 1,207 MW 1,207 MW 1,207 MW 0.0 Thermal-Oil 548 MW 548 MW 548 MW 0.0 Thermal-Coal - - 300 MW - Wind 3 MW 3 MW 3 MW 0.0 1.2 Installed capacity: IPP’s 926 MW 1,059 MW 1,082 MW 2.2 Hydro 171 MW 175 MW 194 MW 10.9 Thermal 742 MW 842 MW 842 MW 0.0 Renewable energy 13 MW 42 MW 47 MW 11.9 2. Gross generation 9,882 GWh 10,714 GWh 11,528 GWh 7.6 2.1 Gross generation: CEB 5,450 GWh 6,3865GWh 6,552 GWh 2.6 Hydro 3,356 GWh 4,988 GWh 4,018 GWh -19.6 Thermal-Oil 2,091 GWh 1,394 GWh 1,493 GWh 7.1 Thermal-Coal - - 1,038 GWh - Wind 3 GWh 3 GWh 3 GWh 0.0 2.2 Gross generation: IPPs 4,432 GWh 4,329 GWh 4,976 GWh 14.9 Hydro 525 GWh 646 GWh 604 GWh -6.5 Thermal 3,884 GWh 3,600 GWh 4,254 GWh 18.2 Renewable energy 23 GWh 83 GWh 118 GWh 42.2 3. Electricity sales 9,491 GWh 10,391 GWh 11,239 GWh 8.2 3.1 Electricity sales: CEB 8,441 GWh 9,268 GWh 10,023 GWh 8.1 Domestic and religious 2,927 GWh 3,186 GWh 3,430 GWh 7.7 Industrial 2,518 GWh 2,870 GWh 3,131 GWh 9.1 General purpose and hotel 1,768 GWh 1,903 GWh 2,086 GWh 9.6 Bulk sales to LECO 1,120 GWh 1,201 GWh 1,267 GWh 5.5 Street lighting 108 GWh 108 GWh 109 GWh 0.9 3.2 Electricity sales: LECO 1,050 GWh 1,124 GWh 1,216 GWh 8.2 Domestic and religious 486 GWh 510 GWh 547 GWh 7.3 Industrial 208 GWh 229 GWh 241 GWh 5.2 General purpose and hotel 331 GWh 364 GWh 405 GWh 11.3 Street lighting 25 GWh 21 GWh 23 GWh 9.5 4. Overall system Loss of CEB 14.59 % 13.50 % 13.00 % -0.50 TL & DL loss 13.90 % 12.97 % 11.72 % -1.25 5. No. of consumers: CEB+LECO (‘000) 4,749 4,958 5,208 5.0 Domestic and religious 4,207 4,392 4,610 5.0 Industrial 46 48 51 6.3 General purpose and hotel 496 518 542 5.7
(Source: Central Bank of Sri Lanka Annual Report - 2011 and CEB Statistical Digest 2011)
Chapter 2 Power Sector
2 - 5
2.2 Power Sector Policies
'Mahinda Chintana (Mahinda Vision)’ was formulated by the GoSL in 2006 to set out Sri
Lanka's development vision for the 10-year period 2006-2016. Based on an extensive
consultation process, the vision sets out a broad macroeconomic framework. It sets out 10-
year policy frameworks for various sectors of the economy, including broad vision, situational
analysis and strategy. It aims for an ambitious acceleration of growth through a scaling up
of investment and increasing productivity.
As for the power sector policy, Mahinda Chintana focuses on infrastructure development to
accelerate the country’s economic growth, narrow down regional disparities, and envision
sustainable development of energy resources. It also focuses on enabling electricity
access to the entire population, and reliable service delivery at a competitive price through
commercially viable institutions subjected to independent regulation. The framework is
based on the National Energy Policy and Strategies formulated by the MOPE.
The MOPE updated this development policy framework in 2010. This provides a
comprehensive sector development road map, including a long-term investment program
and policy and reform measures. In particular, the strategies updated in 2010 aim to:
1) Increase supply capacity of the system to 3,470 MW by 2012 and 6,367 MW by 2020
and reduce generation cost by adding an aggregate base load capacity of about 2,000
MW from three coal-fired plants;
2) Increase share in grid energy supply from nonconventional renewable energy sources
from 4.1% in 2007 to 8.5% by 2012, 10% by 2016, and 20% by 2020;
3) Increase the percentage of households connected to the grid from 88% in 2010 to
100% by 2012;
4) Reduce the total technical and commercial losses of the transmission and distribution
network from 14.6% in 2009 to 14.0% by 2012, 13% by 2016 and 12.0% by 2020; and
5) Achieve energy savings of 4.3% in 2012, 6.4% in 2016, and 8.7% in 2020 from a
potential consumption level through energy conservation.
The government’s main goals are to improve the quantity, quality, and cost of service delivery,
and to increase electricity connections in rural areas.
The National Energy Policy and Strategies also states that “power generation and network
losses will be brought down to the lowest possible levels and capacity will be improved
through necessary generation, transmission, and distribution investments and efficient
management of the supply systems”. To achieve this, CEB has been continuously exerting
utmost efforts in various ways for the reduction of transmission and distribution losses, which
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
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will be discussed in the following sections.
2.3 Current Situation and Issues
2.3.1 Transmission and Distribution Losses
Total system energy losses, including generation, transmission and distribution losses in
CEB’s network, are gradually being reduced over the past years as shown in Figure 2.3-1.
21.35 19.69 19.20 18.44
17.11 17.27 16.58 15.64 14.99 14.59 13.50 13.00
0.00
5.00
10.00
15.00
20.00
25.00
30.00
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
year
Losses (%)
(Source: CEB 2009 Annual Report and Statistical Digest 2011)
Figure 2.3-1 System Energy Losses
The system energy loss in 2011 was 13.00%, of which transmission and distribution loss was
11.72% and generation loss was 1.28%. In comparison to transmission and distribution
loss being 12.97% in 2010, a 1.25% reduction was achieved in 2011 as a result of CEB’s
reduction efforts. However, transmission and distribution losses, especially the latter, were
still at a high level and countermeasures for loss reduction are to be taken continuously.
2.3.2 Transmission Network
(1) Current Situation
The present transmission system in Sri Lanka consists of a nationwide network of 220 kV
and 132 kV transmission lines (TLs) which feed several 220/33 kV and 132/33 kV grid
substations (GSs). Table 2.3-1 shows the summary of the existing TLs and GSs. Figure
2.3-2 shows the existing transmission network of Sri Lanka.
Chapter 2 Power Sector
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Table 2.3-1 Existing Transmission Lines and Grid Substations
Length of Existing TLs Numbers and Capacities of Existing GSs Transmission Lines Length(km) Grid Substations Number Capacity(MVA) 1 220 kV overhead line 483 1 220/132/33 kV 5 2,100/500 2 132 kV overhead line 1,724 2 220/132 kV 2 405 3 132 kV underground cable 50 3 132/33 kV 44 2,874 4 132/11 kV 4 306
(Source: CEB Statistical Digest 2011)
Figure 2.3-2 Existing Transmission Network as of 2011
(Source: CEB Transmission Planning)
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As shown in Figure 2.3-2, there are three major 220 kV transmission corridors transmitting
bulk power generated from large-scale generating plants to major load centers as follows:
1) From hydropower plants in Mahaweli Complex in the Central Province to Biyagama GS
in the Western Province
2) From Kotmale HPP in the Central Province to New Anuradhapura GS in the North
Central Province
3) From Norochcholai Coal Thermal Power Plant in the North Western Province to
Kotugoda GS in the Western Province
The 132 kV transmission lines are constructed nationwide. Other medium- and small-scale
power plants and grid substations are connected through these lines. Most of the 220 kV
and 132 kV transmission lines are overhead lines, except for the 132 kV underground cable
lines in Colombo City with gas-insulated switchgear (GIS).
(2) Issues on the Transmission Network
As a result of the review and discussions about the system analysis conducted by the CEB
Transmission Planning, the Survey Team found the following issues on the existing
transmission network.
1) Power supply to Colombo City
The electricity demand of Colombo City is rapidly increasing much faster than expected.
This is due to emerging investments and developments such as hotels, commercial
complexes, and port expansions after the end of the civil war in May 2009. Table 2.3-
2 shows CEB’s demand forecast for Colombo City for the period from 2012 to 2032.
Table 2.3-2 Colombo City Demand Forecast (unit: MVA)
Grid Substations 2012 2015 2020 2032 Colombo-A 54.4 61.1 62.6 38.2 Colombo-B - 29.9 57.0 72.1 Colombo-C 22.9 28.7 33.1 69.8 Colombo-E 59.5 63.0 69.2 56.3 Colombo-F 52.6 45.7 60.4 19.5 Colombo-I 36.8 43.7 49.2 100.0
Colombo-K (new) - - 12.3 43.5 Colombo-L (new) - 32.0 100.0 29.0 Colombo-M (new) - 51.8 43.5 36.0 Colombo-N (new) - - 29.0 65.5 Colombo-P (new) - - 36.0 67.4
Kelanitissa 23.7 28.3 60.2 72.0 Kolonnawa 68.2 55.5 62.7 67.4
Total 318.1 439.7 675.2 736.6
(Source: CEB Transmission Planning)
The existing transmission network in Colombo City mainly consists of 132 kV
underground cables with several 132/11 kV GSs such as Colombo-A, Colombo-C,
Chapter 2 Power Sector
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Colombo-E, Colombo-F and Colombo-I, and 132/33 kV Kolonnawa and Kelanitissa
GSs. In addition to the above, CEB plans to construct new GSs (as shown in Table
2.3-2) and install additional main transformers in the existing GSs to meet the rapidly
increasing electricity demand with a new 132 kV underground cable network.
However, old and small-sized 132 kV oil filled (OF) cables of the following sections exist
in the Colombo City transmission network;
1) Kelanitissa – Colombo-F, OF 500 mm2, 4.9 km
2) Colombo-F – Colombo-E, OF 350 mm2, 2.7 km
3) Colombo-E – Kolonnawa, OF 500 mm2, 5.4 km
The above cables sometimes leak insulation
oil (as shown in the right photograph) which
may cause serious accidents. In addition,
small-sized cables produce transmission
losses. To avoid accidents and transmission
losses, old cables shall be replaced with more
reliable and large-sized cables.
2) Old design concept
There are many sections of 132 kV transmission lines, which were designed using old
design concepts in the existing transmission network as shown in Table 2.3-3.
Table 2.3-3 Transmission Line Sections with Old Design Concept
No. Section Conductor Length (km)
Circuit (cct)
Max. Operation Temp. (oC)
Completion Year
1 Kolonnawa – Pannipitiya Lynx 12.9 2 54 1971 2 Bolawatta – Madampe (T) Lynx 22.6 2 54 1963 3 Madampe (T) – Puttalam Lynx 61.4 2 54 1963 4 Kolonnawa – Athurugiriya – Thulhiriya (T) – Polpitiya Lynx 78.0 2 54 1959 5 Athurugiriya – Oruwala Lynx 3.4 2 54 1963 6 Thulhiriya (T) – Thulhiriya Lynx 23.9 2 54 1971 7 Kolonnawa – Kosgama (T) – Sithawaka (T) – Polpitiya Lynx 66.3 2 54 1971 8 Panipitiya – Ratmalana Lynx 6.9 2 54 1971 9 Polpitiya – Laxapana – Wimalasurendra Lynx 13.4 2 54 1963 10 Polpitiya – New Laxapana – Laxapana Lynx 8.9 2 54 1960 11 New Laxapana – Canyon Lynx 10.0 1 54 1983 12 Polpitiya – Kiribathkumbra – Ukuwela – Habarana Lynx 164.2 2 54 1971 13 Habarana – Anuradhapura Lynx 48.9 2 54 1971 14 Ukuwela – Bowatenna Lynx 30.0 1 54 1983 15 Kiribathkumbra – Kurunegala Lynx 34.6 2 54 1963 16 New Anuradhapura – Trincomalee Lynx 103.3 2 54 1978 17 New Laxapana – Balangoda Lynx 43.9 2 54 1963 18 Balangoda – Deniyaya – Galle Tiger 101.5 2 54 1964 19 Badulla – Inginiyagala Oriole 79.9 1 54 1963
(Source: CEB Transmission Planning)
These sections were designed for small conductors such as Aluminum Conductor Steel
Oil leak from OF cables at Colombo-E
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Reinforced (ACSR) Lynx (183.4 mm2), Oriole (170.5 mm2), and Tiger (131.1 mm2) with
54°C maximum operation temperature, even though CEB now applies ACSR Zebra
(428.9 mm2) as the standard conductor size for new transmission lines with 75°C
maximum operation temperature.
Some of the above sections, such as Item 4 “Kolonnawa – Athurugiriya – Thulhiriya (T)
– Polpitiya”, Item 7 “Kolonnawa – Kosgama (T) – Sithawaka (T) – Polpitiya”, and Item
12 “Polpitiya – Kiribathkumbra – Ukuwela – Habarana”, are important 132 kV
transmission lines, which carry bulk power flow. However, the limitation of the current
carrying capacity remains a serious obstacle for system operation due to the maximum
operation temperature rations on the power flow. In addition, small conductors
produce transmission losses.
3) System Reliability
The 220 kV Kotmale–Biyagama transmission line is one of the most important lines to
carry bulk power generated from hydropower stations in Mahaweli Complex in the
Central Province to major load centers in Colombo. However, since the Kotmale–
Biyagama line passes through a relatively frequent lightning area, lightning sometimes
strikes the line and causes severe faults such as nationwide blackouts.
To avoid such huge blackout and still have a reliable system, augmentation of the
transmission network, such as construction of diversion transmission lines, is needed.
4) Shortage of reactive power
Electricity demand in Colombo has been rapidly increasing since the end of the civil war.
Reactive power supply cannot meet the system requirements to keep the system
voltage within an appropriate level. To meet the reactive power demand in Colombo,
diesel generators in Sapgaskanda are operated only for the reactive power supply.
This is an emergency measure but a costly alternative. Reactive power compensation
equipment such as static capacitors shall be urgently installed in the existing grid
substations in and around Colombo. This countermeasure also contributes to
transmission loss reduction.
5) Voltage drop
CEB defines the permitted voltage deviation at 132 kV busbars as ±10% in the system
planning criteria. However, voltage drops exceeding the permissible range are
sometimes recorded at substations which are located in rural areas as well as at the
end of the transmission network such as Galle, Valachchenai, and Ampara GSs.
These drops are due to the long distance and small conductor transmission lines.
Voltage drops also increase transmission losses.
To improve such situation, countermeasures such as the construction of a new GS,
Chapter 2 Power Sector
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reconstruction and augmentation of transmission line, together with the installation of
static capacitors are to be taken.
2.3.3 Distribution Network
(1) General
Recently, remarkable overloading on the distribution facilities of CEB’s network is observed,
especially on the medium voltage (MV) lines from 132 kV GSs to 33 kV primary substations
(PS). This causes distribution losses.
The CEB’s Statistical Digest 2011 shows that the household electrification ratio to be 91.0%
in 2011. Although the electrification ratio in urban areas is generally high, it is very low in
rural areas, especially in the Northern Province. Since electricity demand density of
consumers is very thin in the rural area, distribution lines become very long, causing large
resistive losses on the distribution lines. More than 10% of the voltage drops have been
observed in rural areas. Some components of the distribution system are old which may
cause failures due to poor quality of equipment. In addition, it is necessary to establish an
underground cable system in urban area surrounding Colombo City because of the difficulty
to reinforce the overhead distribution lines.
The distribution system does not provide a sufficient energy metering facilities to measure
the coming and sending of electric power energy. At this moment, there is no energy
metering provided even at the distribution transformers. Thus, it is essential to provide
energy metering to accurately measure energy losses.
In 2012, Colombo City has completed the installation and commissioning of the System
Control and Data Acquisition (SCADA) System under the Colombo City Electricity
Distribution Development (CCEDD) Project funded by JICA. It can control the switchgear
up to 11 kV PSS from the Colombo City Control Center (CCCC), but other regions/areas do
not have the SCADA system like Colombo City. CEB has been developing the SCADA
system and some of these are already under operation at this moment. CEB has
developed several simplified SCADA systems, one of which is the simplified distribution
automation system (DAS) named ‘Micro SCADA’ in the North Western Province in Region 2.
This can operate and monitor switchgear in the network using communication links thru
General Packet Radio Service (GPRS) on public mobile telephone network. However, it is
not a real time control and monitoring of the system. A similar type of simplified SCADA
system is provided in the Central Province. However CEB has recently developed a new
SCADA system in Kandy, which can monitor the system in real time. In other areas, the
switchgear in the network are still manually operated by an electrician with telephone
communication, but not by remote control.
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In the Medium Voltage (MV) Distribution Development Study 2010 – 2019 (MV Development
Study) prepared by each distribution region or any other information from the CEB, a
proposal/statement regarding a ‘Smart Grid System’ has not yet been proposed. However,
CEB has the target to proceed with the electrification and rectification of several problems
such as overloading and voltage drop, and has started to provide automatic reading of
energy meter at retail distribution transformers, which will herald the Smart Grid System in
Sri Lanka. It now seems possible to apply the technique of ‘Smart Meter’ to the remote
monitoring of energy meters, which was proposed by the CEB in a letter to the MOPE.
Based on the above information collected during the site survey, the current status of CEB’s
distribution system was evaluated/analyzed and reported as follows.
(2) Current Status of CEB’s Distribution System
1) Boundary of transmission and distribution
The boundary of responsibility between the transmission branch and distribution
branches is the MV gantries of GS. The distribution branches are responsible for the
allocation of facilities from the gantries to consumers. The proposals issued by the
distribution branches cover MV distribution lines (33 kV and 11 kV), PS, distribution
substations and low voltage (LV) lines, but do not include facilities such as capacitor
banks or voltage controllers in GS. When the distribution branches need to provide
such facilities to solve problems on distribution system, the transmission branch will
propose the provision of any necessary equipment.
2) Growth of electricity power demand
The growth of peak demand of each region reported in the MV Development Study is
shown in Table 2.3-4.
Table 2.3-4 Peak Power Demand in Distribution System (unit: MW)
Regions 2011 2012 2013 2014 2015 2016 2017 2018 2019
Region 1 272 297 330 355 382 407 431 456 478 Region 2 720 775 838 906 952 1,003 1,054 1,111 1,165 Region 3 490 543 548 586 645 686 703 741 772 Region 4 379 417 447 477 551 568 596 613 637
Total 1,861 2,032 2,163 2,324 2,530 2,664 2,784 2,921 3,052
Increase ratio - 9.2% 6.4% 7.4% 8.9% 5.3% 4.5% 4.9% 4.5%
(Source: CEB MV Development Study)
Note: Total is summation of peak demand in each Region, actual peak demand of CEB overall shall be slightly different because peak
time is different in each Region/Area.
As shown in the table, total peak demand is increasing between 5% to 9% every year in
each region and overall CEB. Also, the growth of power energy demand in satellite
town surrounding Colombo City is very remarkable.
Chapter 2 Power Sector
2 - 13
3) Electrification
According to the instruction from the GoSL, CEB intends to increase the electrification
ratio to 100%. However, the electrification ratio in rural areas is lower than that of
urban areas as shown in Table 2.3-5 below.
Table 2.3-5 Electrification of CEB Distribution
Province Land Area (Sq.km)
Population (Million)
Households Electrified Households
Electrification Ratio
Demand Density (kW/Sq.km)
North West 7,756 2.32 667,000 594,899 89% 24.9 North Central 10,472 1.25 447,000 295,924 66% 8.9 Northern 8,847 1.17 224,000 143,611 64% 6.1 Colombo City 37 0.74 155,000 154,268 100% 6,811
Region 1 Total 27,112 5.00 1,493,000 1,188,702 80% 12.6 (excl CC) Western P N 1,421 2.50 492,878 465,010 94% 290 Central 4,600 2.26 659,340 600,000 91% 36 East 9,780 1.82 453,531 322,253 71% 13
Region 2 Total 15,801 6.58 1,605,749 1,387,263 86% 45 West-south 2 1,200 0.80 341,000 334,436 98% 187 Sabaragamuwa 8,350 1.45 353,000 346,000 98% 26 Uva 5,053 2.39 394,000 386,035 98% 13
Region 3 Total 14,603 4.64 1,088,000 1,066,471 98% 226 West-south 1 1,230 1.44 419,190 375,980 90% 120 Southern 5,497 2.90 669,667 650,446 97% 36
Region 4 Total 6,727 4.34 1,088,857 1,026,426 94% 51 CEB Total 64,243 20.35 5,092,468 4,217,391 83% 32
(Source: CEB MV Development Study)
In rural areas, the electrification level in the Southern Provinces is larger than in the
Northern Provinces. It is striking that the electrification level in the Northern Province
is only 42%, as some islands in the province are neither connected to a transmission
network nor an independent generating system such as diesel generators. Moreover,
they are not synchronized with the main transmission network of CEB.
4) Current status of distribution lines
CEB’s distribution system uses two kinds of ACSR conductors. One is ACSR Lynx
(37/2.79 mm) used for 33 kV trunk lines named the backbone lines and the other is
ACSR Raccoon (7/4.09 mm) used for 33/11 kV branch lines, named the pole lines. As
far as the specifications of the conductors used for distribution lines, no problem or
inadequacy were seen, despite the fact that long distribution distance may have caused
most of the distribution losses.
Table 2.3-6 shows the network components of CEB’s distribution system.
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Table 2.3-6 Network Components in Distribution System
Province Number of Grid SS
33kV lines (km)
Number of PS
11kV lines (km)
Number of LV SS
LV lines (km)
North West 6 3,497 19 283 3,227 17,628 North Central 3 3,087 5 258 1,739 8,397 Northern 2 903 4 176 617 3,205 Colombo City 4 48 5 572 1,318 804
Region 1 Total 15 7,534 33 717 6,901 30,034 Western P N 11 2,029 16 143 2,546 8,121 Central 6 3,188 3 130 2,781 12,288 East 5 1,846 20 373 1,552 6,448
Region 2 Total 22 7,063 39 646 6,879 26,857 West-south 2 6 1,059 9 16 1,657 5,040 Sabaragamuwa 2 2,727 0 0 1,452 10,438 Uva 4 2,680 5 54 1,572 8,878
Region 3 Total 12 6,466 14 70 4,681 22,042 West-south 1 4 793 17 72 1,148 3,175 Southern 5 3,612 17 209 2,649 18,394
Region 4 Total 9 4,405 34 281 3,797 21,569
(Source: CEB MV Development Study)
As shown in the above table, the
length of the distribution line is quite
long compared with the total lengths
of distribution lines and the quantity
of distribution substations. Actually,
the length to the most distant
consumer is 1.8 km and the total
lengths of LV lines connected to one
distribution substation is 8 km on the
average and 15 km at maximum. In addition, substandard connections of wires were
observed during site inspection, which may have caused the resistive losses at
connection points. As shown in the above photograph, the winding connection and
connector connection are on a single pole. This may cause the connection to become
loose because of the mechanical characteristic of aluminum which can be deformed by
continuous stress in a long duration.
All distribution lines are underground cables in Colombo City, using 11 kV cables
instead of 33 kV cables due to cost difference. Although losses on the 11 kV
distribution lines in Colombo City are not so large, their lengths are very short. In the
CCEDD project, the existing old 33 kV underground cables have been replaced with
132 kV cables.
5) Distribution automation system (DAS)
The SCADA system is provided in Colombo City by the CCEDD project. However,
other regions/areas still have no full scale SCADA system, except the North Western
Province (NWP) of Region 1, Western Province North, Central Province and Kandy City.
NWP in Region 1 applies a simplified DAS, which can control and indicate the status of
Connecter Type Binding type
Chapter 2 Power Sector
2 - 15
the switchgear from a remote control center through a mobile telephone network.
However, the status indication is not updated since it uses GPRS and Global System
for Mobile (GSM) Communications. It also does not communicate the status
periodically. When an operator accesses a remote station, he/she should first confirm
the present status of the switchgear and operate it
next. The Central Province also provides similar
system as the simplified system of Region 1 and the
same type is also provided in the Central Province of
Region 2 as shown in the right photograph.
Recently, Region 2 developed a new SCADA system which applies cyclic data
acquisition from local equipment and data logging. In Region 3, an identical DAS in
Kandy City is under development and will be completed in 2013. The system
configuration of Micro SCADA is shown in Figure 2.3-3.
Figure 2.3-3 Communication method of Micro SCADA
Western Province South-1 (WPS-1) in Region 4 has a
white board with mimic and symbol to indicate and
manually change the status of the switchgear as
shown in the right photograph.
CEB has applied GPRS/GMS to transmit and receive
the data for DAS. Considering the cost, security and
reliability of the system, it is suggested to use a dedicated line on the public telephone
network or dedicated communication link such as optical fiber communication. In the
latest situation in Sri Lanka, it is recommended to apply a fiber optic communication for
Back Bone Communication (BBC) and radio communication such as ZIGBEE or RF
Mesh system for the Last One Mile Communication (LOMC).
The specification of each system is summarized in Table 2.3-7.
Control Center
GSM/GPRS Network (Telecom Co.)
An operator accesses to each equipment one by one to take data from them.
Switchgear
Com. Interface
Com. Interface
Switchgear
Com. Interface
Switchgear
Com. Interface Com. Interface
Fault Detector
(Prepared by the Survey Team)
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Table 2.3-7 SCADA System applied in CEB Distribution System
Function Colombo City Region 1 NWP
(Micro SCADA)
Region 2 WPN
Region 2 Kandy
Control Center Region 2 Central
Province
Region 3 WPS-2 (under
develop.)
Communication O/F cable and Public tel-links
GPRS GSM/GPRS GSM/GPRS GSM/GPRS GSM/GPRS
Operated SWGR All SWGR/TR SWGR SWGR SWGR SWGR SWGR Database Provided for almost
all events, status
and electrical
quantity
Equipment
status and
events
Provided for
almost all events,
status and
electrical quantity
Provided for
almost all events,
status and
electrical quantity
Provided for
almost all events,
status and
electrical quantity
Provided for
almost all event,
status and
electrical quantity
Log Report Provided*1 Provided Provided Provided Provided Provided Intelligent function*2 Provided Not available Provided Not Provided Not Provided Not provided
(Prepared by the Survey Team)
Note 1: In the log report, the operation of switchgears, alarm, and fault event are recorded and reported on demand.
Note 2: In intelligent function, there are several features (e.g. the optimum recovery routine) that can be instructed to the operator.
(3) Current Status of Distribution Losses and Countermeasures
1) Non-technical losses
Non-technical losses are caused by misreading/error of energy meters, power theft,
street lighting and power supply to the public sector. However, CEB cannot grasp the
quantity of lost energy from LV substations because they do not have proper energy
meters. Therefore CEB calculates the losses from the difference between the input
energy measured at GS/PS and sold energy to consumers. In every region, it was
said that the breakdown of the non-technical losses were unknown.
2) Technical losses
Technical loss is composed of MV distribution losses (about 2%) and LV distribution
losses (about 10%). The MV distribution losses are reported in the MV Development
Study as shown in Table 2.3-8.
Table 2.3-8 MV Distribution Losses
Province Power Demand (MW)
Power Loss Energy Demand (GWh/y)
Energy loss MW % GWh/y %
North West 193 3.8 1.9% 1,023 12.9 1.3% North Central 93 3.0 3.2% 362 6.0 1.7% Northern 54 1.3 2.5% 204 2.6 1.3% Colombo City 189 1.2 0.7% 1,249 3.7 0.3%
Region 1 Total 529 9.3 1.8% 2,838 32.6 1.1% Western P N 412 8.5 2.1% 2,068 26.4 1.3% Central 164 6.5 4.0% 805 19.5 2.4% East 127 9.6 7.7% 544 22.8 4.2%
Region 2 Total 703 24.6 3.5% 3,418 68.7 2.0% West-south 2 224 3.3 1.5% 1,393 15.0 1.1% Sabaragamuwa 132 4.2 3.1% 487 7.7 1.5% Uva 112 5.1 4.5% 363 8.9 2.5%
Region 3 Total 468 12.5 3.0% 2,277 31.6 1.3% West-south 1 169 4.4 2.6% 1,098 19.6 1.8% Southern 190 4.7 2.4% 866 12.3 1.4%
Region 4 Total 359 9.1 2.5% 1,964 31.9 1.6%
(Source: CEB MV Development Study)
Chapter 2 Power Sector
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However, LV distribution losses were not given in the MV Development Study. CEB
explained that they do not have facilities to measure the energy to input to the LV
distribution line. CEB calculates the lost energy from resistance values and current
values on the LV distribution lines. Accordingly, energy meters are very effective tools
to measure the output energy for each LV distribution lines.
(4) Issues and Concerns to be solved in CEB’s Distribution System
1) Overloading in GSS/PSS
In the CEB’s distribution system, transformers and MV distribution lines do not have
any operation margin in their current capacities. For instance, scheduled shutdowns
are carried out in Kuriyapitiya to prevent overloading the equipment. It is very
important to reinforce the GS, PS and transformers to give an increased margin in
operation. CEB produces the reports on the MV Development Study only every two
years. However, overloading on facilities occur every year. The followings are the
unnoticed problems to be addressed in the development plan.
i) Growth of power demand is more rapidly increasing than expected.
ii) Remarkable delays in the schedule of reinforcement/installation.
iii) Expected margin of facility is too small; and
iv) Low quality of distribution facility due to aging, improper design and poor
equipment quality.
It is recommended to take the soonest action to find the root causes of the problems
and take the countermeasure(s) to solve the above conditions in overloading.
2) Voltage drop
Voltage drop is observed at many locations on CEB’s distribution system. The root
causes of voltage drop are the distribution of electric power on long distribution lines
and overloading. The following three countermeasures are considered to rectify
voltage drop.
i) Provide additional distribution lines and/or size up the conductors;
ii) Construct new GS to shorten the distribution lines; and
iii) Provide voltage compensation facilities such as step voltage regulator (SVR)
If the capacity of the distribution line is sufficient to feed the power to consumers, it is
an economical solution to provide voltage compensation facilities. However,
considering the current situation of CEB, it is recommended to take the option i) and/or
ii).
3) DAS
It is recommended to provide a DAS to the distribution system. If DAS is provided, the
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following advantages will be realized in the distribution control and management of CEB.
i) Continuous monitoring of switchgear
It is very essential to indicate the present status of switchgear in the Domestic
Control Center (DCC). Under the present system, the call center received the
claim from consumers and confirms the status of equipment. If DAS is
provided in the DCC, the following activities can be available automatically.
- 24 hours monitoring (no call center)
- Indication of status of switchgear and live/dead conditions of line section
- Support system to instruct fault locations on a map and failed equipment
identification.
ii) Remote control of equipment
Under the present system, the call centers receive the information from
consumers and the control center instructs the operators to visit the site and
change the status of the switchgear. It takes a long time to changeover the
switchgear and to minimize the shut-down section. After the changeover of
the switchgear, the control center may instruct maintenance electricians to
repair the failed equipment. If DAS is provided, it is possible to changeover
the switchgear without visiting the site and the shut-down section can be
minimized. In addition to remote control, it is possible to provide software to
control the switchgear automatically or give suitable instructions to the
operators in accordance to a pre-determined routine. Also, DAS can monitor
the power factor on the system and control the reactive power by switching-in
capacitors.
However, it is essential to provide the operating mechanism in the switchgear in
order to control these by remote signal.
iii) Continuous monitoring for disturbance and control
It is not possible to measure the electric current on each distribution line under
the present system. The DAS can monitor all information on the distribution
lines and it can acknowledge the abnormality on the distribution line even if it is
given by a complicated calculation. For example, in the case of overloading of
a distribution line, DAS automatically detects the changeover of the switchgear
status will be done to even the load current on each line.
iv) Database and reporting
Currently, operators record the status and/or disturbance on a log book or
manually input the record to a PC database. The DAS has the routine function
of recording into the database and can issue a report of any information
Chapter 2 Power Sector
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automatically or on request. It can also eliminate any human error in
recording and reporting.
v) Intelligent DAS functions
At present, operators monitor the distribution system and make decisions to
control the switchgear through their own skills and knowledge. Intelligent
functions can be provided with the DAS by adding an optional software. For
example, it is possible to issue an alarm easily by an output of calculation, even
if it can be calculated only through a complicated process or equation.
vi) Communication for DAS
At this moment, CEB uses GSM/GPRS for DAS. However, it is not a suitable
communication system for the control of electric power system because of cost,
reliability and security reasons.
4) Provision of energy meters and data transmission
CEB has the static energy meters (Class
1.0) with remote reading facilities for large
consumers through GSM network as
shown in the right figure. Also typical
structure of large consumer is shown in the
photographs below. An operator remotely
accesses the energy meters once a month
to take consumption data one by one.
However, in some distribution substations,
energy meters are not provided, or old
fashioned mechanical types (induction
disk-type meters with class 2.0) are used.
Consequently, it is not possible to measure
energy on LV lines and it takes time to read
the meter indication on site. To analyze
the distribution losses, energy meters are
an effective tool to measure the losses.
In case of resistive losses on distribution
lines, it is possible to calculate the losses
by impedance of the conductor and the load current on a line. Even if meters are to be
provided at distribution substations, operators need a lot of work to go to the sites and
read the meters due to the large numbers of energy meters; more than 1,000 sets are
to be installed at distant place in one local area office. To save time and manpower to
read meters, it is important to add a remote data monitoring system to send the reading
Inside of Kiosk
Kiosk
Typical structure of large consumer
DT
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
2 - 20
of a meter to the Control Center. In addition to the energy meter reading at a
distribution transformer, it is recommended to provide smart metering at each consumer
location in the future.
5) Increase of transformer loss due to inadequate transformer capacity
CEB has standard series of DT capacity of 100 kVA, 160 kVA and 250 kVA. If the
power demand in rural areas is very small at the distribution substation, the minimum
rating of 100 kVA transformers is used for the substation. In this case, no-load loss
(iron loss) is very large because of the too-large transformer rating comparing with the
power demand. If a transformer with adequate capacity such as 30 kVA is used for a
small-demand substation, it is possible to reduce the no-load loss of the transformer.
If a small single phase transformer is applied to the LV feeder with small load, further
reduction of no-load loss is possible.
In addition, if low-loss transformers with the latest technique such as ‘Top Runner
Transformer’ with appropriate capacities are to be applied in the system, these are
expected to remarkably reduce transformer losses.
6) Distribution losses caused by long LV lines
It was confirmed that the length of the LV line to the most distant consumer is 1.8 km
and the total lengths of LV lines connected to one distribution substation are on the
average, 8 km and at maximum, 15 km. The LV lines seem too long and produce
large distribution losses. It is therefore an effective countermeasure to provide
additional LV distribution substations to reduce the lengths of LV lines and accordingly,
decrease the distribution losses.
7) Theft of electric power
Most modus operandi of power theft is hanging a hook on a bare LV wire, because the
density of population is very thin in rural areas and therefore, it is very difficult to notice
such an activity in a wide area. Under the current distribution system of CEB, it is
difficult to discover power theft because electrical energy is not exactly monitored on
the LV line. Therefore, it is recommended to provide energy meters on every LV line
to monitor the branched energy by theft.
8) Resistive losses at connection points on LV lines
It was observed that LV distribution wires were connected by a connector or a manual
winding connection. There are two reasons of connection loss on an LV line. One is
manual connection by an unskilled electrician; it is very difficult to control the skill and
check the connection on site. A worker climbs on the pole alone and carries out the
connection work without appropriate examination. The other reason is the connection
by screw connector; aluminum can be deformed at the screw connector in long duration
and therefore causes improper contact, which results in heating loss by contact
Chapter 2 Power Sector
2 - 21
Vehicle and ladder for Site work at pole
resistance at a connection point. A thermal imaging camera can observe heating at
the connection.
It is necessary to use hydro-compression tools by which proper compression clamp
connection can be done without long-term experience. It is also recommended to
properly train the workers to eliminate defective connection.
9) Rehabilitation of aged facilities
Some existing 11/0.4 kV transformers were manufactured more than 70 years ago and
are still working at 11 kV substations. Considering the current technique level, it is
possible to reduce transformer losses by applying the recent technology.
Rehabilitation/reinforcement of aged facilities is thus one of the options to reduce
distribution losses.
10) Salt contamination along the seaside
Since salt contamination is observed on overhead lines along the seaside, the CEB
applied 33 kV insulators for 11 kV distribution lines to increase the creepage distance of
insulators. As a drastic measure to solve salt contamination, cables should be
adopted to distribution lines instead of overhead conductors. It is effective to reduce
distribution losses through provision of new small unmanned GS or PS to which 132 kV
or 33 kV cable will be connected from 132 kV or 33 kV network to minimize lengths of
11 kV overhead lines.
11) Applicability of low loss transformers
Almost all DTs are supplied in accordance with standard specification of LTL. The
Survey Team has investigated and confirmed whether LTL can supply the DTs with
directional silicon iron core. However, it is very difficult to apply amorphous iron core
for DTs because the design of the amorphous transformers are completely different
from the directional silicon iron core and large changes in production line is required.
In order to be produced amorphous transformer by LTL, technical assistance shall be
required by Japanese manufacturers.
12) Safety issues for site works
Site work for distribution lines is very dangerous.
Normally CEB workers are climbing on the top of poles
by ladders and
carrying out the
work.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
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(5) Others
1) Street lighting
The power for street lightings is fed from an LV distribution line. Tariff for street
lighting is not paid to the CEB. To reduce the demand, CEB proposes energy saving
activities to the departments concerned in Colombo City.
2) Capacity building
When the Survey Team visited the CEB Training Center, the Deputy General Manager
(DGM) of the Training Center explained that the ‘SynerGEE’ (USA) software has been
used for distribution planning for more than ten years. Extension of the license is
made every year and each regional office has the license. It is considered that to
support to provide other software for distribution planning is not necessary because
CEB is accustomed to and satisfied with SynerGEE. Meanwhile the DGM of the
Training Center requested the Survey Team to supply hydro compression tools for
connecting distribution conductors and to train electricians how to correctly use the
tools to reduce distribution loss. The Survey Team supposes that it is very effective
for loss reduction.
3) Billing system to consumers
CEB has several area offices in each province. Meter readers of CEB visit each
consumer once every month to read energy meters and issue the bills to CEB’s billing
center. The billing center mails official bills to consumers in due course. Each
consumer pays the bill by several methods such as direct payment at CEB area office,
at super market or by bank account. If consumer does not pay the bill, CEB issues the
“Red Notice” to the consumer and may stop electricity when he does not pay the bill
within the decided time.
Almost all meters for small consumers are electro-magnetic type with accuracy class
2.0. CEB does not accurate the meters periodically then they only goes to consumer
when they send claim to the service center or a meter reader find a problem during
meter reading. The Survey Team has found the several problems in current billing
system as follows;
- Failure of energy meters produces lots of non-technical losses.
- Poor accuracy class of energy meter may produce much non-technical losses.
- It is difficult to find the problems in energy meters until it shows remarkable error.
Chapter 2 Power Sector
2 - 23
2.4 Development Plans
2.4.1 Long-Term Transmission Development Plan
The Transmission Planning of CEB has been preparing the Long-term Transmission
Development Plan (LTTDP) 2011-2020. The objectives of the LTTDP 2011-2020 are:
1) To formulate the required transmission development to ensure a reliable and stable
power system for the period year 2011 – 2020 and the planned implementation dates.
2) To estimate the investment cost of the transmission development within the period from
year 2011 to 2020.
The LTTDP 2011-2020 has been prepared as a result of power system analysis, considering
the current issues described in Sub-section 2.3.2, and based on the national power and
energy demand forecast as well as the long-term generation expansion plan.
Chapter 5 of the LTTDP 2011-2020 includes transmission expansion proposals with the
following three categories:
1) Uncommitted transmission development proposals
The transmission network expansion proposals, which are identified as a result of the
system analysis done by CEB Transmission Planning, include two kinds of project lists;
one is the list of already committed and being implemented projects, and the other is
the list of uncommitted projects.
2) Power plant connection proposals
This includes transmission system development required for power plant developments.
3) Other transmission development proposals
Apart from the above transmission system expansion and reinforcement proposals,
other proposals include minor system improvements or renewal needs to enhance the
operational and maintenance aspects of the transmission system.
Among the proposals mentioned above, the Survey Team agreed with CEB to take the list of
uncommitted projects of transmission development proposal as the long list for the candidate
subprojects for Japan’s Loan Aid as shown in Table 2.4-1.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
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Table 2.4-1 Transmission Expansion Proposals
ID Projects Comm. year
Base Cost (MLKR) FC LC
Expected Funding
1 Installation of 100 MVar capacitor bank at Pannipitiya GS 2012 206.3 13.0 GoSL 2 Construction of Colombo-B 132/11 kV GS with single in/out connection from
Colombo-C - Kolonnawa 132 kV UG cable 2013 908.0 133.8 JICA
3 Augmentation of Sri J'pura GS 2013 389.5 59.6 GoSL 4 Augmentation of Hambantota GS 2013 369.8 59.6 GoSL 5 Construction of Suriyawewa 132/33 kV GS 2013 808.9 197.9 GoSL 6 Construction of Kegall 132/33 kV GS with Thulhiliya-Kegall Zebra, 132 kV 14
km 2-cct TL and TL bays at Thulhiliya GS 2013 994.4 252.7 ADB*1
7 Construction of Kerawalapitiya 220/33 kV GS 2013 880.8 140.3 JICA 8 Augmentation of Colombo-A GS 2013 203.8 39.1 JICA 9 Construction of Kappalturai 132/33 kV GS with double in/out connection from
New Anuradhapura - Trincomalee 132 kV TL 2013 742.9 145.0 JICA
10 Construction of Kalutara 132/33 kV GS with single in/out connection from Panadura - Mathugama 132 kV TL
2013 728.4 155.7 JICA
11 Installation of 2nd 220/132 kV, 105 MVA inter-bus ATR at Rantambe PS 2013 287.1 67.2 GoSL 12 Installation of 3rd 220/132/33 kV, 150 MVA inter-bus ATR at New
Anuradhapura GS 2013 303.8 67.7 N/A
13 Installation of reactive power compensation devices at Kurunegala GS (30 MVar)
2013 116.2 8.4 N/A
14 Reconstruction of Polpitiya-Kiribathkumbra-Ukuwela-Habarana 132 kV, 164 km 2-cct TL (from Lynx to Zebra)
2014 2,652.8 1,384.3 N/A
15 Replacement of 132 kV 500 mm2 OF cables between Colombo-E and Colombo-F
2014 184.3 13.1 JICA
16 Construction of Vauniya-New Anuradhapura Zebra, 132 kV, 55 km 2-cct TL 2014 889.6 464.3 ADB*1 17 Construction of Thulhiliya-Veyangoda Zebra, 132 kV, 28 km, 2-cct TL with 2
TL bays at Veyangoda GS 2014 645.6 304.7 N/A
18 Construction of Pannipitiya-Ratmalana Zebra, 132 kV, 7 km, 2-cct TL 2014 113.2 59.1 N/A 19 Reconstruction of 132 kV TL with Zebra, Bolawatta-Pannala-New Chilaw 2014 372.0 194.1 N/A
20 Augmentation of Madampe GS 2014 318.7 56.4 N/A 21 Construction of Mannar 132/33 kV GS with Vavuniya-Mannar Zebra, 132 kV,
75 km, 2-cct TL and 2 TL bays at Vauniya GS 2014 1,749.1 747.7 ADB*1
22 2nd-cct stringing of 132 kV Habarana – Valachchenai TL, Zebra, 100 km 2014 293.0 11.0 N/A
23 Augmentation of Kelaniya GS 2014 321.0 53.9 N/A
24 Construction of Kirindiwela GS with related 220 kV and 132 kV TL and 2X132 kV TL bays at Kosgama GS
2014 1,518.0 291.5 JICA
25 Construction of New Polpitiya GS with Polpitiya - New Polpitiya 2xZebra, 132 kV, 10 km, 2-cct TL
2014 1,436.7 298.3 ADB*1
26 Construction of Padukka GS with Athurugiriya - Padukka 2xZebra, 132 kV, 12.5 km 2-cct TL
2014 1,577.0 323.3 ADB*1
27 Construction of New Polpitiya - Padukka - Pannipitiya 2xZebra, 220 kV, 58.5 km, 2-cct TL
2014 1,987.4 779.2 N/A
28 Construction of Athurugiriya - Kolonnawa 2xZebra, 132 kV, 15 km, 2-cct TL 2014 320.1 158.3 N/A 29 Installation of 3rd 220/132/33 kV, 250 MVA inter-bus ATR at Pannipitiya GS 2014 340.9 68.4 N/A 30 Construction of Colombo-K 132/11 kV GS with single in/out connection from
Dehiwala - Colombo-A 132 kV UG cable 2014 777.7 138.5 JICA
31 Augmentation of Aniyakanda GS 2014 234.6 48.3 N/A 32 Installation of reactive power compensation devices at 8 GS 2014 1,084.2 78.6 ADB*1 33 Construction of Upper Kotomale - New Polpitiya 2xZebra, 220 kV, 25 km, 2-
cct TL with 2 TL bays at Upper Kotomale PS 2014 909.9 333.4 N/A
34 132 kV TL upgrades with Zebra for 6 sections 2015 1,172.7 612.0 N/A 35 Construction of Weligama 132/33 GS with double in/out connection from
Galle - Matara 132 kV TL 2016 729.5 130.4 N/A
Chapter 2 Power Sector
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36 Installation of reactive power compensation devices at Valachchenai GS (20 MVar) and Matara GS (20 MVar)
2016 154.9 11.2 N/A
37 Construction of New Habarana - Veyangoda 2xZebra, 220 kV, 142 km, 2-cct TL and New Habarana GS with double in/out connection from Kotomale-New Anuradhapura 220 kV TL
2016 6,268.9 2131.3 JICA*2
38 Augmentation of Chunnakam GS 2016 207.0 29.1 N/A 39 Construction of New Polpitiya - Galle 2xZebra, 220 kV, 115 km, 2-cct TL with
2 TL bays at New Polpitiya GS 2017 3,804.6 1,524.4 N/A
40 Upgrade Galle GS to install 220 kV ATR 2017 799.6 151.3 N/A 41 Installation of reactive power compensation devices at Colombo-A GS (20
MVar) 2017 77.4 5.6 N/A
42 Augmentation of Maho 132/33 kV GS with 2nd cct stringing of Puttalam-Maho, Zebra 132 kV, 42 km TL and TL bay at Puttalam GS
2017 1,049.7 480.5 N/A
43 Construction of Veyangoda-Kirindiwela 2xZebra, 220 kV, 17.5 km, 2-cct TL with 2 TL bays at Veyangoda GS and 2 TL bays at Kirindiwela GS
2018 774.4 246.2 JICA
44 Construction of Kirindiwela - Padukka 2xZebra, 220 kV, 20 km, 2-cct TL with 2 TL bays at Padukka GS and 2 TL bays at Kirindiwela GS
2018 854.8 279.2 JICA
45 Reconstruction of 132 kV Balangoda – Deniyaya – Gall TL, Zebra, 101 km 2018 1,633.7 852.5 N/A 46 Installation of reactive power compensation devices at Padukka GS (100
MVar) 2018 187.7 12.7 N/A
47 Augmentation of Pannala GS 2019 234.6 48.3 N/A 48 Augmentation of Athurugiriya GS 2019 234.6 48.3 N/A 49 Construction of Kappalturai - Kilinochchi Zebra, 132 kV, 140 km, 2-cct TL
with 2 TL bays at Kappalturai GS and 2 TL bays at Kilinochchi GS 2019 2,359.3 1,199.3 N/A
50 Augmentation of Dehiwala GS 2020 234.6 48.3 N/A 51 Augmentation of Kilinochchi GS 2020 207.0 29.1 N/A
- Rehabilitation of Kiribathkumbra 132/33 kV GS 2016 782.0 91.0 JICA*3 - Rehabilitation of Anuradhapura 132/33 kV GS 2012 698.8 147.0 JICA*3
(Source: Long Term Transmission Development Plan 2011-2020, CEB Transmission Planning)
Note *1: Projects are included Clean Energy and Network Efficiency Improvement Project to be funded by ADB
Note*2: Project was already committed by JICA.
Note *3: Project is originally included in Other Transmission Development Proposals in LTTDP 2011-2020
It should be noted that “GoSL” and “ADB” shown in “Expected Funding” column in the table
means “not yet committed but probably to be funded by GoSL/ADB”, and “JICA” means
CEB’s initial request with project proposal (PP) numbers for Japan’s Loan Aid to be
described in Section 3.1 of Chapter 3.
2.4.2 Distribution Line Development Plans
The CEB plans several MV distribution projects in the MV Development Study, which are
prepared by each distribution region and issued every two years. However, any
development plan for low voltage distribution system is not included in the MV Development
Study. The MV Development Study include the construction of new PSs and MV
distribution lines, augmentation and rehabilitation of the existing system to reduce the
distribution losses and improve reliability of the distribution system.
1) Methodology of Planning
CEB plans several development projects to be evaluated by computer based modeling
using the planning software SynerGEE ver. 3.52/36 in the following process.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
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Step 1 Data collection of network and load data
Step 2 Modeling of existing distribution network and analysis of existing system
Step 3 Network load assessments and load forecasting
Step 4 Modeling of future loads and simulation of various MV network enhancement
option to select optimum techno-economic solution, analysis of simulated
network
The development plans are formulated according to the load and power forecasting
based on computer-aided planning.
2) MV Development Study
After forecasting future system analysis and planning, followed by referring planning
criteria, the proposal will be produced. Upon economic evaluation of candidate
projects, the final project proposals are selected.
Table 2.4-2 shows the MV development projects proposed by each regional office.
Table 2.4-2 MV Development Projects
Description Type Region 1 Region 2 Region 3 Region 4 Backbone Lines (km) Lynx DC Tower 342 544 69 171 Lynx SC Tower 0 113 124 17 Lynx DC Pole 272 0 14 0 Lynx SC Pole 239 105 58 28 Racoon DC Pole 12 - - - Racoon SC Pole 82 - 26 - Racoon - 40 - - Racoon Pole - - - 3 Distribution Gantries (Nos) DBB Tower Gantry 18 32 1 - SBB Pole Gantry 6 22 9 - 4 Pole Gantry 11 - - - Gantry - - - 11 MV Line Conversion (km) 11 kV to 33 kV 101 159 - - Reconductoring Lines (km) Racoon Pole 196 - - 0 Elm/Lynx Pole 21 - - - Elm/Lynx Tower 22 - 7.5 - Elm - - - 36 Weasel → Racoon - 10 27 12 Weasel/Racoon → Lynx - 15 29 4 New Primaries (Nos) Manned Primaries 4 - 3 - Unmanned Primaries 12 5 - - Primaries - - - 21 New Substations (Nos) Radial Substations 4 - - - Ring Substations 1 - - - Re-Distribution SS 1 - - - PSS Augmentations (Nos) 8 4 - 7 Installation (Nos) Voltage Regulator 3 - - - Capacitor Bank 2 - - - 33kV/11kV Underground Cable 4 - 3 Others Conversion 33 kV to 11kV(km) - - 10 2
Change Line Tapping UG Cables(km)
- -
- -
- 4.5
1 -
(Prepared by the Survey Team based on the MV Development Study)
2.5 Other Donors’ Assistance
(1) Asian Development Bank (ADB)
Since 1998, ADB’s assistance in Sri Lanka’s power sector has focused on expanding the
Chapter 2 Power Sector
2 - 27
infrastructure as well as strengthening CEB and LECO, while providing complementary
support for power reforms. For example, ADB has supported CEB in strengthening its
transmission and distribution systems and expanded rural electrification.
The power sector strategies of ADB are based on Sri Lanka’s development policy framework
(namely, Mahinda Chintana), with the recent one being in 2010. The framework provides a
comprehensive sector development road map, including long-term investment programs,
policies, and reform measures. The goal of Sri Lanka’s power sector is to provide improved
service delivery to the entire population by the end of 2012, such as by providing reliable
services and reducing the cost of service delivery. On such basis, ADB’s assistance
focuses on renewable energy development (including wind and other clean energy sources),
energy efficiency improvement, improving the efficiency of transmission and distribution
systems, and improving energy access for lagging regions. ADB will work with the
government in reducing system losses through improved metering efficiency and better
management systems. ADB will also help the government in creating an enabling
environment for clean power development through sector reforms and PPPs. Table 2.5-1
below shows the strategy of ADB for the energy sector in Sri Lanka.
Table 2.5-1 ADB Strategy for the Energy Sector
(Source: ADB Country Partnership Strategy: Sri Lanka 2012-2016)
Legend: EGM: effective gender mainstreaming, ENV: environmental sustainability, GEN: gender equity, PSD: private sector
development, RCI: regional cooperation and integration.
The latest project approved was the Clean Energy and Network Efficiency Improvement
Project, of which structure is as detailed below.
1) TA: Clean Energy and Network Efficiency Improvement Project (Approved) (formerly
Power Sector Strengthening Project)
Technical Assistance Special Fund: US$ 1.0 million
2) Clean Energy and Network Efficiency Improvement Project (for approval in 2012)
2-1) TA: Clean Energy and Network Efficiency Improvement Project
Technical Assistance Special Fund: US$ 900,000
Clean Energy Fund – Multi-donor: US$ 1.5 million
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2-2) Loan: Clean Energy and Network Efficiency Enhancement (Transmission)
Ordinary Capital Resources: US$ 100.0 million
2-3) Loan: Clean Energy and Network Efficiency Improvement Project (Transmission)
Asian Development Fund: US$ 30.0 million
(2) World Bank
The World Bank (WB) is currently implementing 13 projects totaling US$ 1.068 billion. In
the power sector, WB has contributed to increasing the availability of electricity in rural areas
and energy supply from renewable sources. For example, access to electricity in rural
areas has expanded with the support of the Renewable Energy for Rural Economic
Development Project1.
The WB will support the government’s efforts to address the challenges for achieving its
vision by: (i) facilitating sustained private and public investment through improving the
investment environment and increasing fiscal space and public spending efficiency, (ii)
supporting structural changes of the economy through assistance for a knowledge-based
economy, and increased internal and international integration and competitiveness, and (iii)
promoting improved living standards and social inclusion by improving the quality of services,
reducing malnutrition and promoting social inclusion.
(3) China
Since the end of the civil war in 2009, there has been a noticeable increase in Chinese
lending, with almost US$ 6.5 billion being invested primarily in infrastructural projects,
making China a major player in Sri Lanka’s development. China’s loans to Sri Lanka are
neither at preferential rates nor as grants-in-aid, but offers a grace period of 4-5 years for
repayment.
According to the Annual Report 2011 from the Ministry of Financing and Planning of Sri
Lanka, the total project portfolio funded by China in 2011 was US$ 2,522 million. The
power and energy sector was the second largest amount of the total portfolio, being 20 % of
the total. Also in 2011, the China Development Bank Corporation agreed to provide
US$ 1.5 billion over a three year period for roads, power plants and irrigation schemes.
1 By this project, 139,241 new rural households have access to electricity (committed amount US$ 75 million).
Chapter 2 Power Sector
2 - 29
(Source: Annual Report 2011, Ministry of Financing and Planning of Sri Lanka)
Figure 2.5-1 Chinese Assistance to Sri Lanka 2011
In addition to the above, China is expected to contribute about US$ 10 billion, which is
almost half the amount that Sri Lanka is expected to spend during 2012-2015 for
infrastructure development.
In power generation, China National Machinery and Equipment Corporation constructed the
first phase of the 900 MW plant (three 300 MW coal power plant) in the Norochcholai area,
which was under a LKR 51,415 million loan from China’s Export and Import (EXIM) Bank.
Moreover, approval has been given to proceed with the construction of Broadlands
Hydropower Project. This is a 35 MW hydropower project in the Kelani River, located in the
Central and Sabaragamuwa Provinces. The estimated construction cost was US$ 103
million but a Chinese contractor, China National Electric Equipment Ltd, has undertaken the
project cost for US$ 82 million and is scheduled to be completed in 2014. According to the
Ceylon Electricity Board, this project will minimize the carbon dioxide emission to the
environment, decreasing it by 80,000 tons per annum, earning for the country US$ 2.4
million in carbon trading.
(4) Iran
Iran has been funding a number of infrastructure development projects in Sri Lanka. For
example, it shall provide assistance in doubling the capacity of the Sapugaskanda Oil
Refinery, the creation of a 100 MW hydropower project, and to the Uma Oya Multipurpose
Development Project2.
In the power sector, Iran has expressed its stance to continue financial and technical aid for
rural electrification projects to strengthen the electricity supply to remote villages of Sri Lanka.
2 Construction of two dams across two main tributaries of Uma Oya at Welimada and Dyraaba and a 23 km long trans basin
diversion tunnel with an underground power station at Randeniya.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
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These projects, also called the Rural Electrification Project–8 scheme, will electrify a
thousand villages in eleven CEB provinces: North West, Central, Western North, Eastern,
West South, West South–II, Sabaragamuwa and Southern Provinces. The expected
completion date of the project is June 2012 and the total estimated cost is US$ 106.5 million.
The proposed contractor for this project is Sunir Co. of Iran and supplies all the materials
except the RC pre-stressed poles, which will be procured by CEB. The project is expected
to bring benefits to about 180,000 rural households.
(5) India
The National Thermal Power Corporation Limited (NTPC), the largest thermal power
generation utility of India and CEB signed the joint venture and shareholder agreement to set
up Coal Thermal Power Plant at Sampur in September 2011. The power plant at Sampur
has a total capacity of 500 MW with two generating units of 250 MW each. The project is a
fifty-fifty joint venture between CEB and NTPC. The power plant at Sampur with a total
investment being US$ 500 million, would be Sri Lanka’s second coal-fired power plant.
The Government of Sri Lanka has allocated a 500 acre land in Sampur for the site and will
construct the coal unloading jetty and install related equipment. The Government of India
has offered a concessional line of US$ 200 million to Sri Lanka to expedite the construction.
It is expected that the issuance of tenders for construction will be made by the end of 2012
and completion will be by the end of 2016.
(6) Other countries and summary
Table 2.5-2 shows the committed or on-going transmission and distribution projects, and
Table 2.5-3 shows the assistances for generating plants and others.
Chapter 2 Power Sector
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Table 2.5-2 Assistance for Transmission and Distribution Projects
No Projects Project Cost Fund Comm. year
1 Colombo City Distribution Development Project JY 5,959 mil JICA completed 2 Clean Energy & Access Improvement Project
3.1 Construction of new system control center 3.2 Lot A1 - Augmentation of grid substations 3.3 Lot A2 - Transmission system strengthening GS 3.4 Lot B - Construction of transmission lines 3.5 Augmentation of GS for absorption of renewable energy 3.6 Transmission system Strengthening in the Eastern Province
LKR 2.528 mil
LKR 918 mil LKR 3,567 mil LKR 2,203 mil LKR 2,240 mil LKR 2,852 mil
ADB 2012
3 Vauniya - Kilinochchi Transmission Project JY 1,422 mil JY 1,278 mil
JICA 2012
4 Kilinochchi - Chunnakam Transmission Project US$ 28.7 mil ADB 2012 5 Sustainable Power Sector II Project US$ 95.4 mil
LKR 29 mil ADB 2013
6 Procurement of materials for the Power Sector Development Programme in Northern Province
US$ 31.7 mil EXIM Bank of China
(committed in 2010)
7 Rural Electrification Project -8 (Northern and Eastern Provinces) Euro 77.1 mil EDB of Iran 2012 8 Rural Electrification Scheme
- in North Central Province - in Trincomalee and Batticoloa Districts - in Badulla and Monaragala Districts under Uva Udanaya project - in Jaffna, Vavuniya, Mannar, Mullathivu and Killinochchi districts under Uthuru Vasanthaya project
US$ 57.9 mil
US$ 60 mil US$ 34 mil US$ 34 mil
EXIM Bank of China
2012
9 New Habarana – Veyangoda Transmission Project JY 9,573 mil JICA 2016 10 Clean Energy and Network Efficiency Improvement Project
- Transmission infrastructure strengthening in the Northern province - Transmission and distribution network efficiency improvement - Solar rooftop power generation
US$ 41.8 mil US$ 118.3mil
US$ 2.8 mil
ADB (committed in 2012)
(Source: Prepared by the Survey Team referring to the data from CEB, DER and JICA)
Table 2.5-3 Assistance for Generating Plants and Others
No Projects Project Cost Fund Comm. year 1 Norochcholai (Puttalam) Coal Power Plant Project (900 MW) US$ 891 mil EXIM Bank of
China Ph-1 (300 MW) completed, Ph-2&3 (600 MW) 2014
2 Uma Oya Multipurpose Development Project including Uma Oya HPP (120 MW)
US$ 529 mil EDB of Iran (85%) GoSL (15%)
2012
3 Upper Kotomale Hydropower Project (150 MW) JY 4,552 mil JY 33,265 mil
JY 1,482 mil
JICA 2011
4 Rehabilitation of Old Laxapana HPP (50 MW) US$ 32.5 mil Uni-Credit Bank of Austria AG
(committed in 2010)
5 Rehabilitation of Wimalasurendra (50 MW) and New Laxapana HPPs (100 MW)
US$ 55.2 mil AFD 2013
6 Trincomalee Coal Power Project (1,000 MW) LKR 60,000 mil Government of India and GoSL
2017
7 Renewable Energy for Rural Economic Development US$ 115 mil US$ 8 mil
IDA GEF (grant)
2011
8 Trincomalee integrated Infrastructure Development Project (electricity distribution portion)
Euro 58.2 mil (Euro 2.45 mil)
AFD 2011
(Source: Prepared by the Survey Team referring to the data from CEB, DER and JICA)
CHAPTER 3 TRANSMISSION LINE PROJECTS
Chapter 3 Transmission Line Projects
3 - 1
CHAPTER 3 TRANSMISSION LINE PROJECTS
3.1 General
CEB submitted the following list to the Survey Team which is required for the Japan’s Loan
Aid. The list was prepared by selecting sub-projects from the long list entitled Long Term
Transmission Development Plan which was described in Sub-section 2.4.1. The order of
the projects is in the order of CEB’s priority.
Table 3.1-1 CEB’s Priority Projects
No. Projects Base Costs
(MUS$)
PJT-1 Colombo City Transmission Development 145 PJT-2 Construction of Kappalturai 132/33 kV GS 10 PJT-3 Construction of Kerawalapitiya 220/33 kV GS 10 PJT-4 Rehabilitation of Kiribathkumbura 132/33 kV GS 8 PJT-5 Construction of Veyangoda–Kirindiwela–Padukka 220 kV TL 37 PJT-6 Construction of Chemmuni 132/33 kV GS 10 PJT-7 Construction Kalutara 132/33 kV GS 8 PJT-8 Construction of Battaramulla 132/33 kV GS with related TL 9 PJT-9 Reconstruction of Anuradhapura 132/33 kV GS 10 PJT-10 Construction of Nawalapitiya 132/33 kV GS with related TL 8 PJT-11 Construction of Wewalwatta 132/33 kV GS with related TL 7 PJT-12 Construction of Tissamaharama 132/33 kV GS with related TL 13
Total 275
(Source: CEB Transmission Planning)
Together with the list above, CEB has compiled proposals for each project. On the basis of
the submitted proposals, the Survey Team carefully studied the development plan proposed
by CEB and evaluated them based on the degree of their contribution to the improvement
and reliability of transmission systems in Sri Lanka. Distribution projects proposed by CEB
are examined in Chapter 4.
3.2 Proposed Transmission Projects
This section describes the contents of the project proposals submitted by CEB. Project
scopes and costs, which are modified and adjusted by the Survey Team, are described in
Chapter 7.
3.2.1 Colombo City Transmission Development (PJT-1)
(1) Objective
At present, electric power in Colombo City is supplied by Colombo A (Havelock Town),
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Colombo C (Kotahena), Colombo E (Kollupitiya), Colombo F (Fort), Colombo I (Maradana),
132/11 kV GSs and Kolonnawa and Kelenitissa 132/33 kV GSs. The present demand for
the GSs is approximately 318 MVA in total. However, it is expected that there are some
urban development plans which require larger power demand in Colombo City in the near
future.
According to the demand forecast prepared by CEB, of which extract is shown in Table 2.3-2
of Chapter 2, approximately 120 MVA demand is to be added to the Colombo City network
by 2015 and 357 MVA demand is to be added by 2020. Therefore, the transmission
network development for Colombo City needs to be implemented to meet the demand
growth. In addition, it is expected to realize improved quality and reliability of power supply
in Colombo City.
Figure 3.2-1 shows outline of the project proposed by CEB.
(Source: Project Proposal, CEB Transmission Planning)
Figure 3.2-1 Outline of Colombo City Transmission Development
According to CEB’s proposal, the project is planned to be implemented in two phases. The
green colored dotted line shows the second phase of development. It is further proposed to
use the existing oil-filled copper 500 mm2 cables to ensure N-1 reliability to Colombo E GS
until the second phase is completed.
At present, the aforementioned existing 132/11 kV GSs are supplied with electric power by
Kelanitissa and Pannipitiya 220 kV GSs. At present, inter-bus transformers with the
capacity of 2x150 MVA and 2x250 MVA are installed at Kelanitissa and Pannipitiya GSs,
respectively. To meet the rapidly increasing demand forecasted in the future, it is further
planned that another 220/132 kV, 2x250 MVA GS will be introduced at Colombo Port where
major part of the expected future demand of Colombo City is concentrated. Moreover, it is
proposed to connect Kerawalapitiya and Kelanitissa Power Plants to the proposed Port GS
to enhance the reliability of the Colombo City supply. Figure 3.2-2 shows the planned cable
line route under the project.
Chapter 3 Transmission Line Projects
3 - 3
(Source: Google earth Pro)
Figure 3.2-2 Location of Colombo City Transmission Development
(2) Scope of the Project
Major scope of the project is as follows;
1) Construction of Port 220/132/33 kV GS
- 2x250 MVA, 220/132/33 kV main tie-transformers
- 2x220 kV double busbar transformer bay
- 2x220 kV indoor single busbar cable bay
- 1x220 kV bus section bay
- 2x132 kV indoor double busbar cable bay
- 2x132 kV double busbar transformer bay
- 1x132 kV bus coupler bay
- 2x33 kV transformer bay
- 1x33 kV indoor bus section bay with single busbar arrangement
2) Construction of Colombo L (Port) GS
- 4x31.5 MVA, 132/11 kV main transformers
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- 4x132 kV indoor single busbar transformer bays
- 4x11 kV indoor single busbar transformer bays
- 18x11 kV indoor cable bays
- 1 x 11 kV indoor bus section bays with single busbar arrangement
3) Construction of Colombo M (Slave Island) GS
- 3x31.5 MVA, 132/11 kV main transformers
- 3x132 kV indoor single busbar transformer bays
- 3x11 kV indoor single busbar transformer bays
- 18x 11 kV indoor cable bays
- 2x 132 kV single busbar indoor cable bays
- 1x 132 kV indoor bus section bay with single busbar arrangement
- 2X11 kV indoor bus section bays with single busbar arrangement
4) Construction of Colombo N (Hunupitiya) GS
- 2x31.5 MVA, 132/11kV main transformers
- 2x132 kV indoor single busbar transformer bays
- 2x11 kV indoor single busbar transformer bays
- 12x 11 kV indoor cable bays
- 2x 132 kV single busbar indoor cable bays
- 1x 132kV indoor bus section bay with single busbar arrangement
- 1 x 11 kV indoor bus section bays with single busbar arrangement
5) Augmentation of Colombo A GS
- 1x31.5 MVA, 132/11kV main transformer
- 1x132 kV indoor single busbar transformer bays
- 1x11 kV indoor single busbar transformer bays
- 6x 11 kV indoor cable bays
- 1x 132kV indoor bus section bay with single busbar arrangement
- 1 x 11 kV indoor bus section bays with single busbar arrangement
6) Augmentation of Colombo I GS
- 1x31.5 MVA, 132/11kV main transformer
- 1x132 kV indoor single busbar transformer bays
- 1x11 kV indoor single busbar transformer bays
- 6x 11 kV indoor cable bays
- 1x 132kV indoor bus section bay with single busbar arrangement
- 1 x 11 kV indoor bus section bays with single busbar arrangement
7) Construction of underground cable
- 220 kV, Cu (XLPE) 1,200 mm2, 6 km cable between Kelenitissa and Port GSs
- 220 kV, Cu (XLPE) 1,200 mm2, 12 km cable between Kerawalapitiya and Port GSs
Chapter 3 Transmission Line Projects
3 - 5
- 132 kV, Cu (XLPE) 1,200 mm2, 1 km cable between Port and Colombo F GSs
- 132 kV, Cu (XLPE) 800 mm2, 1 km cable between Colombo F and Colombo M GSs
- Construct 132 kV, Cu (XLPE) 800 mm2, 1.5 km cable between Colombo M and
Colombo N GSs
- 132 kV, Cu (XLPE) 1,200 mm2, 5 km cable between Colombo N and Kolonnawa
GSs
- 132 kV, Cu (XLPE) 1,200 mm2, 3 km cable between Port and Colombo E GSs
(3) Estimated Base Cost
CEB has preliminary estimated the project cost using the standard unit prices quoted by the
previous projects as shown in Table 3.2-1. The estimated total project cost (base cost) is
LKR 12,250.3 million (Foreign Currency: FC) and LKR 1,547.2 million (Local Currency: LC).
Table 3.2-1 Cost of Colombo City Transmission Development Project
Sub-projects Total Cost (MLKR) FC LC 1) Construction of Port 220/132 kV GS 1,695.5 198.1 2) Construction of Colombo L (Port) GS 1,027.0 222.5 3) Construction of Colombo M (Slave Island) GS 1,044.8 142.7 4) Construction of Colombo N (Hunupitiya) GS 817.0 127.0 5) Augmentation of Colombo A 261.1 37.6 6) Augmentation of Colombo I 261.1 37.6 7) Additional cable bays of Kerawalapitiya and Kelenitissa 178.5 8.4 8) Cable between Kelenitissa and Port 1,685.0 187.0 9) Cable between Kerawalapitiya and Port 3,370.0 374.0 10) Cable between Port and Kolonnawa via F-M and N 1,383.8 153.8 11) Cable between Port and E 526.5 58.5 Total 12,250.3 1,547.2 Total (FC+LC) 13,797.5
(Source: Colombo City Transmission Development Proposal, CEB Transmission Planning)
(4) Effect of Transmission Loss Reduction studied by CEB
CEB has calculated loss reduction values on assumptions that load of the proposed GSs
(Colombo L, M and N) were transferred to the existing GSs (Colombo E, F, B, C and
Kelenitissa) by 2015 and by 2020 in the case without the project. Loads considered for
Colombo B, C, E, F and Kelenitissa GSs in the case without the project are shown in Table
3.2-2.
Table 3.2-2 Load Conditions for Loss Reduction Calculation
2015 2020 GSs MW MVar MW MVar
Colombo B 25.4 15.8 91.0 56.2 Colombo C 24.4 15.1 70.6 43.7 Colombo E 81.4 48.9 83.5 47.8 Colombo F 84.3 48.9 76.5 42.3 Kelanitissa 24.2 14.8 99.2 56.8
(Source: CEB Transmission Planning)
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Table 3.2-3 shows the energy loss savings from the project calculated by CEB.
Table 3.2-3 Energy Loss Savings by PJT-1
Unit 2015 2020
Transmission losses with project MW 41.41 78.98
Transmission losses without project MW 43.87 83.26
Loss savings MW 2.46 4.28
Loss load factor 0.408 0.408
Energy loss saving per year GWh/year 8.8 15.3
(Source: CEB Transmission Planning)
3.2.2 Construction of Kappalthurai GS (PJT-2)
(1) Objective
At present, the capacity of the Trincomalee GS is 63 MVA. According to the demand
forecast, Trincomalee GS shall be augmented to 94.5 MVA by 2013 and to 126 MVA by 2020.
However, it is difficult to augment the existing GS due to the limitation of space.
Therefore, in order to meet the growing demand in Nilaweli and Kappalthurai areas and the
proposed Kappalthurai special economic zone, it is proposed to construct a new GS at
Kappalthurai with two 31.5 MVA transformers and eight 33 kV feeders in 2014 to relieve the
loading of Trincomalee GS. The proposed GSs will also improve the voltage profile of 33
kV distribution systems and therefore improve the quality of supply in and around the areas.
This new GS is proposed to connect to the existing New Anuradhapura-Trincomalee 132 kV
line using double in and out connection as shown in Figure 3.2-3.
New Anuradhapura
Vavunia
To Anuradhapura
Kilinochchi
Chemmuni
Chunnakkam
Mannar
Kappalthurai
Trincomalee
3 ×31.5MVA
1×31.5MVA
16 MW Wind
2×31.5 MW
2×31.5 MW
3×31.5 MW
30 MVar
29 MW Wind
D10 MW
2×31.5 MVA
2×31.5 MVA
2×30 MVA 3×150 MVA
To Puttalam Coal
To Kotmale
Legend
220 kV Line
132 kV Line
Project Scope
To Puttalam
(Prepared by the Survey Team)
Figure 3.2-3 Transmission Network around Kappalthurai GS
Chapter 3 Transmission Line Projects
3 - 7
(2) Scope of the Project
1) Construction of Kappalthurai GS
- 2×31.5 MVA 132/33 kV transformers
- 4×132 kV double busbar transmission line bays
- 2×132 kV double busbar transformer bays
- 1×132 kV double busbar arrangement with bus coupler
- 2×33 kV transformer bays
- 8×33 kV feeder bays
- 1×33 kV single bus bar including bus section
2) Double in and out connection to Kappalthurai GS from New Anuradhapura –
Trincomalee 132 kV TL (2 cct., 1.0 km, Zebra)
3) Provision for 2×132 kV double busbar transmission line bays to connect Kilinochchi-
Kappalthurai 132 kV TL
4) Provision for development of a 220/132 kV substation at Kappalthurai with Stage II of
the Trincomalee Coal Power Plant Project.
(3) Estimated Base Cost
Table 3.2-4 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 767.7 million (FC) and LKR 169.6 million (LC).
Table 3.2-4 Cost of Kappalthurai 132/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Kappalthurai 132/33 kV GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 2 sets 71.8 8.8 143.6 17.6 132 kV double busbar transformer bay 2 sets 28.0 5.1 56.0 10.1 132 kV line bay double busbar 4 sets 24.5 5.2 98.1 20.8 132 kV double busbar arrangement with bus coupler 1 sets 42.6 3.9 42.6 3.9 33 kV transformer bay 2 sets 13.3 0.1 26.5 0.3 33 kV feeder bay 8 sets 12.8 0.1 102.3 0.9 33 kV single busbar incl. bus section 1 set 14.4 0.1 14.4 0.1 Common items for 2×31.5 MVA 132/33 kV grid 1 set 156.6 86.6 156.6 86.6 Substation Automation for GS 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 47.4 9.3
Total 734.8 150.6 2) Construction of double in & out connection 132 kV, 2 cct Zebra 2 km 16.5 9.5 32.9 19.0 Total 1)~2) 767.7 169.6
Total (FC+LC) 937.2
(Source: CEB Transmission Planning)
3.2.3 Construction of Kerawalapitiya GS (PJT-3)
(1) Objective
At present, the electricity demand in the Wattala, Handala and Kerawalapitiya areas is 81
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GWh in total and the estimated load growth is 7 %. These areas are mainly fed by
Kotugoda GS. Considering the load demand forecast in the 33 kV distribution systems in
these areas, the loading of Kotugoda GS will be 90 % in 2011 and also 181 % under outage
of one transformer. Furthermore Kotugoda GS is expected to reach 126 % load under
outage of a 60 MVA transformer by 2017 even after the expansion of the GS in 2012.
Since Kotugoda GS is located at a highly industrialized area, it has to be able to cater to the
demand under outage of one unit. Therefore, it is proposed to construct a new GS at
Kerawalapitiya with 2x35 MVA transformers and eight 33 kV feeders in terms of improving
reliability of the regional distribution system and meeting the growing demand in 2014.
(2) Scope of the Project
1) Construction of Kerawalapitiya GS
- 2×35 MVA 220/33kV transformers
- 2×33 kV GIS transformer bays
- 8×33 kV GIS feeder bays
- 1×33 kV GIS single busbar arrangement including bus section
2) Installation of 20 MVar (4×5 MVar) breaker switched capacitor banks at 33 kV busbar
(3) Estimated Base Cost
Table 3.2-5 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 801.1 million (FC) and LKR 148.2 million (LC).
Table 3.2-5 Cost of Kerawalapitiya 220/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR)
1) Construction of Kerawalapitiya 220/33 kV GS FC LC FC LC
Transformers 220/33 kV, 35 MVA & E.Tr. & Aux.Tr 2 sets 162.5 20.0 325.0 39.9
33 kV transformer bay (indoor) 2 sets 15.7 0.1 31.5 0.3
33 kV feeder bay 8 sets 12.8 0.1 102.3 0.9
33 kV single busbar arrangement incl.bus section (indoor) 1 set 14.41 0.13 14.4 0.1
Common items for 220/33kV grid 1 set 157.4 90.9 157.4 90.9
Substation Automation for GS 1 set 46.6 0.5 46.6 0.5
Spare parts (7 %) 1 lot 47.4 9.3
Total 724.5 141.9
2) Installation of 20 MVar breaker switched capacitors at Kerawalapitiya 4 sets 19.1 1.6 76.6 6.3
Total 1)~2) 801.1 148.2
Total (FC+LC) 949.3
(Source: CEB Transmission Planning)
Chapter 3 Transmission Line Projects
3 - 9
3.2.4 Reconstruction of Kiribathkumbura 132/33 kV GS (PJT-4)
(1) Objective
Kiribathkumbura GS commissioned in 1986 was the first 33 kV GIS substation of CEB. In
2003, the substation was expanded by adding a third 31.5 MVA transformer and 4x5 MVar
capacitor banks. At present, 3x31.5 MVA Kiribathkumbura GS feeds electric power to many
important government and commercial establishments in the Kandy area. According to
statistical data, the anticipated load growth rate of the area is 5.0 %.
It is reported that all 132 kV bays of the substation have operational problems, except for
No.1 of Kurunegala line bay, No.2 of Ukuwela line bay and No.3 of the transformer bay.
The number of operations of 33 kV switchgears has exceeded the recommended 10,000
operations. In addition, 11 units of 33 kV GIS switchgear have already exceeded their
service life of 25 years which is 2.5 times of the recommended service life (10 years).
Hence, these switchgear units need overhauling according to the operation and maintenance
(O&M) manual. Furthermore, the price quoted by the manufacturer for inspection and
overhauling was excessive according to the O&M Branch of the CEB Transmission Division.
In addition, the existing protection system which comprises electromagnetic type of relays
has many operational problems. Furthermore, aging equipment and unavailability of spare
parts have caused the low reliability of Kiribathkumbura GS.
After an assessment of the condition, the Asset Management Branch of the Transmission
Division has recommended the rehabilitation of Kiribathkumbura GS. Therefore, it is
proposed to rehabilitate Kiribathkumbura GS in order to improve the quality and reliability of
the electricity supply.
(2) Scope of the Project
1) Reconstruction of Kiribathkumbura 132/33 kV GS
- Installation of 1×31.5 MVA 132/11 kV main transformer
- Installation of 3×132 kV S/B transformer bays
- Installation of 4×132 kV S/B transmission line bays
- Installation of 1×132 kV S/B bus section bays
- Installation of 4×33 kV transformer bays
- Installation of 12×33 kV line feeder bays
- Installation of 4×generator feeder bays
- Installation of 2×33 kV capacitor bank bays
- Installation of 1×33 kV bus coupler bays
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(3) Estimated Base Cost
Table 3.2-6 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 782.2 million (FC) and LKR 91.1 million (LC).
Table 3.2-6 Cost of Kiribathkumbura GS Reconstruction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) FC LC FC LC
1) Transformers / 132/33 kV /31.5 MVA & E.Tr & Aux Tr 1 set 71.8 8.8 71.8 8.8 2) 132 kV S/B transformer bay 3 sets 25.6 4.5 76.7 13.6 3) 132 KV S/B Line bay 4 sets 23.7 4.7 94.8 18.7 4) 132 kV S/B inc. Bus section bay 1 set 23.4 3.6 23.4 3.6 5) 132 kV protection and control panels for line bays 2 sets 8.6 0.1 17.1 0.1 6) 132 kV protection and control panels for transformer bays 1 set 7.4 0.2 7.4 0.2 7) 33 kV transformer bay 4 sets 15.7 0.1 63.0 0.6 8) 33 kV feeder bay 14 sets 12.8 0.1 179.0 1.5 9) 33 kV generator bays 4 sets 14.9 0.1 59.5 0.5 10 )33 kV Bus coupler bay including double bas bar arrangement 1 set 14.4 0.1 14.4 0.1 11) Common items for 132/33 kV grid 1 set 77.3 36.9 77.3 36.9 12) Substation Automation 1 set 46.6 0.5 46.6 0.5 13) Spare parts (7 %) 1 lot 51.2 6.0
Total 1)~13) 782.2 91.1 Grand Total 873.3
(Source: CEB Transmission Planning)
3.2.5 Construction of Veyangoda – Kirindiwela - Padukka 220 kV TL (PJT-5)
(1) Objective
In the future, the electric power generated at Puttalam and Trincomalee Coal Power Plants
(CPPs) will be delivered to the Veyangoda GS in the Western Province. In order to make
possible for power to be received at Veyangoda GS, new transmission lines and substations
need to be developed.
Figure 3.2-4 Planned Transmission Network around Kirindiwela GS
Veyangoda – Padukka 220kV Transmission line Project
Thulhiriya
Kirindiwela
Padukka
Kolonnawa
Aturugiria
KosgamaSeethawake
Polpitiya
Polpitia PS
Biyagama
Legend
Discontinued
New Lines 132kV
New Lines 220kV
132 kV GSS
220 kV GSS
Veyangoda
Construction of Kirindiwela 220/132 kV GS with Related 132/33 kV GS, and Kirindiwela - Kosgama 132 kV TL (Prepared by the Survey Team)
Chapter 3 Transmission Line Projects
3 - 11
In the proposed project, a Switching Station (SwS) at Kirindiwela is to be constructed under
the Kotmale-Biyagama 220 kV transmission line. Veyangoda, Padukka, Kotmale and
Biyagama GSs are to be connected to Kirindiwela SwS. In the future transmission system,
Kirindiwela SwS would be the power receiving station generated at Mahaweli Complex
whereas Padukka GS would be the power receiving station for that generated at Laxapana
Complex. New lines will be constructed from Veyangoda to Padukka via Kirindiwela
connecting three stations as shown in Figure 3.2-4. This arrangement will enhance the
power supply capacity to the Colombo area and will improve system reliability.
(2) Scope of the Project
1) Construction of Kirindiwela 220/132 kV GS
- 2×150 MVA 220/132 kV tie-transformers
- 1×220 kV double busbar arrangement including bus coupler
- 2×220 kV double busbar transformer bays
- 8×220 kV double busbar transmission line bays
- 2×31.5 MVA 132/33 kV transformers
- 4×132 kV single busbar transformer bays
- 1×33 kV single busbar arrangement including bus section
- 2×33 kV single busbar transformer bays
- 8×33 kV feeder bays
2) Installation of 10 MVar at 33 kV busbar
- Installation of 10 MVar (2x5 MVar) breaker switched capacitors at 33 kV busbar
3) Construction of Kirindiwela - Kosgama 132 kV TL
- Construction of 132 kV Kirindiwela - Kosgama Zebra, 10 km, double-circuit TL
- Kosgama GS: 2x 132 kV TL bays with single busbar arrangement
4) Construction of Veyangoda - Kirindiwela - Padukka 220 kV TL
- Construction of 220 kV Veyangoda - Kirindiwela 2xZebra, 17.5 km, double-circuit TL
- Construction of 220 kV Kirindiwela - Padukka 2xZebra, 20 km, double-circuit TL
- Veyangoda GS: 2x220 kV double busbar TL bays
- Padukka GS: 2x220 kV double busbar TL bays
- Double in & out connection from Biyagama – Kotmale 220 kV TL
(3) Estimated Base Cost
Table 3.2-7 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 3,487.7 million (FC) and LKR 953.0 million
(LC).
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Table 3.2-7 Cost of Veyangoda – Kirindiwela - Padukka 220 kV TL Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Kirindiwela 220/132/33 kV GS FC LC FC LC Transformers 220/132 kV, 150 MVA & E.Tr. 2 sets 154.5 11.1 308.9 22.2 Transformers 132/33 kV 2×31.5 MVA 2 sets 70.5 7.9 141.0 15.8 132 kV single busbar Transformer bay 4 sets 25.6 4.5 102.4 18.0 220 kV double busbar transformer bay 2 sets 42.1 4.4 84.1 8.8 132 kV single busbar line bay 2 sets 23.7 4.7 47.4 9.4 220 kV double busbar line bay 8 sets 53.8 4.3 430.6 34.6 132 kV single busbar arrangement inc. bus section 1 set 38.4 3.6 38.4 3.6 220 kV double busbar arrangement inc. bus coupler 1 set 55.7 4.3 55.7 4.3 33 kV single busbar transformer bay 2 sets 13.3 0.1 26.5 0.3 33 kV single busbar feeder bay 8 sets 12.8 0.1 102.3 0.9 33 kV bus section bay including BB 1 set 14.4 0.1 14.4 0.1 Common items for 220/132 kV GS 1 set 212.9 119.5 212.9 119.5 Substation automation for GS 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 112.8 16.7
Sub-total 1,724.0 254.7 2) 10 MVar at Kirindiwela 33 kV BB 5 MVar including. BSC bay 2 sets 19.1 1.6 38.3 3.2 3) Kirindiwela – Kosgama 132 kV TL 132 kV Zebra 2 cct. 10 km 16.5 9.5 164.6 94.8 Kosgama GS 132 kV single busbar line bay 2 sets 23.7 4.7 47.4 9.4 Kosgama GS 132 kV single busbar arrangement 1 lot 38.4 3.6 38.4 3.6 Sub-total 85.8 13.0 4) Veyangoda - Kirindiwela - Padukka 220 kV TL Veyangoda - Kirindiwela 220 kV TL 2×Zebra 2 cct. 17.5 km 32.7 14.8 572.9 259.3 Kirindiwela – Padukka 220 kV TL, 2×Zebra 2 cct. 20 km 32.7 14.8 654.0 296.0 220 kV D/B line bay in Veyangoda GS 2 sets 53.8 4.3 107.7 8.6 220 kV D/B line bay in Padukka GS 2 sets 53.8 4.3 107.7 8.6 Double in & out connection from Biyagama–Kotmale 1.0 km 32.7 14.8 32.7 14.8 Sub-total 1,475.0 587.3 Total 1)~4) 3,487.7 953.0
Total (FC+LC) 4,440.7
(Source: CEB Transmission Planning)
(4) Effect of Loss Reduction studied by CEB
Energy losses are reduced through implementation of the project. Transmission losses in
year 2015 under two generation scenarios; hydro maximum and thermal maximum and two
load scenarios; day peak and night peak without the lines and with lines are tabulated in
Table 3.2-8.
Table 3.2-8 Loss Reduction Calculation of PJT-5 by CEB
Transmission Losses (MW) Scenarios Night Thermal Night Hydro Day Thermal Day Hydro
Without Veyangoda - Kirindiwela- Padukka 220 kV TL 73.29 68.33 40.80 40.98
With Veyangoda - Kirindiwela- Padukka 220 kV TL 72.28 67.80 38.81 40.79
Loss Reduction Value (MW) 1.01 0.53 1.99 0.19
Loss Reduction Ratio (%) 1.4 0.8 4.9 0.5
(Source: CEB Transmission Planning)
Chapter 3 Transmission Line Projects
3 - 13
The result shows that the line loss reduction ratio, which could be brought about by the
construction of the transmission line, will approximately be 4.9 % in the Day Thermal case at
the highest value.
3.2.6 Construction of Chemmuni GS (PJT-6)
(1) Objective
Since the Jaffna Peninsula is presently isolated from the national grid, electric power to
Jaffna Peninsula is supplied by CEB and privately owned generators. Due to the
inadequacy of the present generation, power supply in Jaffna is partly interrupted during the
peak hours. To overcome this situation, a new 2x31.5 MVA 132/33 kV GS at Chunnakam
and a 67 km, 132 kV transmission line from Kilinochchi to Chunnakam are under
construction.
The objective of this project is to meet the growing electricity demand in Vaddukkodda,
Chavakachcheriya, Kankasanthurai, Point Pedro and Jaffna areas by providing quality and
reliable supplies and to connect the proposed Chemmuni GS to the national grid as shown in
Figure 3.2-5.
New Anuradhapura
Vavunia
Kilinochchi
Chemmuni
Chunnakkam
Mannar
Kappalthurai
Trincomalee
3 ×31.5MVA
1×31.5MVA
16 MW Wind
2×31.5 MVA
2×31.5 MVA
3×31.5 MVA
30 MVar
29 MW Wind
D10 MW
2×31.5 MVA
2×31.5 MVA
2×30 MVA 3×150 MVA
To Puttalam Coal
To Kotmale
Legend
220 kV Line
132 kV Line
Project Scope
To Puttalam
To Anuradhapura
(Prepared by the Survey Team)
Figure 3.2-5 Transmission Network around Chemmuni GS
(2) Scope of the Project
1) Construction of Chemmuni GS
- 2×31.5 MVA 132/33 kV transformers
- 2×132 kV single busbar transformer bays
- 2×132 kV single busbar transmission line bay
- 1×132 kV busbar including a bus section bay
- 2×33 kV transformer bay
- 8×33 kV feeder bays
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
3 - 14
- 1×33 kV busbar including a bus section bay
2) Construction of 10 km 2 cct 132 kV TL with Zebra conductor as a single in and out
connection from Kilinochchi – Chunnakam TL
(3) Estimated Base Cost
Table 3.2-9 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 836.2 million (FC) and LKR 236.4 million (LC).
Table 3.2-9 Cost of Chemmuni GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Chemmuni 132/33 kV GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 2 sets 71.8 8.8 143.6 17.6 132 kV single busbar transformer bay 2 sets 25.6 4.5 51.1 9.0 132 kV single busbar line bay 2 sets 23.7 4.7 47.4 9.4 132 kV single busbar inc. bus section bay 1 set 38.4 3.6 38.4 3.6 33 kV transformer bay 2 sets 13.3 0.1 26.5 0.3 33 kV feeder bay 8 sets 12.8 0.1 102.3 0.9 33 kV bus section bay including BB 1 set 14.41 0.13 14.4 0.1 Common items for 132/33 kV grid 1 set 157.4 90.9 157.4 90.9 Substation automation for GS 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 43.9 9.3
Total 671.6 141.6 2) Single in & out connection from Kilinochchi – Chunnakam 132 kV, Zebra 2 cct. 10 km 16.5 9.5 164.6 94.8 Total 1)~2) 836.2 236.4
Total (FC+LC) 1,072.6
(Source: CEB Transmission Planning)
3.2.7 Construction of Kalutara GS (PJT-7)
(1) Objective
Kalutara area is mainly fed by Panadura and Matugama GSs with long distance 33 kV
distribution lines, which cause high distribution losses. According to the demand forecast,
the loading of Panadura GS will be 90 % in 2014 and also 128 % under outage of one
transformer. Panadura GS will be overloaded by 2016 even after the expansion of the GS.
On the other hand, the loading of Matugama GS will be 94 % in 2014 and also 134 % under
outage of one transformer and it will be further overloaded by 2016. In order to meet the
growing electricity demand while minimizing distribution losses and relieve loading of
Panadura and Matugama GSs, it is proposed to construct a new GS at Kalutara with two
31.5 MVA transformers and eight 33 kV feeders.
Proposed GSs will improve the voltage profile of the 33 kV distribution system and reduce
distribution losses and therefore improve the quality of supply in and around the Kalutara
areas. This new GS is proposed to connect to the existing Pannipitiya – Matugama 132 kV
Chapter 3 Transmission Line Projects
3 - 15
TL using single in and out connection as shown in Figure 3.2-6. This project will reduce
losses, improve the reliability of the system and meet the growing demand in the area.
Pannipitiya
To Koronawa
Matugama
To Kukule
To Ambalangoda
To Dehiwala
To Ratmarana
2×31.5 MVAKalutara 3×31.5
MVA
MH4.2 MW
20 MVar
Panadura
3×31.5 MVA
20 MVar
3×31.5 MW
3×250MVA
3×60MVA
To Biyagama
To Padukka
4×5 MW 32
MVA
3×31.5 MVA
Horana
Legend220 kV Line
132 kV Line
Project Scope
(Prepared by the Survey Team)
Figure 3.2-6 Transmission Network around Kalutara GS
(2) Scope of the Project
1) Construction of Kalutara GS
- 2×31.5 MVA 132/33 kV transformers
- 2×132 kV single busbar transformer bays
- 2×132 kV single busbar transmission line bays
- 1×132 kV single busbar including bus section
- 2×33 kV transformer bays
- 8×33 kV feeder bays
- 1×33 kV single bus bar including bus section
2) Construction of 132 kV single in and out connection from Pannipitiya – Matugama 132
kV TL to connect Kalutara GS (2 cct., 6 km, Zebra)
(3) Estimated Base Cost
Table 3.2-10 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 769.6 million (FC) and LKR 193.9 million (LC).
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
3 - 16
Table 3.2-10 Cost of Kalutara 132/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Kalutara GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 2 sets 71.8 8.8 143.6 17.6 132 kV single busbar transformer bay 2 sets 25.6 4.5 51.1 9.0 132 kV line bay single busbar 2 sets 23.7 4.7 47.4 9.4 132 kV bus section bay inc.S/S 1 sets 38.4 3.6 38.4 3.6 33 kV transformer bay 2 sets 13.3 0.1 26.5 0.3 33 kV feeder bay 8 sets 12.8 0.1 102.3 0.9 33 kV bus section bay incl. BB 1 sets 14.4 0.1 14.4 0.1 Common items for 2×31.5 MVA 132/33 kV grid 1 set 156.6 86.6 156.6 86.6 Substation Automation for GS 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 43.9 9.0
Total 670.8 137.0 2) Construction of single in & out connection from Pannipitiya – Mathugama TL 132kV, Zebra 2 cct. 6 km 16.5 9.5 98.8 56.9
Total 1)~2) 769.5 193.9 Total (FC+LC) 963.4
(Source: CEB Transmission Planning)
3.2.8 Construction of Battaramulla GS (PJT-8)
(1) Objective
At present Sri Jayawardhanepura Kotte demand, which is approximately 50 MVA, is mainly
fed from Sri Jayawardhanepura 132/33 kV GS. There is a future development plan around
the Battaramulla area. CEB has projected the required demand for the development plan
as 114 MW in 2025. As a result of the study for the development, CEB has proposed to
implement augmentation of the existing Sri Jayawardhanepura GS and the construction of a
new Battaramulla GS in the vicinity of the existing GS. The capacity of Sri
Jayawardhanepura GS is to be increased to 94.5 MVA. In the meantime, the capacity of
the new Battaramulla GS is to be planed as 63 MVA. These capacities can meet the rapidly
increasing demand by 2017.
Sri Jayawardhanepura GS is presently fed from Kolonnawa - Pannipitiya 132 kV Lynx line by
double “T” connection. Since Battaramulla GS is proposed in the same area, it can be
connected to the same line by opening the existing connection as shown in Figure 3.2-7.
Legend
132 kV Line
Project ScopeBattaramulla Sri Jayawardhanapura
6 km, Lynx 6.9 km, Lynx
Pannipitiya
3×31.5 MVA
2×31.5 MVA
Kolonnawa 1km, Zebra
Figure 3.2-7 Transmission Network around Battaramulla GS
(Prepared by the Survey Team)
Chapter 3 Transmission Line Projects
3 - 17
(2) Scope of the Project
1) Construction of Battaramulla GS
- 2×31.5 MVA 132/33 kV transformers
- 2×132 kV indoor single busbar transformer bays
- 1×132 kV bus section with single busbar arrangement
- 2×33 kV indoor single busbar transformer bays
- 8×33 kV indoor cable bays
- 1×33 kV indoor bus section bays with single busbar arrangement
2) Construction of 132 kV, Zebra connection to existing Kolonnawa – Panipitiya line
(3) Estimated Base Cost
Table 3.2-11 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 865.3 million (FC) and LKR 154.4 million
(LC).
Table 3.2-11 Cost of Battaramulla 132/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Battaramulla GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 2 sets 71.8 8.8 143.6 17.6 132 kV single busbar transformer bay (GIS) 2 sets 52.8 1.3 105.6 2.7 132 kV line bay (GIS) 2 sets 53.1 1.5 106.3 2.9 132 kV single busbar (including bus section) (GIS) 1 set 54.9 1.7 54.9 1.7 33 kV transformer bay 2 sets 15.7 0.1 31.5 0.3 33 kV bus section bay incl. BB (GIS) 1 set 14.4 0.1 14.4 0.1 33 kV feeder bay (GIS) 8 sets 12.8 0.1 102.3 0.9 Common items for 132/33 kV grid 1 set 157.4 90.9 157.4 90.9 Substation Automation 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 53.4 8.2
Total 815.9 125.9 2) Construction of Battaramulla – Kolonnawa TL 132kV, Zebra 2 cct. 3 km 16.5 9.5 49.4 28.5 Total 1)~2) 865.3 154.4
Total (FC+LC) 1,019.7
(Source: CEB Transmission Planning)
3.2.9 Reconstruction of Old Anuradhapura GS (PJT-9)
(1) Objective
Old Anuradhapura GS is situated in the North Central Province. Annual energy demand of
the GS is 138 GWh and the estimated load growth is 4.7%. At present, Old Anuradhapura
GS feeds power to Nochchiyagama, Periyankulama, Horowpathana, Medawachchiya and
Mihintale areas and some parts of the Vavuniya area.
Old Anuradhapura GS consists of 2x10 MVA transformers which were commissioned in 1969
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
3 - 18
and 1975, and a 31.5 MVA transformer which was commissioned in 1996. At present, Old
Anuradhapura GS is connected to New Anuradhapura, Habarana and Puttalam GSs with
132 kV double circuit transmission lines. No rehabilitation or any augmentation work has
been carried out at this GS since 1996.
It is reported that Old Anuradhapura GS has many operational problems. Almost all of the
equipment in the GS is now 40 years old and spare parts are not available. After a
complete condition assessment, the Asset Management Branch and the Operation &
Maintenance Branch of the Transmission Division of CEB have recommended to augment
Old Anuradhapura GS.
Furthermore, it has been planned to transfer connections of Puttalam and Habarana 132 kV
transmission lines to New Anuradhapura GS and to rearrange Old Anuradhapura GS.
Hence, in the future, Old Anuradhapura GS will be fed from New Anuradhapura GS by 132
kV double circuit transmission line. Further, to cater the increasing demand in and around
Anuradhapura City it has been decided to augment Old Anuradhapura GS with 2x45 MVA
transformers.
Therefore, it is proposed to augment Old Anuradhapura GS in order to ensure the quality
and reliability of the electricity supply and to cater the growing demand.
Legend
220 kV Line
132 kV Line
Project Scope
New Anuradhapura
Old Anuradhapura
To Vavunia
2×30 MVA 3×150 MVA
To Puttalam Coal
To Kotmale
To Puttalam
2×45 MVA
(Prepared by the Survey Team)
Figure 3.2-8 Transmission Network around Old Anuradhapura GS
(2) Scope of the Project
1) Augmentation of Old Anuradhapura GS
- 2×45 MVA 132/33 kV transformers
- 2×33 kV GIS transformer bays
- 6×33 kV GIS feeder bays
- 2×33 kV GIS generator bays
- 1×33 kV GIS SB arrangement including bus section
2) Augmentation of New Anuradhapura 220/132/33 kV GS
- 4×132 kV double bus transmission line bays
Chapter 3 Transmission Line Projects
3 - 19
(3) Estimated Base Cost
Table 3.2-12 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 698.9 million (FC) and LKR 147.0 million (LC).
Table 3.2-12 Cost of Old Anuradhapura 132/33 kV GS Reconstruction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Reconstruction of Anuradhapura GS FC LC FC LC Transformers 132/33 kV, 45 MVA & E.Tr. & Aux.Tr 2 sets 102.6 12.6 205.1 25.2 33 kV transformer bay (GIS) 2 sets 15.7 0.1 31.5 0.3 33 kV feeder bay (GIS) 6 sets 12.8 0.1 76.7 0.7 33 kV generator bay(GIS) 2 sets 14.9 0.1 29.8 0.3 33 kV bus section bay incl. BB (GIS) 1 set 14.4 0.13 14.4 0.1 Common items for 132/33 kV grid 1 set 157.4 90.9 157.4 90.9 Substation Automation 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 39.3.4 8.3
Total 600.7 126.2 2) Augmentation of New Anuradhapura 220/132/33 kV GS 132kV, D/B line bay 4 sets 24.5 5.2 98.1 20.8 Total 1)~2) 698.8 147 Total (FC+LC) 845.8
(Source: CEB Transmission Planning)
3.2.10 Construction of Nawalapitiya GS (PJT-10)
(1) Objective
In Sri Lanka, there is a policy target of obtaining 20% of energy from non conventional
renewable energy resources by 2020. In this context, mini-hydro power plants play a key
role. A large part of mini-hydro potential of Sri Lanka exists in the Central Hills and a large
number of mini-hydro projects have been identified in Nawalapitiya, Kotmale, Galaha and
Ginigathhena areas. However, the GSs existing in the area; Nuwara Eliya and
Wimalasurendra are unable to send power from any new projects because the GS capacities
have already been exceeded. Therefore, the requirement of a GS at Nawalapitiya is urgent
and important to accommodate new mini-hydro power plants.
At present, Nawalapitiya area is fed from Kiribathkumbura GS which is approximately 30 km
away. To meet the increasing demand, Nawalapitiya GS is required to be constructed by
2017. This will relieve the loading in Kiribathkumbura GS and high losses in the distribution
network. Nawalapitiya GS will also improve the voltage profile of the 33 kV distribution
system in and around Nawalapitiya area and thereby improve the quality of supply in the
area.
Hence, the construction of Nawalapitiya GS is important in order to accommodate renewable
energy, to meet the growing demand, and to improve the quality of supply in and around
Nawalapitiya area.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
3 - 20
Nawalapitiya
10 MW2×31.5 MVA
To Kiribathkumbura
To Polpitiya
Legend
132 kV Line
Project Scope
(Prepared by the Survey Team)
Figure 3.2-9 Transmission Network around Nawalapitiya GS
(2) Scope of the Project
1) Construction of Nawalapitiya GS
- 2×31.5 MVA 132/33 kV transformers
- 2×132 kV single busbar transformer bays
- 2×132 kV single busbar transmission line bays
- 1×132 kV busbar including a bus section bay
- 2×33 kV transformer bay
- 8×33kV feeder bays
- 1×33kV busbar including a bus section bay
2) Construction of single in and out transmission connection from 132 kV Polpitiya –
Kiribathkumbura TL (4 km, 2 cct., Zebra)
(3) Estimated Base Cost
Table 3.2-13 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 736.6 million (FC) and LKR 175.0 million (LC).
Table 3.2-13 Cost of Nawalapitiya 132/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Nawalapitiya GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 2 sets 71.80 8.82 143.60 17.64 132 kV single busbar transformer bay 2 sets 25.56 4.52 51.12 9.04 132 kV line bay 2 sets 23.70 4.69 47.41 9.37 132 kV single busbar (including bus section) 1 set 38.38 3.65 38.38 3.65 33 kV transformer bay 2 sets 13.25 0.13 26.51 0.25 33 kV bus section bay incl. BB 1 set 14.41 0.13 14.41 0.13 33 kV feeder bay 8 sets 12.79 0.11 102.31 0.87 Common items for 132/33 kV grid 1 set 156.57 86.57 156.57 86.57 Substation Automation 1 set 46.56 0.5 46.56 0.51 Spare parts (7 %) 1 lot 43.88 8.96
Total 670.8 137.0 2) Single in and out connection from Polpitiya – Kiribathkumbura TL 132kV, Zebra double cct. 4 km 16.5 9.5 65.9 37.9 Total 1)~2) 736.6 175.0 Total (FC+LC) 911.6
(Source: CEB Transmission Planning)
Chapter 3 Transmission Line Projects
3 - 21
3.2.11 Construction of Wewalwatta GS (PJT-11)
(1) Objective
There is a large potential of mini-hydro capacity that can be harnessed in and around the
Balangoda and Ratnapura areas. At present existing Ratnapura and Balangoda GSs are
both being augmented to 3 x 31.5 MVA so as to send capacity of 150 MW generated by mini-
hydro which can be harnessed around the area.
According to information provided by CEB, Ratnapura and Balangoda GSs will exceed their
allowable connection capacity by 2016 even after their augmentations. Because there is
capacity limitation in the existing GSs, grid interconnection of mini-hydro projects is restricted
in these areas. Therefore, construction of a new GS has been proposed in this area.
Wewalwatta area has been identified as a potential site for the interconnection of about 25
MW of mini-hydro power plants and is located between Ratnapura and Balangoda GSs close
to the existing 132 kV Balangoda - Ratnapura transmission line. The new GS can be
connected to the existing Balangoda - Ratnapura 132 kV transmission line.
Legend
132 kV Line
Project Scope
BalangodaRatnapura
1×31.5 MVA
60.4 MW MH3×31.5 MVA
Wewalwatta
66.4 MW MH
To Polpitiya
To Deniyaya
To Galle
3×31.5 MVA
(Prepared by the Survey Team)
Figure 3.2-10 Transmission Network around Wewalwatta GS
(2) Scope of the Project
1) Construction of Wewalwatta GS
- 1×31.5 MVA 132/33 kV transformers
- 1×132 kV single busbar transformer bays
- 2×132 kV single busbar transmission line bays
- 1×132 kV busbar including a bus section bay
- 1×33 kV transformer bay
- 4×33 kV feeder bays
2) Construction of single in and out transmission connection from 132 kV Balangoda –
Ratnapura TL (5 km, 2 cct., Zebra)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
3 - 22
(3) Estimated Base Cost
Table 3.2-14 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 557.9 million (FC) and LKR165.7 million (LC).
Table 3.2-14 Cost of Wewalwatta 132/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Nawalapitiya GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 1 set 71.80 8.8 71.8 8.8 132 kV single busbar transformer bay 1 set 25.6 4.5 25.6 4.5 132 kV line bay 2 sets 23.7 4.7 47.4 9.4 132 kV single busbar (including bus section) 1 set 38.4 3.6 38.4 3.6 33 kV transformer bay 1 set 13.3 0.1 13.3 0.1 33 kV feeder bay 4 sets 12.8 0.1 51.2 0.4 Common items for 132/33 kV grid 1 set 150.3 83.1 150.3 83.1 Substation Automation 1 set 46.6 0.5 46.6 0.5 Spare parts (7 %) 1 lot 31.1 7.7
Total 475.5 118.3 2) Single in and out connection from Balangoda – Ratnapura TL 132 kV, Zebra double cct. 5 km 16.5 9.5 82.3 47.4 Total 1)~2) 557.9 165.7 Total (FC+LC) 723.6
(Source: CEB Transmission Planning)
3.2.12 Construction of Tissamaharama GS (PJT-12)
(1) Objective
Tissamaharama GS is planned to be constructed in the Southern Province. The annual
energy demand of the Southern Province is 760 GWh. The Tissamaharama and
Katharagama areas are presently fed from Hambantota GS, with an alternative supply from
Embilipitiya GS via Thanamalvila. However, these distribution lines are very long and the
load of Katharagama is connected at the end of the distribution line. Hence, these areas
experience serious voltage drops. The situation may become critical with the load growth in
the areas in the near future.
Tissamaharama GS will relieve overloads of Hambantota GS, where the load growth in the
area is considerably high due to the development activities planned in the area. These
development activities include the Hambantota Harbor, Mattala Airport, Mirijjawila Industrial
Park, Mirijjawila salt- based industries, and Mirijjawila oil refinery.
In accordance with the forecasted demand to be increased in the area by 2025, it has been
proposed to construct a new GS at Tissamaharama in 2016 to overcome the critical voltage
drop issues at the Tissamaharama and Katharagama areas and to relieve loads of
Hambantota GS. Tissamaharama GS is proposed to connect to the national grid at
Hambantota GS using double circuit 132 kV transmission line.
Chapter 3 Transmission Line Projects
3 - 23
Legend
132 kV Line
Project Scope
Hambantota Tissamaharama
2×31.5 MVA
3×31.5 MVA
Zebra,22 km
To Embilipitiya
To Suruyawewa
Figure 3.2-11 Transmission Network around Tissamaharama GS
(2) Scope of the Project
1) Construction of Tissamaharama GS
- 2×31.5 MVA 132/33 kV transformers
- 2×132 kV single busbar transformer bays
- 2×132 kV single busbar transmission line bays
- 1×132 kV bus section bay including busbar
- 2×33 kV transformer bay
- 1×33 kV bus section bay including bus bar
- 8×33 kV feeder bays
2) Construction of 132 kV Hambantota – Tissamaharama TL (22 km, 2 cct., Zebra)
3) Augmentation of Hambantota GS (2×132 kV single busbar transmission line bays)
(3) Estimated Base Cost
Table 3.2-15 shows the project cost estimated by the CEB Transmission Planning. The
estimated total project cost (base cost) is LKR 1,080.4 million (FC) and LKR 361.4 million
(LC).
Table 3.2-15 Cost of Tissamaharama 132/33 kV GS Construction Project
Description Q’ty
Unit Cost (MLKR) Total Cost (MLKR) 1) Construction of Tissamaharama GS FC LC FC LC Transformers 132/33 kV, 31.5 MVA & E.Tr. & Aux.Tr 2 sets 71.80 8.82 143.6 17.64 132 kV single busbar transformer bay 2 sets 25.56 4.52 51.12 9.04 132 kV line bay 2 sets 23.70 4.69 47.41 9.37 132 kV single busbar (including bus section) 1 set 38.38 3.65 38.38 3.65 33 kV transformer bay 2 set 13.25 0.13 26.51 0.25 33 kV bus section bay incl. BB 1 set 14.41 0.13 14.41 0.13 33 kV feeder bay 8 sets 12.79 0.11 102.31 0.87 Common items for 132/33 kV grid 1 set 156.57 86.57 156.57 86.57 Substation Automation 1 set 46.6 0.5 46.56 0.51 Spare parts (7 %) 1 lot 31.1 7.7
Total 670.8 137.0 2) Construction of Hambantota – Tissamaharama TL 132 kV, Zebra double cct. 22 km 16.5 9.5 362.2 208.7 3) Augmentation of Hambantota GS 132 kV single busbar line bays 2 sets 23.7 4.7 47.4 9.4
Total 1)~3) 1,080.4 355.0 Total (FC+LC) 1,435.4
(Source: CEB Transmission Planning)
(Prepared by the Survey Team)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
3 - 24
3.3 Selection of Candidate Project for Japan’s Loan Aid
The Survey Team has evaluated the proposed projects based on the following criteria:
1) CEB’s development priority
3 points: PJT1 – PJT4
2 points: PJT5 - PJT8
1 point: PJT9 -
2) Commissioning year in LTTDP
3 points: - Year 2013
2 points: Year 2014 - 2015
1 point: Year 2016 -
3) Requirements from distribution development
3 points: 132 kV GS construction projects
2 points: 132 kV GS augmentation and TL projects
1 point: 220 kV TL and GS construction projects
4) Environmental and social considerations (existence of IEE report)
3 points: existing IEE report or GS augmentation projects (no IEE is needed)
2 points: GS land acquired/selected and TL route selected
1 point: No GS land acquired/selected and no TL route selected (no IEE report)
5) Applicability of Japan’s technology
3 points: 220 kV TL projects
2 points: 132 kV TL and/or GIS GS construction projects
1 point: AIS GS and GS augmentation projects
6) Contribution to TL and DL loss reduction
3 points: TL and DL loss reduction
2 points: DL loss reduction
1 point: No loss reduction
7) Population density of the project site1 (persons per sq. km)
3 points: 3,000 -
2 points: 600 – 2,999
1 point: - 599
Table 3.3-1 shows the result of the evaluation.
1 Source: Population of Sri Lanka by District by Department of Census and Statistics
Chapter 3 Transmission Line Projects
3 - 25
Table 3.3-1 Result of Evaluation
No. Sub-projects 1) 2) 3) 4) 5) 6) 7) Score
PJT-1 Colombo City Transmission Development 3 2 3 2 3 3 3 19
PJT-2 Construction of Kappalturai 132/33 kV GS 3 3 3 2 1 2 1 15
PJT-3 Construction of Kerawalapitiya 220/33 kV GS 3 3 3 2 2 2 3 18
PJT-4 Rehabilitation of Kiribathkumbura 132/33 kV GS 3 1 2 3 1 1 2 13
PJT-5 Construction of Veyangoda – Padukka 220 kV TL 2 2 2 1 3 3 2 15
PJT-6 Construction of Chemmuni 132/33 kV GS 2 1 3 2 1 2 2 13
PJT-7 Construction Kalutara 132/33 kV GS 2 3 3 2 1 2 2 15
PJT-8 Construction of Battaramulla 132/33 kV GS 2 1 3 1 2 2 3 14
PJT-9 Reconstruction of Anuradhapura 132/33 kV GS 1 1 2 3 1 1 1 10
PJT-10 Construction of Nawalapitiya 132/33 kV GS 1 1 3 1 1 2 2 11
PJT-11 Construction of Wewalwatta 132/33 kV GS 1 1 3 1 1 2 1 10
PJT-12 Construction of Tissamaharama 132/33 kV GS 1 1 3 1 1 2 1 10
(Prepared by the Survey Team)
As a result of the discussion with CEB considering the result of the evaluation, the following
project components were selected as the candidate projects:
1) Colombo City Transmission Development (PJT-1)
2) Construction of Kappalturai 132/33 kV GS (PJT-2)
3) Construction of Kerawalapitiya 220/33 kV GS (PJT-3)
4) Construction of Veyangoda – Kirindiwela – Padukka 220 kV TL (PJT-5)
5) Construction of Kalutara 132/33 kV GS (PJT-7)
6) Construction of Battaramulla 132/33 kV GS with related TL (PJT-8)
The selected candidate projects have scored more than 14 points in total. As these projects
are regarded as worth developing, they shall be carefully evaluated in the following chapters.
Projects that scored less than 10 points are not regarded as important to be studied by CEB
and thus the Survey Team also has not conducted further studies.
Regarding project packaging, it is reasonable and feasible to combine PJT-3, PJT-7 and
PJT-8, since each project area is in the vicinity of Colombo City and thus, is expected to add
increased benefit due to their combination.
As a result, the Survey Team proposed to further study the feasibility of the following
projects:
1) Colombo City Transmission Development (PJT-1)
2) Construction of Kappalturai 132/33 kV GS (PJT-2)
3) Construction of Kerawalapitiya 220/33 kV GS (PJT-3)
Construction of Kalutara 132/33 kV GS (PJT-7)
Construction of Battaramulla 132/33 kV GS with related TL (PJT-8)
4) Construction of Veyangoda – Kirindiwela – Padukka 220 kV TL (PJT-5)
CHAPTER 4 DISTRIBUTION LINE PROJECTS
Chapter 4 Distribution Line Projects
4 - 1
CHAPTER 4 DISTRIBUTION LINE PROJECTS
4.1 General
The Survey Team has received project proposals for the development of distribution lines
including MV, LV and DAS/AMR projects, which were prepared by each distribution region of
CEB. In addition, the Survey Team has investigated further requirements through
interviews with each regional office. As a result of the discussion with CEB concerning the
proposals, plans, and requirements, the Survey Team has nominated the following sub-
projects that will contribute to loss reduction.
1) New LV Substation (LV scheme)
The density of consumers is very thin in Sri Lanka, resulting in making LV lines long,
Thus causing major distribution losses. It would be very effective to provide additional
LV substations to reduce distribution losses. Details of the location and quantity of LV
substations shall be carefully studied and then selected. Basically, this activity shall
be considered into Distribution Loss Reduction Project. Additional loss reduction can
be obtained by using low loss type transformers for distribution transformers (DTs).
2) Single-phase to Three-phase Conversion
When single-phase circuit is converted to three-phase circuit, the maximum distributed
power can be three times than that of the single-phase circuit, and thus the load current
can be reduced by a third. Accordingly, the resistive loss can be reduced to a sixth
considering three wires for three-phase distribution lines. It is necessary to design the
consumer’s connections to balance the load current on each phase in order to make it
effective.
3) Auto Meter Reading (AMR)
At this moment, CEB does not have an automatic meter reading at DTs. CEB has
energy meters for large bulk consumers only. These energy meters have remote
monitoring facilities using Global System for Mobile (GSM) communications. CEB has
planned to provide the energy meters at the DTs to monitor the energy flow. The
technical losses of the distribution system cannot be reduced by providing energy
meters, but it can increase the ability to measure the distribution losses such as
technical and non-technical losses. It is possible to grasp the non-technical losses on
the distribution system and reduce power theft by monitoring and comparing input
energy to consumers billing. In the future, all energy meters will be provided at each
consumer as smart metering.
GRPS/GSM communications system is applied to the existing DAS system and CEB
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
4 - 2
planned to apply the same system for AMR. However, considering its reliability, the
Survey Team recommends to apply fiber optic communication as the “Back Bone
Communication” and radio communication such as Zigbee or RF Mesh for the “Last
One Mile Communication”.
4) New 33/11 kV PS and Reinforcement of Distribution Line
Construction of new 33/11 kV PS and reinforcement of MV distribution lines, which may
contribute to distribution loss reduction, are to be recommended. The major
contribution is resistive loss reduction by decreasing the load current and upgrading the
system voltage, and rectification of overloading to balance the load current on each MV
line. As a supplemental effect, reliability of the distribution system will improve and
lead to the reduction of overloading and blackouts. The final nomination of projects
will be done in a later stage after detailed analysis and evaluation.
5) Distribution Automation System (DAS)
Although DAS is not mentioned in MV Development Plan, the Survey Team found the
need through the project proposals and meetings with Regions 2 and 3.
DAS is a convenient tool to control the load current on distribution systems, to select
the best operation options, and to minimize distribution losses. DAS has intelligent
functions, for example, it is possible to know the latest distribution losses, which are
calculated from energy meters. Also, DAS has several supplemental advantages,
such as savings on labor, minimizing shut-down area, increasing reliability and
automatic logging and reporting.
New simplified DAS developed by CEB has remarkable progress from the existing fully
manual operation. It can monitor the switchgear status, alarm and current/voltage,
power factor and other control data obtained through simplified DAS. The so called
“Full-scale DAS” produced by major manufactures have superior functions in
accessibility, reliability, security and maintainability. Here, in the next step from
simplified “Mini SCADA” or “Micro SCADA” system, the Survey Team strongly
recommends to provide “Full scale DAS” for CEB. In addition, it is economical and
functional to combine the DAS and AMR system, for it is possible to use the same
communication links together.
On the other hand, the Survey Team has the subject to provide communication links
between the remote terminal units (RTUs) and the distribution control center. CEB
has used GSM/GPRS network in a very low cost of about US$ 3.0/month per terminal.
Communication links can be realized with a combination of the public telephone
network and GSM/GPRS network. However, CEB has already experienced that there
are several inconveniences and problems in GSM/GPRS communication system.
Chapter 4 Distribution Line Projects
4 - 3
6) Specialized Vehicles
At present, CEB’s maintenance staff use normal trucks and wooden radars for site
works at the top of the pole. They also use normal trucks and cranes to install
distribution poles at road sides. This is very dangerous and ineffective and therefore,
if the staff uses insulation bucket trucks and pole installation trucks for site works, safe
and efficient work can be assured. Therefore, the Survey Team suggests supplying
such trucks as shown in the following photographs.
To maximize the loss reduction effects, the distribution projects were mainly selected in
collaboration with the transmission projects as mentioned in Chapter 3 and may be grouped
to one distribution project including DAS and AMR, switchgear and MV lines to make them
effective as total system. The final proposal is described in Section 4.2 after detailed
investigation, discussions with CEB, and technical and economic studies.
4.2 Proposed Distribution Projects
4.2.1 New LV Schemes
(1) Small Capacity Distribution Transformers
1) Present situation of loading on DTs
DTs step down MV (33 or 11 kV in Sri Lanka)
to LV (415 V). DTs on overhead lines are of
the single-pole or double-pole mounted type.
Pole mounted DTs have a series of capacities
of 100 kVA, 160 kVA, 250 kVA, 400 kVA, and
others up to 1,000 kVA, with power fuses,
lightning arresters, disconnectors and energy
meters. LV lines from DTs have the length
from several hundred meters to 1.8 km to the most distant consumers.
On the other hand, in Japan, the DTs are only single-pole mounted type and smaller in
capacity than Sri Lankan DTs, such as 10 kVA to 100 kVA, and the length of the LV line
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
4 - 4
is shorter than that of CEB. In addition, if Japan’s technologies such as “Top Runner
Transformers” are to be applied, further loss reduction can be realized.
Figure 4.2-1 Loss Reduction by Small Transformers
2) Project scope of small DT installation
CEB has a series of standard capacities of DTs of which the minimum capacity is three
phase 100 kVA. However, a bigger capacity is used for smaller loads in some cases.
It may cause much no-load (iron) losses as pointed out in Region 3. If it is replaced by
a small sized single-phase transformer, it may be possible to reduce no-load losses.
On the other hand, load-losses on LV lines shall not be changed substantially because
such a small loaded feeder is almost single-phase. Heavily loaded single-phase lines
shall be converted to three-phase lines, and small sized single-phase DTs can be used
for small loaded single-phase lines without increasing much losses.
(2) Addition of LV Scheme
1) Present situation of LV distribution substation (LV Scheme)
In rural areas, the length of the LV distribution line is very long beyond determined
maximum length by CEB. It is very effective to provide one new LV Scheme between
the existing substations in order to shorten the LV lines and reduce the losses. Typical
daily load curves of rural areas and average load curve of Region 3 are shown in Figure
4.2-2.
2) Project of additional LV Scheme installation
It is possible to reduce the losses by installing LV Scheme as shown in Figure 4.2-3.
In case the lengths of LV line up to the end consumers are longer than determined
lengths, it should be selected to add new LV schemes as shown in Table 4.2-1.
Although Regions 2 and 3 of CEB proposed the project for LV schemes as shown in the
table, the Survey Team assumed the latent demand of LV schemes in other regions.
(Prepared by the Survey Team)
Chapter 4 Distribution Line Projects
4 - 5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Typical Load: Rural Area-1 %
Typical Load: Rural Area-2 %
Average Load: Region 3 %
(Source: CEB MV Develop Plan)
Figure 4.2-2 Typical Load Curves of Rural Areas and Region 3
(Prepared by the Survey Team)
Figure 4.2-3 Loss Reduction by Additional LV Schemes
Table 4.2-1 Proposed Additional LV Schemes
Region Area Required Q’ty Region 1 - N/A Region 2 WPN 75
Central 300 Eastern 170
Region 3 WPS-2 75 UVA 90 Sabaragamuwa 125
Region 4 - N/A Total 835
(Source: CEB Project Proposals of Region-1, -2,-3 and -4)
(hours)
(loads)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
4 - 6
4.2.2 Single-phase to Three-phase Conversion
(1) Present Situation of LV Lines
In Sri Lanka, three-phase four wire system is adopted
for LV lines, but many single-phase two wire systems
still remain in rural areas. The conversion from
single-phase to three-phase is being carried out one
by one at this moment, thus it may take substantial
time to convert a single-phase line to three-phase line.
The losses on LV lines can be reduced to 1/6 times
as shown in Figure 4.2-4.
(Prepared by the Survey Team)
Figure 4.2-4 Three-phase Conversion
(2) Project Scope for Single-phase to Three-phase Conversion
It is possible to reduce the losses by converting the existing single-phase lines to three-
phase lines. The Survey Team assumed that this measure is to be adopted in WPN, CP
and eastern of Region-2, and WPS-2, UVA and Sabaragamuwa of Region-3. However, the
Survey Team believed there is latent demand in Regions 1 and 4.
Table 4.2-2 Proposed Single-phase to Three-phase Conversion
Region Area Required Q’ty (km)
Project Cost (MLKR)
Region 1 - N/A 0 Region 2 WPN 100 50
Central 850 425 Eastern 420 210
Region 3 WPS-2 400 200 UVA 700 350 Sabaragamuwa 700 350
Region 4 - N/A 0 Total 3,170 1,585
(Source: CEB Project Proposals of Region-1, -2,-3 and -4)
Chapter 4 Distribution Line Projects
4 - 7
4.2.3 Provision of Automatic Meters Reading (AMR)
(1) Present Situation
The existing mechanical type energy meter on site and the electronic energy meter, which
are currently used are shown in the following photographs for reference. At this stage, the
energy meters have no remote monitoring facilities except for large bulk consumers. The
communication used for remote monitoring of large bulk consumers is GSM/GPRS.
(2) Requirement of AMR
Although only Region 4 has submitted the proposal of AMR at DTs, the Survey Team has
confirmed the needs of AMR at DTs through discussions with other regions. The proposal
and latent demand are shown in Table 4.2-3.
Table 4.2-3 Proposed AMR
regions areas project scope Remarks
Region 1 North Western Province New AMR Confirmed in discussion Region 2 Western Province North New AMR Confirmed in discussion Central New AMR Confirmed in discussion Region 3 Western Province South II New AMR Confirmed in discussion Region 4 Western Province South I Proposed New AMR for DTs 2660 sets In proposal
(Source: CEB Project Proposals of Region-4 and discussion with each region)
(3) Future Provision of “Smart Meter”
If smart meters can be provided at each consumer site, all information of energy flow can be
identified by CEB. Technical and non-technical losses can be monitored, especially,
power theft can be detected instantaneously and prevented completely.
4.2.4 Provision of New PSs and Reinforcement of Distribution Lines
Upgrading system voltage is one of the effective measures to reduce distribution losses. If
the system voltage is upgraded, it is possible to reduce load currents on the distribution lines
and resistive losses on the line. Upsizing conductors or installing additional distribution
lines is also one of the effective measures to reduce resistance of distribution lines.
Therefore, the Survey Team selected the projects to provide new PSs and the associated
new 33 kV distribution lines.
Electronic Type Energy Meter
Mechanical Type Energy Meter
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
4 - 8
Table 4.2-4 shows the proposed MV projects from each region.
Table 4.2-4 Proposed MV Projects
projects scope project costs
(MLKR) contribution to loss reduction
Region 1
Colombo City Network Development (Distribution Portion)
11 kV Under Ground Cable 400mm2 90km 11 kV Under Ground Cable 240mm2 3km 33kV Incoming and Outgoing panels and bus coupler panels at Kelanitissa 18sets 11kV Radial and RMU 86 sets RTU for SCADA 10 sets Communication Equipment 10 sets Fiber Optic Cable 15km
3,261.0 Loss reduction by shorten MV Cable length
North Central 3 3kV Distribution Lines
New A'pura GS to Kaduwela (DC Lynx Tower Line 20 km) Polonnaruwa GS to Mananpitiya (DC Lynx Tower Line 20 km) Polonnaruwa GS to Kaduruwela (DC Lynx Tower Line 3 km) Polonnaruwa GS to Janthipura (DC Lynx Tower Line 9 km) New A'pura GS to Mahaillupallama (DC Lynx Tower Line 41 km) Vavunia GS to Padaviya (DC Lynx Tower Line 35 km)
1,920.0 Loss reduction by preventing overload
North Western 33 kV Distribution Lines
Mandanpe GS to Bowatta (DC Lynx Tower Line 20 km) Maho GS to Maho Gantry ( SC Con. Pole Lynx Line 3 km) Maho GS to Nikaweratiya Gantry ( SC Con. Pole Lynx Line 14 km) Maho GS to Galgamuwa (DC Lynx Tower Line 23 km) Mallawapitiya GS to Udawalpola (SC Con Pole Lynx Line 4 km)
714.0 Loss reduction by preventing overload
Northern 33 kV Distribution Lines
Chemmuni GS to Ramalingam Ga. (SC ELM Pole Line 4 km) Chemmuni GS to Ramalingam Ga. (SC ELM Pole Line 2 km) Chemmuni GS to Kaithadi Ga. (SC ELM Pole Line 11.5 km)
54.3 Loss reduction by preventing overload
Region 2
WPN 33 kV Lines
Imbulgoda to Brandriyamulla ( Replace Lynx DC Tower 3.5km from Raccoon) Brandriyamulla to Dekatana ( Replace Lynx DC Tower 15km from Raccoon) Veyangoda Feder 7 and 8 to Maradana( Replace Raccoon DC Tower from Cockroach) Biyagama Feeder 5 to Mabola ( Same conductor) Kerawarapitiya to Maradana (Lynx SC Pole 3.7km ) Kerawarapitiya to Mabola (Lynx SC Pole 8km ) ABC Insulated Cable ( ABC 0.5km)
1,071.4 Loss reduction by preventing overload
WPN 33 kV Primary Substation
Augmentation of two PSs with Remote Control(2x5MVA to 2x10MVA) Two new PSs ( Awarakotuwara 2x5MVA, Pamunugamuwa 1x5MVA) Five gantries (Sellakanda, Siriyangani, Diulapitiya, Veyangoda, Dunagaha )
1,765.7 Loss reduction by upgrade voltage
WPN Aerial Bundle Conductor(ABC)
Conversion of Tree Phase LV bare Conductor to ABC in town area 6 x 20km) 140 Loss reduction and reliability
WPN Equipment for Loss Reduction
Portable three-phase meters testing units 14 sets Portable single-phase testing units 20 sets Three-phase phantom load Unit 1 set
37.8
Central 33kV Primary Substation
Augument of Bogambara PS ( 2x10 MVA to 2x20/15 MVA ) Augument of Gatambe PS ( 2x10 MVA to 2x20/15 MVA ) Augument of Polgolla PS ( 2x5 MVA to 2x10 MVA ) New PS (Wattarantenna 2x10 MVA)
1,639.2 Loss reduction by preventing overload
Eastern 33kV Lines
Gamadu Junc. to Inginiyanagala ( Lynx DC Tower 20km) Giranturukotte to Dehiatakandiya (Lynx SC 25km) Ampara to Uhana (Lynx SC 10km) Akkaraipatthu GSS to Karathivu (Lynx DC Tower 20km)
1,067.5 Loss reduction by preventing overload
Eastern Gantry
12 DBB and 12 SBB gantries 960.0
Eastern Equipment for loss reduction
Portable three-phase meters testing units 5 sets Portable single-phase testing units 9 sets
14.1
Region 3
WPS2 Conversion of OH system to UG Cable System
In Battaramulla town, existing OH distribution system will be replaced to new underground distribution system.
3,500.0 Loss reduction by decrease cable resistance and shorten length
WPS2 33/11 kV Primary Substation
2X10 MVA at Thalahena 600.0 Loss reduction by upgrade voltage
Chapter 4 Distribution Line Projects
4 - 9
projects scope project costs
(MLKR) contribution to loss reduction
WPS2 33 kV UG Lines
Aurveda Junc. to Ethulkotte, Rajagiriya UD Double Circuit 3. km
350.0 Loss reduction by preventing overload
WPS2 Construction and Rehabilitation of 33 kV Lines
Reconduction Koratota to Ambatale (Lynx SC 7.5 km) Meethotamulla Ga. to Ambatale Ga. (Con. Pole Lynx SC 10 km) Authurugiriya GS to Malambe ( Lynx SC 7 km) Rukmale Ga. To Makumbura Ga. (Lynx SC 8 km) Reconduction Wele Junc. To Ambathala (Raccoon SC 5 km) Reconduction Horana Ga. to Narthupana Line (Raccoon SC 2 6km) Reconduction Batuwita Junc. To Mawgama (Raccoon SC 3 km) Reconduction Horana Ga. from Ingiriya to Bope Tapping (Raccoon SC 3km)
340.5 Loss reduction by preventing overload
UVA Construction of 33 kV Lines
Mahiyangana to Girakotte (Lynx DC 16 km) with Gantry (2SSBB) Mhiyangana GS to Walapane (Lynx SC 20 km) with Gantry Mhiyangana GS to Walapane (Lynx SC 20 km) with Gantry(2SSBB) Monaragala to Wellawara Express (Lynx SC 28 km) with Gantry(2SSBB) Mahiyangana GS to Andaulpotha (Lynx SC 12 km) Ragala to Rikillagaskada (Lynx DC 24 km) with Gantry (2SSBB) Kalugakandura to Roberiya (Raccoon SC 8 km) Keerthibandarapura to Happawara (Raccoon SC 8 km) Haggala to Galahagama (Raccoon SC 6 km) Glendevon to Roberiya (Raccoon SC 4 km) Motogora to Hali Ela (Raccoon SC 4 km) Pallebowala to Hapugasdeniya (Raccoon SC 6 km) Haputale to Boralenda (Raccoon SC 6km) Reconducting to Haputale to Idalgashinna (Raccoon SC 10 km) Reconducting to Ragala to Rupaha (Raccoon SC 7 km) Reconducting to Welimada to Boraland (Raccoon SC 8 km)
1,432.5 Loss reduction by preventing overload
SAB Construction of 33 kV Lines
WPS GS to Norwood (Lynx SC 12 km ) with Gantry (2SSBB) Conversion to 33 kV Emblipitiya to Panamura (Raccoon SC 10 km) Reconducting Kurivita to Ehaliyagoda from weasel line (Raccoon SC 15 km) Reconducting Kolonna to Kooppakanda from weasel line (Raccoon SC 12 km) Reconduction to Neelagama (Lynx SC 10 km) Horana GS to Heraniyawaka ABS (Lynx SC 19 km) Seethwaka GS to Daraniyagala/Nakkavia Ga. (Lynx SC 23 km) with Ga. Reconduction NAkkavita to Maliboda Estate (Lynx SC 6 km) Kotiyakumbra to Balapaththawa (Raccoon SC 10 km) Kotiyakumbra to Warawala (Raccoon SC 6 km) Pathakada to Ganegama (Raccoon SC 2.5 km) Indurana to Gonagaldeniya ( Raccoon SC 2 km) Reconducting Pelamadulla Bathgangoda to Lellupitiya Junc. (Raccoon SC 6 km) Reconducting Deraniyagala to Miyanawita (Raccoon SC 6 km) Reconducting Anguruwella to Kotiyakumbra (Raccoon SC 5 km) Malwala Junc. to Palabaddala (Raccoon SC 7 km)
935.8 Loss reduction by preventing overload
Region 4
Dehiwala Mount Laveniya Under Ground Cabling Project
New 11 kV UGC (240 sq.mm x 33 km) New 11 kV UGC (95 sq.mm x 3km) New Radial SS 12 locations Replace to ABC 200 km
2,125.0 Loss reduction by decrease resistance of cable and shorten the length
Bentota 11 kV Under Ground Network Development Project
New 11kV UGC (240 sq.mm x 4 km) New 11kV UGC (95 sq.mm x 2.25 km) New Ring Main Unit 10 locations New LV cable 7 km Other miscellaneous
160.0 Loss reduction by decrease resistance of cable and shorten the length
(Source: CEB MV Project Proposals of Region-1, -2,-3 and -4)
4.2.5 Provision of DAS
DAS is very useful to control and manage the distribution system. Although only Western
Province North and Central Province of Region 2 have submitted the proposal of DAS, the
Survey Team recognized additional needs through the discussion with each region. The
requirements of DAS are summarized in Table 4.2-5.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
4 - 10
Table 4.2-5 Proposed DAS
regions project scope remarks
Region 1
North Western Province New DAS
Region 2
Western Province North Reinforcement of existing DAS
including Auto-recloser 94sets, LBS 126 sets, Fault
indicator 410 sets
Interface of GSM/ GPRS is
included in each switch.
Central Reinforcement of existing DAS, SCADA software,
Auto-recloser 65sets, LBS 110, GPS instrument, GIS
software
Interface of GSM/ GPRS is
included in each switch.
Region 3
Western Province South II New DAS
Region 4
Western Province South I New DAS
(Source: CEB Project Proposals of Region-1, -2,-3 and -4)
4.2.6 Provision of Specialized Vehicles
As mentioned in Item 6) in Section 4.1, to secure safety and efficiency of installation and
maintenance work of distribution lines, Regions 1 and 2 have requested specialized vehicles
as shown in Table 4.2-6.
Table 4.2-6 Proposed Specialized Vehicles
Region Vehicle Required Q’ty Project Cost
(MLKR)
Region 1 Bucket Truck 1 42.2
Pole Ins. Truck 1 42.2
Cargo Cranes 1 42.2
Region 2 Bucket Truck 4 168.9
Pole Ins. Truck 4 168.9
Cargo Cranes 4 168.9
Region 3 - - -
Region 4 - N/A -
Total 15 630.3
(Prepared by the Survey Team based on CEB proposal )
4.2.7 Colombo City 11 kV Development Project
This project is associated with Colombo City Transmission Development Project (PJT-1) and
is designed to provide 11 kV underground cables and switchgear to distribute the electricity
from 132 kV GSs which are reinforced by PJT-1. Table 4.2-7 shows the scope of this
project and Figure 4.2-5 shows the project locations.
Chapter 4 Distribution Line Projects
4 - 11
Table 4.2-7 Colombo City 11 kV Development Project
No. Sub-projects Specifications Switchgear
1 Radial circuit from N GS to No 320, Union Place to De load Sub. E & I
11 kV UGC XLPE 400 mm2, 4.5 km
N/A
2 Interconnection from M GS to N GS 11kV UGC XLPE 400 mm2, 6 km
N/A
3 33 kV GIS substation at Kelanitissa N/A 33 kV GIS panels: 18 sets 4 Galle Face Green 3 Projects: Shangri-La, Sheraton
Hotels Apartment and Condominium Center 11kV UGC XLPE 400 mm2, 50 km
11 kV RMU :33 sets
5 Re-development project, Slave Island 11kV UGC XLPE 400 mm2, 6 km
11 kV RMU :9 sets
6 Development project at Colombo Commercial -Colombo Residential Apartment -Abans Development -Nawaloka Development
11kV UGC XLPE 400 mm2, 15 km
11 kV RMU : 26 sets
7 Regal Theater Site 11kV UGC XLPE 400 mm2, 7.5 km
11 kV RMU :9 sets
8 Lotus Tower 11kV UGC XLPE 240 mm2, 3 km
11 kV RMU :9 sets
9 Construction vehicles 12 Vehicles N/A
(Prepared by the Survey Team based on CEB proposal )
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(Source: CEB Project Proposals of Region-1 Colombo City)
Figure 4.2-5 11 kV Cable Routes in Colombo City
③
⑥
⑤
⑦
②
④
①
⑧
Kelanitissa P/S
Chapter 4 Distribution Line Projects
4 - 13
4.3 Packaged Distribution Projects
Individual loss reduction projects have been described in the above sections. Considering
the features of a distribution system, the individual projects are spread all over the country.
Thus, it is difficult to control and manage the projects and moreover, the total effect of the
projects cannot be measured. The Survey Team proposes to concentrate the projects into
one package in one province, considering the project priority of CEB, the multiplier effect
between each individual project, and its relation to the transmission project as shown in
Table 4.3-1.
Table 4.3-1 Packaged Distribution Projects
Region Package Area 11 kV
UGC
11/33 kV
SWGR
DAS AMR MV Line
& PSs
DT 3-phase
Conv.
Small
DT
Other
Facilities
R 1 1 Colombo
City
Yes Yes N/A N/A N/A N/A N/A N/A
2 NWP N/A N/A Yes Yes Yes Yes Yes (Yes) Construction
Vehicle
R 2 3 WPN N/A N/A Yes Yes Yes Yes Yes (Yes) Ditto
R 3 4 WPS-2 Yes N/A Yes Yes Yes Yes Yes Yes Ditto
R 4 5 WPS-1 Yes N/A Yes Yes N/A Yes N/A (Yes) Ditto
(Prepared by the Survey Team)
Note: “Yes” in the table means latent demand in rural area assumed by the Survey Team.
Package 1 is associated with Colombo City Transmission Development (PJT-1). Other
packages are independent projects in each province which surrounds Colombo City. Since
electricity demand is rapidly increasing in these areas, the provision of DAS and other
control systems with advanced technology, and reinforcement of the MV system are
necessary.
CHAPTER 5 POWER FLOW AND LOSS REDUCTION CALCULATIONS
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 1
CHAPTER 5 POWER FLOW AND LOSS REDUCTION CALCULATIONS
5.1 General
To evaluate the effects of the candidate transmission projects as mentioned in Section 3.3,
the Survey Team carried out power flow and loss reduction calculations.
Transmission line projects, such as PJT-1 and PJT-5, are intended to reduce transmission
losses, which are calculated using software for power system analysis, such as PSS/E.
Loss reduction values for transmission projects are calculated to compare the results
between with and without project cases.
On the other hand, grid substation construction projects aim to reduce distribution losses by
shortening medium voltage (MV) distribution lines. Loss reduction values of the grid
substation projects are to be calculated based on the forecasted demand and supposed MV
feeder line length from the related grid substations. Details of the calculations are
described in the following sections.
Calculated loss reduction values are to be used for economic evaluations of the candidate
projects described in Chapter 10.
5.1.1 Power Flow Calculations for Transmission Projects
The power flow calculations validate the status of the future CEB’s transmission network,
especially for the 220 kV and 132 kV transmission lines to be developed under the candidate
projects. The active and reactive power flows on transmission lines, voltages, and phase
angles at each bus in power stations and grid substations are to be simulated in the
calculations. The objective of the power flow calculations is to compare the transmission
loss values between with and without the candidate transmission line projects.
The Transmission Planning of CEB has provided all necessary data on the existing and
future network required to calculate results in 2012, 2015, and 2020, using the PSS/E format.
Such data include line constants, transformer capacities, generating conditions, substation
loads, static capacitors, and shunt reactors, etc. The Survey Team has built future network
models for with and without the candidate projects that are suitable to calculate results for
2015 and 2020, based on the provided data, development plans and demand forecast.
The Survey Team has carried out power flow calculations using “PSS/ETM version 33”
software with the following technical criteria for transmission network planning:
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1) Power Flow
Under normal operating conditions, the loading of transmission lines shall not exceed
the thermal ratings calculated at a maximum operating temperature of 75 °C or 54 °C
for some old lines, as shown in Table 2.3-3 in Chapter 2. In case of a single circuit
fault for the interval with more than double circuits, the power flow of remaining facilities
must be within the rated capacity (N-1 criteria).
Under normal operating conditions, the loading of transformers shall not exceed the
rated capacity of transformers allowed by the available mode of cooling. Under N-1
contingency conditions, a short period (one hour) of overloading of up to 120% rated
capacity is allowed.
2) System Voltage
Bus voltage for power stations/substations must be in the range from 95 % to 105 % at
normal operating conditions, and in the range from 90% to 110 % at N-1 condition.
5.1.2 Loss Reduction Calculations for Substation Projects
Since it is difficult to estimate loss reduction values of candidate substation projects with the
power flow calculations, the Survey Team estimated the values with the following methods.
(1) Losses on MV Distribution Lines
Candidate substation projects contribute to the reduction of MV distribution losses. Figure
5.1-2 shows the concepts of the loss reduction calculation on the MV lines.
(1) Without the Project
(2) With the Project
(Prepared by the Survey Team)
Figure 5.1-2 Calculation Concept
A
GS
B
GS
Demand Electricity Electricity Electricity
Demand
MV Line: X km MV Line: Y km
B
GS
Demand Electricity Electricity Demand
Existing MV Line MV Line: Y / 2 km
A
GS
C
GS
Demand
MV Line: X / 2 km Existing MV Line
BSC Loss Reduction
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 3
1) Demand forecasts for the existing and new substations up to 2025 are given by CEB.
2) In case that candidate substation (C GS) is not constructed in some areas, neighboring
existing substations (A and B GSs) shall supply electric power to said areas via long-
distance MV distribution lines (without the project case).
3) In case the candidate substation is constructed in the area as mentioned above, MV
distribution lines from the existing substations can be shortened (with the project case).
Loss reduction values can be calculated to examine differences in distribution losses
between “with the project” and “without the project”.
4) Annual MV line losses (MWh/year) can be calculated using the following formula:
Annual MV line loss = NC x L x NCC x R x I2 x (0.3 x LF + 0.7 x LF2) x 24 hrs x 356 days
Where: NC: Nos. of conductors/circuit
L: Line length (km)
NCC: Nos. of circuit
R: Conductor resistance (Ω/km)
I: Load current (A)
LF: Load factor = 0.55
(2) Iron and Copper Losses on Main Transformers
As described in the above cases shown in Figure 5.1-2, transformer loads in C GS shall be
borne by A and B GSs in the “without the project” case. Transformer losses consist of iron
(no-load) and copper (load) losses. Among these, copper loss especially increases with the
increase in load. Thus, transformer loss reduction values can be calculated for comparison
between “with the project” and “without the project” cases.
Annual transformer losses (MWh/year) can be calculated using the following formulas:
Annual transformer loss (MWh/year) = Annual iron (no load) loss + Annual copper (load) loss
Annual iron loss (MWh/year) = Iron loss (MW) x UF x 24 hrs x 365 days x TR nos.
Annual copper loss (MWh/year) = Copper loss (MW) x (load/capacity)2 x LF x 24 hrs x 365 days x TR nos.
Where: UF: Utilization factor = 1.0 (TR 1 unit), 0.95 (2 units), 0.75 (3 units), and 0.65 (4 units)
LF: Load factor = 0.55
(3) Installation of Static Capacitors
In case static capacitors are to be installed in the candidate substation, annual loss reduction
value (MWh/year) by the capacitors is calculated using the following formula:
Loss Reduction (MWh/year) = (AP1 – AP2)×( 1 – (PF1 / PF2)2 ) x PF2×LF2×24 hrs×UF×365 days
Where: AP1: Apparent power (MVA) = ( (active power)2 + (reactive power)2 )1/2
AP2: Improved apparent power by capacitors (MVA)
PF1: Power factor before improvement
PF2: Improved power factor
LF: Load factor = 0.55
UF: Utilization factor = 0.4
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5.2 Colombo City Transmission Development (PJT-1)
5.2.1 Study on the Project Scope
With regards to the Colombo City Transmission Development Project (PJT-1), CEB had
several alternative plans considering the future system configurations, construction costs,
and construction possibilities. Through discussion with CEB in order to decide the scope of
the project, the Survey Team calculated the following three cases.
(Prepared by the Survey Team)
Figure 5.2-1 Calculation Cases
1) Calculation cases
Particular scope of each calculation case is as follows:
i) Option-1 (Alternative-1): almost same as the original proposal (Figure 5.2-1 (1)) - Kerawalapitiya – Port 220 kV 1,600 mm2 XLPE cable, single-circuit, 14.9 km
- Kelanitissa – Port 220 kV 1,200 mm2 XLPE cable, single-circuit, 7.2 km
- Port 220/132 kV GS with 220/132 kV 2 x 250 MVA tie-TR and 132/11 kV 4 x
31.5 MVA TR
ii) Option-1 (alternative-2): without Kerawalapitiya – Port line (Figure 5.2-1 (2)) - Kelanitissa – Port 220 kV 1,200 mm2 XLPE cable, double-circuit, 7.2 km
- Port 220/132 kV GS: same as Option-1 (Alternative-1)
iii) Option-2: 220 kV links around Colombo City (Figure 5.2-1 (3)) - Kelanitissa – Port 220 kV 1,200 mm2 XLPE cable, single-circuit, 7.2 km
- Port – Colombo M 220 kV 800 mm2 XLPE cable, single-circuit, 7.8 km
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 5
- Colombo M – Colombo K 220 kV 800 mm2 XLPE cable, single-circuit, 14.2 km
- Colombo K - Pannipitiya 220 kV 1,200 mm2 XLPE cable, single-circuit, 2.6 km
- Port: 220/11 kV GS with 220/11 kV 4 x 31.5 MVA TR
- Kelanitissa: additional 220/132 kV, 150 MVA main tie-TR
2) Calculation conditions
i) GS demands (given by CEB Transmission Planning): day peak demand in 2020
3) Calculation results
Results of the calculations are summarized in Table 5.2-1.
Table 5.2-1 Results of Power Flow Calculations for Three Cases ------------------------------------------------------------------------------------------------------------------------------------------------ FROM TO TO TO TO (IN MW/MVAR) GENERATION INDUCTN TO BUS BUS GNE LINE FROM SYNCHRN / INDUCTN MOTORS LOAD SHUNT DEVICES SHUNT CHARGING LOSSES ------------------------------------------------------------------------------------------------------------------------------------------------
*2020 OP-1(Alt-1) Day Peak: 3146.9 0.0 0.0 3072.2 0.0 0.0 0.0 0.0 74.7 (2.37%) 546.9 0.0 0.0 1436.5 -1099.0 0.0 0.0 810.7 1020.1 *2020 OP-1(Alt-2) Day Peak 3148.6 0.0 0.0 3072.2 0.0 0.0 0.0 0.0 76.4 (2.42%) 612.6 0.0 0.0 1436.5 -1094.9 0.0 0.0 756.2 1027.2 *2020 OP-2 Day Peak: 3147.3 0.0 0.0 3072.2 0.0 0.0 0.0 0.0 75.1 (2.39%) 605.8 0.0 0.0 1436.5 -1100.3 0.0 0.0 765.7 1035.3 ---------------------------------------------------------------------------------------------------------------------------------------------- (Prepared by the Survey Team)
The following figures attached at the end of this chapter also show the results:
Figure 5.2-2 (1) Power Flow Calculation: Option-1 (Alternative-1) in 2020
Figure 5.2-2 (2) Power Flow Calculation: Option-1 (Alternative-2) in 2020
Figure 5.2-2 (3) Power Flow Calculation: Option-2 in 2020
All cases satisfy voltage and system reliability criteria. As shown in Table 5.2-1,
Option-1 (Alternative-1) has the lowest percentage of transmission loss (of the whole
transmission network).
4) Cable size considerations
To decide on the cable sizes, especially for the sections between Kerawalapitiya and
Port, and between Kelanitissa and Port, the Survey Team carried out power flow
calculations with the following conditions:
- Generation capacity of Kerawalapitiya: 540 MW (+270 MW)
- Demand forecast: day peak demand in 2032 given by CEB
- System configurations: same as in 2020, but excludes outside of Colombo City
- Swing-generators (virtual-generators) are installed to 220 kV buses in Biyagama
and Kotugoda for calculation purposes.
The results of calculations considering 2032 are shown in the following figures attached
at the end of this chapter:
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Figure 5.2-3 (1) Power Flow Calculation: Option-1 in 2032
Figure 5.2-3 (2) Power Flow Calculation: Option-2 in 2032
As a result of the calculations, the following cable sizes were found needed:
- Kerawalapitiya and Port section: more than XLPE 1,600 mm2
- Kerawalapitiya and Kelanitissa: more than XLPE 1,600 mm2
- Kelanitissa and Port: more than XLPE 1,200 mm2 (considering unknown 200 MW
load for ‘Ocean City’)
However, these results are obtained through many assumptions. It should be
recalculated, when the additional generators in Kerawalapitiya are realized with the
actual system configurations and substation demands.
5) Scope of the Project
Through discussions with CEB based on the above calculation results, Option-1
(Alternative-1) was selected as the scope of PJT-1. However, regarding the 220 kV
cable section between Kelanitissa and Port, 1,600 mm2 cables are to be applied since
CEB required them considering power demands in the far future.
Figure 5.2-4 shows the scope of PJT-1 with full-scale development by 2020.
Figure 5.2-4 Colombo City Transmission Development Project (Full-scale)
(Prepared by the Survey Team)
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 7
Considering electricity demand forecast and system configurations in Colombo City,
PJT-1 is divided into two phases: Phase-1 by 2015 (to be requested to JICA for 43rd
Year Loan Package), and Phase-2 by 2020 as shown in above figure.
5.2.2 Calculations for 2015 Network (Phase-1)
(1) Conditions
1) Cases: with and without Phase-1 Package
“Without the project” means substation demands in 2015 are to be applied for the
calculation, but system configuration is the same as the existing network in 2012.
2) Basic system configurations: 2015 network data provided by CEB
The Survey Team only modified the system elements to be developed under the project.
3) Electricity demand: day peak demand in 2015 provided by CEB
Electricity demands for grid substations in Colombo City with/without the project are
shown in Table 5.2-2. As for the calculation of “without the project”, the following loads
for new grid substations are assumed distributed to the existing grid substations
considering the locations:
- 100% load of Colombo L is to be distributed to Colombo F;
- 100% load of Colombo M is to be distributed to Colombo E; and
- Each 50% load of Colombo N is to be distributed to Colombo I and Colombo B,
respectively.
Table 5.2-2 Demand Forecast for Phase-1 Calculations
2015 with Project 2015 without Project Grid Substations MW MVar ⇒ MW MVar
Colombo A 56.82 22.46 56.82 22.46 Colombo B 25.42 15.75 34.94 19.81 Colombo C 24.40 15.12 24.40 15.12 Colombo E 54.18 32.15 80.93 48.02 Colombo F 39.76 22.53 66.96 39.39 Colombo I 40.20 17.13 49.73 21.18 Colombo K - - - - Colombo L 27.20 16.86 F: 100% - - Colombo M 26.75 15.87 E: 100% - - Colombo N 19.04 8.11 I: 50%, B: 50% - - Colombo P - - - - Kelenitissa 24.06 14.91 24.06 14.91 Kolonnawa 47.18 29.24 47.18 29.24
Total 385.00 210.12 385.00 210.12
(Prepared by the Survey Team based on CEB’s forecast)
4) Since this calculation aims to estimate the transmission losses, over-loadings of main
transformers and transmission lines for the calculation of “without the project” are not
considered.
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(2) Results
Figures 5.2-5 (1) and 5.2-5 (2) (attached at the end of this chapter) show the results of the
calculations for with and without Phase-1 project, respectively. As shown in Figure 5.2-5 (1),
there is no serious problem in the load flow on the grid under normal operating conditions.
Table 5.2-3 summarizes the results.
Table 5.2-3 Results of Calculations for Phase-1 --------------------------------------------------------------------------------------------------------------------------------------------- FROM TO TO TO TO (IN MW/MVAR) GENERATION INDUCTN TO BUS BUS GNE LINE FROM SYNCHRN / INDUCTN MOTORS LOAD SHUNT DEVICES SHUNT CHARGING LOSSES --------------------------------------------------------------------------------------------------------------------------------------------- With Project 2278.3 0.0 0.0 2239.1 0.0 0.0 0.0 0.0 39.2 277.9 0.0 0.0 1051.8 -695.8 0.0 0.0 629.8 551.8 --------------------------------------------------------------------------------------------------------------------------------------------- Without Project 2283.7 0.0 0.0 2239.1 0.0 0.0 0.0 0.0 44.6 (+5.4 MW) 505.2 0.0 0.0 1045.1 -682.2 0.0 0.0 502.3 644.6 ---------------------------------------------------------------------------------------------------------------------------------------------
(Prepared by the Survey Team)
As shown in the above table, compared with the result of “with the project” case, active
power loss of “without the project” case increased by 5.4 MW.
5.2.3 Calculations for 2020 Network (Phase-2)
(1) Conditions
1) Cases: with and without Phase-2 Package
“Without the project” means substation demands in 2020 are applied to the calculation,
but the system configuration is same as the existing network in 2012.
2) Basic system configurations: 2020 network data provided by CEB
3) Electricity demand: day peak demand in 2020 provided by CEB
Electricity demands for grid substations in Colombo City for with/without the project are
shown in Table 5.2-4. As for the calculation of “without the project”, loads for new grid
substations are assumed to be distributed to the existing grid substations considering
the locations as follows:
- 100% load of Colombo K is to be distributed to Colombo A.
- Each 50% load of Colombo L is to be distributed to Colombo F and Colombo C.
- 100% load of Colombo M is to be distributed to Colombo E.
- Each 50% load of Colombo N is to be distributed to Colombo I and Colombo B.
- Each 50% load of Colombo P is to be distributed to Colombo I and Colombo B.
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 9
Table 5.2-4 Demand Forecast for Phase-2 Calculations
2020 with Project 2020 without Project Grid Substations MW MVar ⇒ MW MVar
Colombo A 58.22 23.01 69.66 27.53 Colombo B 48.45 30.03 78.35 42.76 Colombo C 28.14 17.44 70.64 43.78 Colombo E 59.51 35.31 96.92 57.51 Colombo F 52.55 29.78 95.05 56.12 Colombo I 45.26 19.28 75.16 32.02 Colombo K 11.44 4.52 A: 100% - - Colombo L 85.00 52.68 F: 50%, C:50% - - Colombo M 37.41 22.20 E: 100% - - Colombo N 26.68 11.37 I: 50%, B: 50% - - Colombo P 33.12 14.11 I: 50%, B: 50% - - Kelenitissa 51.17 31.71 51.17 31.71 Kolonnawa 53.30 33.03 53.30 33.03
Total 590.24 324.46 590.24 324.46
(Prepared by the Survey Team based on CEB’s forecast)
4) Over-loadings of main transformers and transmission lines for the calculation of
“Without the Project” are to be ignored.
(2) Results
Figures 5.2-6 (1) and 5.2-6 (2) (attached at the end of this chapter) show the results of the
calculations for with and without Phase-2 Project, respectively. As shown in Figure 5.2-6
(1), there is no serious problem in the load flow on the grid under normal operating
conditions. Table 5.2-5 summarizes the results.
Table 5.2-5 Results of Calculations of Phase-2 --------------------------------------------------------------------------------------------------------------------------------------------- FROM TO TO TO TO (IN MW/MVAR) GENERATION INDUCTN TO BUS BUS GNE LINE FROM SYNCHRN / INDUCTN MOTORS LOAD SHUNT DEVICES SHUNT CHARGING LOSSES --------------------------------------------------------------------------------------------------------------------------------------------- With Project 3148.4 0.0 0.0 3073.9 0.0 0.0 0.0 0.0 74.5 518.2 0.0 0.0 1433.1 -1104.4 0.0 0.0 819.4 1008.9 --------------------------------------------------------------------------------------------------------------------------------------------- Without Project 3154.3 0.0 0.0 3074.0 0.0 0.0 0.0 0.0 80.3 (+5.8 MW) 899.1 0.0 0.0 1433.2 -1077.4 0.0 0.0 672.7 1216.0 ---------------------------------------------------------------------------------------------------------------------------------------------
(Prepared by the Survey Team)
As shown in the above table, compared with the result of “with the project” case, active
power loss of “without the project” case increased by 5.8 MW.
5.2.4 Loss Reduction Calculations
Based on the results of the power flow calculations shown in Tables 5.2-3 and 5.2-5,
transmission loss reduction values are to be estimated with the following conditions:
1) Loss reduction values between 2016 and 2019 are to be determined based on
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 10
compounded annual growth rate (CAGR) calculated using the following formula:
CAGR = (Value of year-Y/Value of year-X)^{1/(Y-X)} - 1
Where: X = 2015 and Y = 2020
2) Annual loss savings are to be calculated using the following formula;
Annual loss savings = MW loss savings x 24 hours x 365 days x (0.3 x LF + 0.7 x LF2)
Where: LF: Load Factor = 0.55
3) Annual loss savings after 2021 are assumed constant.
Table 5.2-6 shows the results of the loss reduction calculations.
Table 5.2-6 Loss Reduction Calculations for PJT-1
unit 2015 2016 2017 2018 2019 2020
1) with Project MW loss MW 39.2 - - - - 74.5
2) without Project MW loss MW 44.6 - - - - 80.3
differentia 2) - 1) MW loss saving MW 5.4 5.5 5.6 5.6 5.7 5.8
Annual savings MWh loss saving MWh 17,821.8 18,078.3 18,338.5 18,602.5 18,870.3 19,141.9
(Prepared by the Survey Team)
5.3 Construction of Kappalthurai GS (PJT-2)
Table 5.3-1 shows the demand forecast for Trincomalee GS without the construction of
Kappalthurai GS. A grid substation shall meet the demand taking into account a single unit
outage condition without exceeding 120% loading on the other units. As shown in the
forecast, loading of Trincomalee GS is expected to be 182% in 2015.
Table 5.3-1 Demand Forecast for Trincomalee GS
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Trincomalee 2×31.5 - 114.9 118.8 119.9 125.6 132.7 135.7 142.4 149.6 161.1 173.5 186.7
(Prepared by the Survey Team based on CEB’s forecast)
To share the increasing needs of minimizing the MV distribution line losses, and to reduce
loading of Trincomalee GS, it is proposed to construct a new GS in Kappalthurai, which will
be installed with two sets of 63 MVA transformers and eight 33 kV feeders. Table 5.3-2
shows the demand forecast with the proposed new Kappalthurai GS.
Table 5.3-2 Demand Forecast for Trincomalee and Kappalthurai GSs
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Trincomalee 2×31.5 - 27.2 29.3 29.9 32.7 36.2 37.6 41.1 45.1 47.4 48.4 49.3
Kappalthurai - 3 x 63* 87.7 89.5 90.0 92.9 96.5 98.1 101.3 104.5 113.7 125.1 137.4
(Prepared by the Survey Team based on CEB’s forecast)
Note *: Initial transformer capacity is 2 x 63 MVA, and 1 x 63 MVA transformer is to be added in 2023.
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 11
Based on the above demand forecast, the Survey Team calculated the loss reduction values
on MV distribution lines and on transformers for comparison between “with” and “without” the
project”.
(1) MV Line Losses
Table 5.3-3 shows the result of MV line loss calculations with the following conditions:
- MV line length: 10 km without the project, and 5 km with the project
- MV line conductor size: ACSR Goat
- Number of MV lines: single-circuit between Kappalthurai and Trincomalee GSs
- Calculation formula: as shown in Sub-section 5.1.2 (1)
Table 5.3-3 MV Line Loss Reduction by PJT-2
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (MV line 10 km)
1) Annual MV line losses (MWh/year) 5,098.3 5,308.6 5,361.1 5,676.5 6,149.5 6,359.8 6,780.2 7,200.7 8,514.7 10,301.8 12,456.7
With project (MV line 5 km)
2) Annual MV line losses (MWh/year) 2,522.9 2,628.0 2,680.6 2,838.2 3,048.5 3,153.6 3,363.8 3,626.6 4,257.4 5,150.9 6,254.6
Loss reduction (MWh/year) : 1) - 2) 2,575.4 2,680.6 2,680.6 2,838.2 3,101.0 3,206.2 3,416.4 3,574.1 4,257.4 5,150.9 6,202.1
(Prepared by the Survey Team)
(2) Transformer Losses
Table 5.3-4 shows the result of transformer loss calculations with the following conditions:
- Iron loss value of a typical transformer: 40.2 kW at 31.5 MVA base
67.7 kW at 63.0 MVA base
- Copper loss value of a typical transformer: 157.0 kW at 31.5 MVA base
270.0 kW at 63.0 MVA base
- Calculation formula: as shown in Sub-section 5.1.2 (2)
Table 5.3-4 Transformer Loss Reduction by PJT-2
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (Trincomalee)
1) Iron loss (40.2 kW) 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1
2) Copper loss (157 kW@100%) 2,767.7 2,958.7 3,013.9 3,307.3 3,691.5 3,860.6 4,251.0 4,691.8 5,440.7 6,310.8 7,307.5
3) Total TR loss (MWh/year) 3,436.8 3,627.8 3,683.0 3,976.4 4,360.6 4,529.7 4,920.1 5,360.9 6,109.8 6,979.9 7,976.6
With Project (Trincomalee)
4) Iron losses (40.2 kW) 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1
5) Copper loss (157 kW@100%) 155.1 180.0 187.4 224.1 274.7 296.4 354.1 426.4 471.0 491.2 509.5
6) Total TR loss (MWh/year) 824.2 849.1 856.5 893.2 943.8 965.4 1,023.2 1,095.5 1,140.1 1,160.2 1,178.6
(Kappalthurai)
7) Iron loss (67.7 kW) 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,334.4 1,334.4 1,334.4
8) Copper loss (270 kW@100%) 693.2 721.9 730.1 777.9 839.4 867.5 925.0 984.4 776.8 940.4 1,134.4
9) Total loss (MWh/year) 1,820.0 1,848.7 1,856.9 1,904.7 1,966.2 1,994.3 2,051.8 2,111.2 2,111.2 2,274.7 2,468.8
Loss reduction (MWh/year)
3) – 6) – 9) 792.6 930.0 969.6 1,178.5 1,450.6 1,569.9 1,845.1 2,154.2 2,858.5 3,544.9 4,329.2
(Prepared by the Survey Team)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 12
5.4 Construction of Kerawalapitiya GS (PJT-3)
Table 5.4-1 shows the demand forecast for Kotugoda GS without construction of
Kerawalapitiya GS. As shown in the forecast, the loading of Kotugoda GS is expected to be
103% in 2021.
Table 5.4-1 Demand Forecast for Kotugoda GS
Grid
Substation
Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Kotugoda 183* - 123.6 133.4 140.2 153.3 166.5 175.2 188.0 201.0 201.1 217.4 234.1
(Prepared by the Survey Team based on CEB’s forecast)
Note *: Initial transformer capacity is 2 x 60 MVA and 2 x 31.5 MVA.
To share the increasing needs of minimizing the MV distribution line losses and to reduce
loading of Kotugoda GS, it is proposed to construct a new GS in Kerawalapitiya, which will
be installed with two sets of 35 MVA transformers and eight 33 kV feeders. Table 5.4-2
shows the demand forecast with the proposed Kerawalapitiya GS.
Table 5.4-2 Demand Forecast for Kotugoda and Kerawalapitiya GSs
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Kotugoda 183 - 94.1 102.9 109.2 121.3 133.5 141.8 130.8 143.0 141.7 156.3 171.6
Kerawalapitiya - 3 x 35 29.5 30.5 31.0 32.0 33.0 33.4 57.2 58.0 59.4 61.1 62.5
(Prepared by the Survey Team based on CEB’s forecast)
Based on the above forecast, the Survey Team calculated the loss reduction values on MV
lines, on transformers, and by static capacitors for comparison between “with” and “without”
the project.
(1) MV Line Losses
Table 5.4-3 shows the result of MV line loss calculations with the following conditions:
- MV line length: 10 km without the project, and 5 km with the project
- MV line conductor size: ACSR Lynx
- Number of MV lines: double-circuit between Kerawalapitiya and Kotugoda GSs
- Calculation formula: as shown in Sub-section 5.1.2 (1)
Table 5.4-3 MV Line Loss Reduction by PJT-3
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (MV line 10 km)
1) Annual MV line losses (MWh/year) 2,155.0 2,260.1 2,365.2 2,522.9 2,680.6 2,733.1 8,041.7 8,251.9 8,672.4 9,198.0 9,618.5
With project (MV line 5 km)
2) Annual MV line losses (MWh/year) 1,051.2 1,156.3 1,156.3 1,261.4 1,314.0 1,366.6 3,994.6 4,152.2 4,309.9 4,572.7 4,783.0
Loss reduction (MWh/year) : 1) - 2) 1,103.8 1,103.8 1,208.9 1,261.4 1,366.6 1,366.6 4,047.1 4,099.7 4,362.5 4,625.3 4,835.5
(Prepared by the Survey Team)
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 13
(2) Transformer Losses
Table 5.4-4 shows the result of transformer loss calculations with the following conditions:
- Iron loss value of a typical transformer: 40.2 kW at 31.5 MVA base
45.0 kW at 35.0 MVA base
67.7 kW at 60.0 MVA base
- Copper loss value of a typical transformer: 157.0 kW at 31.5 MVA base
157.0 kW at 35.0 MVA base
270.0 kW at 60.0 MVA base
- Calculation formula: as shown in Sub-section 5.1.2 (2)
Table 5.4-4 Transformer Loss Reduction by PJT-3
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (Kotugoda)
1) Iron loss (40.2 & 67.7 kW) 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9
2) Copper loss (157 & 270 kW@100%) 1,032.3 1,202.7 1,328.2 1,588.1 1,873.2 2,074.3 2,388.3 2,730.3 2,732.8 3,193.9 3,703.1
3) Total TR loss (MWh/year) 2,828.2 2,998.5 3,124.1 3,383.9 3,669.1 3,870.2 4,184.1 4,526.2 4,528.7 4,989.8 5,499.0
With Project (Kotugoda)
4) Iron losses (40.2 & 67.7 kW) 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9 1,795.9
5) Copper loss (157 & 270 kW@100%) 598.3 715.5 805.7 994.2 1,204.3 1,358.9 1,156.3 1,381.8 1,356.8 1,650.8 1,989.8
6) Total TR loss (MWh/year) 2,394.2 2,511.4 2,601.6 2,790.0 3,000.2 3,154.8 2,952.2 3,177.7 3,152.7 3,446.7 3,785.7
(Kerawalapitiya)
7) Iron loss (45.0 kW) 749.0 749.0 749.0 749.0 749.0 749.0 749.0 749.0 749.0 749.0 749.0
8) Copper loss (157 kW@100%) 147.8 158.0 163.2 173.9 184.9 189.4 555.5 571.3 599.2 634.0 663.4
9) Total loss (MWh/year) 896.7 906.9 912.2 922.8 933.9 938.4 1,304.5 1,320.3 1,348.2 1,383.0 1,412.4
Loss reduction (MWh/year): 3) – 6) – 9) -462.8 -419.8 -389.8 -328.9 -265.0 -222.9 -72.5 28.3 27.8 160.1 300.9
(Prepared by the Survey Team)
(3) Loss Reduction by Static Capacitors
Table 5.4-5 shows the result of loss reduction calculations by static capacitors with the
following conditions:
- Capacity : 4 sets x 5 MVar
- MVar switching value: 1 MVar step
- Calculation formula: as shown in Sub-section 5.1.2 (3)
Table 5.4-5 Loss Reduction by Static Capacitors
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
1) Active power (MW) 26.7 27.6 28.0 28.9 29.8 30.2 51.7 52.4 53.7 55.2 56.5
2) Reactive power forecast (MVar) 12.6 13.0 13.2 13.7 14.1 14.3 24.4 24.8 25.4 26.1 26.7
3) Apparent power (MVA) 29.5 30.5 31.0 32.0 33.0 33.4 57.2 58.0 59.4 61.1 62.5
4) Power factor 0.904 0.905 0.905 0.904 0.904 0.904 0.904 0.904 0.904 0.904 0.904
5) SC (5 MVar x 4 @ 1MVar Step) 12.0 13.0 13.0 13.0 14.0 14.0 20.0 20.0 20.0 20.0 20.0
6) Improved reactive power (MVar) = 2) - 5) 0.6 0.0 0.2 0.7 0.1 0.3 4.4 4.8 5.4 6.1 6.7
7) Improved apparent power (MVA) 26.7 27.6 28.0 28.9 29.8 30.2 51.9 52.6 54.0 55.5 56.9
8) Improved power factor 1.000 1.000 1.000 1.000 1.000 1.000 0.996 0.996 0.995 0.994 0.993
Loss reduction (MW/year) 542.5 559.8 569.4 596.2 614.0 623.4 983.1 995.3 1,000.3 1,005.2 1,007.4
(Prepared by the Survey Team)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 14
5.5 Veyangoda – Kirindiwela – Padukka 220 kV TL (PJT-5)
5.5.1 Power Flow Calculations for 2015 Network
(1) Conditions
1) Scope of the project: as described in Section 3.2.5.
2) Basic system configurations: 2015 network data provided by CEB
3) Electricity demand: night peak demand in 2015 provided by CEB
4) Cases: with and without the project
“Without the project” means substation demands in 2015 are to be applied for the
calculation, but the system configuration is same as the existing network in 2012.
(2) Results
Figures 5.5-1 (1) and 5.5-1 (2) (attached at the end of this chapter) show the results of the
calculations for with/without cases, respectively. As shown in Figure 5.5-1 (1), there is no
serious problem in the load flow on the grid under normal operating conditions. Table 5.5-1
summarizes the results.
Table 5.5-1 Results of Calculations for PJT-5 in 2015 --------------------------------------------------------------------------------------------------------------------------------------------- FROM TO TO TO TO (IN MW/MVAR) GENERATION INDUCTN TO BUS BUS GNE LINE FROM SYNCHRN / INDUCTN MOTORS LOAD SHUNT DEVICES SHUNT CHARGING LOSSES --------------------------------------------------------------------------------------------------------------------------------------------- With Project 3106.7 0.0 0.0 3039.1 0.0 0.0 0.0 0.0 67.6 410.7 0.0 0.0 1321.2 -998.1 0.0 0.0 599.4 687.1 --------------------------------------------------------------------------------------------------------------------------------------------- Without Project 3108.4 0.0 0.0 3039.1 0.0 0.0 0.0 0.0 69.3 (+1.7 MW) 431.2 0.0 0.0 1321.2 -996.2 0.0 0.0 587.9 694.0 --------------------------------------------------------------------------------------------------------------------------------------------- (Prepared by the Survey Team)
As shown in the above table, compared with the result of “with the project” case, active
power loss of “without the project” case increased by 1.7 MW.
5.5.2 Power Flow Calculations for 2020 Network
(1) Conditions
1) Basic system configurations: 2020 network data provided by CEB
2) Electricity demand: day peak demand in 2020 provided by CEB
3) Cases: with and without the project
“Without the project” means substation demands in 2020 are to be applied for the
calculation, but the system configuration is same as the existing network in 2012.
(2) Results
Figures 5.5-2 (1) and 5.5-2 (2) (attached at the end of this chapter) show the results of the
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 15
calculations for with/without cases, respectively. As shown in Figure 5.3-2 (1), there is no
serious problem in the load flow on the grid under normal operating conditions. Table 5.5-2
summarizes the results.
Table 5.5-2 Results of Calculations for PJT-5 in 2020 --------------------------------------------------------------------------------------------------------------------------------------------- FROM TO TO TO TO (IN MW/MVAR) GENERATION INDUCTN TO BUS BUS GNE LINE FROM SYNCHRN / INDUCTN MOTORS LOAD SHUNT DEVICES SHUNT CHARGING LOSSES --------------------------------------------------------------------------------------------------------------------------------------------- With Project 4266.5 0.0 0.0 4175.0 0.0 0.0 0.0 0.0 91.5 1192.3 0.0 0.0 1808.7 -1120.6 0.0 0.0 739.8 1244.1 --------------------------------------------------------------------------------------------------------------------------------------------- Without Project 4272.2 0.0 0.0 4175.0 0.0 0.0 0.0 0.0 97.2 (+5.7 MW) 1217.3 0.0 0.0 1808.7 -1119.7 0.0 0.0 729.2 1257.6 --------------------------------------------------------------------------------------------------------------------------------------------- (Prepared by the Survey Team)
As shown in the table above, compared with the result of “with the project” case, active
power loss of “without the project” case increased by 5.7 MW.
5.3.3 Transmission Loss Reduction Calculations
Based on the results of the power flow calculations shown in Tables 5.5-1 and 5.5-2,
transmission loss reduction values are estimated with the same conditions described Section
5.2.4. Table 5.5-3 shows the results of the loss reduction calculations for PJT-5.
Table 5.5-3 Loss Reduction Calculations for PJT-5
unit 2015 2016 2017 2018 2019 2020
1) with Project MW loss MW 67.6 - - - - 91.5 2) without Project MW loss MW 69.3 - - - - 97.2 differentia 2) - 1) MW loss saving MW 1.7 2.2 2.8 3.5 4.5 5.7 Annual savings MWh loss saving MWh 5,610.6 7,146.5 9,102.8 11,594.8 14,768.9 18,811.9 (Prepared by the Survey Team)
5.5.4 Substation Loss Reduction Calculations
Table 5.5-4 shows the demand forecast for Biyagama GS and Kosgama GS without
construction of Kirindiwela GS. As shown in the forecast, the loading of Kosgama GS is
expected to be 101% in 2015, and Biyagama GS is expected to be 101% in 2021.
Table 5.5-4 Demand Forecast for Biyagama and Kosgama GSs
Grid
Substation
Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Biyagama 2 x 60 - 92.4 96.8 98.4 104.6 111.7 114.8 121.1 125.6 142.7 145.8 149.0
Kosgama 2 x 31.5 1 x 31.5 64.1 66.6 67.2 70.9 75.3 77.4 81.4 88.0 101.2 107.6 114.1
(Prepared by the Survey Team based on CEB’s forecast)
To share the increasing needs of minimizing the MV distribution line losses, and to reduce
loading of Biyagama and Kosgama GS, it is proposed to construct a new GS at Kirindiwela,
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 16
which will be installed with two sets of 31.5 MVA transformers and eight 33 kV feeders.
Table 5.5-5 shows the demand forecast with the proposed new Kirindiwela GS.
Table 5.5-5 Demand Forecast for Biyagama, Kosgama, and Kirindiwela GSs
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Biyagama 2 x 60 - 74.6 78.2 79.0 84.3 90.6 92.8 98.2 99.3 108.5 110.7 113.0
Kosgama 2 x 31.5 1 x 31.5 46.3 48.0 47.8 50.6 54.2 55.4 58.5 61.7 67.0 72.5 78.1
Kirindiwela - 3 x 31.5* 35.6 37.2 38.8 40.5 42.2 44.0 45.8 52.5 68.4 70.1 71.9
Note *: Initial transformer capacity is 2 x 31.5 MVA, and 1 x 31.5 MVA transformer is to be added in 2023.
(Prepared by the Survey Team based on CEB’s forecast)
Based on the above demand forecast, the Survey Team calculated the loss reduction values
on MV distribution lines, transformers, and static capacitors for comparison between “with”
and “without” the project.
(1) MV Line Losses
Table 5.5-6 shows the result of MV line loss calculations with the following conditions:
- MV line length: 30 km (from Biyagama and Kosgama: each 15 km) without the project,
and 15 km (7.5 km each) with the project
- MV line conductor size: ACSR Lynx
- Number of MV lines: single-circuit each
- Calculation formula: as shown in Sub-section 5.1.2 (1)
Table 5.5-6 MV Line Loss Reduction by PJT-5
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (MV line 30 km)
1) Annual MV line 1 losses (MWh/year) 578.2 630.7 683.3 735.8 841.0 893.5 946.1 1,261.4 2,155.0 2,260.1 2,365.2
2) Annual MV line 2 losses (MWh/year) 578.2 630.7 683.3 735.8 841.0 893.5 946.1 1,261.4 2,155.0 2,260.1 2,365.2
3) Annual loss total (MWh/year) : 1) + 2) 1,156.3 1,261.4 1,366.6 1,471.7 1,681.9 1,787.0 1,892.2 2,522.9 4,309.9 4,520.2 4,730.4
With project (MV line 15 km)
4) Annual MV line 1 losses (MWh/year) 315.4 315.4 367.9 367.9 420.5 420.5 473.0 630.7 1,051.2 1,156.3 1,208.9
5) Annual MV line 2 losses (MWh/year) 315.4 315.4 367.9 367.9 420.5 420.5 473.0 630.7 1,051.2 1,156.3 1,208.9
6) Annual loss total (MWh/year) : 4) + 5) 630.7 630.7 735.8 735.8 841.0 841.0 946.1 1,261.4 2,102.4 2,312.6 2,417.8
Loss reduction (MWh/year) : 3) -6) 525.6 630.7 630.7 735.8 841.0 946.1 946.1 1,261.4 2,207.5 2,207.5 2,312.6
(Prepared by the Survey Team)
(2) Transformer Losses
Table 5.5-7 shows the result of transformer loss calculations with the following conditions:
- Iron loss value of a typical transformer: 40.2 kW at 31.5 MVA base
67.7 kW at 60.0 MVA base
- Copper loss value of a typical transformer: 157.0 kW at 31.5 MVA base
270.0 kW at 60.0 MVA base
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 17
- Calculation formula: as shown in Sub-section 5.1.2 (2)
Table 5.5-7 Transformer Loss Reduction by PJT-5
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (Biyagama)
1) Iron loss (67.7 kW) 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8
2) Copper loss (270 kW@100%) 848.4 931.2 962.2 1,086.3 1,239.8 1,309.7 1,457.4 1,566.5 2,023.6 2,111.0 2,204.8
3) Total TR loss (MWh/year) 1,975.2 2,058.0 2,089.0 2,213.1 2,366.6 2,436.5 2,584.2 2,693.3 3,150.4 3,237.8 3,331.6
(Kosgama)
4) Iron loss (40.2 kW) 669.1 669.1 669.1 669.1 669.1 792.3 792.3 792.3 792.3 792.3 792.3
5) Copper loss (157 kW@100%) 861.4 929.8 946.8 1,052.3 1,188.6 837.2 926.1 1,081.1 1,431.4 1,616.6 1,818.0
6) Total TR loss (MWh/year) 1,530.5 1,598.9 1,615.9 1,721.4 1,857.7 1,629.5 1,718.4 1,873.5 2,223.7 2,409.0 2,610.3
With Project (Biyagama)
7) Iron losses (67.7 kW) 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8 1,126.8
8) Copper loss (270 kW@100%) 553.1 607.7 620.1 706.2 815.7 855.7 958.2 979.8 1,169.9 1,217.7 1,269.0
9) Total TR loss (MWh/year) 1,679.9 1,734.5 1,746.9 1,833.0 1,942.5 1,982.5 2,085.0 2,106.6 2,296.7 2,344.5 2,395.8
(Kosgama)
10) Iron loss (40.2 kW) 669.1 669.1 669.1 669.1 669.1 792.3 792.3 792.3 792.3 792.3 792.3
11) Copper loss (157 kW@100%) 449.4 483.0 479.0 536.8 615.8 428.9 478.2 532.0 627.4 734.6 852.6
12) Total loss (MWh/year) 1,118.5 1,152.1 1,148.0 1,205.9 1,284.9 1,221.2 1,270.6 1,324.4 1,419.7 1,527.0 1,644.9
(Kirindiwela)
13) Iron loss (40.2 kW) 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 792.3 792.3 792.3
14) Copper loss (157 kW@100%) 265.7 290.1 315.6 343.9 373.3 405.9 439.8 577.8 653.9 686.8 722.4
15) Total loss (MWh/year) 934.8 959.2 984.7 1,013.0 1,042.4 1,074.9 1,108.9 1,246.9 1,446.2 1,479.1 1,514.8
Loss reduction (MWh/year)
[3) + 6)] –[ 9) + 12) + 15)] -227.4 -189.0 -174.9 -117.3 -45.5 -212.6 -161.8 -111.1 211.5 296.1 386.5
(Prepared by the Survey Team)
(3) Loss Reduction by Static Capacitors
Table 5.5-8 shows the result of loss reduction calculations by static capacitors with the
following conditions:
- Capacity : 2 sets x 5 MVar
- MVar switching value: 1 MVar step
- Calculation formula: as shown in Sub-section 5.1.2 (3)
Table 5.5-8 Loss Reduction by Static Capacitors
Cases 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
1) Active power (MW) 31.9 33.3 34.7 36.2 37.8 39.4 41.0 47.0 61.2 62.7 64.3
2) Reactive power forecast (MVar) 15.9 16.6 17.3 18.1 18.8 19.6 20.4 23.4 30.5 31.3 32.1
3) Apparent power (MVA) 35.6 37.2 38.8 40.5 42.2 44.0 45.8 52.5 68.4 70.1 71.9
4) Power factor 0.895 0.895 0.895 0.894 0.895 0.895 0.895 0.895 0.895 0.895 0.895
5) SC (5 MVar x 2 @ 1MVar Step) 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0
6) Improved reactive power (MVar) = 2) - 5) 5.9 6.6 7.3 8.1 8.8 9.6 10.4 13.4 20.5 21.3 22.1
7) Improved apparent power (MVA) 32.4 33.9 35.5 37.1 38.8 40.6 42.3 48.9 64.5 66.2 68.0
8) Improved power factor 0.983 0.981 0.979 0.976 0.974 0.972 0.969 0.962 0.948 0.947 0.946
Loss reduction (MW/yare) 572.7 568.1 562.4 558.8 544.6 536.2 527.6 494.0 420.6 414.8 407.6
(Prepared by the Survey Team)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 18
5.6 Construction of Kalutara GS (PJT-7)
Table 5.6-1 shows the demand forecast for Panadura GS and Matugama GS without the
construction of Kalutara GS. As shown in the forecast, the loading of Panadura GS is
expected to be 80% in 2023, and Matugama GS is expected to be 83% in 2021.
Table 5.6-1 Demand Forecast for Panadura and Matugama GSs
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Panadura 3×31.5 - 60.9 56.3 56.5 59.2 61.9 62.6 65.0 69.1 75.6 81.5 88.3
Matugama 2×31.5 - 64.0 72.3 65.7 69.0 72.8 74.5 78.0 80.4 83.9 88.0 92.0
(Prepared by the Survey Team based on CEB’s forecast)
To share the increasing needs of minimizing the MV distribution line losses and to reduce
loading of Panadura and Matugama GSs, it is proposed to construct a new GS in Kalutara,
which will be installed with two sets of 31.5 MVA transformers and eight 33 kV feeders.
Table 5.6-2 shows the demand forecast with the proposed new Kalutara GS.
Table 5.6-2 Demand Forecast for Panadura, Matugama, and Kalutara GSs
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Panadura 3×31.5 - 60.9 50.2 50.2 52.7 55.3 55.8 58.1 60.5 64.8 69.1 73.7
Matugama 2×31.5 - 64.0 66.2 59.4 62.5 66.2 67.7 71.1 71.8 73.1 75.6 77.4
Kalutara - 2 x 31.5 0.0 12.2 12.5 12.9 13.2 13.5 13.7 17.1 21.5 24.8 29.1
(Prepared by the Survey Team based on CEB’s forecast)
Based on the above demand forecast, the Survey Team calculated the loss reduction values
on MV lines and on transformers for comparison between “with” and “without” the project.
(1) MV Line Losses
Table 5.6-3 shows the result of MV line loss calculations with the following conditions:
- MV line length: 32 km (from Panadura: 12 km, from Matugama: 20 km) without the
project, and 16 km (from Panadura: 6 km, from Matugama: 10 km) with the project
- MV line conductor size: ACSR Lynx
- Number of MV lines: single-circuit each
- Calculation formula: as shown in Sub-section 5.1.2 (1)
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 19
Table 5.6-3 MV Line Loss Reduction by PJT-7
Cases 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (MV line 32 km)
1) Annual MV line 1 losses (MWh/year) 105.1 105.1 105.1 105.1 105.1 157.7 210.2 315.4 420.5 578.2
2) Annual MV line 2 losses (MWh/year) 420.5 420.5 420.5 473.0 473.0 473.0 788.4 1,208.9 1,629.4 2,260.1
3) Annual loss total (MWh/year) : 1) + 2) 525.6 525.6 525.6 578.2 578.2 630.7 998.6 1,524.2 2,049.8 2,838.2
With project (MV line 16 km)
4) Annual MV line 1 losses (MWh/year) 52.6 52.6 52.6 52.6 52.6 52.6 105.1 157.7 210.2 315.4
5) Annual MV line 2 losses (MWh/year) 210.2 210.2 210.2 210.2 262.8 262.8 367.9 630.7 841.0 1,103.8
6) Annual loss total (MWh/year) : 4) + 5) 262.8 262.8 262.8 262.8 315.4 315.4 473.0 788.4 1,051.2 1,419.1
Loss reduction (MWh/year) : 3) -6) 262.8 262.8 262.8 315.4 262.8 315.4 525.6 735.8 998.6 1,419.1
(Prepared by the Survey Team)
(2) Transformer Losses
Table 5.6-4 shows the result of transformer loss calculations with the following conditions:
- Iron loss value of a typical transformer: 40.2 kW at 31.5 MVA base
- Copper loss value of a typical transformer: 157.0 kW at 31.5 MVA base
- Calculation formula: as shown in Sub-section 5.1.2 (2)
Table 5.6-4 Transformer Loss Reduction by PJT-7
Cases 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (Panadura)
1) Iron loss (40.2 kW) 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3
2) Copper loss (157 kW@100%) 443.0 445.4 488.9 535.5 546.8 589.6 666.4 797.8 928.3 1,088.6
3) Total TR loss (MWh/year) 1,235.4 1,237.8 1,281.3 1,327.8 1,339.2 1,381.9 1,458.7 1,590.1 1,720.6 1,880.9
(Matugama)
4) Iron loss (40.2 kW) 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3
5) Copper loss (157 kW@100%) 730.6 602.3 664.4 740.8 774.6 849.3 902.4 982.6 1,082.3 1,181.6
6) Total TR loss (MWh/year) 1,523.0 1,394.7 1,456.7 1,533.1 1,567.0 1,641.6 1,694.7 1,775.0 1,874.6 1,974.0
With Project (Panadura)
7) Iron losses (40.2 kW) 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3
8) Copper loss (157 kW@100%) 352.2 352.2 388.2 427.4 435.2 471.8 511.5 586.8 667.3 759.2
9) Total TR loss (MWh/year) 1,144.5 1,144.5 1,180.5 1,219.8 1,227.5 1,264.1 1,303.9 1,379.2 1,459.6 1,551.5
(Matugama)
10) Iron loss (40.2 kW) 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3
11) Copper loss (157 kW@100%) 612.4 493.2 546.0 612.4 640.6 706.6 720.5 746.7 798.8 837.2
12) Total loss (MWh/year) 1,404.8 1,285.5 1,338.3 1,404.8 1,432.9 1,498.9 1,512.9 1,539.1 1,591.1 1,629.5
(Kalutara)
13) Iron loss (40.2 kW) 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1 669.1
14) Copper loss (157 kW@100%) 31.2 32.8 34.9 36.5 38.2 39.4 61.3 96.9 129.0 177.5
15) Total loss (MWh/year) 700.3 701.8 704.0 705.6 707.3 708.5 730.4 766.0 798.1 846.6
Loss reduction (MWh/year)
[3) + 6)] – [9) + 12 + 15)] -491.3 -499.4 -484.8 -469.2 -461.6 -447.9 -393.7 -319.2 -253.6 -172.8
(Prepared by the Survey Team)
As shown in the above results, although annual amounts of composite loss reduction values
are negative from 2016 to 2021, these will increase from 2022.
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 20
5.7 Construction of Battaramulla GS (PJT-8)
Table 5.7-1 shows the demand forecast for Sri Jayawardhanepura GS without construction
of Battaramulla GS. As shown in the demand forecast, the loading of Sri
Jayawardhanepura GS is expected to be 101% in 2022.
Table 5.7-1 Demand Forecast for Sri Jayawardhanepura GS
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Sri Jayawar. 3×31.5 - 75.6 77.9 78.5 81.9 86.3 88.0 91.7 95.7 101.8 108.2 114.6
(Prepared by the Survey Team based on CEB’s forecast)
To share the increasing needs of minimizing the MV distribution line losses and to reduce
loading of Sri Jayawardhanepura GS, it is proposed to construct a new GS in Battaramulla,
which will be installed with two sets of 45 MVA transformers and eight 33 kV feeders. Table
5.7-2 shows the demand forecast with the proposed new Battaramulla GS.
Table 5.7-2 Demand Forecast for Sri Jayawardhanepura and Battaramulla GSs
Grid Substation Capacity (MVA) Forecast Loading (MVA)
Present Proposed 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Sri Jayawar. 3×31.5 - 75.6 77.9 51.5 53.9 57.1 57.5 60.0 62.6 67.4 72.3 77.3
Battaramulla - 2 x 45 0.0 0.0 27.0 28.0 29.2 30.5 31.7 33.1 34.4 35.9 37.3
(Prepared by the Survey Team based on CEB’s forecast)
Based on the above demand forecast, the Survey Team calculated the loss reduction values
on MV lines and on transformers for comparison between “with” and “without” the project.
(1) MV Line Losses
Table 5.7-3 shows the result of MV line loss calculations with the following conditions:
- MV line length: 10 km without the project and 5 km with the project
- MV line conductor size: ACSR Lynx
- Number of MV lines: double-circuit between Battaramulla and Sri Jaya’ GSs
- Calculation formula: as shown in Sub-section 5.1.2 (1)
Table 5.7-3 MV Line Loss Reduction by PJT-8
Cases 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (MV line 10 km)
1) Annual MV line losses (MWh/year) 1,787.0 1,944.7 2,102.4 2,260.1 2,470.3 2,680.6 2,890.8 3,153.6 3,416.4
With project (MV line 5 km)
2) Annual MV line losses (MWh/year) 893.5 946.1 1,051.2 1,156.3 1,208.9 1,366.6 1,471.7 1,576.8 1,734.5
Loss reduction (MWh/year) : 1) - 2) 893.5 998.6 1,051.2 1,103.8 1,261.4 1,314.0 1,419.1 1,576.8 1,681.9
(Prepared by the Survey Team)
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 21
(2) Transformer Losses
Table 5.7-4 shows the result of transformer loss calculations with the following conditions:
- Iron loss value of a typical transformer: 40.2 kW at 31.5 MVA base
48.2 kW at 45 MVA base
- Copper loss value of a typical transformer: 157.0 kW at 31.5 MVA base
189.0 kW at 45 MVA base
- Calculation formula: as shown in Sub-section 5.1.2 (2)
Table 5.7-4 Transformer Loss Reduction by PJT-8
Cases 2017 2018 2019 2020 2021 2022 2023 2024 2025
Without Project (Sri Jayawar.)
1) Iron loss (40.2 kW) 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3
2) Copper loss (157 kW@100%) 861.3 937.5 1,040.8 1,082.3 1,175.3 1,280.0 1,448.2 1,636.3 1,835.5
3) Total TR loss (MWh/year) 1,653.6 1,729.9 1,833.2 1,874.6 1,967.7 2,072.3 2,240.6 2,428.6 2,627.9
With Project (Sri Jayawar.)
4) Iron losses (40.2 kW) 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3 792.3
5) Copper loss (157 kW@100%) 370.7 406.1 455.6 462.1 503.1 547.6 634.9 730.6 835.1
6) Total TR loss (MWh/year) 1,163.1 1,198.4 1,248.0 1,254.5 1,295.4 1,340.0 1,427.2 1,523.0 1,627.5
(Battaramulla)
7) Iron loss (48.2 kW) 802.2 802.2 802.2 802.2 802.2 802.2 802.2 802.2 802.2 8) Copper loss (189 kW@100%) 90.1 96.9 105.4 115.0 124.3 135.5 146.3 159.4 172.0 9) Total loss (MWh/year) 892.4 899.2 907.7 917.3 926.5 937.7 948.6 961.6 974.3
Loss reduction (MWh/year)
3) – 6) – 9) -401.8 -367.7 -322.4 -297.2 -254.3 -205.4 -135.2 -55.9 26.1
(Prepared by the Survey Team)
5.8 Applicability of Japanese Technologies
(1) Gas-insulated Transformers
Conventional transformers with the latest technology such as ‘top-runner transformers’,
which use amorphous cores, can be regarded as the recommended Japanese technology.
However at present, such transformers with capacity of about 2 MVA scale can be produced
in general. As far as application of Japanese technology for the conventional transformers
is concerned, a special method cannot be identified for the substation facilities. However,
Japanese-made transformers are generally recommended for being highly efficient, despite
being more costly compared to others. This is attained not because of a special technique,
but due to high quality management technique adopted such as the Total Quality
Management (TQM). In this regard, the same performance can be attained in other
industrial countries such as Europe and the United States of America (USA) in terms of
production value, provided that detailed specifications prepared in advance are custom-
made to meet manufacturers’ requirements.
On the other hand, Japanese manufacturers are producing gas-insulated transformers
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 22
(GITs) that utilize the features of SF6 gas instead of insulation oil, and have coordinative
ability with environmental conditions. GITs are regarded for having outstanding non-
flammability characteristics, insulation effects, and safety features. Additionally, SF6 gas-
insulated switchgear (GIS) incorporates the most advanced SF6 gas application
technologies. Fully gas-insulated substations, adopting a combination of GITs and GIS,
offer extra ease for safety assurance, accident prevention, and ease of inspection and
maintenance. Concurrently, substations of this type are ideal for applications involving the
needs for prevention of environmental pollution, or compactness of installation spaces.
Advantages of GITs are as follows:
1) Non-flammability
GITs using incombustible SF6 gas as insulation and cooling medium need not require
installation of firefighting equipment in the transformer room.
2) Tank-explosion prevention
Pressure tank of GIT can withstand the pressure rise in case of internal fault.
3) Compactness
By directly coupling with GIS, substation area can be minimized.
4) Easy installation
Oil or liquid purifying process is not necessary.
5) Easy inspection and maintenance work
Only SF6 gas pressure shall be basically monitored during periodic inspection.
6) Environmental friendly
Use of SF6 gas eliminates the risk of oil leakage.
Port and Colombo L GSs are planned to be constructed very close to the sea under the
Colombo City Transmission Development (PJT-1). Under such circumstances, it is
preferred that main transformers be installed inside the substation building to prevent
unpredictable accidents of transformers caused by exposure to salt. GITs can be installed
inside the building as these have compact features.
(2) Low-loss Conductors
Japanese-made low-loss type conductors such as LL-ACSR/AC can be applied to both new
construction and reconstruction of important overhead transmission lines. Low-loss type
conductors have the same outer shape as normal ACSR conductors; however, their
aluminum cross-section area can be larger by 20%–30% as shown in Table 5.8-1, if reducing
electrical resistance is intended. These conductors contribute to transmission loss
reduction especially on heavily loaded transmission lines.
Chapter 5 Power Flow and Loss Reduction Calculations
5 - 23
Table 5.8-1 Specification of Conductors
items units ACSR Zebra LL-ACSR/14AC 550 mm2
Type - conventional ACSR low loss type
Component of stranded wires nos/mm 54/3.18-AL 7/3.18-St
12/TW-AL 9/TW-AL
7/2.70-14AC Nominal diameter mm 28.6 28.6 Cross sectional area mm2 Al: 428.9
St: 55.6 Total: 484.5
Al: 550.4 AC: 40.5
Total: 590.9 Nominal weight kg/km 1,621 1,814 DC resistance at 20 Ω/km 0.0674 0.0519 Minimum breaking load KN 131.9 140.9 Modulus of elasticity GPa 78.4 69.1 Coefficient of linear expansion /deg.C 19.5 x 10-6 21.2 x 10-6 Current carrying capacity (AC resistance)
A (Ω/km) 649 A (0.0854) at 75 deg.C 649 (0.0632) at 70 deg.C
Cross section -
(Prepared by the Survey Team)
As a case study, the Survey Team studied the situation where planned 220 kV Veyangoda –
Kirindiwela (17.5 km) and Kirindiwela – Padukka (20.0 km) double-circuit transmission lines
apply LL-ACSR conductors instead of ACSR Zebra, with the following assumptions:
1) Peak loads on the line in 2015 and 2020 are taken from the results of power flow
calculations as shown in Figures 5.5-1 (1) and 5.5-2 (1), respectively. Loads in the
other years are proportionately calculated from the obtained results.
2) Power factor: 0.85
3) Load factor: 0.55
4) Conductor resistances:
- ACSR Zebra: 0.0814 Ω/km (at 63 oC)
- LL-ACSR/14AC 550 mm2: 0.0621 Ω/km (at 61 oC)
5) Formula for calculating annual loss:
Annual loss = NC x L x NCC x R x I2 x (0.3 x LF + 0.7 x LF2) x 24 hrs x 356 days
Where: NC: Nos. of conductors/circuit
L: Line length (km)
NCC: Nos. of circuit
R: Conductor resistance (Ω/km)
I: Load current (A)
Data Collection Survey on Electricity Supply System Efficiency in Sri Lanka
5 - 24
LF: Load factor = 0.55
6) Annual loss savings after 2021 are assumed as constant.
7) Average generation cost applied for the study: 13.07 LKR/kWh (to be applied for
economic analysis described in Chapter 10)
8) Conductor costs
i) Unit prices: - ACSR Zebra: JPY 620,000/km
- LL-ACSR/14AC 550 mm2: JPY 870,000/km
ii) Conductor costs: Veyangoda – Kirindiwela (17.5 km, 2-circuit, double-bundled) - ACSR Zebra: JPY 136.7 million (JPY 620,000 x 17.5 km x 12 nos. x 1.05)
- LL-ACSR: JPY 191.8 million (JPY 870,000 x 17.5 km x 12 nos. x 1.05)
- Cost gap: JPY 55.1 million
iii) Conductor costs: Kirindiwela – Padukka (20.0 km, 2-circuit, double-bundled) - ACSR Zebra: JPY 156.2 million (JPY 620,000 x 20.0 km x 12 nos. x 1.05)
- LL-ACSR: JPY 219.2 million (JPY 870,000 x 20.0 km x 12 nos. x 1.05)
- Cost gap: JPY 63.0 million
Table 5.8-2 shows the result of the case study.
Table 5.8-2 Result of Case Study
Items unit 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
1. Veyangoda-Kirindiwela Section
Peak loads per cct MW 57.8 67.7 79.3 92.9 108.8 127.5 127.5 127.5 127.5 127.5 127.5
Eq. current per cct A 178.0 209.0 245.0 287.0 336.0 394.0 394.0 394.0 394.0 394.0 394.0
Annual Losses on Zebra (2 cct) MWh 894.4 1,231.0 1,693.1 2,323.4 3,184.8 4,379.5 4,379.5 4,379.5 4,379.5 4,379.5 4,379.5
Annual Losses on LL-ACSR (2 cct) MWh 683.2 940.6 1,290.4 1,772.3 2,429.0 3,339.9 3,339.9 3,339.9 3,339.9 3,339.9 3,339.9
Annual loss sav ings MWh 211.2 290.4 402.6 551.2 755.8 1,039.6 1,039.6 1,039.6 1,039.6 1,039.6 1,039.6
Annual cost sav ings kLKR 2,760.7 3,795.9 5,262.5 7,203.6 9,878.0 13,587.6 13,587.6 13,587.6 13,587.6 13,587.6 13,587.6
eq.kJPY 1,634.3 2,247.2 3,115.4 4,264.5 5,847.8 8,043.9 8,043.9 8,043.9 8,043.9 8,043.9 8,043.9
Recoup the initial investment kJPY 53,490.7 51,243.5 48,128.1 43,863.6 38,015.8 29,971.9 21,928.1 13,884.2 5,840.3 -2,203.6 -10,247.4
2. Kirindiwela - Padukka Section
Peak loads per cct MW 67.4 75.1 83.7 93.4 104.1 116.0 116.0 116.0 116.0 116.0 116.0
Eq. current per cct A 208.0 232.0 259.0 288.0 321.0 358.0 358.0 358.0 358.0 358.0 358.0
Annual Losses on Zebra (2 cct) MWh 1,396.0 1,736.0 2,161.7 2,673.3 3,323.4 4,132.0 4,132.0 4,132.0 4,132.0 4,132.0 4,132.0
Annual Losses on LL-ACSR (2 cct) MWh 1,062.7 1,323.4 1,650.2 2,039.6 2,534.7 3,151.8 3,151.8 3,151.8 3,151.8 3,151.8 3,151.8
Annual loss sav ings MWh 333.3 412.5 511.6 633.7 788.8 980.2 980.2 980.2 980.2 980.2 980.2
Annual cost sav ings kLKR 4,356.7 5,391.9 6,686.0 8,282.0 10,309.3 12,811.2 12,811.2 12,811.2 12,811.2 12,811.2 12,811.2
eq.kJPY 2,579.1 3,192.0 3,958.1 4,902.9 6,103.1 7,584.2 7,584.2 7,584.2 7,584.2 7,584.2 7,584.2
Recoup the initial investment kJPY 60,420.9 57,228.8 53,270.7 48,367.8 42,264.7 34,680.5 27,096.2 19,512.0 11,927.8 4,343.6 -3,240.7 (Prepared by the Survey Team)
Although the initial cost of adopting LL-ACSR conductor is about 1.4 times that of ACSR
Zebra, the initial investments for both sections can be recouped within ten years and 11
years, respectively, as shown in the above table. Therefore, it is recommended to introduce
such low-loss conductors not only under the project but for planned transmission lines on
which heavy loads were forecasted.
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1.008
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0.987
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1
1
25.6
3
72.0
1
50.4
24.4
1
88.9
48.0
1
27.5
1
19.7
13.7
1
77.4
45.9
1
54.4
3
115.
0
0.0L
1
45.3
1
58.2
1
26.9
2 1
20.0
0.0L
1
45.1
19.2
1
53.8
15.7
1
38.7
18.7
1
50.1
1
29.4
1
64.8
1
40.9
13.4
20.
0
5.1
1.002
19.2
12.6
6.0
0.996
0.985
2.5
39.0
6.3
103.5
1.002
67.6
H
3560PANNI-3
1590SAPUGA-1
32.1
3830VEYAN-33
1250RANTE-1
5.7
38.
7
5.7
7.0
0.0
0.0
50.
4
50.4
3.2
3302KELAN-3B
15.9
SW
20.
0
15.
1
0.4
15.1
2.2
19.7
2.7
1.4
51.9
7.7
1
18.6
3.8
12.9
1
22.1
13.7
H
1
20.1
12.5
H
4.2
1
11.1
6.9H
1
15.7
9.7H
1
15.2
9.4H
1
8.5
5.3H
1
10.7
0.994
1.000
3880AMBALA
1.004
14.4
2.7
11.2
8.4
11.
2
10.
5
1
14.4
7.0
0.996
3900PANNAL
1.001
1
73.0
37.4
73.0
12.5
1
42.3
20.5
1.002
1.004
1
SW
10.
1
10.
1
0.989
10.
8
6.2
7.6
2.8
1.004
1650GALLE-1
0.0
0.0
0.0
3710TRINC-3
0.0
SW
30.
2
SW
3300KELAN-33
1.007
1
113.
0
2
70.0
H
0.0
23.2
0.998
1720KILINOCH-1
7.7
5.0
1.2
2.2
5.0
5.0
1
32.3
31.4
38.0 4.8
1
18.5
5.4 1
8.4
45.3
30.6
19.3
1
28.1
76.
0
48.6
48.6
77.4
59.5
22.2
12.
3
22.
0
9.7
22.2
12.
3
22.
0
1
44.1
9.0
SW
14.4
2.0
6.2
1.8
2.1
1
5.5
2.4
25.6
17.
4
25.
6
17.0
25.6
17.
4
25.
6
17.0
0.4
0.0
0.0
0.0
12.
1
18.2
43.4
10.1
43.
4
10.
1
7.8
59.5
67.2
34.4
24.6
11.1
7.0
1.002
SW
23.5
33.
7
23.0
1430COL_I_1
53.3
51.9
15.9
4430COL_I_11
1.006
2560PANNI-2
32.
0
38.
7
109.
5
11.5
3510SITHA-33
23.1
29.0
3.6
1
29.0
15.7
1.005
3.8
16.0
L
1.011
1440KATUNA-1
13.1
47.1
1
24.3
5.5
6.5
5.5
7.9
17.
2
7.9
16.9
25.
8
3.6
25.8
7.9
7.9
16.9
1.003
17.
2
71.6 5.0
71.
4
4.4
7.7
29.1
8.0
1450MAHO-1
3450MAHO-3 9.
6
1
25.7
25.8
1580KOTUG-1
0.991
15.0 6.4
7.7
5.3
1
15.0
5.5
0.994
1470VAUNAT-1
1.000
8.5
1
11.6
2.6
0.992
1
28.5
12.1
10.5
9.8
4.6
9.7
5.2
9.8
4.6
5.2
3460POLON-3
31.8
4.3
3.2
1.009
42.3
4.6
1.002
41.5
0.994
7.8
0.986
3490PALLEK-3
0.995
12.7
13.
4
1
12.7
5.8
6.4
7.6
6.3
6.7
6.4
6.3
6.7
SW
19.
8
1320NAULA-1
3320NAULA-3 2.
7
1
2.5
0.981
3330MONARA-312
.6
1
12.6
3.2
4.4
1340BELIAT-1
3340BELIAT-3
24.0
1
24.0
7.0
14.7
9.5
14.0
9.4
15.
3
9.4
15.
7 1
4.6
7.7
5.1
35.9
1.000
103
.5
4.4
32.
0
SW
40.3
1
18.2
44.
2
49.
5
33.5
H
64.5
H
10.
0
1820ATURU-1
1.003
1.013
5.4
SW
1.001
3551KOLON-3B
0.999
2.3
1
1.4H
1.001
3470VAUNAT-3
1.017
3780VALACH_3
70.0
H11
3.0
67.0
2225UPPER-KOTH-2
102.
7
10.
8
102
.4
9.6
102.
7
10.
8
102
.4
9.6
1
75.0
36.
3L
2
1
76.1
1980COL_B_1
1.027
10.7
12.
7
0.6
0.6
7.2
28.1
22.6
48.5
19.9
1
48.5
30.0
47.9
SW
1
SW
15.
230
.8 3
0.8
1.4
15.4
1.2
15.
4
1.5
14.
2
31.7
51.5
31.
7
31.7
51.5
31.
7
54.
6
3.5
19.
9
38.2
28.6
1.2
9.8
1530THULH-1
0.975
1655WELI-1
2.5
40.6 8.5
40.
4
8.9
40.6 8.5
40.
4
8.9
26.0
11.6
25.
9
11.
8
26.0
11.6
25.
9
11.
8
3655WELI-3
1.007
28.8
5.4
28.
8
6.8
SW
1
28.8
8.4
0.4
15.
1
38.0
3440KATUNA-3
47.1
7.4
0.979
0.992
1815N_CHILAW-1
1.008
9.6
5.5
8.1
5.5
78.
5
4.2
8.8
0.999
1.000
29.
0
2830VEYAN-2
8.2
40.9
321.
2
13.
2
316
.7
45.0
321.
2
13.
2
316
.7
45.0
214.
6
63.
5
212
.7
69.0
214.
6
63.
5
212
.7
166
.9
39.8
167.
3
40.
1
166
.9
39.8
167.
3
38.1
88.8
50.
9
88.
0
88.8
50.
9
102
.1
18.5
102
.110
2.1
14.
218
.5 6
5.2
65.2
65.
2
8.2
65.2
0.997
95.5
95.
3
10.1
9.4
1960MAHIYA
3960MAHIYA-3
26.7
40.4
24.
8
40.
4
1.3
3590SAPUG-3A
23.
9
59.5
1410KUKULE-1
97.
3
14.
6
97.5
35.
1
4.8
35.1
1500KOSGA-1
35.
1
35.1
4.1
4.1
6.6H
1970PADUKKA-1
59.
4
6.9
6.8
1120WIMAL-1
1.5
15.
4
16.6
30.8
47.
9
8.9
1300KELAN-1
38.1
1.019
7.6
1690HABAR-1
9.7
102
.6 7.9
102.
6
2.3
102
.6 7.9
102.
6
2.3
0.996
88.
0
2705NEWANU-2
145
.5
24.3
149.
2
22.
2
145
.5
24.3
149.
2
22.
2
2
250.
0
25.0
R
0.988
424
.3
11.1
430.
7
45.9
1.007
14.5
7.4
21.
9
7.4
14.5
7.4
21.
9
3581KOTU_NEW_3
40.
1
5.1
38.
5
1800MATUG-1
15.
2
4.8
3820ATURU-3
2220KOTMA-2
41.5
1810PUTTA-1
5.0
2.2
19.8
2.6
54.
6
0.997
3705NEWANU-3
0.999
0.996
32.
7
5.8
32.8
5.0
32.
7
5.8
32.8
5.0
1.000
1.002
28.2
3
54.0
33.5
H
0.998
1.009
33.7
97.
3
14.
6
97.5
13.7
1.020
60.2
8.0
12.2
0.0
0.0
6.8
34.5 9.1
42.5
15.5
H
3150AMPA-3
1150AMPA-1
30.
0
5.1
1.7
5.1
3.4
1
3770KIRIB-3
4190COL_K_11
1
4.5
2.2
1.8
2.2
4.5
1
3.7
1.005
3550KOLON-3A
13.3
50.3
12.
8
1330MONARA-1
12.8
24.5
16.
2
28.
0
13.0
28.4
15.
7
6.5
0.0
0.0
0.0
0.0
6.7
14.
4
6.5
11.8
19.
3
10.7
19.5
12.
3
6.5
1.001
100
.8
1.3
SW
20.
0
SW
51.2
11.7
32.5
0.995
0.997
0.991
424
.3
11.1
430.
7
45.9
1900PNNALA
78.
9
1.050
1725TRINC-PS
1.001
13.6
28.5
0.0
69.3
1.7
68.
7
0.0
69.3
68.
7
44.7
11.
4
10.7
44.7
11.
4
43.
4
10.7
12.
5
2650GALLE-2
13.7
157.
0
41.
3
156
.6
40.7
157.
0
156
.6
40.7
67.
0
44.
8
67.1
42.0
67.1
42.0
1.002
1
22.3
8.8
2135NEW-POLP 2
93.2
5.7
92.
5
11.
4
139
.5
25.7
139.
9
27.
7
139
.5
25.7
139.
9
27.
7
93.2
92.
5
11.
4 5
.7
27.1
27.
0
33.
1
27.1
25.2
27.
0
33.
1
1.006
41.
3
1.003
179.
9
1.1
176
.7
0.2
179.
9
1.1
176
.7
0.2
1135NEW-POLP-1
21.1
19.
2
45.8
19.
2
45.8
19.2
46.
0
46.2
19.2
45.
2
1990KIRIND-1
3990KIRIND-3
1.007
1.008
26.8
1
21.2
9.0
2990KIRIND-2
1.011
99.3
18.8
25.
4
85.
5
85.6
8.1
4.6
98.
9
99.3
18.8
98.
9
25.
4
85.
5
4.6
85.6
8.1
110
.7
28.3
110.
9
30.
7
110
.7
28.3
110.
9
30.
7
59.0
23.5
1 2.
7
1.3
19.
6
48.4
19.7
48.
3
19.
6
48.4
19.7
21.3
6.2
21.
2
6.5
21.3
6.2
21.
2
6.5
2720TRINC-2
1.2
1691NHAB-1
0.995
30.1 8.0
8.0
30.1
8.0
1600BOLAW-1
25.6
37.8
H
17.4
123
.0
15.6
123.
5
13.
7
123
.0
15.6
123.
5
13.
7
35.9
6.0
14.
3
1.001
10.6
24.
2
7.4
2.8
7.4 0.2
7.4
2.8
7.4 0.2
5.4
2.3
5.4
1.3
2.3
5.4
1.3
1.004
10.8 2.6
1
10.8
33.0
0.9
33.0
1.3
4.4
13.4
1290KALUT-1
0.992
3290KALUT-3
1.008
28.5
13.6
1
28.5
12.1
38.7
5.7
38.7
5.6
38.
7
5.7
1
22.5
10.9
4.4
9.0
0.963
0.0
W2W1
1
1.0R
1
0.0
0.0H
1
4.1
2.0R
1
0.3
0.0L
10.0
0.0L
25.2
46.
0
19.2
0.0
0.2
0.0
2
12.2
39.
3
1.002
SW
10.1
88.9
0.977
14.1
1.003
26.
7
1480KAPPAL-1
0.989
53.5
43.
4
1730CHUNNAKAM-1
3720KILINOCH_3
32.3
6.6
SW
31.
0
23.5
59.0
1160INGIN-1
35.2
18.5
7.0
18.
4
11.3
5.1
11.
2
5.9
11.3
5.1
11.
2
5.9
3410KUKULE-3 _1
1.000
1
2.2
1.0R
1.009
3.0
20.
3
55.0
2.2
54.
8
2.5
3
250.
0
25.0
R
4
250.
0
25.0
R
1
250.
0
25.0
R
0.0
1.000
0.0
0.0
W4
5.8
8.7
1 2
1.027
57.
9
10.1
8.7
22.
7
1.0
22.8
0.7
1.011
SW
20.
4
12.3
SW
SW
20.
0
SW
19.
5
SW
51.1
1100LAX-1
2815NCHILAW-2
25.0
4.5R
30.2
5.0
1.6R
D
5.0
3.1H
53.8
45.
2
0.995
1.7
3480KAPPAL-3
5707NEWAN-D2
0.973
13.7
47.5
7.3
6.2
1.3
6.2
1.7
30.
8
SW
29.
7
SW
50.
2
SW
30.
5
SW
29.
7
SW
40.
7
SW
30.
1
SW
20.
3
SW
SW
46.
2
1.1
46.2 2.8
46.
2
1.1
46.2 2.8
33.0
SW
21.
1
46.
2
1.1
46.2 2.8
0.996
30.
1
0.0
1.3
0.0
0.0
1.3
0.0
0.0
1460POLON-1
12.
9
2.0
13.0
0.5
1880AMBALA
22.5
11.9
48.
3
16.8
50.6
15.
5
1200UKUWE-1
49.
8
4810PUTTA_G1
4811PUTTA_G2
0.989
4812PUTTA_G3
0.989
37.8
250.
0
45.3
12.
9
285
.0
45.3
285.
0
12.
9
285
.028
5.0
250
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1
285.
0
12.
9R
285.
0
250.
0 0.990
12.
9
SW
3970PADUKKA-3
SW
101
.2
8.4
0.997
25.
7
38.
5
30.
1
8.0
59.3
37.0
69.0
37.
0
92.
4
4350COL-L-110.95001.0000 *
112.
2
119.
8
112
.2
* 0.0
1.0000
0.95001.0000 * 11
2.2
112
.2
* 0.0
0.0
26.
3
83.6
26.3
1
42.5
26.3
42.5
37.8
1
42.5
26.3
42.5
37.8
1
62.4
37.0
62.4
53.8
111
.9
27.2
112.
0
37.
0
1
33.1
14.1
33.1
20.1
81.3
35.
9
81.
2
23.7
43.
4
30.9
43.5
38.
9
32.0
32.
0
38.
7
0.999
1 1
12.
9R
1.016
3730CHUNNAKAM-3
1.009
44.1
19.
5
9.7
5.41280
MANNAR-1
2.2
15.1
2.2
1240VAVUN-1
29.4
3240VAVUN-33
47.
5
7.42690
NHAB-2
3691NHAB-3
1780VALACH_1 7
.6
7.6
3280MANNAR
12.
9R
1490PALLEK-1
7.6
21.
4
44.
7 2
3.1
26.7
24.
8
7.3
0.0
40.
440
.4
4252RANTE-G2
25.7SW
3816PUTTA-W
2810PUTTALAM-PS
0.03810
PUTTA-33815NARAKKA-3
69.0
8.2
4.2
4.8
3860MADAM-3
1860MADAM-1
30.
0
14.
2
102.
1
15.4
76.8
5.8
3600BOLAW-3
126.
1
3910ANIYA
1910ANIYA
16.3
4251RANTE-G1
1140CANYO-1
46.2
19.2
19.
2
19.
2
3500KOSGA-3
0.999
48.
3
20.2
20.
1
3640DENIY-3
1.001
59.5
72.
3
11.3
72.4
13.
4
10.1
29.
0
140.
3
157.
3
154.
8
5.3
1310SAPUG-1P
1.006
95.5
9.4
7.0
139.9
95.9
36.
0
44.
8
67.
0
1640DENIY-1
3301KELAN-3A
1840JPURA_1
5.6
2.9
0.998
5.4
1.001
49.1
1890DEHIW_1
1435COL_A_1
13.8
1.009
1920COL_C_1
4920COL-C-11
48.
54980COL_B_11
1.0000
106
.5
119.
8
106
.5
0.0
85.
4
36.
1
33.
3
4352COL-L2-11
4351COL-L1-11
1.002
1.008
1.003
1.000
1.018
1.018
1.184
1190COL_K_1
1.001
1.032
1.000
1.010
0.998
0.998
1.0040.982
1.001
3420HORANA_3
1420HORANA_1
1.003
0.977
1.008
0.970
1400HAMBA-1
3930SURI'WEWA-1
1.003
0.970
1930SURI'WEWA-1
0.997
1940UMAOYA-1
0.996
1.000
0.989
1.003
1.015
1.000
1.020
1.016
0.999
1.002
0.995
1.0051.0011.005
1.0351.0341.030
1.022
1.0200.985
0.992
1180BROAD-1
0.985
0.985
1770KIRIB-1
1.000
3580KOTUG-3
1.012
0.977
1.022
1.013
2970PADUKKA-2
0.992
0.990
1170SAMAN-1
0.995
0.993
3570BIYAG-3
1.011
3530THULH-3
1.006
1535KEGA-1
3535KEGA-3
0.992
1,200 sq.mm cable
1,600 sq.mm cable
1,200 sq.mm cable
8% I
8% I
10% I
10% I
10% I
10% I
33%
I
33%
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12%
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20%
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20%
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50%
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7% I 12% I
7% I
N/A
N/A
N/A
21%
I
61%
I
74%
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87%
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64%
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47%
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45%
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5% I
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15%
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4% I
14%
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5% I
41%
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24%
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24%
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13% I
20% I
20% I
52%
I
42%
I23
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82%
I
57%
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50%
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35%
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N/A
16% I
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N/A
7% I
7% I
7% I
7% I
60% I
51%
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60% I
88% I
43%
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41%
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N/A
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10%
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22% I
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8% I
33%
I37
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33%
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21%
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21%
I10
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46%
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46%
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81%
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46%
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49%
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27% I 8% I
24%
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71%
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69%
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66%
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88% I
63%
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3% I
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46%
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80%
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83%
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52%
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8% I
8% I
53%
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62% I
62% I70%
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43% I
44%
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16% I
16% I
33%
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37%
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37%
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83%
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70%
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72%
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26% I
61% I
73%
I87
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20%
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7% I
36%
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43%
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N/A
59%
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41%
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N/A
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48%
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31% I
31% I
66%
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13% I
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15% I
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19%
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N/A
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100%
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13% I
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47%
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15%
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35%
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31%
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21%
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32%
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29%
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23%
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I
2300KELAN-2
1.014
2350COL-L-2
2570BIYAG-2
1.011
1.012
2305KERAWALA_2
1.018
187.5
74.1
187.3
147.1
2580KOTUG-2
1.011
N/A
43% I
3305KERA-3
1.007
1270COL-M-1
1.001
1350COL-L1
1.004
165
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58.
0
165.
6
53.8
1750COL_E-1
1.000
103.
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4.2
103
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7
1260COL-N-1
1.002
1550KOLON-1
1.0011760COL_F-1
1.003
78.8
47.
2
78.
8
43.9
61%
I46
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41% I4270COL-M-11
0.998
4260COL-N-11
1.016
1110N-LAX-1
29.
9
SW
5.9
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4
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14.
2
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14.
2
1130POLPI-1
1210BOWAT-1
1680KURUN-1
2230VICTO-2
2240RANDE-2
2250RANTE-2
3250RANTE-3
3620BADUL-3
1.000
3630BALAN-3
0.999
1790RATMA-1
4760COL_F-11
1.000
4750COL_E-11
0.996
1.003
3670MATARA-3
0.987
3120WIMAL-3
0.995
0.988
3520NUWAR-3
1520NUWAR-1
1620BADUL-1
0.978
3540ORUWA-3
1670MATARA-1
0.992
1660EMBIL-1
0.987
0.983
3200UKUWE-3
1510SITHA-1
1630BALAN-1
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
0.989
1705NEWANU-1
1700ANURA-1
1.001
1850PANAD-1
0.988
1560PANNI-1
1.011
0.997
3790RATMA-3A
1.001
0.993
3400HAMBA-33
3660EMBIL-3
1.002
3850PANAD-3
3160INGIN-3
3700ANURA-3A
1.007
3701ANURA-3B
0.997
1710TRINC-1
0.997
1870K_NIYA-1
1830VEYAN-1
3690HABAR-3
1740RATNAP-1
3740RATNAP-3
1.004
3565PANNI-T
3870K-NIYA-3
0.986
3840JPURA_3
0.996
1.015
4435COL_A_11
3890DEHIW_3
3800MATUG-3
0.998
1.005
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1.005
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1.000
13.
8
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0
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8
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8
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9
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2
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0
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3560PANNI-3
1590SAPUGA-1
32.1
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1250RANTE-1
5.9
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7
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4
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3302KELAN-3B
15.9
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9
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1
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1
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1
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1
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1
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0.997
3880AMBALA
1.002
14.4
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0
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2
1
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3900PANNAL
1.000
1
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1
SW
10.
1
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0
0.987
10.
7
6.2
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1650GALLE-1
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3710TRINC-3
0.0
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30.
1
SW
3300KELAN-33
1.005
1
113.
0
2
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0.0
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0.998
1720KILINOCH-1
7.7
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1
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1
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9
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3
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3
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5
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6
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5
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6
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1
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2
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2
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SW
23.5
33.
7
23.0
1430COL_I_1
53.3
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1.005
2560PANNI-2
31.
3
38.
7
111.
2
11.9
3510SITHA-33
23.1
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1
29.0
15.7
1.002
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L
1.010
1440KATUNA-1
13.1
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1
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1
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5
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79.5 6.5
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2
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36.9
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1450MAHO-1
3450MAHO-3 9.
6
1
25.7
25.8
1580KOTUG-1
0.990
15.0 6.4
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5.3
1
15.0
5.5
0.994
1470VAUNAT-1
1.000
8.6
1
11.6
2.5
0.992
1
28.5
12.1
10.5
9.8
4.6
9.8
5.2
9.8
4.6
5.2
3460POLON-3
39.0
4.2
3.1
1.008
42.3
5.0
0.999
41.6
0.993
7.8
0.985
3490PALLEK-3
0.994
12.7
13.
3
1
12.7
5.8
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6.4
6.7
6.4
6.4
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SW
19.
7
1320NAULA-1
3320NAULA-3 2.
7
1
2.5
0.980
3330MONARA-312
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1
12.6
3.2
4.4
1340BELIAT-1
3340BELIAT-3
24.0
1
24.0
7.0
14.9
9.3
14.0
9.2
15.
3
9.2
15.
7 1
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35.9
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103
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3
SW
40.3
1 18
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37.
0
45.
2
33.5
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64.5
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10.
0
1820ATURU-1
1.001
1.010
5.6
SW
0.999
3551KOLON-3B
0.999
2.3
1
1.4H
0.999
3470VAUNAT-3
1.017
3780VALACH_3
70.0
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3.0
67.0
2225UPPER-KOTH-2
104.
9
7.9
104
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104.
9
7.9
104
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75.0
36.
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2
1
73.9
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1.024
17.9
19.
8
2.7
2.7
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28.1
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48.5
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1
48.5
30.0
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SW
1
SW
15.
230
.8 3
0.8
1.4
15.4
1.2
15.
4
1.5
14.
2
125.
5
88.7
125
.2
125.
5
88.7
125
.2
89.
7
3.5
19.
8
38.2
28.6
1.2
9.8
1530THULH-1
0.972
1655WELI-1
2.4
40.3 8.5
40.
1
8.9
40.3 8.5
40.
1
8.9
25.7
11.6
25.
7
11.
8
25.7
11.6
25.
7
11.
8
3655WELI-3
1.005
28.8
5.4
28.
8
6.7
SW
1
28.8
8.4
0.3
15.
1
38.0
3440KATUNA-3
47.1
7.3
0.979
0.992
1815N_CHILAW-1
1.007
9.6
5.9
8.0
5.9
78.
9
4.4
8.7
0.999
1.000
29.
1
2830VEYAN-2
8.2
40.9
320.
6
12.
2
316
.2
43.8
320.
6
12.
2
316
.2
43.8
213.
4
62.
5
211
.5
67.8
213.
4
62.
5
211
.5
137
.8
49.8
138.
1
50.
9
137
.8
49.8
138.
1
37.7
89.4
50.
4
88.
5
89.4
50.
4
102
.8
18.7
102
.810
2.8
14.
318
.7 6
5.2
65.2
65.
2
8.0
65.2
0.995
95.6
95.
4
12.3
11.
6
1960MAHIYA
3960MAHIYA-3
26.4
40.7
24.
4
40.
7
1.3
3590SAPUG-3A
25.
2
59.5
1410KUKULE-1
91.
5
8.0
91.7
37.
4
3.8
37.5
1500KOSGA-1
37.
4
37.5
3.1
3.1
6.6H
1970PADUKKA-1
61.
8
6.0
5.9
1120WIMAL-1
1.5
15.
4
16.6
30.8
45.
8
9.0
1300KELAN-1
37.7
1.019
7.6
1690HABAR-1
9.8
103
.0 7.6
103.
0
1.9
103
.0 7.6
103.
0
1.9
0.995
88.
5
2705NEWANU-2
147
.2
24.1
151.
0
21.
4
147
.2
24.1
151.
0
21.
4
2
250.
0
25.6
R
0.987
424
.3
10.0
430.
7
47.1
1.007
14.2
8.1
21.
6
8.1
14.2
8.1
21.
6
3581KOTU_NEW_3
50.
9
5.1
38.
4
1800MATUG-1
15.
1
3.8
3820ATURU-3
2220KOTMA-2
41.5
1810PUTTA-1
5.0
2.1
19.8
2.6
89.
7
0.996
3705NEWANU-3
0.997
0.993
32.
7
5.5
32.8
4.8
32.
7
5.5
32.8
4.8
0.997
1.000
29.7
3
54.0
33.5
H
0.996
1.008
33.7
91.
5
8.0
91.7
7.1
1.020
60.2
8.0
12.1
0.0
0.0
6.9
34.5 8.6
42.5
15.5
H
3150AMPA-3
1150AMPA-1
30.
0
5.4
2.2
5.4
3.8
1
3770KIRIB-3
4190COL_K_11
1
4.5
2.1
1.8
2.1
4.5
1
3.7
1.005
3550KOLON-3A
13.0
50.8
12.
5
1330MONARA-1
12.8
24.5
16.
3
28.
1
13.1
28.5
15.
7
6.5
0.0
0.0
0.0
0.0
6.6
14.
6
6.5
11.9
19.
2
10.8
19.5
12.
4
6.4
1.001
100
.1
1.3
SW
19.
9
SW
51.7
11.9
32.5
0.995
0.995
0.989
424
.3
10.0
430.
7
47.1
1900PNNALA
79.
4
1.050
1725TRINC-PS
1.001
13.6
28.5
0.1
69.3
1.8
68.
7
0.1
69.3
68.
7
44.7
11.
3
10.6
44.7
11.
3
43.
4
10.6
12.
3
2650GALLE-2
7.1
183.
4
28.
5
183
.0
28.8
183.
4
183
.0
28.8
75.
3
50.
7
75.5
48.1
75.5
48.1
0.999
1
22.3
8.8
2135NEW-POLP 2
93.9
5.4
93.
1
11.
5
141
.7
23.0
142.
1
24.
9
141
.7
23.0
142.
1
24.
9
93.9
93.
1
11.
5 5
.4
29.1
29.
0
35.
8
29.1
28.0
29.
0
35.
8
1.004
28.
5
1.001
178.
3
0.8
175
.2
0.5
178.
3
0.8
175
.2
0.5
1135NEW-POLP-1
21.2
18.
7
46.1
18.
7
46.1
18.8
46.
4
46.5
18.8
45.
5
1990KIRIND-1
3990KIRIND-3
1.005
1.005
26.8
1
21.2
9.0
2990KIRIND-2
1.009
99.3
22.7
29.
3
103
.0
103.
2
4.4
7.3
99.
0
99.3
22.7
99.
0
29.
3
103
.0
7.3
103.
2
4.4
119
.5
25.3
119.
7
27.
4
119
.5
25.3
119.
7
27.
4
59.0
23.6
1 2.
7
1.3
19.
6
48.4
19.7
48.
3
19.
6
48.4
19.7
21.3
6.2
21.
3
6.5
21.3
6.2
21.
3
6.5
2720TRINC-2
1.2
1691NHAB-1
0.995
30.1 8.0
8.0
30.1
8.0
1600BOLAW-1
25.6
37.8
H
17.4
131
.4
17.2
131.
9
15.
0
131
.4
17.2
131.
9
15.
0
35.9
6.0
14.
7
0.999
10.7
24.
2
7.0
2.8
7.0 0.3
7.0
2.8
7.0 0.3
5.4
2.3
5.4
1.3
2.3
5.4
1.3
1.004
10.8 2.6
1
10.8
31.9
1.6
32.0
2.0
3.4
14.1
1290KALUT-1
0.989
3290KALUT-3
1.005
28.5
13.6
1
28.5
12.1
38.7
5.9
38.7
5.8
38.
7
5.9
1
22.5
10.9
3.4
8.9
0.962
0.0
W2W1
1
1.4R
1
0.0
0.0H
1
4.1
2.5H
1
0.3
0.0L
10.0
0.0L
28.0
46.
4
18.8
0.0
0.2
0.0
2
12.1
39.
1
1.001
SW
10.1
88.9
0.975
14.7
1.003
25.
9
1480KAPPAL-1
0.989
53.5
43.
4
1730CHUNNAKAM-1
3720KILINOCH_3
32.3
6.6
SW
31.
0
23.6
59.0
1160INGIN-1
35.2
19.3
6.8
19.
3
11.3
5.1
11.
3
5.9
11.3
5.1
11.
3
5.9
3410KUKULE-3 _1
1.000
1
2.2
1.2R
1.008
3.0
20.
5
63.9
0.6
63.
6
1.3
3
250.
0
25.6
R
4
250.
0
25.6
R
1
250.
0
25.6
R
0.0
1.000
0.0
0.0
W4
5.8
8.7
1 2
1.026
58.
4
9.7
8.4
22.
7
1.1
22.8
0.7
1.009
SW
20.
4
12.3
SW
SW
20.
0
SW
19.
5
SW
50.2
1100LAX-1
2815NCHILAW-2
25.0
4.7R
30.2
5.0
1.8R
D
5.0
3.1H
53.8
45.
5
0.995
1.8
3480KAPPAL-3
5707NEWAN-D2
0.973
13.6
47.4
7.3
6.2
1.3
6.2
1.7
30.
6
SW
29.
6
SW
49.
9
SW
30.
5
SW
29.
7
SW
40.
3
SW
30.
1
SW
20.
2
SW
SW
46.
2
1.2
46.2 2.8
46.
2
1.2
46.2 2.8
33.0
SW
21.
0
46.
2
1.2
46.2 2.8
0.994
30.
1
0.0
1.3
0.0
0.0
1.3
0.0
0.0
1460POLON-1
12.
9
2.0
13.0
0.5
1880AMBALA
22.5
11.9
48.
7
16.6
51.1
15.
2
1200UKUWE-1
50.
2
4810PUTTA_G1
4811PUTTA_G2
0.989
4812PUTTA_G3
0.989
36.7
250.
0
44.2
11.
9
285
.0
44.2
285.
0
11.
9
285
.028
5.0
250
.0
1
285.
0
11.
9R
285.
0
250.
0 0.991
11.
9
SW
3970PADUKKA-3
SW
100
.7
8.4
0.996
25.
7
38.
4
30.
1
8.0
59.7
102.
5
85.1
102
.4
107
.8
4350COL-L-110.95001.0000 *
102.
4
107.
8
102
.4
* 0.0
1.0000
0.95001.0000 * 10
2.4
102
.4
* 0.0
0.0
39.
9
65.1
39.9
1
42.5
26.3
42.5
37.9
1
42.5
26.3
42.5
37.9
1
62.4
37.0
62.4
54.0
125
.5
8.5
125.
7
18.
1
1
33.1
14.1
33.1
20.1
80.4
31.
4
80.
3
19.2
37.
5
32.7
37.6
40.
7
26.1
26.
1
38.
7
0.995
1 1
11.
9R
1.016
3730CHUNNAKAM-3
1.009
44.1
19.
5
9.7
5.41280
MANNAR-1
2.2
15.2
2.2
1240VAVUN-1
29.4
3240VAVUN-33
47.
4
8.12690
NHAB-2
3691NHAB-3
1780VALACH_1 7
.6
7.6
3280MANNAR
11.
9R
1490PALLEK-1
7.5
21.
4
51.
4 2
3.6
26.4
24.
4
6.9
0.0
40.
740
.7
4252RANTE-G2
25.7SW
3816PUTTA-W
2810PUTTALAM-PS
0.03810
PUTTA-33815NARAKKA-3
67.8
8.0
4.2
4.9
3860MADAM-3
1860MADAM-1
30.
0
14.
3
102.
8
15.4
77.6
5.5
3600BOLAW-3
133.
9
3910ANIYA
1910ANIYA
16.3
4251RANTE-G1
1140CANYO-1
46.5
18.8
18.
8
18.
8
3500KOSGA-3
0.996
48.
3
20.2
20.
0
3640DENIY-3
0.998
61.9
128
.5
10.
5
129.
0
10.2
12.3
36.
8
140.
4
157.
4
155.
0
3.6
1310SAPUG-1P
1.003
95.6
11.
6
9.1
140.1
16.3
36.
0
50.
7
75.
3
1640DENIY-1
3301KELAN-3A
1840JPURA_1
5.8
4.0
0.995
5.3
0.998
49.2
1890DEHIW_1
1435COL_A_1
15.7
1.005
1920COL_C_1
4920COL-C-11
48.
54980COL_B_11
1.0000
96.
7
107.
8
96.
7
0.0
67.
0
37.
9
40.
5
4352COL-L2-11
4351COL-L1-11
0.998
1.004
1.000
0.998
1.012
1.012
1.163
1190COL_K_1
0.997
1.028
0.996
1.006
0.994
0.995
1.0000.979
0.998
3420HORANA_3
1420HORANA_1
1.001
0.974
1.006
0.967
1400HAMBA-1
3930SURI'WEWA-1
1.000
0.967
1930SURI'WEWA-1
0.996
1940UMAOYA-1
0.996
0.999
0.988
1.002
1.015
1.000
1.020
1.016
0.999
1.002
0.994
1.0051.0011.005
1.0351.0341.030
1.020
1.0190.983
0.992
1180BROAD-1
0.983
0.983
1770KIRIB-1
0.999
3580KOTUG-3
1.017
0.975
1.019
1.010
2970PADUKKA-2
0.990
0.988
1170SAMAN-1
0.994
0.991
3570BIYAG-3
1.002
3530THULH-3
1.005
1535KEGA-1
3535KEGA-3
0.991
1,200 sq.mm cable
1,600 sq.mm cable
1,200 sq.mm cable
8% I
8% I
10% I
10% I
10% I
10% I
33%
I
33%
I
12%
I
20%
I
20%
I
50%
I
7% I 12% I
7% I
N/A
N/A
N/A
21%
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61%
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75%
I
87%
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64%
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47%
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45%
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5% I
5% I
16%
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14%
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41%
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20% I
20% I
52%
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42%
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83%
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57%
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50%
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35%
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16% I
16% I
N/A
7% I
7% I
7% I
7% I
59% I
54%
I
59% I
89% I
43%
I
41%
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N/A
N/A
10%
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22% I
22% I
8% I
33%
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33%
I37
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22%
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22%
I10
2% I
40%
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40%
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81%
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66%
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12%
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1% I
40%
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40%
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2% I
2% I
49%
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27% I 8% I
24%
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8% I
71%
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69%
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89% I
63%
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47%
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N/A
47%
I47
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80%
I
83%
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52%
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8% I
8% I
53%
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62% I
62% I71%
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43% I
44%
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16% I
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33%
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83%
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70%
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73%
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61% I
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20%
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36%
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59%
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42%
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48%
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31% I
31% I
66%
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13% I
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4% I
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34%
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38%
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100%
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33%
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N/A
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79%
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94%
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74%
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100%
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100%
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87%
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91%
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48%
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17% I
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17% I
37% I
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7% I
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34%
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79%
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93%
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93%
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35%
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61%
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9% I
57%
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53%
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11% I
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14% I
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84%
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52%
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26%
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33%
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31%
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83%
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18% I
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13% I
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47%
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35% I
15%
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42%
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I40
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28% I
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17%
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9% I
28% I
31%
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21%
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33%
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30%
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I
9% I
10% I
10% I
25%
I30
% I
28% I
85%
I
85%
I
85%
I
N/A
N/A
N/A
N/A
45% I
10% I
N/A
N/A
N/A
N/A
87%
I90
% I
N/A
100%
I
21%
I
37%
I33
% I
22% I
31%
I
31%
I
31%
I
N/A
1% I
1% I
N/A
N/A
N/A
13%
I
N/A
42%
I
40%
I
70%
I
80%
I
80%
I81
% I
81%
I
71%
I
N/A
31% I
56%
I
59%
I
N/A
56%
I
59%
I
N/A
27%
I
90%
I90
% I
88%
I
45% I
62%
I
38%
I
25% I
16% I
46%
I
34% I
34%
I
62%
I
2300KELAN-2
1.005
2350COL-L-2
2570BIYAG-2
1.006
102.
5
85.1
102
.4
107
.8
1.002
2305KERAWALA_2
1.024
2580KOTUG-2
1.012
31% I
N/A
3305KERA-3
1.013
1270COL-M-1
0.997
1350COL-L1
0.999
159
.6
56.
6
159.
7
52.4
1750COL_E-1
0.995
97.2 2.7
97.
1
10.
2
1260COL-N-1
0.998
1550KOLON-1
0.9981760COL_F-1
0.999
92.4
28.
6
92.
4
25.3
60%
I44
% I
43% I4270COL-M-11
0.993
4260COL-N-11
1.011
1110N-LAX-1
5.5
30.
3
SW
9.6
96.0
8.5
95.
8
3.9H6.
3
0.0
0.0
42.5
139.
1
11.4
6.2H
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15.
6
44.
8
1.07.2
1.0
7.2
4.3
1.6
6.1
1.6
16.5
71.4
5.8
6.3
69.7
2.3
29.
0
2.1
29.1
2.3
2.1
29.1
11.3
3.2
14.
0
3.3
11.3
3.2
14.
0
1130POLPI-1
0.984
0.989
1680KURUN-1
3630BALAN-3
1.006
0.988
0.996
3520NUWAR-3
0.976
3540ORUWA-3
3530THULH-3
1510SITHA-1
1630BALAN-1
1540ORUWA-1
3680KURUN-3
1.018
1705NEWANU-1
1700ANURA-1
1.001
1850PANAD-1
1.011
1.005
1.008 0.998
0.994
1870K_NIYA-1
1830VEYAN-1
1740RATNAP-1
3740RATNAP-3
3870K-NIYA-3
0.988
3840JPURA_3
0.993
1.011
3800MATUG-3
1.007
13.
8
11.
0
13.8
10.8
13.
8
11.
0
13.8
10.8
7.2
21.2
21.
5
7.2
7.2
21.
5
5.2
21.3
5.2
21.3
45.3
2.8
44.
4
2.8
45.3
44.
4
2.8
14.4
8.9
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3
44.6
12.
7
44.
1
12.5
44.6
44.
1
12.5
22.0
48.
1
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9
45.0
81.9
50.
0
2.6
0.0 0.0
0.0 0.0
0.0
2.0
58.1
52.5
51.0
54.0
13.0
42.
2
7.8
1.6
6.1
7.2
1.0
16.2
9.8
16.
0
8.4
5.7
1.6
4.2
21.
4
8.6
21.6
9.8
8.6
21.6
1.2
18.
1
1.0
16.0
2.8
45.
3
2.8
25.6
77.1
21.8
29.
0
73.8
21.9
5.6
29.1
20.4
0.0
34.9
8.4
34.
7
7.8
34.9
8.4
34.
7
7.8
0.0
14.
5
14.6 2.8
14.
5
4. 4
14.6 2.8
22.
7
22.8
44.
9
22.8
39.1
89. 7
31.9
4.8
52.2
5.2
31.
3
0.0
0.20.0
0.2
60.2
21.0
6.2
0.7
7.5
46.
4
13.7
52.6
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9
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4
13.7
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4
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6
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4
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4
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1
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27.4 2.1
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4
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4
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0.5
0.0
0.0
1.4
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78.4
78.4
1.4
0.6
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0.7
45.9 4.7
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4
14.
427
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51.3
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0.9
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139
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9.1
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0.5
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1
1.9
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1
1.9
50.4
3.4
65.3
1.6
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2
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8
27.5
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0
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8
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9
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8
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9
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4
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71.7
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5
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0
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41.0
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2
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5
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9
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9
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2
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2
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0
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155.
7
2.7
12.2
1
20.0
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H
1
1
1
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1
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1
42.8
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1
1
52.5
29.8
1
59.5
35.3
1
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1
30.1 7.5
1
10.7 2.7
1
1
104.
0
1
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SW
2
61.0
1
29.1 7.3
1
20.4
1
42.2
19.4 4.9
1
82.8
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1
53.3
1
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1
71.8
61.4
1
4.0
SW
20.
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1
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1
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1
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3
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0
4
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1
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0
1
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1
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21.8
1
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SW
9.9
1
28.6
1
1
25.6
3
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1
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0
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1
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1
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H
0.981
3560PANNI-3
1590SAPUGA-1
32.1
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5.8
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7
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4
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3.4
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1
SW
19.
8
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4
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1
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1
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1
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1
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1
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10.7
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3880AMBALA
14.4
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7
8.9
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7
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1
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1.004
1
73.0
37.4
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1
42.3
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1.006
1.009
1
SW
10.
2
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1
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9
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SW
1.013
1
113.
0
2
70.0
H
19.2
0.999
1720KILINOCH-1
7.7
4.7
1.3
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4.7
4.7
1
32.3
31.4
38.0 4.5
1
24.0
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3.9
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1
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86.
6
53.1
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4
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0
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4
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1
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14.4
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1
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4
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6
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4
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6
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0
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1
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9
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1
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1.000
23.5
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7
23.0
1430COL_I_1
53.3
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4430COL_I_11
1.010
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7
38.
7
139.
1
11.6
3510SITHA-33
23.1
29.0
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1
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L
1.016
1440KATUNA-1
12.8
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1
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6
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6
20.7
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620
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6
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4
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8
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1
25.7
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0.991
15.0 6.4
7.7
5.3
1
15.0
5.5
8.5
1
11.6
2.6
0.992
1
28.5
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9.8
4.6
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9.8
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2.7
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42.3
4.1
1.007
41.8
7.8
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4
1
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19.
8
2.7
1
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12.6
1
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6
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1 1
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7
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40.3
1
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1
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4
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64.5
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0
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1820ATURU-1
1.008
1.006
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3551KOLON-3B
2.3
1
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1.002
1.018
70.0
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3.0
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8
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8
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3
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8
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0
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15.
230
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4
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8
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9
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1530THULH-1
2.8
39.5 8.9
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3
9.3
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39.
3
9.3
24.9
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9
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9
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3
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8
6.8
1
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4
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3440KATUNA-3
47.1
6.4
1815N_CHILAW-1
1.010
9.6
3.8
7.1
3.8
69.
2
4.9
7.9
1.001
1.000
29.
0
8.2
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8
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7
314
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8
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7
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4
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0
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5
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5
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5.2
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2
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8
3.6
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1960MAHIYA
3960MAHIYA-3
26.8
40.9
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7
40.
9
1.3
3590SAPUG-3A
16.
8
59.5
1410KUKULE-1
128
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2
128.
8
71.
3
5.2
71.5
1500KOSGA-1
71.
3
71.5
5.6
5.6
6.6H
1970PADUKKA-1
95.
8
8.5
9.6
1.5
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4
16.6
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5
9.3
39.2
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1 1
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3
150
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4
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4
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0
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0.988
424
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0
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9
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4
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11.4
22.
9
3581KOTU_NEW_3
56.
9
36.
7
15.
2
5.2
3820ATURU-3
41.5
1810PUTTA-1
4.7
2.1
19.8
2.6
89.
8
3705NEWANU-3
32.
7
6.2
32.8
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7
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33.7
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2
128.
8
12.0
1.021
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30.
0
5.7
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3770KIRIB-3
1
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1.001
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1
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1535KEGA-1
3550KOLON-3A
13.4
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7
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2
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1
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7
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0
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51.8
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424
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0
45.0
1900PNNALA
69.
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1.050
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1.001
13.6
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4
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4
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5
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1
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0
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9
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9
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8
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8
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1135NEW-POLP-1
21.2
18.
4
45.6
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4
45.6
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9
46.0
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1
1990KIRIND-1
3990KIRIND-3
1.008
1.008
26.8
1
21.2
9.0
95.9
17.2
24.
0
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0
99.1
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5
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5
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7
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6
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3
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6
48.4
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2
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2
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2720TRINC-2
1.3
8.0
1600BOLAW-1
25.6
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17.4
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4
10.6
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6.0
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1
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7
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1
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3580KOTUG-3
2
12.6
39.
2
1.005
SW
10.2
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0.977
1.007
41.1
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1730CHUNNAKAM-1
32.3
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31.
0
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2.9
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1.017
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4
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1
250.
0
24.5
R
0.977
0.0
1.000
0.0
0.0
W4
5.8
8.7
1 2
59.
4
10.0
22.
7
1.0
1.011
SW
20.
6
12.3
SW
SW
20.
0
SW
19.
5
SW
50.8
1100LAX-1
2815NCHILAW-2
25.0
4.5R
30.2
5.0
1.7R
D
5.0
3.1H
53.8
45.
1
3535KEGA-3
0.996
1.6
13.7
6.2
1.3
30.
3
SW
30.
3
SW
50.
7
SW
30.
8
SW
29.
8
SW
40.
6
SW
30.
3
SW
20.
5
SW
SW
46.
0
1.1
46.0 2.7
46.
0
1.1
46.0 2.7
33.0
SW
20.
7
46.
0
1.1
46.0 2.7
30.
1
1180BROAD-1
12.
9
2.0
13.0
0.5
22.5
11.9
49.
6
17.1
51.
2
0.987
41.2
250.
0
48.8
16.
3
285
.0
48.8
285.
0
16.
3
285
.028
5.0
250
.0
1
285.
0
16.
2R
285.
0
250.
0
16.
3
SW
3970PADUKKA-3
SW
100
.6
8.4
25.
7
36.
7
30.
1
178.
2
1 1
1
50.7
32.8
1
38.
7
1 1
16.
2R
1.016
1.010
44.1
19.
5
9.8
5.41280
MANNAR-1
2.2
15.5
2.2
29.4
46.
4
11.
42690NHAB-2
7.6
7.6
3280MANNAR
16.
2R
7.6
21.
4
44.
9 2
2.7
26.8
24.
7
7.3
40.
940
.9
25.7
0.0
72.6
8.5
4.2
4.7
3860MADAM-3
1860MADAM-1
30.
2
13.
8
91.0
0.994
15.4
60.4
5.5
3600BOLAW-3
89.7
3910ANIYA
1910ANIYA
16.3
46.0
18.5
18.
5
18.
5
3500KOSGA-3
0.999
48.
3
20.2
1.002
96.0
155
.0
1.9
155.
7
2.7
3.6
16.9
65.3
83.4
78.7
12.1
1310SAPUG-1P
1.009
20.8
3.8
1.8
65.
2
44.
0
36.
0
43.
3
70.
5
1640DENIY-1
1840JPURA_1
5.7
3.8
4.1
49.2
1890DEHIW_1
1435COL_A_1
48.
5
3710TRINC-3
1710TRINC-1
0.989
1.019
3480KAPPAL-3
1240VAVUN-1
3701ANURA-3B
3700ANURA-3A 1480
KAPPAL-1
2705NEWANU-2
0.996
1.027
3690HABAR-3
3460POLON-3
1460POLON-1
1780VALACH_1
3780VALACH_3
3490PALLEK-3
2250RANTE-2
1250RANTE-1
0.0
3250RANTE-3
4252RANTE-G2
4251RANTE-G1
3470VAUNAT-3
3620BADUL-3
1620BADUL-1
1.3
0.0
1.3
0.0
0.0
0.0
0.0
0.0
0.997
12.6
1940UMAOYA-1
1520NUWAR-1
1120WIMAL-1
0.9883120WIMAL-3
1140CANYO-1
45.
31170SAMAN-1
11.
2
5.9
11.
2
5.9
22.5
10.9
1400HAMBA-1
3400HAMBA-33
9.3
1670MATARA-1
1655WELI-1
3655WELI-3
8.4
SW
20.
1
0.997
3670MATARA-3
1.002
0.0
3650GALLE-3
30.
2
23.
9
1650GALLE-1
2650GALLE-2
1880AMBALA
1800MATUG-1
1420HORANA_1
12.5
26.1 2.4
0.6
2.4
11.8
3420HORANA_3
1790RATMA-1
3790RATMA-3A
3850PANAD-3
1290KALUT-1
3290KALUT-3
4435COL_A_11
3890DEHIW_3
4260COL-N-11
33.1
14.1
33.
1
14.
1 13.4
44.
0
13.
4
31.2
0.993
4980COL_B_11
1980COL_B_1
4920COL-C-11
42.5
26.3
42.5
26.3
178
.1
85.
9
0.994
Long Term Transmission Development Plan 2011-2020 Annex C-15: Year 2020 Sri Lanka Transmission Network - Minimum Loading Condition
62.4
37.0
50.
6
43.
1
SW
3.3 0.994
3810PUTTA-3 1.003
3815NARAKKA-3
0.964
3450MAHO-3
1450MAHO-1
0.998
0.981
3816PUTTA-W
2810PUTTALAM-PS
4812PUTTA_G3
4810PUTTA_G1
4811PUTTA_G2
0.9870.989
5707NEWAN-D2
52.6
10.
9
0.973
3240VAVUN-33
1.000
1.009
3720KILINOCH_3
3730CHUNNAKAM-3
22.8
0.7
177.
5
3.6
177.
5
3.6
3691NHAB-3
52.1
15.
560
.8
8.5
30.1 8.0
30.1 8.0
0.995
0.995
1690HABAR-1 8
.0
0.984
0.990
0.997
0.995
1.034 1.0351.030
2230VICTO-2
2240RANDE-2
2225UPPER-KOTH-2
1.020
1.002
0.999
0.995
1.0051.0011.005
0.992
0.995
0.990
0.988
0.996
1.001 0.989
1.0001330MONARA-1
3330MONARA-3
1160INGIN-1
3160INGIN-3 1.003
1.015
3150AMPA-3
1.000
1.020
1150AMPA-1
1.016
1470VAUNAT-1
1.000
0.992
1.000
0.995
3640DENIY-3
0.9963410KUKULE-3 _1
1.001
1340BELIAT-1
0.976
3340BELIAT-3
1.002
0.969
1.007
3930SURI'WEWA-1
1.002
0.969
1930SURI'WEWA-1
1660EMBIL-1
0.974
1.003
3660EMBIL-3
0.994
1.007
1.0074650GALLE-SV1.0031.004
0.9990.997
1.000
0.991
1.0071.001
0.990
1.008
1.004
0.998
1.007
0.997
1.003
0.992
0.997
1.002
63.3
800
sq.m
m c
able
800 sq.mm cable
1,200 sq.mm cable
1,200 sq.mm cable
1,000 sq.mm cable
8% I
8% I
10% I
10% I
10% I
10% I
34%
I
34%
I
13%
I
21%
I
21%
I
50%
I
7% I 12% I
7% I
N/A
N/A
N/A
21%
I
61%
I
75%
I
88%
I
64%
I
47%
I
45%
I
5% I
5% I
15%
I
4% I
14%
I
5% I
41%
I
24%
I
24%
I
14% I
20% I
20% I
53%
I
40%
I22
% I
82%
I
57%
I
50%
I
35%
I
N/A
16% I
16% I
N/A
7% I
7% I
7% I
7% I
59% I
37%
I
59% I
88% I
15%
I
11%
I
1% I
1% I
14%
I
22% I
22% I
8% I
32%
I36
% I
32%
I36
% I
21%
I
21%
I10
2% I
63%
I
63%
I
81%
I
66%
I
12%
I
12%
I
N/A
1% I
62%
I
62%
I
2% I
2% I
49%
I
25% I 9% I
22%
I
8% I
71%
I
69%
I
66%
I
88% I
34%
I
3% I
3% I
58%
I58
% I
N/A
58%
I58
% I
N/A
80%
I
83%
I
53%
I
8% I
8% I
53%
I
29% I
29% I70%
I
9% I
44%
I
16% I
16% I
33%
I
23%
I
23%
I
83%
I
70%
I
73%
I
32% I
32% I
47%
I87
% I
20%
I
7% I
36%
I
44%
I
N/A
59%
I
41%
I
N/A
N/A
48%
I
30% I
30% I
66%
I
13% I
13% I
7% I
7% I
41%
I
10% I
38%
I
N/A
N/A
N/A
N/A
N/A
100%
I
100%
I
30%
I
N/A
N/A
N/A
N/A
79%
I
N/A
N/A
80%
I
N/A
94%
I
N/A
N/A
N/A
74%
I
N/A
N/A
100%
I
100%
I
87%
I
100%
I
N/A
48%
I
N/A
17% I
N/A
17% I
37% I
N/A
7% I
49%
I
34%
I 34%
I
34%
I
33%
I
33%
I
33%
I
33%
I
23%
I
8% I
8% I
78%
I
46%
I
N/A
N/A
93%
I
93%
I
35%
I
2% I
2% I
60%
I
11% I
58%
I
60%
I
11% I
11%
I
51%
I
4% I
14% I
14% I
14%
I
36%
I
83%
I
3% I
11%
I4%
I
11%
I12
% I
7% I
44%
I
12% I
52%
I
4% I
51%
I
51%
I
11%
I
11%
I
30%
I4%
I
4% I
26%
I
42%
I
41%
I
14%
I
13%
I
8% I
8% I
N/A
33%
I
29%
I
29%
I94
% I
N/A
N/A
39%
I
7% I
84%
I
49%
I
7% I
20% I
20% I
7% I
18% I
18% I
12% I
12% I
47%
I
4% I
4% I
31% I
14%
I
14%
I
21% I
21% I
31%
I
43%
I
43%
I41
% I
41%
I
18%
I
18%
I
14% I
14% I
37%
I
37%
I
44%
I
44%
I
9% I
47%
I
34%
I
16% I
16% I
21% I
N/A
42%
I
N/A
41%
I
N/A
42%
I41
% I
40%
I
40%
I
85%
I
28% I
7% I
7% I
15% I
15% I
37%
I37
% I
45%
I
34%
I
38%
I
5% I
5% I
35%
I
5% I
27%
I
58%
I58
% I
N/A
2% I
33%
I
21% I
24% I
13% I
14% I
13% I
N/A
17%
I
24% I
N/A
N/A
9% I
28% I
31%
I
31%
I
21%
I
21%
I
39%
I
28%
I 28%
I
11% I
11% I
44%
I
44%
I
21% I
21% I
42%
I
42%
I
13%
I
20% I
20% I
13%
I
6% I
6% I
23%
I
23%
I
11%
I
11%
I
20%
I
13% I
13%
I
13% I
13%
I
20%
I
20%
I
27% I
42%
I35
% I
23%
I
23%
I
22% I
22% I
23%
I
23%
I
N/A
N/A
3% I
3% I
4% I
4% I
35%
I
13% I 6% I
12%
I
6% I
51%
I
17%
I 17%
I
N/A
N/A
N/A
27%
I
N/A
34%
I
25%
I
85%
I
39%
I
N/A
N/A
N/A
35%
I
27% I
42%
I
11% I
10% I
10% I
24%
I30
% I
3% I
85%
I
85%
I
85%
I
N/A
N/A
N/A
N/A
46% I
10% I
N/A
N/A
N/A
N/A
86%
I89
% I
N/A
100%
I
20%
I
36%
I32
% I
22% I
31%
I
31%
I
31%
I
N/A
1% I
1% I
N/A
N/A
N/A
13%
I
N/A
42%
I
40%
I
70%
I
80%
I
80%
I81
% I
81%
I
71%
I
41% I
24% I
62%
I
20%
I
47%
I
27% I
41%
I
32%
I
2560PANNI-2
19.
3
16.
4
2570BIYAG-2
1.011
2970PADUKKA-2
1.013
2300KELAN-2
1.011
2580KOTUG-2
1.016
2990KIRIND-2
2135NEW-POLP 2
1.021
1.007
8.8
19.3
13.
9
30.
7
2190COL_K_1
2350COL-L-2
93.1
10.0
2270COL-M-1 9
3.1
30.
2
30.7
23.
3 1.007
1.007
1.009
1.012
81.0
18.7
2305KERAWALA_2
1.028
2830VEYAN-2
1.011
2220KOTMA-2 1.022
0.995
5302KEL-D2
10% I
6% I
26%
I
55%
I
N/A
4760COL_F-11
4.5
11.
4
0.998
4351COL-L1-11
1.025
4352COL-L2-11
42.
5
26.
3
42.
5
26.
3
0.992
4270COL-M-11
4750COL_E-11
62.
4
37.
0
1.0070.991
1.039
4190COL_K_11
20%
I
86%
I89
% I
90%
I
1560PANNI-1
1.003
0.992
1750COL_E-1
1760COL_F-1
1260COL-N-1
1300KELAN-1 94
.6
55.7
94.
5
64.
1
42.0
22.3
0.991
24.
6
17.
5
26.
5
42.
0
17.5
22.8
0.992
0.996
81.
0
11.
9
1570BIYAG-1
1.009
1550KOLON-1
0.994
1920COL_C_1
0.995
1200UKUWE-1
0.983
1210BOWAT-1
0.984
1320NAULA-1
0.980
1490PALLEK-1
0.986
1691NHAB-1
0.996
1770KIRIB-1
0.984
40% I
22%
I
14% I
55%
I
N/A
N/A
3565PANNI-T
1.000
3300KELAN-33
0.0
0.5
3570BIYAG-3
1.008
3301KELAN-3A
0.993
3302KELAN-3B
0.993
0.993
3200UKUWE-3 0.996
3320NAULA-3
1% I
1110N-LAX-1
29.
4
SW
0.0
0.0
40.3
90.7
9.1
18.1
18.1
1130POLPI-1
1.000
1170SAMAN-1
1.000
1210BOWAT-1
1680KURUN-1
1.000
2230VICTO-2
2240RANDE-2
1.000
2250RANTE-2
1.000
3250RANTE-3
3620BADUL-3
1.000
3630BALAN-3
1.000
1.0001.000
1790RATMA-1
1550KOLON-1
4750COL_E-11
0.970
1.000
3670MATARA-3
1.000
3120WIMAL-3
1.000
1.000
3520NUWAR-3
1.000
1520NUWAR-1
1.000
1620BADUL-1
1.000
1.000
3540ORUWA-3
1670MATARA-1
1.000
1660EMBIL-1
1.000
1.000
3200UKUWE-3
3530THULH-3
1510SITHA-1
1630BALAN-1
1.000
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
1.000
1.023
1705NEWANU-1
1700ANURA-1
1.000
1850PANAD-1
1.000
1560PANNI-1
1.000
0.972
3790RATMA-3A
0.985
0.977
1400HAMBA-1
3400HAMBA-33
1.000
3660EMBIL-3
1.000
3850PANAD-3
1.000
3160INGIN-3
1.000
1.000
3700ANURA-3A
1.000
3701ANURA-3B
1.000
1710TRINC-1
1.000
1870K_NIYA-1
1830VEYAN-1
1.000
3690HABAR-3
1740RATNAP-1
3740RATNAP-3
0.992
3870K-NIYA-3
1.000
3840JPURA_3
4435COL_A_11
0.964
3800MATUG-3
1.000
1.000
4650GALLE-SV
1.000
3650GALLE-3
1.000
60.7
54.6
27.8
153.
3
25.2
5.8
34.6
10.8
93.
3
0.0
0.00.0
0.0
7.3
5.7
41.
4
24.
8
41.5
24.8
41.
4
24.
882
.8
65.
8
46.
2
65.8
65.8
34.1
90.
790
.7
40.3
0.0
0.0
90.
7
40.3
0.0
0.0
67.2
57.
3
27.9
139.
1
0.3
138
.8 1.9
0.3
94.
1
27.5
117
.4
15.
9
117
.4
15.
9
54.
4
67.0
43.1
55.3
67.8
64.7
53.6
1.9
53.
6
138
.5
62.
1
138.
6
58.0
41.1
46.
3
41.
1
44.2
46.
3
41.
1
44.2
172
.7
35.1
173.
7
33.
0
1
1
1
1
1
1
1
1
60.7
34.4
1
62.0
36.8
1 1
1 1
1
1
1
SW
2
1
1
1
0.0
0.0
0.0
1
82.8
40.1
1
50.3
1
1
71.8
61.4
1
SW
0.0
1
1
1
2 2 3
2
2
1
1 2
3 4
1
SW 0.0
1
1
1
SW 0.0
1
28.6
1
1
27.9
3
1
1
88.9
48.0
1
27.5
1
1
77.4
45.9
1
54.4
3
1
84.9
1
67.0
1
2 1
1
1
1
1
50.1
1
1
1
0.0
1.000
1.000
1.000
1.000
103.5
0.985
1.000
3560PANNI-3
1590SAPUGA-1
35.5
3830VEYAN-33
1250RANTE-1
23.4
19.
4
23.
3
19.3
7.6
23.4
19.
4
23.
3
38.
7
7.6
3302KELAN-3B
17.2
1
SW 0.0
1
1
1
1 1
1
1
1
1.000
1.000
3880AMBALA
1.000
1
1.000
3900PANNAL
1.000
1
12.8
1
42.3
20.5
0.988
0.990
1
SW
9.8
0.0
1.000
2.0
1.000
1650GALLE-1
3710TRINC-3
SW
0.0 SW
3300KELAN-33
0.989
1
113.
0
2
70.0
H
19.3
0.0
29.3
1.000
1720KILINOCH-1
1
38.0 5.5
1
64.0
36.2
1
32.5
61.
3
52.9
52.9
77.4
62.0
1
SW
1
1.000
20.0 7.3
5.7
7.3
5.8
67.2
34.6
24.8
1.000
SW
1.000
33.
7 4
.3
26.5
1430COL_I_1
57.3
6.5
17.3
0.996
2560PANNI-2
34.
6
38.
7
90.7
15.2
3510SITHA-33
29.0
3.2
1
29.0
15.7
0.988
9.9
1.000
1440KATUNA-1
1
1.000
104.
5
16.3
104
.1
14.
3
1.1
61.8
1.5
1450MAHO-1
3450MAHO-3
1
1580KOTUG-1
1.000
1
1.000
1470VAUNAT-1
1.000
1.000
1
1.000
1
3460POLON-3
40.8
1.000
42.3
6.8
0.983
51.6
1.000
1.000
3490PALLEK-3
1.000
1
SW
0.0
1320NAULA-1
3320NAULA-3
1
1.000
1.000
1.000
3330MONARA-3
1
1340BELIAT-1
3340BELIAT-3
1.000
1
5.8
35.9
0.989
93.
1
0.6
34.
6
SW
1
20.2
46.
2
65.
8
0.0
1.000
1820ATURU-1
0.986
0.983
2.1
SW
1.000
0.980
1.000
1
1.000
0.986
3470VAUNAT-3
1.000
1.000
3780VALACH_3
70.0
H11
3.0
1.000
2225UPPER-KOTH-2
1 2
1
42.
3
61.3
1980COL_B_1
14.6
16.
5
28.5
28.
5
18.
3
32.5
27.7
0.979
57.3
34.8
1
57.3
35.5
28.8
SW
1
SW
0.0
27.0
83.8
26.
9
27.0
83.8
26.
9
86.
5
1770KIRIB-1
0.0
1530THULH-1
1.000
1655WELI-1
3655WELI-3
1.000
SW
1
38.0
3440KATUNA-3
1.000
1.000
1815N_CHILAW-1
1.000
1.000
1.000
1.000
94.3
94.
1
6.0
5.3
1.000
1960MAHIYA
3960MAHIYA-3
3590SAPUG-3A
37.
6
3420HORANA_3
1410KUKULE-1
136
.0
60.
4
136.
4
1500KOSGA-1
1970PADUKKA-1
1120WIMAL-1
28.
8
16.
7
1300KELAN-1
1.000
1690HABAR-1
1.000
2705NEWANU-2
2
1.000
1.000
3581KOTU_NEW_3
1800MATUG-1
0.0
3820ATURU-3
2220KOTMA-2
41.5
1810PUTTA-1
86.
5
0.976
3705NEWANU-3
0.972
1.000
25.2
3
54.0
33.5
H
1.000
1.000
33.7
136
.0
60.
4
136.
4
60.8
1.000
3150AMPA-3
1150AMPA-1
0.0
1
3770KIRIB-3
1190COL_K_1
4190COL_K_11
1
7.2
1
1.000
1535KEGA-1
1330MONARA-1
1.000
97.
3
SW
0.0
1420HORANA_1
1.000
SW
49.9
32.5
1.000
0.969
1.000
1.000
1.000
1900PNNALA
1.000
1725TRINC-PS
1.000
2650GALLE-2
60.8
1.000
1
2135NEW-POLP 2
1.000
1.000
1.000
1135NEW-POLP-1
1990KIRIND-1
3990KIRIND-3
1.000
1.000
1
2990KIRIND-2
1.000
1
2720TRINC-2
1691NHAB-1
1.000
1600BOLAW-1
27.8
20.1
156
.1
4.2
156.
9
0.8
156
.1
4.2
156.
9
0.8
35.9
0.956
1.000
1
1290KALUT-1
1.000
3290KALUT-3
1.000
1
15.4
26.
9
15.4
26.7
15.
4
26.
9
1930SURI'WEWA-1
1.000
3930SURI'WEWA-1
1.000
1
1.000
W2W1
1
1
1
1
2
0.0
1.000
SW
0.0
88.9
1.000
1.000
67.9
1.000
2970PADUKKA-2
1480KAPPAL-1
1.000
1730CHUNNAKAM-1
3720KILINOCH_3
SW
0.0
1160INGIN-1
3410KUKULE-3 _1
1.000
1
20.
0
92.2
10.0
91.
5
7.3
3 4
1
1.000
1.000
W4
1.000
1 2
1.000
1.000
SW
0.0
0.0
SW
SW 0.0
SW
0.0
SW
52.4
3570BIYAG-3
1100LAX-1
2815NCHILAW-2
126.
6
50.5
91.
8
38.
6
34.8
9.2
D
3535KEGA-3
1.000
3480KAPPAL-3
5707NEWAN-D2
1.000
29.
0
SW
28.
6
SW
48.
3
SW 0.0
SW 0.0
SW
37.
5
SW 0.0
SW
19.
6
SW
SW
50.
3
30.7
SW
18.
8
1.000
1460POLON-1
1180BROAD-1
1880AMBALA
1200UKUWE-1
4810PUTTA_G1
4811PUTTA_G2
1.000
4812PUTTA_G3
1.000
3
1.000
SW
3970PADUKKA-3
SW 0.0
1.000
476.9
182.6
475.6
243.6
213
.9
13.
3
214.
1
8.5
4350COL-L-11
1.180
0.95001.0000 * 13
0.8
126.
0
130
.8
* 0.0
1.0000
0.95001.0000 * 13
0.8
130
.8
* 0.0
0.0
82.0
99.2
82.
0
0.993
1
42.5
26.3
42.5
38.4
0.993
1
42.5
26.3
42.5
38.4
1
37.4
37.4
28.8
5.4
36.9
5.4
47.
1
4260COL-N-11
0.970
1
26.7
11.4
15.7
13.
4
38.
7
13.4
26.3
5.0
20.7
5.0
28.
6
23.
1
23.1
15.
4
0.981
1 1
1.000
3730CHUNNAKAM-3
1.000
1280MANNAR-1
1240VAVUN-1
3240VAVUN-33
2690NHAB-2
3691NHAB-3
1780VALACH_1
3280MANNAR
1490PALLEK-1
1.000
1940UMAOYA-1
4252RANTE-G2
1.000
SW
3816PUTTA-W
2810PUTTALAM-PS
3810PUTTA-3
3815NARAKKA-3
3860MADAM-3
1860MADAM-1
0.0
1.000
3600BOLAW-3
153.
3
3910ANIYA
1910ANIYA
16.3
4251RANTE-G1
1140CANYO-1
3500KOSGA-3
1.000
1.000
0.0
3640DENIY-3
1.000
172
.7
35.1
173.
7
33.
0
6.0
61.
6
139.
1
127.
9
127.
2
8.2
1310SAPUG-1P
1.000
94.3
5.3
1.9
138
.8
41.1
1640DENIY-1
3301KELAN-3A
1840JPURA_1
26.7
14.3
1.000
1.000
49.5
1890DEHIW_1
1435COL_A_1
8.2
1920COL_C_1
4920COL-C-11
1.0000
109
.3
126.
0
109
.3
0.0
100
.9
29.
8
26.7
99
3551KOLON-3B
3550KOLON-3A
84.9 0.977
57.
3
0.983
22.2
4351COL-L1-11
4352COL-L2-11
3890DEHIW_3
0.969
0.976
4430COL_I_11
4980COL_B_11
3565PANNI-T
0.983
0.990
0.967
0.980
0.969
0.953
0.982
0.980
0.981
1
600.
0
188
.6R
1
227.
0
285.
0R
3580KOTUG-3
0.999
1,200 sq.mm cable
1,000 sq.mm cable
1,600 sq.mm cable
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
N/A
N/A
90%
I
93%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
58%
I
N/A
N/A
N/A
55%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
61% I
62%
I
61% I
60% I
40%
I
38%
I
N/A
N/A
2% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
22%
I
22%
I10
4% I
56%
I
56%
I
N/A
N/A
N/A
N/A
N/A
N/A
56%
I
56%
I
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
N/A
57% I
53%
I
N/A
N/A
40%
I40
% I
N/A
40%
I40
% I
N/A
81%
I
95%
I
58%
I
N/A
N/A
N/A
63% I
63% I72%
I
43% I
44%
I
N/A
N/A
N/A
48%
I
48%
I
85%
I
72%
I
86%
I
37% I
24% I
61%
I11
5% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
9% I
9% I
47%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
48%
I
31%
I
18% I
31%
I
18% I
N/A
N/A
N/A
N/A
N/A
N/A
N/AN
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
47%
I
N/A
N/A
93%
I
93%
I
N/A
N/A
N/A
61%
I
N/A
69%
I
48%
I
N/A
N/AN
/A
N/A
N/A
N/A
2% I
37%
I
N/A
N/A
N/A
N/A
N/A
47%
I
28%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
21%
I
22% I
109%
I
N/A
N/A
12% I
12% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
43% I
N/A
40%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
62%
I
45%
I
40%
I
N/A
N/A
N/A
N/A
N/A
N/A
33%
I
40%
I40
% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
N/A
N/AN
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
71%
I
71% I
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
14%
I 14%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
41% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
55%
I40
% I
60% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
98% I
45% I
69%
I
73%
I
N/A
69%
I
73%
I
N/A
46%
I
92%
I92
% I
51%
I
17% I
50%
I
18%
I
13% I
13% I
N/A
N/A
47%
I
51%
I
N/A
629%
I
364%
I
2305KERAWALA_2
1.010
4
113.
0
70.0
H
5
113.
0
70.0
H
6
54.0
33.5
H
0.998
2580KOTUG-2
1.000
2300KELAN-2
0.997
2570BIYAG-2
1.000
2830VEYAN-2
1.000
2350COL-L-2
93%
I
93%
I
45%
I
N/A
N/A
N/A
3305KERA-3
0.999
1270COL-M-1
0.984
1350COL-L1
0.986
94.
5
47.
2
94.5
42.6
1750COL_E-1
0.982
57.1
18.4
57.
0
26.
0
1760COL_F-1
0.984
1260COL-N-1
0.983
21.
3
52.
6
21.3
49.3
38%
I29
% I
26% I
4270COL-M-11
0.954
4760COL_F-11
0.958
1110N-LAX-1
30.
4
SW
0.0
0.0
65.6
140.
4
18.1
1130POLPI-1
1.000
1.000
1680KURUN-1
3630BALAN-3
1.000
1.000
1.000
3520NUWAR-3
1.000
3540ORUWA-3
1.000
3530THULH-3
1510SITHA-1
1630BALAN-1
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
0.965
1705NEWANU-1
1700ANURA-1
1.000
1850PANAD-1
1.000
0.978
1.000 1.000
1.000
1870K_NIYA-1
1830VEYAN-1
1.000
1740RATNAP-1
3740RATNAP-3
3870K-NIYA-3
1.000
3840JPURA_3
0.983
0.942
3800MATUG-3
1.000
60.7
54.6
27.8
10.5
54.9
13.5
7.4
33.6
12.4
1.0
48.7
17.5
111
.9
61.
5
111.
9
111.
9 33.1
140
.414
0.4
65.6
0.0
0.0
140
.4
65.6
0.0
0.0
67.2
27.9
19.
0
2.2
19.
0
2.2
54.
4
67.0
44.6
83.7
26.
4
54.1
35.8
1.2
113
.1
1.4
111.
6
113
.1
1.4
111.
6
177
.5
234.
4
180.
1
224
.4
1
1
1
1
1
1
1
1
60.7
34.4
1
62.0
36.8
1 1
1 1
1
1
1
SW
2
1
1
1
0.0
0.0
0.0
1
1
57.3
1
1
71.8
61.4
1
SW
0.0
1
1
1
2 2 3
2
2
1
1 2
3 4
1
SW 0.0
1
1
1
SW 0.0
1
28.6
1
1
27.9
3
1
1
1
1
1
77.4
45.9
1
54.4
3
1
84.9
1
67.0
1
2 1
1
1
1
1
1
1
1
0.0
103.5
1.000
1.000
3560PANNI-3
1590SAPUGA-1
32.1
3830VEYAN-33
61.
3
31.
0
61.6
31.4
7.0
61.
3
31.
0
61.6
38.
7
7.0
3302KELAN-3B
17.2
1
SW 0.0
51.9
1
1
1
1 1
1
1
1
1.000
3880AMBALA
1
1.000
3900PANNAL
1.000
1
1
1.000
1.000
1
SW
0.0
0.0
SW
SW
1.000
1
113.
0
2
70.0
H
31.4
30.9
1.000
1720KILINOCH-1
1
38.0 4.4
1
84.9
67.1
36.2
1
32.5
87.
6
78.4
78.4
77.4
62.0
1
SW
1
20.0
48.7
17.5
48.
7
17.
5
67.2
34.4
SW
1.000
33.
7
26.5
1430COL_I_1
57.3
51.9
17.3
4430COL_I_11
1.012
52.
5
38.
7
140.
4
14.0
3510SITHA-33
29.0
3.8
1
29.0
15.7
1.021
10.6
1.000
1440KATUNA-1
1
1.000
1
1580KOTUG-1
1.000
1
1
1.000
1
48.3
1.000
1.000
51.7
1
SW
0.0
1
1
1
7.4
35.9
1.007
2.1
1.6
52.
5
SW
1
20.1
61.
5
111
.9
0.0
1.000
1820ATURU-1
0.985
1.000
7.9
SW
0.986
3551KOLON-3B
1
1.000
1.000
70.0
H11
3.0
1 2
1
49.
7
87.6
0.979
22.1
24.
0
2.2
2.2
10.
0
32.5
27.6
0.985
57.3
34.0
1
57.3
35.5
55.1
SW
1
SW
0.0
64.
3
219.
9
65.0
64.
3
219.
9
65.0
217
.7
0.0
1530THULH-1
1
38.0
3440KATUNA-3
1815N_CHILAW-1
1.000
1.000
1.000
1960MAHIYA
3960MAHIYA-3
3590SAPUG-3A
1410KUKULE-1
118
.9
92.
0
119.
3
1500KOSGA-1
1970PADUKKA-1
55.
1
16.
3
2
1.000
1.000
3581KOTU_NEW_3
0.0
3820ATURU-3
1810PUTTA-1
217
.7
3705NEWANU-3
0.979
13.5
3
54.0
33.5
H
33.7
118
.9
92.
0
119.
3
92.3
1.000
0.0
1
3770KIRIB-3
1
7.2
0.993
1
1.000
1535KEGA-1
3550KOLON-3A
1.000
40.
2
SW
0.0
SW
32.5
1.000
0.982
1.000
1.000
1900PNNALA
1.000
1725TRINC-PS
1.000
92.3
1.000
1
1.000
1.000
1135NEW-POLP-1
1990KIRIND-1
3990KIRIND-3
1.000
1.000
1
1
2720TRINC-2
1600BOLAW-1
27.8
20.1
35.9
1.000
1
1
100.
7
38.
3
100.
7
39.8
100
.3
38.
3
1
W2W1
1
1
1
1
3580KOTUG-3
2
0.0
1.000
SW
0.0
1.000
1.000
152.
8
1730CHUNNAKAM-1
SW
0.0
1.000
1
20.
5
3 4
1
1.000
1.000
W4
1 2
1.000
SW
0.0
0.0
SW
SW 0.0
SW
0.0
SW1100LAX-1
2815NCHILAW-2
37.8
54.7
1.0
41.
5
36.8
D
3535KEGA-3
1.000
28.
6
SW
28.
6
SW 0.0
SW 0.0
SW 0.0
SW
38.
6
SW 0.0
SW
0.0
SW
SW
35.5
SW
19.
2
1180BROAD-1
1.000
1
SW
3970PADUKKA-3
SW 0.0
333
.5
9.0
1 2
1
54.4
36.8
1
100
.3
1 1
1.000
1.000
1280MANNAR-1
2690NHAB-2
3280MANNAR
3860MADAM-3
1860MADAM-1
0.0
1.000
3600BOLAW-3
54.9
3910ANIYA
1910ANIYA
3500KOSGA-3
1.000
1.000
177
.5
234.
4
180.
1
224
.4
31.0
8.1
1310SAPUG-1P
1.000
1.2
1640DENIY-1
3301KELAN-3A
1840JPURA_1
39.8
5.8
1890DEHIW_1
1435COL_A_1
3710TRINC-3
1710TRINC-1
1.000
1.000
3480KAPPAL-3
1240VAVUN-1
3701ANURA-3B
3700ANURA-3A 1480
KAPPAL-1
2705NEWANU-2
1.000
1.000
3690HABAR-3
1320NAULA-1
3320NAULA-3
3460POLON-3
1460POLON-1
1780VALACH_1
3780VALACH_3
1210BOWAT-1
1200UKUWE-1
1490PALLEK-1
3490PALLEK-3
3200UKUWE-3
1770KIRIB-1
2250RANTE-2
1250RANTE-1
3250RANTE-3
4252RANTE-G2
4251RANTE-G1
3470VAUNAT-3
3620BADUL-3
1620BADUL-1
1.000
1940UMAOYA-1
1520NUWAR-1
1120WIMAL-1
1.0003120WIMAL-3
1140CANYO-1
1170SAMAN-1
1400HAMBA-1
3400HAMBA-33
1670MATARA-1
1655WELI-1
3655WELI-3
SW
0.0
1.000
3670MATARA-3
1.000
0.0
3650GALLE-3
0.0
1650GALLE-1
2650GALLE-2
1880AMBALA
1800MATUG-1
1420HORANA_1
3420HORANA_3
1790RATMA-1
3790RATMA-3A
3850PANAD-3
1290KALUT-1
3290KALUT-3
3890DEHIW_3
4260COL-N-11
26.7
11.4
26.
7
11.
4 97.
8
64.
6
98.0
53.2
0.985
4980COL_B_11
1980COL_B_1
1550KOLON-1
4920COL-C-11
1920COL_C_1
42.5
26.3
42.5
26.3
333.
8
12.
4
0.964
Long Term Transmission Development Plan 2011-2020 Annex C-15: Year 2020 Sri Lanka Transmission Network - Minimum Loading Condition
37.4
22.2
54.
4
46.
8
SW
1.000
3810PUTTA-3 1.000
3815NARAKKA-3
1.000
3450MAHO-3
1450MAHO-1
1.000
1.000
3816PUTTA-W
2810PUTTALAM-PS
4812PUTTA_G3
4810PUTTA_G1
4811PUTTA_G2
1.0001.000
5707NEWAN-D2
1.000
3240VAVUN-33
1.000
1.000
3720KILINOCH_3
3730CHUNNAKAM-3
3691NHAB-31691
NHAB-1
1.000
1.000
1.000
1690HABAR-1
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000 1.0001.000
2230VICTO-2
2240RANDE-2
2220KOTMA-2
2225UPPER-KOTH-2
1.000
1.000
1.000
1.000
1.000
1.0001.0001.000
1.000
1.000
1.000
1.000
1.000
1.000 1.000
1.0001330MONARA-1
3330MONARA-3
1160INGIN-1
3160INGIN-3 1.000
1.000
3150AMPA-3
1.000
1.000
1150AMPA-1
1.000
1470VAUNAT-1
1.000
1.000
1.000
1.000
3640DENIY-3
1.0003410KUKULE-3 _1
1.000
1340BELIAT-1
1.000
3340BELIAT-3
1.000
1.000
1.000
1.000
3660EMBIL-3
1.000
1.000
1.0004650GALLE-SV1.0001.000
1.0001.000
1.000
1.000
1.0001.000
1.000
1.007
1.000
1.000
0.981
0.993
0.969
0.962
99
46.6
57.
3
30.
8
0.976 0.976
4435COL_A_11
39.
0
34.7
50.1
3570BIYAG-3
1.052
8.7
55.3
1,600
sq.m
m cable
1,200 sq.mm
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
N/A
N/A
90%
I
94%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
58%
I
N/A
N/A
N/A
63%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
63% I
23%
I
63% I
58% I
12%
I
4% I
N/A
N/A12
% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
89%
I 89%
I
N/A
N/A
N/A
N/A
N/A
N/A
89%
I
89%
I
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
N/A
54% I
20%
I
N/A
N/A
61%
I61
% I
N/A
61%
I61
% I
N/A
80%
I
85%
I
58%
I
N/A
N/A
N/A
N/AN/AN
/A
N/A
N/A
N/A
N/A
N/A
8% I
8% I
84%
I
71%
I
86%
I
70% I
18% I
27%
I11
6% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
17% I
17% I
77%
I
N/A
38%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
34%
I
N/A
N/A
N/A
N/A
79%
I
N/A
N/A
80%
I
N/A
94%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
87%
I
N/A
N/A
48%
I
70%
I
18% I
70%
I
18% I
N/A
N/A
N/A
N/A
N/A
N/A
N/AN
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
93%
I
93%
I
N/A
N/A
N/A
60%
I
N/A
69%
I
64%
I
N/A
N/AN
/A
N/A
N/A
N/A
12%
I
36%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
94%
I
N/A
N/A
38%
I
6% I
107%
I
N/A
N/A
30% I
30% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
39%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
23%
I
45%
I
39%
I
N/A
N/A
N/A
N/A
N/A
N/A
61%
I61
% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
N/A
N/AN
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
48%
I 48%
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
26%
I16
% I
61% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
81%
I
N/A
N/A
69% I
26% I
50%
I
52%
I
N/A
N/A
77%
I
12%
I
N/A
2560PANNI-2
183
.6
12.
8
2570BIYAG-2
1.030
2970PADUKKA-2
1.000
2300KELAN-2
1.022
2580KOTUG-2
1.000
2990KIRIND-2
1.000
2135NEW-POLP 2
1.000
5.2
183.
7
14.
3
201
.8
2190COL_K_1
2350COL-L-2
1.023
239.
9
12.
7
2270COL-M-1 2
39.6
6.8
202.
2
21.
9 1.021
1.020
2305KERAWALA_2
1.024
4
113.
0
70.0
H
5
113.
0
70.0
H
6
54.0
33.5
H
99
600.
0
857
.3R
2830VEYAN-2
1.000
99
10.
3
884.
0R
5303KELAN-D3
0.949
111.
9
78.4
1.019
329.
8
44.
5
329
.3
27.
0
329.
8
44.
5
329
.3
27.
0
54% I
44% I
63%
I
93%
I
93%
I
45%
IN
/A
1046
% I
884%
I
89%
I
60% I60
% I
4760COL_F-11
7. 2
18 .
1
0.946 0.946
42.
5
26.
3
42.
5
26.
3
0.955
4270COL-M-11
4750COL_E-11
37.
4
22.
2
0.9620.970
0.981
4190COL_K_11
4351COL-L1-11
4352COL-L2-11
32%
I
49%
I
90%
I
90%
I
1560PANNI-1
0.983
1750COL_E-1
1760COL_F-1
1260COL-N-1
1300KELAN-1
0.987
95.1
61.2
95.
0
69.
5
34.3
17.8
0.982
32.
8
27.
7
21.
8
34.
3
27.7
31.1
0.982
1.002
1930SURI'WEWA-1
1.000
1660EMBIL-1
1.000
111
.9
61.
5
42% I
19%
I
20% I
89%
I
3565PANNI-T
0.997
3305KERA-3
1.014
3930SURI'WEWA-1
1.000
0.980
3300KELAN-33
N/A
3.3
14.8
7.4
14.
5
3.3
14.8
7.4
14.
5
5.3
67.9
5.4
67.
8
0.0L4.
0
0.0
0.0
18.4
112.
9
0.0L6.
0
8.3
32.8
8.4
32.
7
2.1
7.5
2.1
7.5
10.9
14.9
9.3
14.
7
18.
1
72.
6
19.0
72.9
0.6
0.5
39.6
2.4
21.
0
2.1
21.0
2.4
2.1
21.0
1.9
16.0
4.5
15.
8
1.9
16.0
4.5
2240RANDE-2
2250RANTE-2
3630BALAN-3
1.007
4760COL_F-11
0.999
3520NUWAR-3
1520NUWAR-1
0.989
3540ORUWA-3
1540ORUWA-1
1850PANAD-1
0.996
1.003
3790RATMA-3A
1.006
3850PANAD-3
3160INGIN-3
1.004
1830VEYAN-1
0.999
3565PANNI-T
0.993
3840JPURA_3
1.019
4435COL_A_11
3890DEHIW_3
4650GALLE-SV
0.975
12.
5
1.3
12.5
1.5
12.
5
1.3
12.5
1.5
4.7
5.9
6.3
4.7
4.7
6.3
6.9
4.4
6.9
4.4
54.8 5.1
53.
6
4.3
54.8
53.
6
4.3
3.9
7.5
3.9
58.1
18.
5
56.
5
20.1
58.1
56.
5
20.1
1.2
63.
7
71.
2
63.8
68.7
3.8
31.
5
0.0
27.
0
2.6
0.0 0.0
27.0
4.2
42.0
39.8
44.8
40.0
14.2
43.0
0.0
14.
7
9.3
7.5
2.1
4.4
8.2
4.4
6.6
22.6
10.
0
4.3
16.
0
0.6
16.1
0.8
0.6
16.1
21.1
7.1
20.
8
5.3
24.
8
13.1
24.
8
13.1
12.1
75.6
21.8
25.
3
58.0
11.7
1.1
22.0
16.0
27.0
13.2
1.8
13.
1
0.5
13.2
1.8
13.
1
0.5
0.0
11.
0
11.0 1.8
11.
0
3.4
11.0 1.8
105
.7
106.
0
31.
2
106.
0
27.4
41.0 5.1
1.1
0.0
0.0 0.0
0.0
27.6
18.0
4.7
0.0
4.0
66.
3
9.3
71.0
5.0
66.
3
9.3
71.0
33.
0
18.
9
33.0
18.7
33.
0
18.
966
.0
64.
9
42.
7
13.0
8.0
32.8
16.
5
32.
8
16.5
32.8
16.
5
32.
8
16.5
12.
8
20.0
39.
5
6.7
40.0
7.0
64.9
64.9
1.5
0.4
1.5
0.6
32.0 2.5
49.
7
17.
321
.749
.0
8.3
38.5
0.5
2.0
0.5
0.1
112
.911
2.9
18.4
0.0
0.0
112
.9
18.4
0.0
0.0
50.0
12.1
9.4
19.
4
10.
5
19.5 9.4
19.
4
10.
5
37.0
0.8
52.6
4.8
52.
6
4.7
4.8
18.
6
22.0
13.
9
72.
0
13.
9
0.6
13.
5
1.9
13.
5
1.9
43.
0
56.8
34.3
29.0
84.9 6.5
125.
2
27.9
16.0 6.3
10.0
36.0 2.4
0.0
0.02.7
31.
0
2.8
10.8
5.8
2.4
10.8
5.8
2.4
1.0
44.
1
4.0
44.1
4.0
44.
1
4.0
44.1
4.0
4.5
12.3
4.5
14.
6
12.3
4.5
14.
6
74.
0
7.1
74.2
9.1
1
40.0
5.0
L
38.0
1
20.0
12.4
H
1
36.5
R
1
3.0
1
4.0
32.0
15.0
1
27.0
5.2R
27.0
5.2R
1
39.8
22.5
1
54.2
32.1
1
39.0
13.0
1
40.0
1
24.0 6.0
1
9.0
2.0
1
1
104.
0
1
40.0
SW
2
61.0
1
22.0 6.0
1
16.0
1
43.0
15.0 4.0
1
66.0
32.0
1 47
.2
1
42.0
23.0
1
55.0
47.0
1
3.0
SW
5.0
1
148.
3
16.
4R
1
8.0
1
20.0
7.0
2
67.0
25.
0L
2 3
2
25.0
3.0
L
2
25.0
1
1
60.0
37.2
H
2
19.0
11.8
H
3 4
1
58.0
28.0
SW
20.
0
1
32.0
16.0
1
43.0
16.0
1
4.0
SW
9.8
1
21.0
1
1
12.1
3
72.0
1
37.0
18.0
1
68.0
37.0
1
1
12.0 9.0
1
59.0
35.0
1
43.0
3
1
40.2
1
56.8
1
21.0
2 1
38.0
18.2
R
1
37.0
16.0
1
51.0
15.0
1
32.0
15.0
1
37.0
1
19.0
1
49.0
1
35.0
12.0
15.
0
4.0
14.0
11.0
0.0L
4.0
27.4
0.8
77.0
25.0
1.7
29.
5
1.7
0.0
37.
0
37.0
0.8
7.4
SW
15.
1
29.
6
5.8
29.8
7.5
12.0
7.0
L
3.0
1.2
40.0
4.7
1
14.0
3.0
10.0
1
16.0
0.0L
1
15.0
0.0L
2.0
1
6.0
0.0L
1
9.0
2.0R
1
11.0
0.0L
1
5.0
0.0L
1
9.0
3880AMBALA
1.000
11.0 0.2
12.
0
10.
9
12.0
8.9
1 11
.0
5.0
1
41.0
21.0
41.0
6.0
1
31.0
15.0
1.007
1.002
1
5.0
4.7
5.0
4.2
0.0
0.0
27.
0
2.6
SW
15.
0
SW
1.016
1 2
70.0
H
1720KILINOCH-1
4.8
15.6
5.7
2.7
15.6
15.
5
22.0
24.0
29.0 1.0
1
6.4
12.
56.5
40.2
26.0
17.1
1
24.4
50.
5
48.9
48.9
59.0
54.2
4.5
5.1
4.5
1.6
4.5
5.1
4.5
29.0
6.0
SW
15.0 4.3
3.0
2.0 0.8
5.0
2.0
20.9
5.3
20.
9
4.7
20.9
5.3
20.
9
4.7
3.0
5.2
5.2
0.0
7.9
27.6
18.0
27.
6
18.
0
2.7
47.0
50.0
24.2
18.7
19.5
10.8
19.0
27.
0
22.5
47.2
40.0
7.4
4430COL_I_11
1.007
2560PANNI-2
11.
0
29.
5
112.
9
3.4
17.0
22.0
2.1
22.0
12.0
9.1
16.0
L
1.006
3.7
34.0
1
10.7
1.7
0.4
1.7
16.
5
4.5
16.5
4.2
2.6
2.1
2.6
16.
516
.5
4.2
4.5
7.5
1.0
7.5
0.5
6.2
38.5
6.5
1450MAHO-1
3450MAHO-3 7.
1
18.0
18.1
1580KOTUG-1
11.0 4.4
4.2
3.1
11.0
4.0
1470VAUNAT-1
0.980
0.1
7.0
0.4
0.970
19.0
8.0
7.3
5.0
3.0
5.0
3.6
5.0
3.0
3.6
33.7
1.1
0.8
31.0
0.2
29.3
6.0
0.992
3490PALLEK-3
0.992
10.0 0.2
10.0
5.0
5.0
0.8
5.0
0.1
5.0
5.0
0.1
6.0
2.0
2.0
3330MONARA-310
.010
.0
2.0
3.4
1340BELIAT-1
3340BELIAT-3
17.0
17.0
5.0
25.9
8.7
4.4
8.8
5.8
8.8
6.3
25.
8
0.7
1.1
27.5
1.006
19.3
1.8
11.
0
29.0
1
7.9
42.
7
64.
9
64.5
H
10.
1
2.2
SW
1.000
2.0
0.3R
3470VAUNAT-3
1.002
3780VALACH_3
32.0
113.
0
65.2 7.2
65.
1
9.4
65.2 7.2
65.
1
9.4
1
75.0
36.
3L
2
20.0
50.5
1980COL_B_1
1.018
16.2
18.
3
0.7
0.7
1.6
24.4
19.0
25.4
19.9
25.4
15.8
26.1
24.0
24.
0
2.9
12.0
1.6
12.
0
1.9
1.5
26.
1
37.5
26.1
26.
1
37.5
26.1
40.
8
2.4
20.
1
34.0
23.0
1.6
0.8
5.1
3655WELI-3
1.000
5.8
29.
6
29.0
3440KATUNA-3
34.0
1.4
0.987
1815N_CHILAW-1
1.011
7.1
1.7
2.0
1.7
39.
3
0.9
2.8
21.
0
5.3
35.0
274.
7
11.
8
271
.5
31.2
274.
7
11.
8
271
.5
31.2
194.
8
37.
7
193
.3
40.4
194.
8
37.
7
193
.3
141
.4
44.8
141.
7
45.
8
141
.4
44.8
141.
7
29.2
152.
8
32.
6
150
.6
152.
8
32.
6
76.
7
6.5
76.
776
.7
4.2
6.5
51.
651
.6
51.
6
4.1
51.6
18.6
18.
6
5.0
4.8
1960MAHIYA
3960MAHIYA-3
15.7
1.9
15.
4
1.9
1.0
47.0
133
.5
10.
8
133.
8
50.
2
6.7
50.3
50.
2
50.3
7.1
7.1
0.0L
1970PADUKKA-1
67.
8
5.4
5.3
1.9
12.
0
13.0
24.0
26.
1
15.
8
29.2
6.0
5.0
1.000
150
.6
0.994
3581KOTU_NEW_3
45.
8
15.
8
10.
7
6.7
3820ATURU-3
33.0
15.
52.
7
13.0
2.0
40.
8
40.0
27.
0
4.6
27.1
3.6
27.
0
4.6
27.1
3.6
1.007
5.1
3
54.0
33.5
H
0.993
27.0
133
.5
10.
8
133.
8
10.8
43.0
60.0
5.5
5.3
19.
9
12.4
4.7
30.0 5.9
30.0
3150AMPA-3
1150AMPA-1
22.6
10.
0
22.4
8.7
1
3770KIRIB-3
4190COL_K_11
0.7
1.1
0.7
1.5
1
2.3
2.5
4.4
4.6
1330MONARA-1
1.0
20.9
5.1
22.
7
1.6
22.9
5.0
9.6
0.0
0.0
9.7
5.6
19.
7
3.3
19.9
5.0
9.6
101
.5
1.0
SW
15.
0
SW
44.7
25.0
1.015
4.0L
39.
4
1.000
1725TRINC-PS
1.000
8.7
19.0
18.
5
2650GALLE-2
10.8
35.
9
16.
8
35.9
13.5
35.9
13.5
17.0
7.0
102
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5.5
102.
6
8.8
102
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5.5
102.
6
8.8
112.
7
112
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13.
3
112.
7
8.5
112
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13.
3
1.007
5.9
10.4
13.3
10.4
13.3
10.
4
14.
0
14.1
1990KIRIND-1
3990KIRIND-3
0.999
1.004
19.0
15.0
6.0
2990KIRIND-2
1.004
117.
7
9.6
15.
0
74.
5
74.6
4.0
0.3
117
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117.
7
9.6
117
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15.
0
74.
5
0.3
74.6
4.0
42.6
19.0
1
3.0
1.0
16.
3
35.1
16.1
35.
0
16.
3
35.1
16.1
15.0
6.8
15.
0
7.1
15.0
6.8
15.
0
7.1
2720TRINC-2
5.7
12.1
37.8
H
15.1
27.5
3.3
4.4
1.001
1.7
20.
7
20.2
0.2
20.
0
1.8
20.2
0.2
20.
0
1.8
4.5
2.5
4.5
1.1
2.5
4.5
1.1
1.006
9.0
2.3
9.0
39.7
10.0
39.8
9.8
18.
6
1.1
1290KALUT-1
0.989
3290KALUT-3
1.011
21.0 9.8
21.0
9.0
29.6
1.7
29.6
1.5
29.
5
1.7
22.0
10.0
18.6
1.7
0.0
W2
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1
0.0L
1
0.0
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1
1.0
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1
0.0
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10.0
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8.5
14.
0
10.
4
5.3
14.
9
68.0
0.5
15.0
1480KAPPAL-1
36.0
3720KILINOCH_3
22.0
4.0
4.6R
19.0
42.6
1160INGIN-1
22.0
6.4
10.8
6.5
11.0
4.6
11.
0
5.5
11.0
4.6
11.
0
5.5
3410KUKULE-3 _1
0.980
1
1.0
0.6R
3.9
27.
5
4.6
27.5
3.9
0.0
0.0
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4.4
60.0
12.
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1.000
13.0
SW
SW
9.9
19.2
3.6
19.3
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38.5
1.8
5.0
3.0R
22.0
0.0
1.6
R
5.0
0.9R
51.0
0.996
3480KAPPAL-3
71.0
5.0
9.3
4.7
1.0
4.7
1.2
25.
3
SW
30.
4
SW
29.2
1.008
29.
9
5.3
6.1
29.
9
5.3
30.0
6.1
35.0
6.9
24.2
10.
4
23.
6
8.7
29.3
9.5
28.
0
7.1
6.2
22.0
10.9
4.4
4811PUTTA_G2
1.007
4812PUTTA_G3
1.007
29.6
285.
0
29.6
1.5
285
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29.6
285.
0
1.5
285
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5.0
285
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5.0
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285.
0
285.
0
1.5
SW
6.0
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18.
0
10.
7
34.
2
26.2
20.
0
26.
2
15.
3
4350COL-L-110.96671.0000 *
111.
6
58.6
111
.6
* 0.0
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0.96671.0000 * 11
1.6
111
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* 0.0
0.0
95.3
43.1
95.
3
13.6 8.4
13.6 9.6
13.6
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26.8
15.9
26.8
18.8
36.5
1.5
36.
4
12.
2
19.0
14.9
19.0
17.6
28.0
21.
5
28.
0
8.3
29.
5
1
1.5R
9.0
3.3
1.6
4.51280
MANNAR-1
7.5
29.8
2.0
19.0
3240VAVUN-33
3691NHAB-3
4.2
3280MANNAR
1.5R
1490PALLEK-1
0.8
16.
0
31.
2 1
05.7
15.7
15.
4
5.7
30.0
1.9
1.9
4252RANTE-G2
18.0S
W
40.4
4.1
2.0
4.7
4.2
76.7
12.0
39.8
0.1
41.0
3910ANIYA
1910ANIYA
13.0
4251RANTE-G1
10.4
35.
0
15.0
15.
1
3640DENIY-3
67.9
74.
0
7.1
74.2
9.1
5.0
38.6
52.6
19.2
3.6
18.6
4.8
4.7
52.6
4.5
72.
0
16.
8
35.
9
1840JPURA_1
1.5
2.7
12.
5
1.000
37.7
1435COL_A_1
4920COL-C-11
4980COL_B_11
1.0000
50.
4
58.6
50.
4
0.0
44.
9
35.
3
4352COL-L2-11
4351COL-L1-11
1.005
1.004
1.007
1.007
1.013
1.002
1.102
1190COL_K_1
1.000
1.000
1.007
1.008
1.003
0.998
0.969
3930SURI'WEWA-1
1.004
0.970
1930SURI'WEWA-1
1.000
1940UMAOYA-1
0.995
1.005
0.995
0.995
0.980
0.994
0.994
0.996
0.980
1.0201.020
1.0281.028
0.999
1.002
2970PADUKKA-2
0.980
0.9991.008
3530THULH-3
1.005
1535KEGA-1
3535KEGA-3
0.992
3705NEWANU-3
0.0
0.0
1.002
22.0
3870K-NIYA-3
3970PADUKKA-3
1.004
2.9
3570BIYAG-3
3580KOTUG-3
0.997
3830VEYAN-33
6.8
0.0
66.
3
25.
41,600 sq.mm cable
1,600 sq.mm cable
13%
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I
N/A
N/A
26%
I
19% I
31%
I
6% I
9% I
9% I
12%
I14
% I
12% I
N/A
N/A
N/A
N/A
N/A
87%
I
N/A
N/A
N/A
8% I
8% I
65% I
N/A
20%
I28
% I
N/A
86%
I
N/A
48%
I45
% I
16% I
N/A
N/A
N/A
N/A
14%
I
14%
I
36% I
N/A
27%
I
N/A
31% I
40%
I
N/A
80%
I
80%
I
80%
I81
% I
81%
I
81%
I
6% I
49%
I
50%
I
N/A
49%
I
50%
I
N/A
37%
I
26%
I26
% I
34%
I
13% I
41%
I
15%
I
N/A
N/A
15%
I
29% I
20%
I
8% I
2300KELAN-2
1.004
2350COL-L-2
2570BIYAG-2
1.003
1.004
2305KERAWALA_2
1.008
2580KOTUG-2
1.004
2225UPPER-KOTH-2
1.009
1.020
2705NEWANU-2
1.006
43.
7
1.8
44.1
21.
6
1.0122220KOTMA-2
2810PUTTALAM-PS
1.000
2815NCHILAW-2
0.998
1.001
1.0082135NEW-POLP 2
43.
7
1.8
44.1
21.
6
2690NHAB-2
1.000
2230VICTO-2
2830VEYAN-2
197.
2
30.6
197
.0
102
.0
N/A
N/A
N/A
13%
I
N/A
N/A
N/A
13%
I
40% I
3305KERA-3
1.016
3120WIMAL-3
1.000
3500KOSGA-3
1.010
3510SITHA-33
0.996
3200UKUWE-3
1.001
1.015
3302KELAN-3B
3400HAMBA-33
0.994
3550KOLON-3A
3551KOLON-3B
3560PANNI-3
1.009
3800MATUG-3
1.000
3590SAPUG-3A
1.014 3620BADUL-3
0.998
3650GALLE-3
3670MATARA-3
1.002
3600BOLAW-3
1.008
3660EMBIL-3
1.006
3690HABAR-3
0.992
1.002 0.998
0.999
3810PUTTA-3
3900PANNAL
1.000
3860MADAM-3
1.005
3816PUTTA-W
1.000
3250RANTE-3
1.010
3301KELAN-3A
1.015
3420HORANA_3
1.010
3680KURUN-3
0.998
3710TRINC-3
0.986
0.966
3815NARAKKA-3
1.020
3300KELAN-33
3320NAULA-3
0.980
1.002
3730CHUNNAKAM-3
0.980
2
3740RATNAP-3
1.006
3460POLON-3
1.001
3700ANURA-3A
3701ANURA-3B
1.0061.007
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1270COL-M-1
1.007
1350COL-L1
1.009
100
.7
43.
1
100.
7
38.3
1750COL_E-1
1.007
73.9
24.4
73.
9
26.
2
1260COL-N-1
1.007
1.0071760COL_F-1
1.008
55.
5
19.
1
55.5
15.6
1120WIMAL-1
1.003
1100LAX-1
1.001
1110N-LAX-1
1.003
1630BALAN-1
0.996
1770KIRIB-1
0.989
1530THULH-1
0.993
1820ATURU-1
1.007
1130POLPI-1
0.993
1.000
0.985
1.7
1.5
1.7
5.4
1300KELAN-1
1.008
1920COL_C_1
1.007
1.015
1
36.0
6.0L
2
36.0
6.0L
1570BIYAG-1
1.013
1400HAMBA-1
0.971
1660EMBIL-1
0.975
0.996
1510SITHA-1
0.998
1500KOSGA-1
1430COL_I_1
1.005
19.
7
6.4
19.7
1870K_NIYA-1
1.011
1550KOLON-1
18.
6
1560PANNI-1
1.008
1790RATMA-1
1.004
1890DEHIW_1
1.005
1410KUKULE-1
1.000
0.985
1590SAPUGA-1
1.012
1.012
1
51.0
4.0L
25.5
2.0
25.
5
2.1
25.5
2.0
25.
5
2.1
1595ASIA-1
1620BADUL-1
1.000
1250RANTE-1
0.996
1640DENIY-1
0.981
0.971
1600BOLAW-1
1.007
1.000
1700ANURA-1
0.997
33.
0
3.4
33.6
4.5
33.
0
3.4
33.6
4.5
0.982
7.8
4.8
7.8
0.3
1690HABAR-1
1705NEWANU-1
0.997
1240VAVUN-1
0.998
1710TRINC-1
0.969
1.009
1.004
1900PNNALA
1420HORANA_1
0.984
1680KURUN-1
0.984
1440KATUNA-1
1.006 1200UKUWE-1
1860MADAM-1
0.996
1810PUTTA-1
0.998
1180BROAD-1
1
0.0
0.2
0.0 0.0
10.4
14.1
1135NEW-POLP-1
1320NAULA-1
0.987
1.6
2.5
1.6
4.2
1691NHAB-1
1.0001780VALACH_1
1460POLON-1
0.981
15.
2
1.3
15.3
0.7
1800MATUG-1
0.987 1880AMBALA 1650
GALLE-10.975
6.7
3.2
6.7
4.8
6.7
3.2
6.7
4.8
1655WELI-1
1.0001670MATARA-1
0.998
1310SAPUG-1P
1730CHUNNAKAM-1
1.004
1170SAMAN-1
1740RATNAP-1
0.996
1210BOWAT-1
1140CANYO-11.007
1.003
38%
I35
% I
26% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
6% I
N/A
N/A
86%
I
86%
I
22% I
N/A
N/A
85%
I11
% I
11%
I
N/A
N/A
34%
I
34%
I
7% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
N/A
N/A
7% I
N/A
N/A
5% I
7% I
4% I
4% I
N/A N
/A
4270COL-M-11
1.027
4260COL-N-11
1.009
4750COL_E-11
1.002
4810PUTTA_G1
1.007
3.4
14.8
7.4
14.
5
3.4
14.8
7.4
14.
5
21.9
100.
0
20.
3
99.
7
0.0L4.
0
0.0
0.0
40.6
137.
7
0.0L6.
0
10.3
33.6
10.
4
33.
6
1.6
7.5
1.6
7.5
10.0
16.3
8.4
16.
1
10.
9
67.
8
11.7
68.1
2.3
2.1
40.0
2.4
21.
0
2.2
21.0
2.4
2.2
21.0
1.2
17.4
3.8
17.
2
1.2
17.4
3.8
2240RANDE-2
2250RANTE-2
3630BALAN-3
0.999
4760COL_F-11
0.966
3520NUWAR-3
1520NUWAR-1
0.945
3540ORUWA-3
1540ORUWA-1
1850PANAD-1
0.965
1.001
3790RATMA-3A
0.971
3850PANAD-3
3160INGIN-3
0.958
1830VEYAN-1
0.980
3565PANNI-T
0.991
3840JPURA_3
0.963
4435COL_A_11
3890DEHIW_3
4650GALLE-SV
0.999
12.
5
1.3
12.5
1.5
12.
5
1.3
12.5
1.5
2.6
8.7
9.1
2.6
2.6
9.1
5.2
7.2
5.2
7.2
56.8 6.8
55.
5
5.6
56.8
55.
5
5.6
5.2
7.6
5.1
63.3
15.
2
61.
4
17.3
63.3
61.
4
17.3
1.3
60.
9
71.
4
61.0
68.9
1.0
31.
7
0.0
27.
0
2.6
0.0 0.0
27.0
4.2
42.0
67.0
79.5
40.0
14.2
43.0 0.5
16.
1
8.4
7.5
1.6
5.8
8.3
5.7
6.8
24.0
9.5
4.4
16.
0
0.6
16.1
0.8
0.6
16.1
23.4
5.7
23.
0
4.1
26.
8
11.8
26.
8
11.8
12.1
71.2
15.6
24.
4
58.0
13.3
4.6
22.0
16.0
27.0
14.9
1.8
14.
9
0.5
14.9
1.8
14.
9
0.5
0.0
11.
0
11.0 1.9
11.
0
3.4
11.0 1.9
106
.9
107.
3
64.
5
107.
3
61.3
47.2 9.0
1.1
0.0
0.0 0.0
0.0
20.5
10.8
4.7
0.0
4.0
66.
6
9.5
71.3
5.1
66.
6
9.5
71.3
33.
0
19.
1
33.0
19.0
33.
0
19.
166
.0
103
.2
66.
3
13.0
8.0
36.0
15.
4
36.
0
15.4
36.0
15.
4
36.
0
15.4
12.
8
20.0
39.
5
4.6
40.0
4.9
103.
2
103.
2
1.5
0.4
1.5
0.6
32.0 4.0
46.
2
11.
821
.849
.0
8.3
38.5
0.5
2.0
0.5
0.0
137
.713
7.7
40.6
0.0
0.0
137
.7
40.6
0.0
0.0
50.0
12.1
12.1
19.
3
13.
1
19.5
12.1
19.
3
13.
1
37.0
0.6
46.0
0.8
46.
0
0.8
0.8
12.
0
22.0
13.
9
72.
0
13.
9
0.6
19.
7
6.1
19.
7
6.1
43.
0
56.8
35.8
85.1
1.7
43.
5
51.4
11.
7
16.0 6.3
10.0
36.0 2.4
0.0
7.53.3
31.
0
2.8
9.4
5.0
1.6
9.4
5.0
1.6
0.9
45.
9
4.8
45.9
4.8
45.
9
4.8
45.9
4.8
20.
7
32.
3
20.7
30.1
32.
3
20.7
30.1
158
.8
51.
5
159.
7
53.2
1
40.0
5.1R
38.0
1
20.0
12.4
H
1
37.2
H
1
3.0
1
4.0
32.0
15.0
1
27.0
5.2R
27.0
5.2R
1
67.0
39.4
1
80.9
48.0
1
39.0
13.0
1
40.0
1
24.0 6.0
1
9.0
2.0
1
1
104.
0
1
40.0
SW
2
61.0
1
22.0 6.0
1
16.0
1
43.0
15.0 4.0
1
66.0
32.0
1 47
.2
1
42.0
23.0
1
55.0
47.0
1
3.0
SW
5.0
1
153.
7
51.3
R
1
8.0
1
20.0
7.0
2
67.0
25.
0L
2 3
2
25.0
2.9R
2
25.0
1
1
60.0
37.2
H
2
19.0
11.8
H
3 4
1
58.0
28.0
SW
18.
7
1
32.0
16.0
1
43.0
16.0
1
4.0
SW
9.8
1
21.0
1
1
12.1
3
72.0
1
37.0
18.0
1
68.0
37.0
1
1
12.0 9.0
1
59.0
35.0
1
43.0
3
1
49.7
1
56.8
1
21.0
2 1
38.0
23.6
H
1
37.0
16.0
1
51.0
15.0
1
32.0
15.0
1
37.0
1
19.0
1
49.0
1
35.0
12.0
14.
9
4.0
14.0
11.0
0.0L
4.0
61.3
1.0
77.0
25.0
3.0
29.
5
3.0
0.0
37.
0
37.0
0.6
7.4
SW
13.
8
29.
6
6.1
29.8
7.8
12.0
4.9
R
3.0
1.2
40.0
4.7
1
14.0
3.0
10.0
1
16.0
0.0L
1
15.0
0.0L
2.0
1
6.0
0.0L
1
9.0
3.0R
1
11.0
0.0L
1
5.0
0.0L
1
9.0
3880AMBALA
0.980
11.0 0.4
7.4
5.9
7.4
4.0
1 11
.0
5.0
1
41.0
21.0
41.0
6.2
1
31.0
15.0
1.000
0.995
1
5.1
4.7
5.0
4.4
0.0
0.0
27.
0
2.6
SW
14.
6
SW
1.006
1 2
70.0
H
1720KILINOCH-1
4.8
15.6
6.0
3.0
15.6
15.
5
22.0
24.0
29.0 1.3
1
1.9
7.41.
9
49.7
36.4
21.2
1
24.4
51.
2
83.4
83.4
59.0
80.9
4.5
5.4
4.5
1.9
4.5
5.4
4.5
29.0
6.0
SW
15.0 3.3
3.0
2.0 0.8
5.0
2.0
21.1
5.3
21.
0
4.6
21.1
5.3
21.
0
4.6
3.0
5.2
5.2
0.0
8.0
20.5
10.8
20.
5
10.
9
0.8
47.0
50.0
24.4
19.0
19.5
5.7
19.0
27.
0
22.5
47.2
40.0
7.4
4430COL_I_11
1.002
2560PANNI-2
28.
5
29.
5
137.
7
6.1
17.0
22.0
2.3
22.0
12.0
14.6
16.0
L
1.000
3.8
34.0
1
11.0
1.3
1.0
1.3
16.
1
2.6
16.1
2.3
3.1
4.7
3.1
16.
116
.1
2.3
2.6
1.4 4.7
1.4
5.2
0.6
32.4
0.9
1450MAHO-1
3450MAHO-3 7.
1
18.0
18.1
1580KOTUG-1
11.0 4.4
4.2
3.1
11.0
4.0
1470VAUNAT-1
0.980
0.1
7.0
0.3
0.968
19.0
8.0
7.3
5.0
3.0
5.0
3.6
5.0
3.0
3.6
34.0
3.8
0.6
31.0
0.7
60.4
6.0
0.991
3490PALLEK-3
0.990
10.0 0.3
10.0
5.0
5.0
0.8
5.0
0.1
5.0
5.0
0.1
6.0
2.0
2.0
3330MONARA-310
.010
.0
2.0
3.4
1340BELIAT-1
3340BELIAT-3
17.0
17.0
5.0
27.6
10.3
3.4
10.4
4.8
10.4
5.2
27.
4
0.3
1.1
27.5
1.001
25.9
0.8
28.
5
29.0
1
8.0
66.
3
103
.2
64.5
H
10.
0
2.9
SW
0.999
2.0
0.3R
3470VAUNAT-3
1.000
3780VALACH_3
32.0
113.
0
76.5
22.6
76.
3
24.
3
76.5
22.6
76.
3
24.
3
1
75.0
34.
2R
2
20.0
51.2
1980COL_B_1
0.975
16.1
17.
9
8.2
8.2
10.
0
24.4
19.4
34.9
27.9
34.9
19.8
26.8
24.0
24.
0
3.0
12.0
1.7
12.
0
2.0
1.5
72.5
101.
2
72.
3
72.5
101.
2
72.
3
103
.0
2.4
20.
0
34.0
23.0
1.7
0.8
6.8
3655WELI-3
1.000
6.1
29.
6
29.0
3440KATUNA-3
34.0
0.1
0.984
1815N_CHILAW-1
1.008
7.1
1.3
0.5
1.3
39.
7
2.5
1.3
21.
0
5.4
35.0
269.
5
8.0
266
.3
26.1
269.
5
8.0
266
.3
26.1
187.
8
34.
5
186
.4
36.5
187.
8
34.
5
186
.4
134
.6
40.8
134.
8
42.
0
134
.6
40.8
134.
8
26.8
158.
0
29.
3
155
.7
158.
0
29.
3
78.
5
8.4
78.
578
.5
5.9
8.4
51.
651
.6
51.
6
4.2
51.6
12.0
12.
0
0.9
1.1
1960MAHIYA
3960MAHIYA-3
15.7
0.5
15.
5
0.5
1.0
47.0
193
.7
45.
1
194.
5
81.
9
16.
8
82.2
81.
9
82.2
17.8
17.8
0.0L
1970PADUKKA-1
99.
7
20.
3
21.9
2.0
12.
0
13.0
24.0
26.
8
19.
8
26.8
6.0
5.0
1.000
155
.7
0.992
3581KOTU_NEW_3
42.
0
17.
2
9.4
16.
8
3820ATURU-3
33.0
15.
53.
0
13.0
2.0
103
.0
40.0
27.
0
4.7
27.1
3.7
27.
0
4.7
27.1
3.7
0.973
9.0
3
54.0
130.
0H
0.992
27.0
193
.7
45.
1
194.
5
47.3
43.0
60.0
5.5
5.5
19.
9
12.4
2.6
30.0 6.0
30.0
3150AMPA-3
1150AMPA-1
24.0
9.5
23.8
8.3
1
3770KIRIB-3
4190COL_K_11
0.8
1.1
0.8
1.5
1
2.3
3.5
2.7
5.6
1330MONARA-1
1.1
21.0
5.1
22.
8
1.6
23.0
5.0
9.4
0.0
0.0
9.4
5.6
19.
4
3.3
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9.3
95.
2
1.0
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14.
4
SW
44.9
25.0
1.012
23.6
H
39.
8
1.000
1725TRINC-PS
1.000
8.7
19.0
15.
2
2650GALLE-2
47.3
12.
8
15.
8
12.8
12.6
12.8
12.6
17.0
7.0
113
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10.
0
113.
8
7.2
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10.
0
113.
8
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9
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4
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9
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4
0.971
8.7
8.4
28.6 8.4
28.6
8.3
29.
2
29.3
1990KIRIND-1
3990KIRIND-3
0.985
0.991
19.1
15.0
6.0
2990KIRIND-2
0.992
112.
2
29.4
34.
6
69.
0
69.1
15.4
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0
111
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112.
2
29.4
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34.
6
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0
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0
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1
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3
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0
16.
3
35.1
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0
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6.8
15.
0
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2720TRINC-2
6.0
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9
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2
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13.
0
7.9
1290KALUT-1
0.964
3290KALUT-3
0.984
21.0 9.9
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9.0
29.6
3.0
29.6
2.9
29.
5
3.0
22.0
10.0
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1
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39.0
29.
2
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5.5
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9
68.0
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98.5
1480KAPPAL-1
36.0
3720KILINOCH_3
22.0
4.0
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19.2
42.6
1160INGIN-1
22.0
1.9
5.7
1.9
11.0
4.7
11.
0
5.5
11.0
4.7
11.
0
5.5
3410KUKULE-3 _1
0.963
1
1.0
0.6H
3.9
20.
5
1.7
20.5
2.5
0.0
0.0
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4.4
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1.000
13.0
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SW
9.8
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6.9
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38.5
0.8
5.0
3.0R
22.0
0.0
1.6
R
5.0
0.8R
51.0
0.994
3480KAPPAL-3
71.3
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9.5
4.7
1.0
4.7
1.2
24.
6
SW
27.
2
SW
29.2
0.997
29.
9
4.7
5.5
29.
9
4.7
30.0
5.5
37.9
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26.9
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26.
2
7.9
32.2
8.2
30.
6
6.3
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2.7
4811PUTTA_G2
1.009
4812PUTTA_G3
1.009
24.8
285.
0
24.8
6.2
285
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0
6.2
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5.0
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5.0
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285.
0
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0
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SW
6.0
0.998
18.
0
9.4
36.
9
4350COL-L-110.96671.0000
1.0000
0.96671.0000
55.
2
73.
2
55.3
62.0
29.
5
1
6.2R
9.0
3.9
1.9
4.51280
MANNAR-1
7.8
29.8
2.0
19.0
3240VAVUN-33
3691NHAB-3
4.2
3280MANNAR
6.2R
1490PALLEK-1
0.8
16.
0
64.
5 1
06.9
15.7
15.
5
5.8
30.0
0.5
0.5
4252RANTE-G2
18.0S
W
36.5
4.2
2.0
4.8
5.9
78.5
12.0
40.2 2.8
47.2
3910ANIYA
1910ANIYA
13.0
4251RANTE-G1
8.3
35.
0
15.0
14.
6
3640DENIY-3
100.
0
158
.8
51.
5
159.
7
53.2
0.9
32.4
46.0
12.6
6.9
12.0
1.1
0.8
46.0
20.
7
72.
0
15.
8
12.
8
1840JPURA_1
2.9
6.1
7.4
0.967
38.2
1435COL_A_1
4920COL-C-11
4980COL_B_11
1.0000
35.
5
4352COL-L2-11
4351COL-L1-11
0.973
0.969
0.963
0.955
1.000
1.000
1.000
1190COL_K_1
1.000
1.000
0.966
0.951
0.958
0.985
0.956
3930SURI'WEWA-1
0.993
0.959
1930SURI'WEWA-1
1.000
1940UMAOYA-1
0.995
1.005
0.995
0.995
0.980
0.994
0.994
0.996
0.980
1.0201.020
1.0281.028
0.996
0.982
2970PADUKKA-2
0.980
0.9980.983
3530THULH-3
1.002
1535KEGA-1
3535KEGA-3
0.990
3705NEWANU-3
0.0
0.0
1.000
22.0
3870K-NIYA-3
3970PADUKKA-3
1.020
2.9
3570BIYAG-3
3580KOTUG-3
0.999
3830VEYAN-33
6.9
7.8
66.
6
34.
91,600 sq.mm cable
1,600 sq.mm cable
13%
I
13%
I
7% I
7% I
7% I
7% I
43%
I
43%
I
7% I
48%
I
48%
I
35%
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12% I 4% I
3% I
79%
IN
/A
78% I
18%
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44%
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105%
I
132%
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48%
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36%
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48%
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17%
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37%
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16%
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16%
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18%
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13% I
25%
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37%
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65%
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53%
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38%
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27%
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17% I
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46% I
19%
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46% I
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12%
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I48
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90%
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90%
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42%
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42%
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29%
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90%
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53%
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22%
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57%
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52%
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47%
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66% I
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59%
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59%
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60%
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67%
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25%
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18% I
18% I
39%
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32% I
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64%
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74%
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65%
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14%
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53%
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21%
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62%
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38%
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23% I
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N/A
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12% I
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42%
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2300KELAN-2
0.985
2350COL-L-2
2570BIYAG-2
0.988
1.000
2305KERAWALA_2
1.014
2580KOTUG-2
1.001
2225UPPER-KOTH-2
1.000
1.020
2705NEWANU-2
1.004
48.
2
0.0
48.8
19.
1
1.0062220KOTMA-2
2810PUTTALAM-PS
1.000
2815NCHILAW-2
0.996
0.999
0.9962135NEW-POLP 2
48.
2
0.0
48.8
19.
1
2690NHAB-2
1.000
2230VICTO-2
2830VEYAN-2
N/A
N/A
N/A
14%
I
N/A
N/A
N/A
14%
I
N/A
3305KERA-3
1.022
3120WIMAL-3
0.997
3500KOSGA-3
0.996
3510SITHA-33
0.983
3200UKUWE-3
0.999
0.961
3302KELAN-3B
3400HAMBA-33
0.982
3550KOLON-3A
3551KOLON-3B
3560PANNI-3
0.975
3800MATUG-3
0.980
3590SAPUG-3A
1.004 3620BADUL-3
0.997
3650GALLE-3
3670MATARA-3
0.987
3600BOLAW-3
1.004
3660EMBIL-3
0.994
3690HABAR-3
0.989
1.000 0.996
0.997
3810PUTTA-3
3900PANNAL
0.996
3860MADAM-3
1.002
3816PUTTA-W
1.000
3250RANTE-3
1.010
3301KELAN-3A
0.961
3420HORANA_3
0.980
3680KURUN-3
0.996
3710TRINC-3
0.984
0.964
3815NARAKKA-3
0.964
3300KELAN-33
3320NAULA-3
0.978
1.000
3730CHUNNAKAM-3
0.980
2
3740RATNAP-3
0.998
3460POLON-3
0.985
3700ANURA-3A
3701ANURA-3B
0.9930.952
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1270COL-M-1
1.000
1350COL-L1
1.000
1750COL_E-1
0.9531260COL-N-1
1.000
0.9551760COL_F-1
0.953
1120WIMAL-1
1.000
1100LAX-1
0.998
1110N-LAX-1
1.000
1630BALAN-1
0.988
1770KIRIB-1
0.987
1530THULH-1
0.990
1820ATURU-1
0.963
1130POLPI-1
0.991
1.000
0.982
0.0
2.6
0.1
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1300KELAN-1
0.956
90.1
61.0
89.
9
70.
6
1920COL_C_1
0.956
1.005
1
36.0
6.0L
2
36.0
6.0L
1570BIYAG-1
1.003
1400HAMBA-1
0.960
1660EMBIL-1
0.963
0.983
1510SITHA-1
0.986
1500KOSGA-1
1430COL_I_1
0.956
58.1
53.6
58.
0
1870K_NIYA-1
1.002
1550KOLON-1
64.
4
1560PANNI-1
0.976
1790RATMA-1
0.972
1890DEHIW_1
0.967
1410KUKULE-1
0.982
0.966
1590SAPUGA-1
1.002
1.003
1
51.0
4.0L
25.5
2.0
25.
5
2.1
25.5
2.0
25.
5
2.1
1595ASIA-1
1620BADUL-1
1.000
1250RANTE-1
0.996
1640DENIY-1
0.970
0.957
1600BOLAW-1
1.003
0.991
1700ANURA-1
0.995
34.
8
4.4
35.4
5.3
34.
8
4.4
35.4
5.3
0.980
7.8
4.8
7.8
0.3
1690HABAR-1
1705NEWANU-1
0.995
1240VAVUN-1
0.997
1710TRINC-1
0.966
22.
9
15.
1
23.0
10.3
1.006
1.000
1900PNNALA
1420HORANA_1
0.957
1680KURUN-1
0.982
1440KATUNA-1
1.001 1200UKUWE-1
1860MADAM-1
0.994
1810PUTTA-1
0.993
1180BROAD-1
1
0.0
0.2
0.0 0.0
8.3
29.3
1135NEW-POLP-1
1320NAULA-1
0.985
3.3
3.5
3.3
5.2
1691NHAB-1
1.0001780VALACH_1
1460POLON-1
0.979
15.
2
1.3
15.3
0.6
1800MATUG-1
0.967 1880AMBALA 1650
GALLE-10.960
4.8
2.4
4.8
4.0
4.8
2.4
4.8
4.0
1655WELI-1
1.0001670MATARA-1
0.993
1310SAPUG-1P
1730CHUNNAKAM-1
1.003
1170SAMAN-1
1740RATNAP-1
0.988
1210BOWAT-1
1140CANYO-11.005
1.000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
7% I
N/A
100%
I
86%
I
86%
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76% I
N/A
N/A
85%
I11
% I
11%
I
N/A
N/A
36%
I
36%
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7% I
N/A
N/A
N/A
N/A
48%
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N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
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N/A
N/A
12%
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N/A
N/A
6% I
7% I
3% I
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N/A N
/A
4270COL-M-11
1.000
4260COL-N-11
1.000
4750COL_E-11
0.952
4810PUTTA_G1
1.009
1110N-LAX-1
30.
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SW
6.2
60.5
6.3
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4
3.9H6.
3
0.0
0.0
37.8
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5
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4
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6
43.
8
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7.2
3.9
2.2
5.7
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15.
5
77.
6
16.6
78.0
4.9
5.8
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2.4
29.
1
2.2
29.1
2.4
2.2
29.1
11.9
5.0
14.
6
5.1
11.9
5.0
14.
6
1130POLPI-1
1210BOWAT-1
1680KURUN-1
2230VICTO-2
2240RANDE-2
2250RANTE-2
3250RANTE-3
3620BADUL-3
1.002
3630BALAN-3
1.002
1790RATMA-1
4760COL_F-11
1.010
4750COL_E-11
1.009
1.008
3670MATARA-3
0.990
3120WIMAL-3
0.998
0.992
3520NUWAR-3
1520NUWAR-1
1620BADUL-1
0.984
3540ORUWA-3
1670MATARA-1
0.997
1660EMBIL-1
0.990
0.985
3200UKUWE-3
1510SITHA-1
1630BALAN-1
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
0.992
1705NEWANU-1
1700ANURA-1
1.002
1850PANAD-1
0.995
1560PANNI-1
1.012
1.002
3790RATMA-3A
1.009
0.999
3400HAMBA-33
3660EMBIL-3
1.006
3850PANAD-3
3160INGIN-3
1.008
3701ANURA-3B
0.998
1710TRINC-1
1.002
1870K_NIYA-1
1830VEYAN-1
3690HABAR-3
1740RATNAP-1
3740RATNAP-3
1.011
3565PANNI-T
3870K-NIYA-3
0.988
3840JPURA_3
1.002
1.023
4435COL_A_11
3890DEHIW_3
3800MATUG-3
1.000 4650GALLE-SV
1.010
3650GALLE-3
1.002
13.
8
11.
1
13.8
10.8
13.
8
11.
1
13.8
10.8
6.8
21.0
21.
3
6.8
6.8
21.
3
4.9
21.1
4.9
21.1
44.0
2.6
43.
3
2.5
44.0
43.
3
2.5
13.9
9.2
13.
8
43.3
12.
7
42.
9
12.4
43.3
42.
9
12.4
20.7
48.
8
20.
7
45.6
80.7
50.
6
2.6
0.0
0.0
0.0 0.0
0.0
2.0
58.1
52.5
50.4
54.0
13.0
42.2
5.9
2.2
5.7
7.2
1.0
15.6
10.
1
15.
5
8.8
5.1
1.2
4.1
21.
4
8.7
21.6
9.9
8.7
21.6
0.2
17.
7
0.3
15.5
44.
0
2.6
44.
0
2.6
25.6
82.9
21.8
30.
0
73.8
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6.0
29.1
20.4
0.0
33.4
8.4
33.
2
7.6
33.4
8.4
33.
2
7.6
0.0
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5
14.6 2.8
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5
4.3
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23.
9
23.9
38.
5
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6
27.8
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105
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0.0
0.0 0.0
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5
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53.7
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0
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5
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4
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5
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4
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582
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3
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5
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26.5 1.8
26.
5
1.9
26.5 1.8
26.
5
1.9
0.5
0.0
0.0
1.4
0.0 0.0
50.3
50.3
1.4
0.6
1.4
0.7
45.9 4.3
52.
1
14.
227
.864
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16.0
51.3
0.9
3.9
0.9
5.9
107
.510
7.5
37.8
0.0
0.0
107
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37.8
0.0
0.0
67.2
25.6
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11.
1
1.7
11.1 0.3
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1
1.7
50.4
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141.
1
6.0
140
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1
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36.
0
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7
20.
5
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7
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5
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4
58.2
35.6
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7
8.1
177.
1
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18.4 2.9
19.5
41.0 1.0
0.0
0.0
11.
4
28.
5
26.7
39.8
13.
2
12.5
39.8
13.
2
12.5
4.0
16.
3
5.4
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3
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16.3
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94.5
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4
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9
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4
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9
71.
9
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72.0
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2
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1
20.0
12.4
H
1
1
1
3.2
1
5.6
1
42.8
19.5
1
1
52.5
29.8
1
59.5
35.3
1
53.2
17.5
1
54.3
1
30.1 7.5
1
10.7 2.7
1
1
104.
0
1
48.2
SW
2
61.0
1
29.1 7.3
1
20.4
1
42.2
19.4 4.9
1
82.8
40.1
1 53
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1
58.1
31.3
1
71.8
61.4
1
4.0
SW
20.
3
1
68.6
16.6
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1
12.7
1
29.5
9.7
2 2
25.
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3
2
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2
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1
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60.0
5.0
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3
109.
0
4
54.0
1
73.8
35.7
SW
20.
2
1
45.9
22.2
1
60.2
21.8
1
5.9
SW
9.9
1
28.6
1
1
25.6
3
72.0
1
50.4
24.4
1
88.9
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1
27.5
1
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1
77.4
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1
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3
115.
0
0.0L
1
45.3
1
58.2
1
26.9
2 1
20.0
0.0L
1
45.1
19.2
1
53.8
15.7
1
38.7
18.7
1
50.1
1
29.4
1
64.8
1
40.9
13.4
20.
1
5.1
1.004
19.2
12.6
6.0
0.998
0.986
2.6
32.7
6.2
103.5
1.005
67.6
H
3560PANNI-3
1590SAPUGA-1
32.1
3830VEYAN-33
1250RANTE-1
5.5
38.
7
5.5
7.0
0.0
0.0
50.
4
50.4
3.3
3302KELAN-3B
15.9
SW
20.
1
15.
1
0.4
15.2
2.1
19.7
2.7
1.4
51.9
7.7
1
18.6
3.8
12.9
1
22.1
13.7
H
1
20.1
12.5
H
4.2
1
11.1
6.9H
1
15.7
9.7H
1
15.2
9.4H
1
8.5
5.3H
1
10.7
0.995
3880AMBALA
1.006
14.4
2.8
10.7
8.4
10.
6
10.
5
1 14
.4
7.0
0.998
3900PANNAL
1.003
1
73.0
37.4
73.0
12.4
1
42.3
20.5
1.004
1.007
1
SW
10.
1
10.
1
0.990
11.
0
6.2
7.6
2.9
1.006
0.0
0.0
0.0
3710TRINC-3
0.0
SW
30.
4
SW
3300KELAN-33
1.010
1
113.
0
2
70.0
H
0.0
23.8
0.999
1720KILINOCH-1
7.7
5.0
1.1
2.3
5.0
5.0
1
32.3
31.4
38.0 4.6
1
5.4 1
7.9
45.3
30.5
19.3
1
28.1
76.
4
48.9
48.9
77.4
59.5
22.2
12.
4
22.
0
9.8
22.2
12.
4
22.
0
1
44.1
9.0
SW
14.4
2.0
6.2
1.8
2.1
1
5.5
2.4
25.6
17.
4
25.
5
16.9
25.6
17.
4
25.
5
16.9
0.4
0.0
0.0
0.0
12.
0
18.2
44.0
10.4
43.
9
10.
4
7.4
59.5
67.2
34.4
24.5
11.1
7.0
1.004
SW
23.5
33.
7
23.0
1430COL_I_1
53.3
51.9
15.9
4430COL_I_11
1.008
2560PANNI-2
30.
6
38.
7
107.
5
11.1
3510SITHA-33
23.1
29.0
3.7
1
29.0
15.7
1.008
4.3
16.0
L
1.014
1440KATUNA-1
12.9
47.1
1
24.1
5.6
6.9
5.6
7.8
17.
7
7.8
17.4
26.
0
4.4
26.0
7.8
7.8
17.4
1.005
17.
7
72.2 4.4
71.
9
3.8
8.2
29.6
8.6
1450MAHO-1
3450MAHO-3 9.
6
1
25.7
25.8
1580KOTUG-1
0.992
15.0 6.4
7.7
5.4
1
15.0
5.5
0.995
1470VAUNAT-1
1.000
8.3
1
11.6
2.6
0.992
1
28.5
12.1
10.5
9.8
4.6
9.8
5.2
9.8
4.6
5.2
3460POLON-3
31.8
5.1
3.3
1.011
42.3
4.3
1.005
41.4
0.995
7.8
0.988
3490PALLEK-3
0.997
12.7
13.
5
1
12.7
5.8
6.4
7.6
6.4
6.7
6.4
6.4
6.7
SW
19.
9
1320NAULA-1
3320NAULA-3 2.
7
1
2.5
0.982
3330MONARA-312
.6
1
12.6
3.2
4.3
1340BELIAT-1
3340BELIAT-3
24.0
1
24.0
7.0
14.5
9.6
14.1
9.5
15.
4
9.5
15.
8 1
4.5
7.8
4.9
35.9
1.003
104
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4.3
30.
6
SW
40.3
1
18.2
44.
5
50.
3
33.5
H
64.5
H
10.
0
1820ATURU-1
1.006
1.016
5.2
SW
1.004
3551KOLON-3B
1.000
2.3
1
1.4H
1.004
3470VAUNAT-3
1.018
3780VALACH_3
70.0
H11
3.0
67.0
2225UPPER-KOTH-2
102.
7
13.
3
102
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12.0
102.
7
13.
3
102
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12.0
1
75.0
36.
3L
2
1
76.4
1980COL_B_1
1.031
10.7
12.
7
0.2
0.2
6.9
28.1
22.6
48.5
19.6
1
48.5
30.0
48.3
SW
1
SW
15.
230
.8 3
0.8
1.4
15.4
1.2
15.
4
1.5
14.
3
31.1
54.3
31.
0
31.1
54.3
31.
0
57.
5
3.5
20.
0
38.2
28.6
1.2
9.9
1530THULH-1
0.977
1655WELI-1
2.6
40.7 8.5
40.
5
8.9
40.7 8.5
40.
5
8.9
26.1
11.6
26.
1
11.
9
26.1
11.6
26.
1
11.
9
3655WELI-3
1.009
28.8
5.5
28.
8
6.9
SW
1
28.8
8.4
0.4
15.
1
38.0
3440KATUNA-3
47.1
7.9
0.981
0.994
1815N_CHILAW-1
1.009
9.6
5.6
8.5
5.6
78.
6
3.6
9.2
1.001
1.000
29.
1
2830VEYAN-2
8.2
40.9
321.
3
16.
5
316
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48.4
321.
3
16.
5
316
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48.4
214.
6
66.
3
212
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71.8
214.
6
66.
3
212
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167
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43.9
168.
0
44.
1
167
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43.9
168.
0
39.0
88.7
51.
8
87.
8
88.7
51.
8
102
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17.9
102
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2.3
13.
617
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5.2
65.2
65.
2
8.6
65.2
1.000
96.3
96.
1
10.5
9.7
1960MAHIYA
3960MAHIYA-3
27.1
40.3
25.
1
40.
3
1.3
3590SAPUG-3A
24.
8
59.5
1410KUKULE-1
95.
1
14.
7
95.3
36.
1
4.3
36.1
1500KOSGA-1
36.
1
36.1
3.6
3.6
6.6H
1970PADUKKA-1
60.
4
6.3
6.2
1120WIMAL-1
1.5
15.
4
16.6
30.8
48.
3
8.7
1300KELAN-1
39.0
1.019
7.6
1690HABAR-1
9.8
102
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102.
5
2.6
102
.5 8.2
102.
5
2.6
0.997
87.
8
2705NEWANU-2
145
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24.6
149.
0
22.
6
145
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24.6
149.
0
22.
6
2
250.
0
24.0
R
0.989
424
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12.8
430.
7
44.1
1.008
15.1
7.3
22.
6
7.3
15.1
7.3
22.
6
3581KOTU_NEW_3
44.
1
5.1
38.
5
1800MATUG-1
15.
3
4.3
3820ATURU-3
2220KOTMA-2
41.5
1810PUTTA-1
5.0
2.3
19.8
2.6
57.
5
1.000
3705NEWANU-3
1.002
0.998
32.
7
6.2
32.8
5.5
32.
7
6.2
32.8
5.5
1.004
1.005
27.8
3
54.0
33.5
H
0.999
1.009
33.7
95.
1
14.
7
95.3
13.9
1.021
60.2
8.0
12.6
0.0
0.0
6.8
34.5
10.1
42.5
15.5
H
3150AMPA-3
1150AMPA-1
30.
0
5.1
1.2
5.0
2.9
1
3770KIRIB-3
4190COL_K_11
1
4.5
2.2
1.9
2.2
4.6
1
3.7
1.007
3550KOLON-3A
13.5
50.2
13.
0
1330MONARA-1
12.7
24.5
16.
2
28.
0
12.9
28.4
15.
6
6.6
0.0
0.0
0.0
0.0
6.7
14.
3
6.6
11.6
19.
3
10.5
19.5
12.
1
6.5
1.002
101
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1.3
SW
20.
0
SW
51.5
11.6
32.5
0.997
0.999
0.992
424
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12.8
430.
7
44.1
1900PNNALA
79.
0
1.050
1725TRINC-PS
1.001
13.6
28.5 0.1
69.3
1.6
68.
7
0.1
69.3
68.
7
44.7
11.
5
10.8
44.7
11.
5
43.
4
10.8
12.
7
2650GALLE-2
13.9
156.
4
42.
2
156
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41.5
156.
4
156
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41.5
66.
1
42.
0
66.1
39.1
66.1
39.1
1.004
1
22.3
8.8
2135NEW-POLP 2
92.8
6.0
92.
0
11.
3
139
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28.1
139.
9
30.
1
139
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28.1
139.
9
30.
1
92.8
92.
0
11.
3 6
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27.5
27.
4
30.
8
27.5
22.8
27.
4
30.
8
1.009
42.
2
1.006
180.
1
2.9
177
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1.8
180.
1
2.9
177
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1.8
1135NEW-POLP-1
21.0
19.
2
45.5
19.
2
45.5
19.2
45.
8
45.9
19.2
45.
0
1990KIRIND-1
3990KIRIND-3
1.010
1.010
26.8
1
21.2
9.0
2990KIRIND-2
1.014
99.9
14.8
21.
5
85.
9
86.1
11.
4
7.9
99.
5
99.9
14.8
99.
5
21.
5
85.
9
7.9
86.1
11.
4
110
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29.6
110.
6
32.
0
110
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29.6
110.
6
32.
0
59.0
23.4
1
2.7
1.3
19.
6
48.4
19.7
48.
3
19.
6
48.4
19.7
21.3
6.2
21.
3
6.5
21.3
6.2
21.
3
6.5
2720TRINC-2
1.1
1691NHAB-1
0.996
30.1 8.0
8.0
30.1
8.0
1600BOLAW-1
25.6
37.8
H
17.4
124
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16.6
124.
9
14.
7
124
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16.6
124.
9
14.
7
35.9
6.0
13.
6
1.005
10.4
24.
2
7.5
2.8
7.5 0.2
7.5
2.8
7.5 0.2
5.4
2.3
5.4
1.3
2.3
5.4
1.3
1.005
10.8 2.6
1
10.8
33.6
0.3
33.7
0.1
5.1
12.2
1290KALUT-1
0.995
3290KALUT-3
1.011
28.5
13.6
1
28.5
12.1
38.7
5.5
38.7
5.4
38.
7
5.5
1
22.5
10.9
5.1
9.0
0.964
0.0
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1
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1
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0.0H
1
4.1
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1
0.3
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10.0
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22.8
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8
19.2
0.0
0.2
0.0
2
12.6
39.
4
1.004
SW
10.2
88.9
0.979
12.9
1.006
18.
7
1480KAPPAL-1
0.989
53.5
43.
4
1730CHUNNAKAM-1
3720KILINOCH_3
32.3
6.6
SW
31.
0
23.4
59.0
1160INGIN-1
35.2
17.9
11.3
5.1
11.
3
5.9
11.3
5.1
11.
3
5.9
3410KUKULE-3 _1
1.000
1
2.2
0.8R
1.011
2.9
20.
4
55.7
2.9
55.
4
3.2
3
250.
0
24.0
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4
250.
0
24.0
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1
250.
0
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0.0
1.000
0.0
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5.8
8.7
1 2
1.028
57.
8
10.3
9.0
22.
7
1.0
22.8
0.7
1.013
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20.
6
12.3
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SW
20.
0
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19.
5
SW
51.5
1100LAX-1
2815NCHILAW-2
25.0
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30.2
5.0
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45.
0
0.996
1.6
5707NEWAN-D2
0.974
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1.7
31.
0
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29.
9
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50.
5
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30.
7
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29.
8
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41.
0
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30.
2
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20.
4
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SW
46.
2
1.1
46.2 2.7
46.
2
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21.
3
46.
2
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0.999
30.
1
0.0
1.3
0.0
0.0
1.3
0.0
0.0
1460POLON-1
12.
9
2.0
13.0
0.5
22.5
11.9
48.
2
17.0
50.5
15.
7
1200UKUWE-1
49.
7
4810PUTTA_G1
4811PUTTA_G2
0.988
4812PUTTA_G3
0.988
40.5
250.
0
48.1
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6
285
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3970PADUKKA-3
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101
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25.
7
38.
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1
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59.2
38.5
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4
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4350COL-L-110.95001.0000 *
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5
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13.
8
97.5
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1
42.5
26.3
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37.7
1
37.4
22.2
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27.7
1
26.7
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9
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2
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8
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58.9
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8
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4
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7
1.003
1 1
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1.017
3730CHUNNAKAM-3
1.010
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9.8
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2.1
15.2
2.2
29.4
3240VAVUN-33
47.
5
7.32690
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3691NHAB-3
1780VALACH_1 7
.7
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1490PALLEK-1
7.6
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4
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5 2
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1
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3816PUTTA-W
2810PUTTALAM-PS
0.03810
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71.8
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3860MADAM-3
1860MADAM-1
30.
2
13.
6
102.
3
15.4
77.0
6.7
3600BOLAW-3
126.
6
3910ANIYA
1910ANIYA
16.3
4251RANTE-G1
1140CANYO-1
45.9
19.2
19.
2
19.
2
3500KOSGA-3
1.001
48.
3
20.2
20.
2
3640DENIY-3
1.003
60.5
71.
9
12.1
72.0
14.
2
10.5
29.
6
141.
1
158.
1
155.
7
4.7
1310SAPUG-1P
1.008
96.3
9.7
7.6
140.8
94.5
36.
0
42.
0
66.
1
1640DENIY-1
3301KELAN-3A
1840JPURA_1
5.4
2.6
5.4
1.006
49.1
1890DEHIW_1
1435COL_A_1
7.6
1.013
1920COL_C_1
4920COL-C-11
48.
54980COL_B_11
1.0000
106
.1
119.
4
106
.1
0.0
99.
4
29.
9
33.
3
4352COL-L2-11
4351COL-L1-11
1.006
1.013
1.006
1.003
1.023
1.023
1.187
1190COL_K_1
1.006
1.037
1.003
1.014
1.002
1.001
1.0080.985
1.005
3420HORANA_3
1420HORANA_1
1.005
0.979
1.010
0.972
1400HAMBA-1
3930SURI'WEWA-1
1.005
0.972
1930SURI'WEWA-1
0.998
1940UMAOYA-1
0.997
1.000
0.989
1.003
1.015
1.000
1.020
1.016
0.999
1.003
0.995
1.0051.0011.005
1.0351.0341.030
1.023
1.0220.986
0.994
1180BROAD-1
0.986
0.986
1770KIRIB-1
1.001
3580KOTUG-3
1.015
0.979
1.024
1.016
2970PADUKKA-2
0.994
0.992
0.996
0.994
3570BIYAG-3
1.014
3530THULH-3
1.008
1535KEGA-1
3535KEGA-3
0.993
3700ANURA-3A
1240VAVUN-1
3480KAPPAL-3
1.0021.000 1880AMBALA
17.9
7.0
1650GALLE-1
17.
9
1170SAMAN-1
1.010
1,600 sq.mm cable
1,600 sq.mm cable
8% I
8% I
10% I
10% I
10% I
10% I
33%
I
33%
I
12%
I
20%
I
20%
I
50%
I
7% I 12% I
7% I
N/A
N/A
N/A
21%
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61%
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74%
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86%
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64%
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47%
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45%
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5% I
5% I
15%
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4% I
14%
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4% I
41%
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24%
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24%
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13% I
20% I
20% I
52%
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43%
I23
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82%
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57%
I
50%
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34%
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N/A
16% I
16% I
N/A
7% I
7% I
6% I
6% I
59% I
51%
I
59% I
88% I
43%
I
41%
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N/A
N/A
10%
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22% I
22% I
8% I
33%
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21%
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21%
I10
2% I
46%
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46%
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81%
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66%
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12%
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N/A
1% I
46%
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46%
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2% I
2% I
49%
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27% I 7% I
24%
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7% I
71%
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69%
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66%
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87% I
63%
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3% I
3% I
45%
I45
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N/A
45%
I45
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N/A
79%
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82%
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52%
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8% I
8% I
53%
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62% I
62% I70%
I
43% I
44%
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16% I
16% I
33%
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37%
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37%
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82%
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70%
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72%
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26% I
57% I
70%
I87
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20%
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7% I
36%
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43%
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N/A
59%
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41%
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N/A
N/A
48%
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31% I
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66%
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13% I
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14% I
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19%
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38%
I
N/A
N/A
N/A
N/A
N/A
100%
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29%
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79%
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80%
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94%
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74%
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100%
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100%
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87%
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85%
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N/A
48%
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N/A
17% I
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7% I
48%
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34%
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I
34%
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33%
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33%
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33%
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23%
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79%
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93%
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93%
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35%
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60%
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52%
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11% I
11%
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51%
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4% I
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10%
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36%
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84%
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12%
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32%
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14%
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44%
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11%
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30%
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26%
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42%
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33%
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31%
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83%
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47%
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16%
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16%
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21% I
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35%
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43%
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I40
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23%
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42%
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28% I
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15% I
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31%
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2300KELAN-2
1.017
2350COL-L-2
2570BIYAG-2
1.014
1.015
2305KERAWALA_2
1.020
2580KOTUG-2
1.014
188.
9
68.6
188
.6
141
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N/A
49% I
3305KERA-3
1.010
1270COL-M-1
1.006
1350COL-L1
1.007
155
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43.
7
155.
9
39.3
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1.005
118.
4
16.0
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17.
7
1260COL-N-1
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1550KOLON-1
1.0041760COL_F-1
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66.4
61.
3
66.
3
58.0
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93.
1
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4
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3
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1
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29.3
1950COL-P-1
56%
I53
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40% I
37% I
46% I4270
COL-M-11
1.044
4260COL-N-11
1.037
1.019
33.1
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61%
I
1110N-LAX-1
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1
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40.2
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3
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1
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3
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6
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4
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8
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5
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112
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0
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7
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7
1130POLPI-1
1210BOWAT-1
1680KURUN-1
2230VICTO-2
2240RANDE-2
2250RANTE-2
3250RANTE-3
3620BADUL-3
1.000
3630BALAN-3
0.997
1790RATMA-1
1.004
3670MATARA-3
0.985
3120WIMAL-3
0.994
0.987
3520NUWAR-3
1520NUWAR-1
1620BADUL-1
0.948
3540ORUWA-3
1670MATARA-1
0.989
1660EMBIL-1
0.985
0.982
3200UKUWE-3
1510SITHA-1
1630BALAN-1
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
0.988
1705NEWANU-1
1700ANURA-1
1.000
1850PANAD-1
0.974
1560PANNI-1
1.010
0.953
3790RATMA-3A
0.984
0.951
3400HAMBA-33
3660EMBIL-3
0.999
3850PANAD-3
3160INGIN-3
1.006
3701ANURA-3B
0.997
1710TRINC-1
0.966
1870K_NIYA-1
1830VEYAN-1
3690HABAR-3
1740RATNAP-1
3740RATNAP-3
1.003
3565PANNI-T
3870K-NIYA-3
0.986
3840JPURA_3
0.959
0.869
4435COL_A_11
3890DEHIW_3
3800MATUG-3
0.992 4650GALLE-SV
1.002
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0.998
13.
8
11.
0
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45.3
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9
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8
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7
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2
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3
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0
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9
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9
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6
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6
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0
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8
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4
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8
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4
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8
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5
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7
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5
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0.0
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69.5
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1.4
0.6
1.4
0.7
45.9 6.0
47.
7
8.7
28.0
64.8
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51.3
0.9
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130
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0.6
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0
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157.
0
37.7
156
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4
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3
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9
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8
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1
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9
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5
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1
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3
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2
116
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6
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4
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1
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1
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1
42.8
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1
1
95.1
56.1
1
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1
30.1 7.5
1
10.7 2.7
1
1
104.
0
1
48.2
SW
2
61.0
1
29.1 7.3
1
20.4
1
42.2
19.4 4.9
1
82.8
40.1
1 53
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1
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31.3
1
71.8
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1
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20.
3
1
74.5
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1
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1
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2 2
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3
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2
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3
109.
0
4
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1
73.8
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19.
3
1
45.9
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1
60.2
21.8
1
5.9
SW
9.9
1
28.6
1
1
25.6
3
72.0
1
50.4
24.4
1
88.9
48.0
1
27.5
1
19.7
13.7
1
77.4
45.9
1
54.4
3
115.
0
71.3
H
1
75.2
1
69.7
1
26.9
2 1
20.0
12.4
H
1
45.1
19.2
1
53.8
15.7
1
38.7
18.7
1
50.1
1
29.4
1
64.8
1
40.9
13.4
19.
9
5.1
0.996
19.2
12.6
6.0
0.994
0.982
2.5
46.2
6.3
103.5
0.972
67.6
H
3560PANNI-3
1590SAPUGA-1
32.1
3830VEYAN-33
1250RANTE-1
6.7
38.
7
6.7
6.9
0.0
0.0
50.
4
50.4
2.5
3302KELAN-3B
15.9
SW
18.
7
15.
0
0.3
15.1
2.3
19.7
2.7
1.5
51.9
7.7
1
18.6
3.8
12.9
1
22.1
13.7
H
1
20.1
12.5
H
4.2
1
11.1
6.9H
1
15.7
9.7H
1
15.2
9.4H
1
8.5
5.3H
1
10.7
0.993
3880AMBALA
0.997
14.4
2.6
16.5
8.6
16.
5
10.
7
1 14
.4
7.0
0.989
3900PANNAL
0.993
1
73.0
37.4
73.0
13.0
1
42.3
20.5
0.980
0.982
1
SW
9.6
9.9
0.985
10.
3
6.2
7.6
1.5
0.998
0.0
0.0
0.0
3710TRINC-3
0.0
SW
29.
9
SW
3300KELAN-33
0.976
1
113.
0
2
70.0
H
0.0
5.5
0.998
1720KILINOCH-1
7.7
5.1
1.3
2.1
5.1
5.1
1
32.3
31.4
38.0 5.8
1
6.0 2
3.7
75.2
74.7
32.0
1
70.6
99.
4
97.8
97.8
77.4
96.9
22.2
12.
3
22.
0
9.7
22.2
12.
3
22.
0
1
44.1
9.0
SW
14.4
2.0
6.2
1.8
2.1
1
5.5
2.4
25.7
17.
5
25.
6
17.1
25.7
17.
5
25.
6
17.1
0.4
0.0
0.0
0.0
12.
1
18.4 1.6
3.8
1.6
3.7
11.
8
59.5
67.2
34.7
24.8
11.1
7.4
0.999
SW
23.5
33.
7
27.5
1430COL_I_1
53.3
51.9
15.9
4430COL_I_11
0.992
2560PANNI-2
52.
6
38.
7
130.
6
13.5
3510SITHA-33
23.1
29.0
4.2
1
29.0
15.7
0.984
25.
4
44.6
H
0.996
1440KATUNA-1
13.6
47.1
1
25.1
9.3
1.8
9.3
2.8
11.
3
2.8
11.0
32.
2
4.3
32.3
2.8
2.8
11.0
0.990
11.
3
93.6
34.3
93.
1
32.
6
19.
3
50.8
19.6
1450MAHO-1
3450MAHO-3 9.
7
1
25.7
25.8
1580KOTUG-1
0.990
15.0 6.4
7.7
5.3
1
15.0
5.5
0.994
1470VAUNAT-1
1.000
8.7
1
11.6
2.5
0.991
1
28.5
12.1
10.5
9.8
4.6
9.8
5.2
9.8
4.6
5.2
3460POLON-3
109.
3
3.8
2.6
0.999
42.3
7.8
0.974
111.
1
0.993
7.8
0.984
3490PALLEK-3
0.993
12.7
13.
3
1
12.7
5.8
6.4
7.5
6.4
6.7
6.4
6.4
6.7
SW
19.
7
1320NAULA-1
3320NAULA-3 2.
7
1
2.5
0.979
3330MONARA-312
.6
1
12.6
3.2
4.4
1340BELIAT-1
3340BELIAT-3
24.0
1
24.0
7.0
15.6
8.6
13.9
8.5
15.
1
8.5
15.
6 1
5.5
7.6
2.8
35.9
0.984
120
.6
2.6
52.
6
SW
40.3
1
18.4
84.
7
69.
5
100.
0H
67.6
H
10.
0
1820ATURU-1
0.978
0.966
8.6
SW
0.957
3551KOLON-3B
0.999
2.3
1
1.4H
1.000
3470VAUNAT-3
1.017
3780VALACH_3
70.0
H11
3.0
67.0
2225UPPER-KOTH-2
108.
3
3.4
108
.0
2.3
108.
3
3.4
108
.0
2.3
1
75.0
36.
3L
2
1
99.5
1980COL_B_1
0.912
10.0
11.
8
49.6
49.
6
53.
4
70.6
100.
4
78.3
65.2
1
78.3
42.8
28.8
SW
1
SW
15.
230
.8 3
0.8
1.4
15.4
1.2
15.
4
1.5
14.
2
125.
5
132.
1
125
.1
125.
5
132.
1
125
.1
132
.2
3.5
19.
8
38.2
28.6
1.2
9.7
1530THULH-1
0.970
1655WELI-1
2.1
39.5 8.5
39.
3
9.0
39.5 8.5
39.
3
9.0
24.9
11.6
24.
8
11.
8
24.9
11.6
24.
8
11.
8
3655WELI-3
1.001
28.8
5.2
28.
8
6.6
SW
1
28.8
8.4
0.3
15.
0
38.0
3440KATUNA-3
47.1
2.7
0.977
0.990
1815N_CHILAW-1
1.004
9.7
9.3
3.4
9.3
82.
3
9.6
4.1
0.999
1.000
29.
0
2830VEYAN-2
8.3
40.9
320.
7
11.
8
316
.3
43.4
320.
7
11.
8
316
.3
43.4
209.
5
69.
5
207
.7
74.7
209.
5
69.
5
207
.7
135
.7
67.5
136.
0
68.
5
135
.7
67.5
136.
0
37.6
89.3
50.
4
88.
4
89.3
50.
4
106
.7
26.1
106
.710
6.7
21.
226
.1 6
5.2
65.2
65.
2
8.4
65.2
0.992
112.
1
111
.8
30.
3
31.5
1960MAHIYA
3960MAHIYA-3
26.2
41.2
24.
2
41.
2
1.3
3590SAPUG-3A
2.0
59.5
1410KUKULE-1
125
.8
55.
1
126.
2
52.
7
35.
6
52.8
1500KOSGA-1
52.
7
52.8
35.8
35.8
6.6H
1970PADUKKA-1
77.
1
39.
3
40.2
1120WIMAL-1
1.5
15.
4
16.6
30.8
28.
8
26.
1
37.6
1.019
7.6
1690HABAR-1
9.8
103
.2 7.2
103.
2
1.5
103
.2 7.2
103.
2
1.5
0.995
88.
4
2705NEWANU-2
146
.7
23.4
150.
5
21.
0
146
.7
23.4
150.
5
21.
0
2
250.
0
25.4
R
0.987
424
.2
10.5
430.
6
46.5
1.008
14.8
7.4
22.
2
7.3
14.8
7.4
22.
2
3581KOTU_NEW_3
68.
5
5.7
39.
1
1800MATUG-1
15.
0
35.
6
3820ATURU-3
2220KOTMA-2
41.5
1810PUTTA-1
5.1
2.1
19.8
2.6
132
.2
0.950
3705NEWANU-3
0.953
0.990
32.
7
6.1
32.8
5.3
32.
7
6.1
32.8
5.3
0.980
52.9
3
54.0
120.
0H
0.995
1.008
33.7
125
.8
55.
1
126.
2
55.2
1.020
60.2
8.0
12.5
0.0
0.0
7.1
34.5 9.7
42.5
15.5
H
3150AMPA-3
1150AMPA-1
30.
0
5.9
2.4
5.9
4.1
1
3770KIRIB-3
4190COL_K_11
1
2.1
1.8
2.1
4.5
1
3.7
1.002
3550KOLON-3A
12.6
50.9
12.
1
1330MONARA-1
12.9
24.6
16.
3
28.
1
13.1
28.5
15.
8
6.4
0.0
0.0
0.0
0.0
6.5
14.
7
6.4
12.0
19.
1
10.9
19.4
12.
5
6.3
1.000
97.
1
1.3
SW
19.
7
SW
55.8
12.0
32.5
0.996
0.993
0.987
424
.2
10.5
430.
6
46.5
1900PNNALA
82.
8
1.050
1725TRINC-PS
1.001
13.6
28.5
0.2
69.4
1.8
68.
8
0.2
69.4
68.
8
44.8
11.
3
10.6
44.8
11.
3
43.
5
10.6
11.
9
2650GALLE-2
55.2
181.
2
20.
0
180
.7
20.1
181.
2
180
.7
20.1
70.
0
41.
7
70.1
38.9
70.1
38.9
1.038
1
22.3
8.8
2135NEW-POLP 2
97.5
3.7
96.
7
12.
6
145
.1
18.7
145.
5
20.
5
145
.1
18.7
145.
5
20.
5
97.5
96.
7
12.
6 3
.7
28.5
28.
4
38.
3
28.5
30.6
28.
4
38.
3
0.982
20.
0
0.971
177.
8
2.8
174
.8
1.3
177.
8
2.8
174
.8
1.3
1135NEW-POLP-1
21.2
19.
0
46.3
19.
0
46.3
19.1
46.
5
46.6
19.1
45.
6
1990KIRIND-1
3990KIRIND-3
1.006
1.006
26.8
1
21.2
9.0
2990KIRIND-2
1.010
97.8
19.3
26.
0
88.
6
88.7
14.
7
11.4
97.
5
97.8
19.3
97.
5
26.
0
88.
6
11.4
88.7
14.
7
130
.2
1.0
130.
5
2.9
130
.2
1.0
130.
5
2.9
59.0
23.5
1
2.7
1.3
19.
6
48.4
19.7
48.
3
19.
6
48.4
19.7
21.3
6.2
21.
3
6.5
21.3
6.2
21.
3
6.5
2720TRINC-2
1.3
1691NHAB-1
0.995
30.1 8.0
8.0
30.1
8.0
1600BOLAW-1
25.6
100.
0H
43.8
162
.0
50.
5
162.
9
54.8
162
.0
50.
5
162.
9
54.8
35.9
5.5
19.
2
0.762
10.8
24.
3
6.8
3.1
6.8 0.5
6.8
3.1
6.8 0.5
5.4
2.3
5.4
1.3
2.3
5.4
1.3
1.004
10.8 2.6
1
10.8
26.5
8.8
26.6
9.3
2.1
21.5
1290KALUT-1
0.980
3290KALUT-3
0.995
28.5
13.6
1
28.5
12.1
38.7
6.7
38.7
6.6
38.
7
6.7
1
22.5
10.9
2.0
8.7
0.960
0.0
W2W1
1
0.4R
1
0.0
0.0H
1
4.1
2.5H
1
0.3
0.0L
10.0
0.0L
30.6
46.
5
19.1
0.0
0.2
0.0
2
12.5
39.
0
0.998
SW
10.1
88.9
0.974
22.0
0.994
15.0
1480KAPPAL-1
0.988
53.5
43.
5
1730CHUNNAKAM-1
3720KILINOCH_3
32.3
6.6
SW
30.
9
23.5
59.0
1160INGIN-1
35.2
23.8
11.3
5.1
11.
3
5.9
11.3
5.1
11.
3
5.9
3410KUKULE-3 _1
1.000
1
2.2
1.3H
1.010
3.0
20.
9
79.7
30.3
79.
1
28.
1
3
250.
0
25.4
R
4
250.
0
25.4
R
1
250.
0
25.4
R
0.0
1.000
0.0
0.0
W4
5.8
8.7
1 2
1.026
58.
5
9.3
8.0
22.
7
1.1
22.8
0.7
1.006
SW
19.
8
12.3
SW
SW
20.
0
SW
19.
5
SW
55.7
1100LAX-1
2815NCHILAW-2
25.0
4.8R
30.2
5.0
1.8R
D
5.0
3.1H
53.8
45.
6
0.994
1.8
5707NEWAN-D2
0.974
13.2
47.8
6.8
6.2
1.3
6.2
1.7
28.
0
SW
27.
1
SW
47.
4
SW
29.
9
SW
29.
8
SW
39.
0
SW
29.
9
SW
19.
0
SW
SW
46.
3
1.2
46.3 2.8
46.
3
1.2
46.3 2.8
33.0
SW
16.
6
46.
3
1.2
46.3 2.8
0.990
30.
1
0.0
1.3
0.0
0.0
1.3
0.0
0.0
1460POLON-1
12.
9
2.0
13.0
0.5
22.5
11.9
48.
9
16.3
51.3
14.
8
1200UKUWE-1
50.
4
4810PUTTA_G1
4811PUTTA_G2
0.989
4812PUTTA_G3
0.989
36.4
250.
0
43.9
11.
6
285
.0
43.9
285.
0
11.
6
285
.028
5.0
250
.0
1
285.
0
11.
6R
285.
0
250.
0 0.991
11.
6
SW
3970PADUKKA-3
SW
96.
4
8.4
0.994
25.
7
39.
1
30.
1
8.0
59.9
4350COL-L-110.95001.0000
1.0000
0.95001.0000
1
1
1
1
39.9
113
.7
39.
7
103.
0
38.
7
0.980
1 1
11.
6R
1.015
3730CHUNNAKAM-3
1.009
44.1
19.
4
9.7
5.41280
MANNAR-1
2.3
15.1
2.2
29.4
3240VAVUN-33
47.
8
7.32690
NHAB-2
3691NHAB-3
1780VALACH_1 7
.6
7.6
3280MANNAR
11.
6R
1490PALLEK-1
7.5
21.
4
51.
8 2
6.0
26.2
24.
2
6.7
0.0
41.
241
.2
4252RANTE-G2
25.7SW
3816PUTTA-W
2810PUTTALAM-PS
0.03810
PUTTA-33815NARAKKA-3
74.7
8.4
4.2
5.1
3860MADAM-3
1860MADAM-1
29.
6
21.
2
106.
7
15.4
83.4 3.6
3600BOLAW-3
144.
4
3910ANIYA
1910ANIYA
16.3
4251RANTE-G1
1140CANYO-1
46.6
19.1
19.
1
19.
1
3500KOSGA-3
0.997
48.
3
20.2
19.
8
3640DENIY-3
0.999
77.3
116
.0
12.
6
116.
4
11.7
30.
3 5
0.7
157.
0
173.
6
172.
0
32.5
1310SAPUG-1P
0.986
112.
1
31.5
35.
4
156.5
94.5
36.
0
41.
7
70.
0
1640DENIY-1
3301KELAN-3A
1840JPURA_1
6.6
49.7
6.0
0.983
49.5
1890DEHIW_1
1435COL_A_1
0.989
1920COL_C_1
4920COL-C-11
78.
3
1.0000
110
.4
4352COL-L2-11
4351COL-L1-11
0.983
0.987
0.971
0.957
1.000
1.000
1.000
1.000
0.974
0.981
1.023
0.962
0.9850.967
0.986
3420HORANA_3
1420HORANA_1
0.997
0.971
1.003
0.964
1400HAMBA-1
3930SURI'WEWA-1
0.997
0.965
1930SURI'WEWA-1
0.995
1940UMAOYA-1
0.995
0.999
0.988
1.002
1.015
1.000
1.019
1.016
0.998
1.002
0.994
1.0041.0001.004
1.0351.0341.030
1.020
1.0180.982
0.993
1180BROAD-1
0.982
0.982
1770KIRIB-1
1.000
3580KOTUG-3
1.057
0.974
1.018
1.008
2970PADUKKA-2
0.988
0.986
0.993
0.990
3570BIYAG-3
1.055
3530THULH-3
1.007
1535KEGA-1
3535KEGA-3
0.992
3700ANURA-3A
1240VAVUN-1
3480KAPPAL-3
0.9920.990 1880AMBALA
23.8
7.4
1650GALLE-1
23.
7
1170SAMAN-1
1.002
4980COL_B_11
1,600 sq.mm cable
1,600 sq.mm cable
8% I
8% I
10% I
10% I
10% I
10% I
34%
I
34%
I
12%
I
21%
I
21%
I
50%
I
7% I 12% I
7% I
N/A
N/A
N/A
21%
I
62%
I
170%
I
176%
I
64%
I
47%
I
46%
I
5% I
5% I
16%
I
4% I
14%
I
5% I
41%
I
24%
I
24%
I
13% I
20% I
20% I
55%
I
40%
I22
% I
84%
I
60%
I
50%
I
35%
I
N/A
16% I
16% I
N/A
7% I
7% I
8% I
8% I
57% I
61%
I
57% I
85% I
49%
I
50%
I
N/A
N/A
1% I
22% I
22% I
8% I
33%
I37
% I
33%
I37
% I
22%
I
22%
I10
4% I
79%
I
79%
I
81%
I
66%
I
12%
I
12%
I
N/A
1% I
79%
I
79%
I
2% I
2% I
50%
I
25% I 11% I
22%
I
10%
I
72%
I
69%
I
66%
I
84% I
69%
I
3% I
3% I
58%
I58
% I
N/A
58%
I58
% I
N/A
81%
I
87%
I
55%
I
10% I
10% I
54%
I
73% I
73% I72%
I
53% I
45%
I
19% I
19% I
33%
I
48%
I
48%
I
85%
I
72%
I
91%
I
57% I
60% I
76%
I17
5% I
20%
I
7% I
36%
I
44%
I
N/A
59%
I
42%
I
N/A
N/A
48%
I
31% I
31% I
66%
I
13% I
13% I
18% I
18% I
31%
I
10% I
38%
I
N/A
N/A
N/A
N/A
N/A
97%
I
91%
I
35%
I
N/A
N/A
N/A
N/A
79%
I
N/A
N/A
80%
I
N/A
94%
I
N/A
N/A
N/A
74%
I
N/A
N/A
100%
I
89%
I
100%
I
100%
I
N/A
56%
I
N/A
18% I
N/A
18% I
38% I
N/A
7% I
50%
I
34%
I 34%
I
34%
I
33%
I
33%
I
33%
I
33%
I
23%
I
9% I
9% I
79%
I
48%
I
N/A
N/A
93%
I
93%
I
35%
I
2% I
2% I
62%
I
11% I
204%
I
97%
I
11% I
11%
I
51%
I
4% I
14% I
14% I
1% I
36%
I
86%
I
4% I
5% I
15%
I
5% I
45%
I
25%
I
45%
I
12% I
52%
I
4% I
51%
I
51%
I
11%
I
11%
I
30%
I4%
I
4% I
26%
I
42%
I
41%
I
14%
I
13%
I
8% I
8% I
N/A
33%
I
28%
I
28%
I94
% I
N/A
N/A
20%
I
48% I
169%
I
49%
I
7% I
24% I
24% I
7% I
18% I
18% I
12% I
12% I
47%
I
4% I
5% I
37% I
15%
I
15%
I
22% I
22% I
37%
I
43%
I
43%
I39
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39%
I
20%
I
20%
I
14% I
14% I
44%
I
44%
I
44%
I
44%
I
53% I
47%
I
37%
I
15% I
15% I
20% I
N/A
42%
I
N/A
40%
I
N/A
42%
I40
% I
39%
I
39%
I
85%
I
28% I
6% I
6% I
15% I
15% I
37%
I61
% I
93%
I
37%
I
38%
I
5% I
5% I
37%
I
5% I
27%
I
N/A
58%
I58
% I
N/A
2% I
33%
I
20% I
24% I
13% I
15% I
13% I
N/A
17%
I
24% I
N/A
N/A
9% I
28% I
31%
I
31%
I
21%
I
21%
I
39%
I
24%
I 24%
I
11% I
11% I
35%
I
35%
I
20% I
20% I
32%
I
32%
I
13%
I
19% I
19% I
13%
I
6% I
6% I
23%
I
23%
I
11%
I
11%
I
21%
I
13% I
12%
I
13% I
12%
I
17%
I
17%
I
27% I
42%
I35
% I
23%
I
23%
I
22% I
22% I
23%
I
23%
I
79%
I
79% I
3% I
3% I
4% I
4% I
35%
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14% I 11% I
13%
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10%
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51%
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18%
I 18%
I
N/A
N/A
N/A
28%
I
N/A
34%
I
25%
I
85%
I
39%
I
N/A
N/A
N/A
35%
I
27% I
42%
I11% I
10% I
10% I
26%
I31
% I
38% I
85%
I
85%
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85%
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N/A
N/A
N/A
N/A
45% I
10% I
N/A
N/A
N/A
N/A
87%
I90
% I
N/A
100%
I
21%
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37%
I33
% I
22% I
31%
I
31%
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31%
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N/A
1% I
1% I
N/A
N/A
N/A
13%
I
N/A
42%
I
40%
I
70%
I
80%
I
80%
I81
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81%
I
71%
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N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
54%
I
N/A
N/A
47%
I
37% I
31%
I
69%
I
2300KELAN-2
1.017
2350COL-L-2
2570BIYAG-2
1.010
1.000
2305KERAWALA_2
1.032
2580KOTUG-2
1.016
N/A
N/A
3305KERA-3
1.022
1270COL-M-1
1.000
1350COL-L1
1.000
1750COL_E-1
1260COL-N-1
1.000
1550KOLON-1
0.9591760COL_F-1
0.955
1.000
1950COL-P-1
1300KELAN-1
0.959
100.
1
102.
2
99.
7
111
.6
4.7
5.4
4.7
0.6
0.955
1190COL_K_1
1.000
92.6
99.8
92.
2
110
.3
N/A
N/A
N/A
N/A
N/A
131%
I
13%
I
125% I
4270COL-M-11
1.000
4260COL-N-11
1.000
1.000
4950COL-P-11
4760COL_F-11
0.848
0.839
4750COL_E-11
N/A
11.6
35.9
13.
1
34.
5
11.6
35.9
13.
1
34.
5
1.8
49.8
1.5
49.
7
0.4R4.
0
0.0
0.0
19.5
115.
8
0.0L6.
0
12.2
29.9
12.
4
29.
8
3.3
17.0
3.3
17.
0
21.1
4.1
19.5
4.2
17.
8
130
.2
21.8
131.
3
1.4
1.6
30.2
2.3
28.
5
2.1
28.6
2.3
2.1
28.6
12.
9
36.8
11.9
35.
9
12.
9
36.8
11.9
2240RANDE-2
2250RANTE-2
3630BALAN-3
1.031
4760COL_F-11
0.986
3520NUWAR-3
1520NUWAR-1
0.996
3540ORUWA-3
1540ORUWA-1
1850PANAD-1
0.999
1.037
3790RATMA-3A
1.006
3850PANAD-3
3160INGIN-3
0.996
1830VEYAN-1
1.024
3565PANNI-T
1.029
3840JPURA_3
0.993
4435COL_A_11
3890DEHIW_3
4650GALLE-SV
1.032
0.0
4.6
0.0
4.9
0.0
4.6
0.0
4.9
9.7
22.8
23.
1
9.7
9.8
23.
1
7.4
19.8
7.4
19.8
89.9
22.2
86.
7
16.
889
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6.7
16.
8
15.1
7.0
15.
0
97.8
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9
93.
8
20.8
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93.
8
20.8
11.
4
1.9
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3
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41.
0
25.0
27.
0
4.1
0.0 0.0
27.0
8.6
57.0
31.3
26.3
48.0 8.5
85.0
10.8
4.2
19.5
17.
0
3.3
16.9
7.6
16.
8
6.2
13.1
19.
2
19.9
30.
5
5.7
30.8
6.7
5.7
30.8
24.4
7.1
24.
0
5.6
29.
9
15.0
29.
9
15.0
13.1
128.
5
25.6
34.
2
64.0
14.8
4.2
41.0
32.0
27.0
14.
6
1.8
14.6
0.3
14.
6
1.8
14.6
0.3
0.0
20.
5
20.6 5.0
20.
5
6.3
20.6 5.0
80.
2
80.3
6.6
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11.
8
68.1 5.2
1.4
0.0
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115
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9
20.8
115
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9
29.
0
16.
2
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0
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258
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37.
6
31.
3
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13.0
28.2
28.
4
28.
1
28.4
28.2
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4
28.
1
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24.
9
40.0
39.
5
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3.8
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0.4
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0.6
59.0
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92.
4
16.
229
.760
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.811
5.8
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35.
0
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7
35.5
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0
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7
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9
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9
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6
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0
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9
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7
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0
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9
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9
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6
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8
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8
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1
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1
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27.0
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1
31.3
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1
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0
1
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SW
2
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1
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1
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21.
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7
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41.5
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2 3
67.0
2
60.0
37.2
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25.0
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2
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2
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3
109.
0
4
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1
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20.
7
1
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1
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1
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SW
11.
0
1
23.0
1
1
13.1
3
72.0
1
57.0
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1
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1
1
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1
59.0
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1
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3
115.
0
0.0L
1
23.6
1
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1
50.0
2
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1
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H
1
67.0
29.0
1
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22.0
1
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25.0
1
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1
38.0
1
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1
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7
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8
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7
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1
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1
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1
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1
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1.015
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1
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1
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1
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1
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32.
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1.008
1
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0
2
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1720KILINOCH-1
12.0
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011
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2
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4
5.237
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5
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1
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1
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058
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34.0 6.7
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9
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9
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6
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0
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4430COL_I_11
1.007
2560PANNI-2
12.
1
29.
5
115.
8
2.9
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0.988
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3
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239
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1450MAHO-1
3450MAHO-3 10
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26.0
26.1
1580KOTUG-1
17.0 7.1
9.9
4.1
17.0
6.0
1470VAUNAT-1
0.993
5.4
12.0
1.4
0.961
39.0
16.0
8.3
15.0
3.6
15.
0
4.2
15.0
3.6
4.2
25.6
1.5
0.5
62.0
1.9
22.0
15.0
1.012
3490PALLEK-3
1.046
21.0
11.
0
21.0
10.0
10.5
6.4
10.
5
5.5
10.5
10.
5
5.5
14.
0
5.0
5.0
3330MONARA-319
.019
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5.0
6.3
1340BELIAT-1
3340BELIAT-3
36.0
36.0
10.0
39.6
3.1
7.2
3.2
8.5
3.2
9.0
39.
2
3.1
1.4
27.5
0.999
0.5
6.3
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1
29.0
1
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31.
3
37.
6
20.2
R
38.9
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10.
1
1.7
SW
1.020
2.0
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3470VAUNAT-3
1.004
3780VALACH_3
61.0
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113.
0
41.5
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52.8
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7
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52.
7
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1
75.0
36.
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2
20.0
86.5
1980COL_B_1
0.998
9.8
11.
8
47.
3
47.3
0.4
22.5
17.4
16.7
12.3
16.7
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64.0
39.0
39.
0
4.9
19.5
3.4
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5
3.6
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1
127.
5
13.3
127
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127.
5
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127
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15.
2
3.9
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9
58.0
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3655WELI-3
1.000
7.8
69.
7
29.0
3440KATUNA-3
34.0
0.8
0.985
1815N_CHILAW-1
1.004
10.
6
15.0
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0
30.
0
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5
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48.0
234.
2
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8
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7
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3
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3
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3
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374
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32.
3
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5.1
1960MAHIYA
3960MAHIYA-3
21.3
29.0
20.
2
29.
0
3.0
62.0
114
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12.
2
114.
5
18.
7
7.8
18.7
18.
7
18.7
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5.6H
1970PADUKKA-1
49.
7
1.5
1.8
3.6
19.
5
21.0
39.0
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0
10.
4
12.1
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0
1.000
190
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1.010
3581KOTU_NEW_3
31.
7
35.
9
1.2
7.8
3820ATURU-3
29.0
41.
211
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20.0
3.0
15.
2
40.0
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2300KELAN-2
1.030
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2570BIYAG-2
1.027
66.6
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3305KERA-3
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1.029
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1.014
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0.984
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1600BOLAW-1
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9
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9
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1900PNNALA
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0.984
1680KURUN-1
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1440KATUNA-1
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0
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9
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0.991 1880AMBALA 1650
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9
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18%
I11
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11% I
N/A N/A
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N/A
N/A
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I
86%
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24% I
N/A
N/A
85%
I11
% I
11%
I
N/A
N/A
48%
I
48%
I
12% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
88%
I
27% I
19%
I
N/A
N/A
2% I
12% I
14% I
14% I
N/A N
/A
4270COL-M-11
1.004
4260COL-N-11
0.999
4750COL_E-11
1.014
4810PUTTA_G1
0.979
11.6
36.0
13.
1
34.
5
11.6
36.0
13.
1
34.
5
1.6
45.1
1.2
45.
0
1.9R4.
0
0.0
0.0
20.1
118.
0
0.0L6.
0
12.3
29.4
12.
4
29.
4
3.3
17.0
3.3
17.
0
20.6
0.3
19.0
0.1
18.
2
133
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22.5
134.
4
2.0
2.3
31.4
2.4
28.
5
2.2
28.6
2.4
2.2
28.6
13.
4
39.0
12.8
37.
9
13.
4
39.0
12.8
2240RANDE-2
2250RANTE-2
3630BALAN-3
1.027
4760COL_F-11
0.986
3520NUWAR-3
1520NUWAR-1
0.996
3540ORUWA-3
1540ORUWA-1
1850PANAD-1
0.998
1.036
3790RATMA-3A
1.006
3850PANAD-3
3160INGIN-3
0.995
1830VEYAN-1
1.024
3565PANNI-T
1.026
3840JPURA_3
0.993
4435COL_A_11
3890DEHIW_3
4650GALLE-SV
1.029
0.0
4.6
0.0
4.9
0.0
4.6
0.0
4.9
5.9
23.6
24.
0
5.9
6.0
24.
0
3.7
20.6
3.7
20.6
88.6
22.1
85.
4
16.
888
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5.4
16.
8
18.9
6.9
18.
8
94.6
15.
1
90.
8
21.5
94.6
90.
8
21.5
11.
0
7.0
38.
6
7.0
35.3
67.0
40.
3
25.0
27.
0
4.2
0.0 0.0
27.0
7.2
57.0
31.3
26.3
48.0
11.4
85.0
10.9
0.1
19.0
17.
0
3.3
21.2
7.5
21.
0
6.2
17.5
18.
5
20.1
30.
5
5.5
30.8
6.4
5.5
30.8
23.0
7.1
22.
7
5.5
28.
6
15.1
28.
6
15.1
13.1
131.
2
26.1
34.
6
64.0
14.8
4.2
41.0
32.0
27.0
10.
1
0.8
10.1
0.8
10.
1
0.8
10.1
0.8
0.0
20.
5
20.6 5.0
20.
5
6.3
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76.
6
76.7
10.9
76. 7
16.
1
71.2 4.5
1.4
0.0
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98.3
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117
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7
21.5
117
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7
29.
0
16.
2
29.0
16.0
29.
0
16.
258
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43.
6
31.
3
20.0
13.0
28.8
28.
7
28.
8
28.7
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28.
7
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8
28.7
24.
9
40.0
39.
5
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40.0 0.6
43.6
43.6
1.5
0.4
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0.6
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13.9
94.
5
16.
329
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14.9
38.5
8.0
0.3
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118
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8.0
20.1
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53.0
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35.
0
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7
35.5
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0
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7
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6
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0
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7
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7
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3
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0
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1
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55.
0
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0.7
13.5
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8
0.7
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8
1.1
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2
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6.0
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7
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1
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9
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1
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1
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1
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61.0
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1
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27.0
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1
31.3
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1
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0
1
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2
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4
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2 3
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37.2
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25.0
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0
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11.
0
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1
1
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72.0
1
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59.0
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0
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7
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7
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1
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1
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6.0
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1
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1
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1
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1.013
21.0 0.4
50.
9
4.6
51.2
2.6
1
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1
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23.0
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1
62.0
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1.004
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1
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0
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32.
6
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1.008
1
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0
2
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1720KILINOCH-1
12.0
41.7
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211
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2
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1
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1
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5
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3
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34.0 6.7
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3
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2
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4
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0
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1.006
2560PANNI-2
12.
4
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5
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0
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0.987
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1
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8
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2
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1450MAHO-1
3450MAHO-3 10
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26.0
26.1
1580KOTUG-1
17.0 7.1
9.9
4.0
17.0
6.0
1470VAUNAT-1
0.992
5.4
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1.3
0.959
39.0
16.0
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3.6
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0
4.2
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3.6
4.2
25.6
2.7
0.6
62.0
1.9
22.0
15.0
1.009
3490PALLEK-3
1.043
21.0
10.
8
21.0
10.0
10.5
6.3
10.
5
5.4
10.5
10.
5
5.4
14.
0
5.0
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3330MONARA-319
.019
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5.0
6.3
1340BELIAT-1
3340BELIAT-3
36.0
36.0
10.0
38.5
2.1
7.2
2.1
8.6
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38.
1
3.1
1.4
27.5
0.998
4.3
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4
29.0
1
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3
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35.3
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1.003
3780VALACH_3
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76.4 3.4
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1980COL_B_1
0.997
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8
50.
2
50.2
0.4
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0
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5
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1
127.
5
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5
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127
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6
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7
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1.000
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69.
7
29.0
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34.0
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0.983
1815N_CHILAW-1
1.003
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6
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8
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4
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9
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7
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1960MAHIYA
3960MAHIYA-3
21.2
33.5
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9
33.
5
3.0
62.0
174
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8
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0
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1970PADUKKA-1
45.
0
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5
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9
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59.
0
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29.0
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6
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0
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4
44.3
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4
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8
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4190COL_K_11
3.4
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7
24.2
1990KIRIND-1
3990KIRIND-3
1.020
1.032
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2990KIRIND-2
1.031
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0
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12.
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14.0
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0
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0.989
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1.014
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5
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* 75
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3691NHAB-3
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1910ANIYA
16.0
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55.
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3640DENIY-3
45.1
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1840JPURA_1
1.6
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32.4
1435COL_A_1
4920COL-C-11
4980COL_B_11
1.0000
25.
3
28.8
25.
3
0.0
20.
2
27.
2
4352COL-L2-11
4351COL-L1-11
1.013
1.018
1.013
1.015
0.987
1.008
1.061
1190COL_K_1
1.000
1.000
1.016
0.992
1.012
1.018
0.952
3930SURI'WEWA-1
1.014
0.956
1930SURI'WEWA-1
1.004
1940UMAOYA-1
1.001
1.000
0.997
1.010
1.001
1.012
1.012
1.011
1.011
1.0401.040
1.0391.039
1.013
1.026
2970PADUKKA-2
1.010
1.0160.999
3530THULH-3
1.033
1535KEGA-1
3535KEGA-3
1.000
1,200 sq.mm cable
3705NEWANU-3
0.0
0.0
1.042
27.0
3870K-NIYA-3
3970PADUKKA-3
0.994
11.1
3570BIYAG-3
3580KOTUG-3
0.997
3830VEYAN-33
12.7
21.
2
117
.7
16.
7
5% I
5% I
18% I
18% I
15% I
15% I
67%
I
67%
I
15%
I
69%
I
69%
I
65%
I
5% I 10% I
27%
I
78%
IN
/A
78% I
42%
I
61%
I
42%
I
48%
I
56%
I
35%
I
95%
I
15% I
13%
I36
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33%
I
16%
I
19% I
64%
I
31%
I
31%
I
18%
I
14% I
14% I
26%
I
66%
I26
% I
70%
I
43%
I
71%
I
55%
I
78% I
6% I
6% I
N/A
10%
I
10%
I
10% I
10%
I
46% I
28%
I
46% I
N/A
N/A
4% I
N/A
N/A
22%
I
47% I
47% I
23%
I
79%
I90
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79%
I90
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15%
I
15%
I69
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36%
I
36%
I
81%
I
66%
I
29%
I
29%
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45%
I
39%
I
36%
I
36%
I
2% I
2% I
95%
I
49% I 18% I
43%
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16%
I
74%
I
64%
I
67%
I
65% I
N/A
4% I
4% I
47%
I47
% I
N/A
47%
I47
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N/A
62%
I
63%
I
26%
I
32% I
32% I
60%
I
30% I
30% I63%
I
12% I
90%
I
32% I
32% I
40%
I
17%
I
17%
I
62%
I
83%
I
45%
I
36% I
70% I
72%
I42
% I
51%
I
31%
I
52%
I
72%
I
103%
I
84%
I
62%
I
N/A
N/A
62%
I
13% I
13% I
76%
I
51%
I
51%
I
7% I
7% I
30%
I
N/A
75%
I
83%
I
63%
I
100%
I
87%
I
87%
I
90%
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90%
I
71%
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75%
I
63%
I
83%
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88%
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N/A
88%
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100%
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100%
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80%
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N/A
80%
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85%
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74%
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N/A
83%
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N/A
90%
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90%
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87%
I
85%
I
100%
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100%
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N/A
22% I
N/A
22% I
42% I
84%
I
31%
I
50%
I
24%
I 25%
I
19%
I
19%
I
20%
I
16%
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25%
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34%
I
23% I
23% I
72%
I
70%
I
N/A
78%
I
80%
I
80%
I
71%
I
19%
I
19%
I
47%
I
18% I
44%
I
58%
I
11% I
11%
I
76%
I
2% I
18% I
18% I
22%
I
74%
I
57%
I
6% I
17%
I12
% I
17%
I5%
I
24%
I
91%
I
13% I
59%
I
5% I
60%
I
72%
I
16%
I
16%
I
37%
I5%
I
5% I
48%
I
63%
I
63%
I
30%
I
7% I
4% I
18%
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N/A
30%
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20%
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20%
I94
% I
N/A
100%
I
42%
I
31% I
32%
I
63%
I
9% I
17% I
17% I
9% I
N/A
N/A
N/A
N/A
N/A
10% I
6% I
14% I
41%
I
41%
I
21% I
21% I
23%
I
31%
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31%
I24
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24%
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10%
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10%
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36% I
36% I
40%
I
40%
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50%
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50%
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12% I
37%
I
45%
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4% I
4% I
10% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
20% I
20% I
67%
I28
% I
38%
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45%
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55%
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15% I
13%
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24%
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19% I
14%
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N/A
47%
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N/A
2% I
20%
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10% I
8% I
17% I
18% I
17% I
N/A
20%
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36% I
39% I
39% I
17%
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N/A
N/A
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/A
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3% I
3% I
22%
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22%
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19% I
19% I
18%
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15% I
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17%
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17%
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23%
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9% I
8% I
9% I
8% I
N/A N
/A
22% I
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N/A
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N/A
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43%
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43%
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7% I
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59%
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52% I 35% I
46%
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31%
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N/A
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7% I
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100%
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80%
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22% I
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16% I
16% I
11%
I14
% I
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94%
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65% I
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/A
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100%
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I79
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47% I
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15%
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26%
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36% I
68%
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81%
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81%
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81%
I81
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81%
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31%
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31%
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23%
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26%
I26
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35%
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7% I
37%
I
55%
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N/A
N/A
37%
I
22% I
30%
I
14%
I
2300KELAN-2
1.030
2350COL-L-2
2570BIYAG-2
1.028
75.7
4.5
75.
7
28.
8
1.029
2305KERAWALA_2
1.030
2580KOTUG-2
1.026
2225UPPER-KOTH-2
1.033
1.035
2705NEWANU-2
0.988
1.3
24.0
1.0
45.
1
1.0362220KOTMA-2
2810PUTTALAM-PS
1.000
2815NCHILAW-2
1.013
1.020
1.0322135NEW-POLP 2
1.3
24.0
1.0
45.
1
2690NHAB-2
1.000
2230VICTO-2
2830VEYAN-2
17% I
12%
I
N/A
N/A
N/A
12%
I
3305KERA-3
1.000
3120WIMAL-3
1.023
3500KOSGA-3
0.998
3510SITHA-33
1.020
3200UKUWE-3
1.038
0.995
3302KELAN-3B
3400HAMBA-33
1.026
3550KOLON-3A
3551KOLON-3B
3560PANNI-3
1.014
3800MATUG-3
1.009
3590SAPUG-3A
1.004 3620BADUL-3
1.019
3650GALLE-3
3670MATARA-3
1.035
3600BOLAW-3
1.002
3660EMBIL-3
1.014
3690HABAR-3
1.047
1.029 1.030
1.017
3810PUTTA-3
3900PANNAL
0.999
3860MADAM-3
0.997
3816PUTTA-W
1.000
3250RANTE-3
1.028
3301KELAN-3A
0.995
3420HORANA_3
1.001
3680KURUN-3
1.037
3710TRINC-3
1.015
0.967
3815NARAKKA-3
1.013
3300KELAN-33
3320NAULA-3
0.981
1.035
3730CHUNNAKAM-3
1.040
2
3740RATNAP-3
1.027
3460POLON-3
1.043
3700ANURA-3A
3701ANURA-3B
1.0141.020
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1270COL-M-1
1.014
1350COL-L1
1.015
60.
0
18.
1
60.0
13.0
1750COL_E-1
1.014
35.1
4.2
35.
1
2.3
1260COL-N-1
1.014
1.0151760COL_F-1
1.014
32.
8
1.8
32.8
1.8
1120WIMAL-1
1.033
1100LAX-1
1.030
1110N-LAX-1
1.034
1630BALAN-1
1.011
1770KIRIB-1
1.009
17.
4
5.1
17.6
3.8
3.9 2.3
3.9
4.4
1530THULH-1
1.001
1820ATURU-1
1.013
1130POLPI-1
1.007
1.020
0.996
3.2
3.5
3.2
8.0
1300KELAN-1
1.016
1920COL_C_1
1.016
1.016
1
36.0
6.0L
2
36.0
6.0L
1570BIYAG-1
1.015
1400HAMBA-1
0.956
1660EMBIL-1
0.964
1.016
1510SITHA-1
1.006
1500KOSGA-1
1430COL_I_1
1.014
0.3
16.1
0.3
1870K_NIYA-1
1.012
1550KOLON-1
28.
6
1560PANNI-1
1.015
1790RATMA-1
1.012
1890DEHIW_1
1.013
1410KUKULE-1
1.016
0.983
1590SAPUGA-1
1.013
1.012
1
51.0
4.0L
25.5
2.0
25.
5
2.1
25.5
2.0
25.
5
2.1
1595ASIA-1
1620BADUL-1
1.008
1250RANTE-1
1.010
1640DENIY-1
0.981
0.959
1600BOLAW-1
1.001
1.015
1700ANURA-1
1.022
52.
4
1.2
53.7
0.5
52.
4
1.2
53.7
0.5
0.990
15.4
6.0
15.
1
1.8
1690HABAR-1
1705NEWANU-1
1.023
1240VAVUN-1
1.014
1710TRINC-1
0.955
1.000
0.999
1900PNNALA
1420HORANA_1
0.983
1680KURUN-1
1.003
1440KATUNA-1
1.004 1200UKUWE-1
1860MADAM-1
0.997
1810PUTTA-1
1.026
1180BROAD-1
1
35.0
17.
0L
34.
9
16.9
35.0
17.
0
55.
2
24.2
1135NEW-POLP-1
1320NAULA-1
0.999
4.5
2.8
4.5
4.9
1691NHAB-1
1.0001780VALACH_1
1460POLON-1
0.989
26.
9
3.1
27.1
1.6
1800MATUG-1
0.989 1880AMBALA 1650
GALLE-10.973
30.3
11.0
30.
1
11.
8
30.3
11.0
30.
1
11.
8
1655WELI-1
1.0001670MATARA-1
1.026
1310SAPUG-1P
1730CHUNNAKAM-1
1.037
1170SAMAN-1
1740RATNAP-1
1.011
1210BOWAT-1
1140CANYO-11.043
1.034
31.0
16.8
30.
6
17.
6
28.4
13.0
28.
1
13.
7
22%
I16
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15% I
18% I 6% I
5% I
N/A
N/A
86%
I
86%
I
23% I
N/A
N/A
85%
I11
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11%
I
N/A
N/A
53%
I
53%
I
12% I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N
/A
N/A
N/A
N/A
88%
I
27% I
23%
I
N/A
N/A
4% I
12% I
15% I
15% I
N/A N
/A
35% I
31%
I
4270COL-M-11
1.004
4260COL-N-11
0.999
4750COL_E-11
1.014
4810PUTTA_G1
0.980
1110N-LAX-1
30.
8
SW
12.4
88.5
11.
6
88.
2
3.9H6.
3
2.5
0.0
48.0
126.
0
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47.8
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9
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7
2.4
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3
8.5
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0.8
27.
9
103
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30.4
104.
2
11.
912
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70.6
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1
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15.
9
8.7
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8.9
15.
9
1210BOWAT-1
1680KURUN-1
2230VICTO-2
2240RANDE-2
2250RANTE-2
3250RANTE-3
3620BADUL-3
1.005
3630BALAN-3
1.011
1790RATMA-1
4760COL_F-11
1.003
4750COL_E-11
1.018
1.013
3670MATARA-3
1.016
3120WIMAL-3
1.007
1.007
3520NUWAR-3
1520NUWAR-1
1620BADUL-1
0.978
3540ORUWA-3
1670MATARA-1
0.980
1660EMBIL-1
1.006
3200UKUWE-3
1510SITHA-1
1630BALAN-1
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
1.007
1705NEWANU-1
1700ANURA-1
1.004
1850PANAD-1
0.987
1560PANNI-1
1.005
1.001
3790RATMA-3A
1.007
1.001
3400HAMBA-33
3660EMBIL-3
1.017
3850PANAD-3
3160INGIN-3
1.005
3701ANURA-3B
1.005
1710TRINC-1
1.005
1870K_NIYA-1
1830VEYAN-1
3690HABAR-3
1740RATNAP-1
3740RATNAP-3
0.989
3565PANNI-T
3870K-NIYA-3
1.004
3840JPURA_3
0.999
1.003
4435COL_A_11
3890DEHIW_3
3800MATUG-3
1.005 4650GALLE-SV
1.049
3650GALLE-3
1.008
2.2
6.7
2.2
6.4
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6.7
2.2
6.4
8.5
18.6
19.
0
8.5
8.5
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0
9.5
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101.
0
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0
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0 9
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0
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6
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6
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6
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27.
0
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3
2.4
0.7
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6.7
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4
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42.1
2.2
2.3
42.1
19.4
23.
1
18.
9
21.9
41.
0
20.3
41.
0
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27.5
108.
8
36.3
34.
2
81.9
27.0
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30.
0
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30.
0
5.5
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26.
2
26.3 7.8
26.
2
8.8
26.3 7.8
82.
1
82.3
45.
9
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41.3
112.
0
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53.
8
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14.
7
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75.
9
3.9
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3.5
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9
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36.
0
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9
36.1
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0
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972
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59.
4
11.0
30.0
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2.9
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0
2.8
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2.9
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0
2.8
24.
8
40.0
39.
5
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40.0 2.9
59.4
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1.4
0.6
1.4
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81.9
26.9
73.
2
23.
538
.781
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28.9
51.8 9
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6.2
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126
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6.0
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125
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49.4
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72.7
27.5
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35.
7
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35.
7
1.2
77.4
13.6
89.8
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6
6.4
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2
33.5
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36.
0
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76.
1
39.
7
76.
1
39.
7
54.
4
40.6
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52.7
105.
2
21.
2
131.
4
10.
8
52.9
15.8
49.9
77.8
21.7
0.0
19.
8
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67.
1
24.9
39.7
7.8
7.0
39.7
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3.4
24.
5
2.4
24.5
2.4
24.
5
2.4
24.5
2.4
18.
2
15.3
18.2
17.
6
15.3
18.2
17.
6
115
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0.7
115.
7
1.4
24.0
1
40.0
5.0
L
1
37.5
1
20.0
12.4
H
1
37.2
H
1
11.2
1
10.9
1
82.8
37.7
1
27.0
2.4R
27.0
2.4R
1
46.5
28.8
1
45.4
22.0
1
56.1
18.4
1
65.3
1
52.4
13.1
1
43.7
10.9
1
1
104.
0
1
77.4
SW
2
61.0
1
52.4
13.1
1
40.7
1
83.5
48.5
12.2
1
72.0
34.9
1
45.4
1
80.1
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1
71.8
61.4
1
6.1
SW
20.
2
1
156.
9
48.1
R
1
19.0
1
59.9
19.7
40.0
2
37.5
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2
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R
3
67.0
2
60.0
37.2
H
25.0
15.5
H
2
25.0
15.5
H
0.0
25.0
1
1
60.0
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H
2
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19.0
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0.0
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3
109.
0
4
54.0
1
81.9
39.7
SW
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3
1
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1
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10.
1
1
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1
1
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3
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7
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0
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1
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1
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1
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1
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35.3
1
81.6
23.8
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30.9
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57.8
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81.0
1
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20.
3
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H
11.7
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41.3
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103.5
1.007
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3560PANNI-3
35.0
1590SAPUGA-1
32.1
3830VEYAN-33
1250RANTE-1
5.7
38.
7
5.7
0.2
0.0
0.0
77.
4
77.4
13.6
3302KELAN-3B
17.0
7.7R
SW
20.
2
49.
0
4.3
49.6
4.4
38.5
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2.7
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1
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11.7
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1
22.0
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1
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H
5.2
1
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1
15.7
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1
15.2
9.4H
1
8.5
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1
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0.975
3880AMBALA
1.008
27.0 4.1
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21.5
2.0
23.
5
1
27.0
13.1
0.999
3900PANNAL
1.011
1
81.0
41.5
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1
83.7
40.5
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1.012
1
SW
10.
2
10.
2
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0
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0.2
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30.
8
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3300KELAN-33
1.011
1
113.
0
2
70.0
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22.
0
1.1
0.988
1720KILINOCH-1
17.7
9.7
4.4
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9.7
9.7
1
64.7
39.2
38.0 4.0
1
22.3 1
5.6
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1
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7.6
77.4
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1
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1
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1
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1
1
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SW
36.7 4.9
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1
11.0
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3
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3
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32.6
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4
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92.9
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7
92.
8
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6
1.000
SW
31.2
33.
7
16.1
1430COL_I_1
45.4
51.9
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4430COL_I_11
1.011
2560PANNI-2
35.
0
38.
7
125.
9
11.4
3510SITHA-33
27.8
31.7
2.4
1
31.7
17.1
1.009
1.1
16.0
L
1.013
1440KATUNA-1
17.7
47.1
1
24.1
11.0
4.4
11.
0
35.
5
17.
4
35.6
17.3
12.9
6.2
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9
35.
535
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1.007
17.
4
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44.
2
30.
6
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8.6
1450MAHO-1
3450MAHO-3 14
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1
37.1
37.4
1580KOTUG-1
0.984
22.6
10.2
15.2
3.0
1
22.6
8.2
1.003
1470VAUNAT-1
1.000
3.3
1
19.7
5.5
1.008
1
58.0
24.7
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11.5
25.
0
12.
025
.1
11.5
12.
0
3460POLON-3
17.7
7.1
13.
6
1.012
83.7
14.6
1.012
38.5
1.003
17.9
0.986
3490PALLEK-3
1.007
24.6
7.9
1
24.6
11.2
12.3
4.8
12.
3
4.0
12.3
12.
3
4.0
SW
20.
3
6.7
1
5.6
3330MONARA-324
.3
1
24.3
6.1
8.8
1340BELIAT-1
3340BELIAT-3
48.0
1
48.0
14.0
43.3
5.4
22.0
5.2
23.
0
5.2
23.
4 4
2.8
5.5
4.8
35.9
1.013
53.
8
0.4
43.
8
SW
40.3
1
0.0
0.0H
19.6
11.0
59.
4
33.5
H
64.5
H
10.
2
1.007
1.003
6.1
SW
0.999
3551KOLON-3B
0.989
2.3
1
1.4H
1.005
3470VAUNAT-3
1.001
3780VALACH_3
70.0
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3.0
67.0
23.0
R
2225UPPER-KOTH-2
109.
5
4.1
109
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109.
5
4.1
109
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1
75.0
46.5
H
2
75.0
46.5
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1
30.0
102.
9
1980COL_B_1
1.017
2.4
0.5
35.
0
35.0
24.
2
27.0
21.6
40.8
23.7
1
40.8
25.3
75.9
SW
1
SW
15.
350
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7.9
25.
1
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1.009
10.
6
124.
1
87.9
123
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124.
1
87.9
123
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88.
8
5.9
20.
0
65.4
45.9
7.9
2.2
0.963
1655WELI-1
16.9
59.6
29.6
59.
1
28.
4
59.6
29.6
59.
1
28.
4
35.1
27.4
35.
0
27.
4
35.1
27.4
35.
0
27.
4
3655WELI-3
1.018
48.0 2.0
48.
0
1.5
SW
1
48.0
14.0
4.3
49.
0
38.0
3440KATUNA-3
47.1
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0.966
0.987
1815N_CHILAW-1
1.014
14.
9
11.0
6.0
11.
0
70.
0
11.
0
6.7
0.985
1.000
40.
1
2830VEYAN-2
14.4
57.0
305.
0
16.8
300
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10.9
305.
0
16.8
300
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10.9
184.
2
52.
2
182
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54.6
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2
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2
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103
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0
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0
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0
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5
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5
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3
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8
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2 9
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9
28.
8
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0.985
37.3
37.
2
0.8
0.9
1960MAHIYA
3960MAHIYA-3
2.6
26.2 3.2
26.
2
3.9
3590SAPUG-3A
4.4
79.1
1410KUKULE-1
98.
7
21.
3
98.9
45.
9
2.0
45.9
1500KOSGA-1
45.
9
45.9
2.5
2.5
6.6H
1970PADUKKA-1
88.
2
11.
6
12.4
1120WIMAL-1
8.1
25.
1
27.1
50.2
75.
8
15.
0
1300KELAN-1
15.4
1.000
17.1
1690HABAR-1
25.
0
124
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53.
0
124.
4
62.2
120
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120.
4
3.4
1.002
121
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2705NEWANU-2
92.
6
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94.3
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5
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6
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5
2
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0
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1.003
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5
390.
5
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6
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7
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6
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7
3581KOTU_NEW_3
45.
0
8.7
38.
5
1800MATUG-1
15.
5
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3820ATURU-3
2220KOTMA-2
36.1
1810PUTTA-1
9.71.2
30.0
3.9
88.
8
1.000
3705NEWANU-3
1.001
0.97340
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55.0
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3
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1.004
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7
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3
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8
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59.7
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3150AMPA-3
1150AMPA-1
30.
0
19.3
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4190COL_K_11
1
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5.6
1
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3550KOLON-3A
1.3
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1330MONARA-1
3.7
47.2
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52.
6
2.3
53.7
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0
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313
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1
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1
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2
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385
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5
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5
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1900PNNALA
70.
3
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8
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5
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8
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0
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5
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5
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1
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134.
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3
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1600BOLAW-1
27.5
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0.982
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3720KILINOCH_3
64.7
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318.6
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2815NCHILAW-2
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1780VALACH_1 1
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19.9
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1140CANYO-1
36.1
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727
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3301KELAN-3A
1840JPURA_1
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1435COL_A_1
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4920COL-C-11
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1.0000
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0
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0.0
110
.0
27.
6
19.
2
4352COL-L2-11
4351COL-L1-11
1.004
1.009
1.000
0.999
0.994
1.012
1.181
1190COL_K_1
1.005
1.021
1.002
1.006
1.005
0.999
1.0060.971
1.008
3420HORANA_3
1420HORANA_1
1.018
0.956
1.011
0.952
1400HAMBA-1
3930SURI'WEWA-1
1.018
0.954
1930SURI'WEWA-1
1.000
1940UMAOYA-1
1.001
0.985
1.004
1.002
0.990
1.000
0.992
0.986
1.003
1.006
1.006
1.0201.0141.020
1.0331.0331.030
1.020
1.017
1180BROAD-1
0.961
0.978
1770KIRIB-1
1.011
3580KOTUG-3
1.018
1.000
1.007
0.996
2970PADUKKA-2
1.008
1.014
1.005
1.0001.008
3535KEGA-3
0.990
1,200 sq.mm cable
3700ANURA-3A
1240VAVUN-1
3480KAPPAL-3
0.9890.988 1880AMBALA
15.7
23.
6
1650GALLE-1
15.
6
1170SAMAN-1
1.010
20.0
12.4
H
3320NAULA-3
0.992
1320NAULA-1
0.986
1.000
2990KIRIND-2
3570BIYAG-3
1.010
1535KEGA-1
3530THULH-3
1990KIRIND-1
3990KIRIND-3
1.014
3% I
3% I
9% I
9% I
9% I
9% I
75%
I
75%
I
5% I
30%
I
30%
I
91%
I
5% I 7% I
31%
I
78%
IN
/A
77% I
53%
I
86%
I
67%
I
60%
I
77%
I
50%
I
91%
I
6% I
14%
I39
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35%
I
5% I
15% I
78%
I
43%
I
43%
I
23% I
20% I
20% I
56%
I
57%
I26
% I
92%
I
48%
I
92%
I
70%
I
77% I
20% I
20% I
N/A
13%
I
13%
I
12% I
12% I
59% I
49%
I
59% I
88% I
21%
I
21%
I
N/A
N/A
21%
I
68% I
68% I
30%
I
50%
I64
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50%
I64
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18%
I
18%
I88
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40%
I
40%
I
105%
I
99%
I
6% I
6% I
47%
I
40%
I
40%
I
40%
I
2% I
2% I
91%
I
39% I 8% I
35%
I
7% I
96%
I
86%
I
94%
I
88% I
43%
I
5% I
5% I
54%
I55
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4% I
55%
I55
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9% I
86%
I
83%
I
56%
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27% I
27% I
83%
I
40% I
40% I
83%
I
16% I
53%
I
16% I
16% I
64%
I
35%
I
35%
I
82%
I
70%
I
49%
I
25% I
47% I
52%
I48
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59%
I
22%
I
88%
I
86%
I
105%
I
86%
I
76%
I
N/A
N/A
97%
I
30% I
30% I
92%
I
18% I
18% I
4% I
4% I
31%
I
18% I
64%
I
80%
I
63%
I
100%
I
85%
I
85%
I
100%
I
100%
I
66%
I
64%
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63%
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80%
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79%
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79%
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79%
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100%
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100%
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80%
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94%
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85%
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87%
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100%
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87%
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87%
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83%
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83%
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17% I
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58% I
85%
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22%
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49%
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29%
I 34%
I
34%
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33%
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33%
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33%
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44%
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11% I
11% I
88%
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98%
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78%
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93%
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93%
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72%
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5% I
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60%
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13% I
55%
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65%
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15% I
15%
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69%
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23% I
23% I
21%
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39%
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83%
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17%
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18%
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80%
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104%
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28%
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59%
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83%
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11%
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20%
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33%
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29%
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100%
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100%
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47%
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27% I
75%
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85%
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12% I
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12% I
30% I
30% I
20% I
20% I
77%
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6% I
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32% I
18%
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18%
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30% I
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31%
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41%
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41%
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35%
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15%
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15%
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22% I
22% I
64%
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50%
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69%
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69%
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16% I
25%
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27%
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10% I
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20% I
N/A
55%
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3% I
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3% I 49%
I49%
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26%
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26%
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86%
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25% I
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26% I
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54%
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45%
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27%
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69%
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6% I
14%
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38%
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15% I
28%
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13%
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55%
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33%
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24% I
27% I
N/A
30%
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23%
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49%
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24%
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66%
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11% I
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68% I
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49%
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32%
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19% I
25%
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29% I
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43%
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2300KELAN-2
0.994
2350COL-L-2
2570BIYAG-2
122.
8
94.0
122
.7
116
.0
0.991
2305KERAWALA_2
1.008
2580KOTUG-2
0.996
0.993
36% I
3305KERA-3
1.018
1270COL-M-1
1.004
1350COL-L1
1.005
137
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23.
9
137.
8
19.3
1750COL_E-1
1.004
100.
3
4.3
100
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2.5
1260COL-N-1
1.002
1550KOLON-1
1.0001760COL_F-1
1.004
23.9
74.
9
23.
9
71.5
1.001
50.
6
59.6
50.6
62.
9
83.8
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6
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7
42.6
1950COL-P-1
1.002
1530THULH-1
0.992
1820ATURU-1
1.001
1130POLPI-1
49%
I45
% I
35% I
28% I
34% I4270
COL-M-11
1.003
4260COL-N-11
1.017
0.997
33.1
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62%
I
1110N-LAX-1
30.
7
SW
14.3
74.8
13.
9
74.
6
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2
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9
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9
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3
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1
10.
1
12.6
10.3
15.
1
1210BOWAT-1
1680KURUN-1
2230VICTO-2
2240RANDE-2
2250RANTE-2
3250RANTE-3
3620BADUL-3
1.005
3630BALAN-3
1.010
1790RATMA-1
4760COL_F-11
1.003
4750COL_E-11
1.018
3670MATARA-3
1.014
3120WIMAL-3
1.005
1.005
3520NUWAR-3
1520NUWAR-1
1620BADUL-1
0.978
3540ORUWA-3
1670MATARA-1
0.980
1660EMBIL-1
1.004
3200UKUWE-3
1630BALAN-1
1540ORUWA-1
1570BIYAG-1
3680KURUN-3
1.005
1705NEWANU-1
1700ANURA-1
1.004
1850PANAD-1
0.987
1560PANNI-1
1.004
1.001
3790RATMA-3A
1.007
1.000
3400HAMBA-33
3660EMBIL-3
1.016
3850PANAD-3
3160INGIN-3
1.004
3701ANURA-3B
1.004
1710TRINC-1
1.004
1870K_NIYA-1
1830VEYAN-1
3690HABAR-3
1740RATNAP-1
3740RATNAP-3
0.989
3565PANNI-T
3870K-NIYA-3
1.003
3840JPURA_3
0.999
1.002
4435COL_A_11
3890DEHIW_3
3800MATUG-3
1.004 4650GALLE-SV
1.048
3650GALLE-3
1.007
2.2
6.7
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6.7
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7
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7
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9
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20.
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6
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1
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2
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25.0
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0
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3
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11.7
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3560PANNI-3
35.0
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32.1
3830VEYAN-33
1250RANTE-1
5.7
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7
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4
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17.0
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SW
20.
2
49.
5
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1
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1
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1
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1
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1
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1
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1.007
27.0 4.1
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5
1
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0.999
3900PANNAL
1.010
1
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41.5
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1
83.7
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1
SW
10.
2
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1
1.004
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0
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SW
30.
8
SW
3300KELAN-33
1.011
1
113.
0
2
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22.
0
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1720KILINOCH-1
17.7
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2
1
64.7
39.2
38.0 4.0
1
23.2 1
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1
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1
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1
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1
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1
1
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SW
36.7 4.9
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1
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0
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0
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4
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3
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5
1.000
SW
31.2
33.
7
16.1
1430COL_I_1
45.4
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4430COL_I_11
1.011
2560PANNI-2
36.
0
38.
7
124.
0
11.4
27.8
31.7
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1
31.7
17.1
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L
1.013
1440KATUNA-1
17.8
47.1
1
24.2
7.5
5.5
7.5
30.
7
18.
9
30.8
18.7
6.8
8.1
6.8
30.
730
.8
18.7
1.007
18.
9
53.7
28.1
53.
6
27.
8
11.1
30.1
11.5
1450MAHO-1
3450MAHO-3 14
.9
1
37.1
37.4
1580KOTUG-1
0.984
22.6
10.2
15.2
3.0
1
22.6
8.2
1.002
1470VAUNAT-1
1.000
3.6
1
19.7
5.5
1.008
1
58.0
24.7
24.0
25.1
11.5
25.
0
12.
025
.1
11.5
12.
0
3460POLON-3
26.8
9.1
13.
7
1.011
83.7
14.6
1.012
38.5
1.002
17.9
0.985
3490PALLEK-3
1.005
24.6
7.9
1
24.6
11.2
12.3
4.8
12.
3
3.9
12.3
12.
3
3.9
SW
20.
2
6.7
1
5.6
3330MONARA-324
.3
1
24.3
6.1
8.8
1340BELIAT-1
3340BELIAT-3
48.0
1
48.0
14.0
39.7
8.9
20.8
8.7
21.
8
8.7
22.
2 3
9.3
4.3
4.9
35.9
1.012
43.
7
0.6
44.
8
SW
40.3
1
0.0
0.0H
19.6
10.4
65.
2
33.5
H
64.5
H
10.
1
1.007
1.002
6.2
SW
0.999
3551KOLON-3B
0.988
2.3
1
1.4H
3470VAUNAT-3
1.001
3780VALACH_3
70.0
H11
3.0
67.0
12.2
R
2225UPPER-KOTH-2
151.
1
5.3
150
.5
5.8
151.
1
5.3
150
.5
5.8
1
75.0
46.5
H
2
75.0
46.5
H
1
30.0
105.
6
1980COL_B_1
1.016
6.6
8.5
37.
7
37.8
15.
2
27.0
21.6
40.8
23.7
1
40.8
25.3
78.6
SW
1
SW
15.
250
.2
25.1
8.0
25.
1
8.2
1.005
10.
6
124.
2
87.9
123
.8
124.
2
87.9
123
.8
88.
8
5.9
20.
0
65.4
45.9
8.0
2.2
0.962
1655WELI-1
17.5
63.7
28.3
63.
2
26.
9
63.7
28.3
63.
2
26.
9
39.2
25.8
39.
1
25.
8
39.2
25.8
39.
1
25.
8
3655WELI-3
1.017
48.0 2.0
48.
0
1.5
SW
1
48.0
14.0
4.0
49.
5
38.0
3440KATUNA-3
47.1
6.4
0.965
0.987
1815N_CHILAW-1
1.013
14.
9
7.5
7.1
7.5
73.
5
10.
0
7.8
0.984
1.000
40.
0
2830VEYAN-2
14.4
57.0
296.
8
19.8
292
.9
5.7
296.
8
19.8
292
.9
5.7
169.
9
45.
9
168
.6
46.7
169.
9
45.
9
168
.6
197
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74.3
197.
7
72.
7
197
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74.3
197.
7
16.3
130.
7
23.
8
129
.2
130.
7
23.
8
119
.5
109.
5
126
.712
6.7
36.2
29.
2 9
5.9
95.9
95.
9
29.
1
95.9
0.985
27.2
27.
2
2.1
2.0
1960MAHIYA
3960MAHIYA-3
1.2
34.5 2.2
34.
5
3.9
3590SAPUG-3A
7.3
79.1
1410KUKULE-1
194
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12.
7
195.
6
32.
3
0.6
32.3
32.
3
32.3
0.2
0.2
6.6H
1970PADUKKA-1
74.
6
13.
9
14.3
1120WIMAL-1
8.2
25.
1
27.1
50.2
78.
6
15.
0
1300KELAN-1
16.3
1.000
17.1
1690HABAR-1
25.
0
137
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51.
7
136.
8
62.8
132
.3 7.8
132.
4
4.1
1.002
129
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2705NEWANU-2
109
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31.2
111.
9
36.
2
109
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31.2
111.
9
36.
2
2
250.
0
48.0
R
1.003
385
.7
13.
2
391.
1
59.0
1.002
14.8
12.
5
21.
9
12.6
14.8
12.
5
21.
9
3581KOTU_NEW_3
72.
7
10.
1
37.
1
1800MATUG-1
15.
5
0.6
3820ATURU-3
2220KOTMA-2
36.1
1810PUTTA-1
10.
21.
5
30.0
3.9
88.
8
0.999
3705NEWANU-3
1.001
0.97240
.0
55.0
20.5
55.4
21.2 55.0
20.5
55.4
21.2
1.006
1.000
45.8
3
54.0
33.5
H
1.004
33.7
194
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12.
7
195.
6
14.7
1.001
84.6
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17.8
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39.
8
24.8
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9
4.0L
59.7
25.1
45.4
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3150AMPA-3
1150AMPA-1
30.
0
27.7
9.4
27.4
8.4
1
3770KIRIB-3
4190COL_K_11
1
2.9
1.8
3.2
1.8
5.8
1
8.1
1.008
3550KOLON-3A
4.6
48.1
4.8
1330MONARA-1
3.7
48.0
3.8
53.
1
2.2
54.2
1.0
22.0
0.0
0.0
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22.5
14.
6
22.
012
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46.
8
6.5
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8
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101
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2
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51.6
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12.8
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1.001
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385
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2
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1
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1900PNNALA
73.
9
1.040
1725TRINC-PS
1.040
31.3
58.0
23.
9
108.
9
30.2
107
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9
108.
9
107
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53.3
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51.
6
4.7
14.
1
2650GALLE-2
14.7
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61.
3
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58.3
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1
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2135NEW-POLP 2
133.
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247
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126.
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1135NEW-POLP-1
17.4
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0
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8
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0
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4.7
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1.004
42.3
14.4
14.
4
42.3
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4
1600BOLAW-1
27.5
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16.8
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0
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4
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20.6 5.6
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1
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1290KALUT-1
0.982
3290KALUT-3
1.007
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1
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38.7
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38.7
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38.
7
5.7
1
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7
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0
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3720KILINOCH_3
64.7
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SW
30.
318.6
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0
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51.3
1100LAX-1
2815NCHILAW-2
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1.004
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1.001
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75.
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3691NHAB-3
1780VALACH_1 1
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4.8
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1860MADAM-1
30.
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117.
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1910ANIYA
19.9
4251RANTE-G1
1140CANYO-1
36.4
10.7
10.
7
10.
7
40.3
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3640DENIY-3
74.8
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7
31.
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9
36.
0
61.
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3301KELAN-3A
1840JPURA_1
5.6
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1890DEHIW_1
1435COL_A_1
6.9
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1920COL_C_1
4920COL-C-11
40.
84980COL_B_11
1.0000
103
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118.
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103
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0.0
114
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29.
0
28.
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4352COL-L2-11
4351COL-L1-11
1.004
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1.000
0.999
0.993
1.012
1.186
1190COL_K_1
1.005
1.021
1.001
1.005
1.004
0.999
1.0060.971
1.008
3420HORANA_3
1420HORANA_1
1.018
0.955
1.010
0.951
1400HAMBA-1
3930SURI'WEWA-1
1.017
0.953
1930SURI'WEWA-1
1.000
1940UMAOYA-1
1.001
0.985
1.004
1.003
0.991
1.000
0.992
0.987
1.004
1.007
1.007
1.0201.0141.020
1.0331.0331.030
1.020
1.017
1180BROAD-1
0.960
0.977
1770KIRIB-1
1.007
3580KOTUG-3
1.016
1.000
1.006
0.996
2970PADUKKA-2
1.007
1.012
1.004
0.9991.013
3535KEGA-3
0.986
1,200 sq.mm cable
3700ANURA-3A
1240VAVUN-1
3480KAPPAL-3
0.9880.988 1880AMBALA
11.1
24.
5
1650GALLE-1
11.
0
1170SAMAN-1
1.009
20.0
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H
3320NAULA-3
0.990
1320NAULA-1
0.984
1.000
2990KIRIND-2
3570BIYAG-3
1.005
1535KEGA-1
3530THULH-3
3990KIRIND-3
1.030
18.8
202
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59%
I
83%
I
85%
I
31%
I
18%
I
11%
I
18%
I
N/A
33%
I
40%
I
40%
I10
0% I
100%
I
100%
I
49%
I
25% I
75%
I
85%
I
12% I
20% I
20% I
12% I
31% I
31% I
21% I
21% I
77%
I
5% I
5% I
33% I
18%
I
18%
I
30% I
30% I
33%
I
40%
I
40%
I32
% I
32%
I
28%
I
28%
I
24% I
24% I
66%
I
53%
I
70%
I
70%
I
12% I
33%
I
53%
I
7% I
7% I
17% I
N/A
60%
I
3% I
60%
I
3% I 54%
I54%
I
31%
I
31%
I
87%
I
25% I
7% I
7% I
26% I
26% I
56%
I51
% I
45%
I
53%
I
69%
I
10% I
14%
I
38%
I
22% I
28%
I
13%
I
54%
I54
% I
4% I
3% I
33%
I
17% I
31% I
21% I
24% I
26% I
N/A
29%
I
51% I
N/A
N/A
23%
I
25% I
48%
I
48%
I
24%
I
24%
I
60%
I
N/A N
/A
8% I
8% I
61%
I
43%
I
33% I
43% I
34%
I
56%
I
20%
I
30% I
30% I
20%
I
12% I
12% I
17%
I
17%
I
9% I
9% I
15%
I
19% I
17%
I
19% I
17%
I
N/A N
/A
32% I
9% I
3% I
N/A
N/A
N/A
N/A
33%
I
33%
I
N/A
N/A
23%
I
23%
I
8% I
8% I
69%
I
31% I 11% I
28%
I
10%
I
85%
I
17%
I 17%
I
N/A
N/A
N/A
27%
I
N/A
35%
I
30%
I
85%
I
60%
I
90%
I
28% I
86%
I
3% I
32% I
9% I
12% I
17% I
17% I
24%
I29
% I
5% I
87%
I
87%
I
87%
I
N/A
N/A
87%
I
87%
I
41% I
18% I
N/A
N/A
N/A
N/A
89%
I88
% I
N/A
100%
I
15%
I
63%
I50
% I
68% I
49%
I
49%
I
49%
I
N/A
27%
I
27%
I
N/A
N/A
N/A
33%
I
N/A
72%
I
35%
I
79%
I
79%
I
79%
I81
% I
81%
I
81%
I
38% I
67%
I
71%
I
N/A
67%
I
71%
I
N/A
41%
I
90%
I90
% I
49%
I
49%
I
35%
I
33% I
22% I
33%
I
31% I
55%
I
38%
I
2300KELAN-2
0.995
2350COL-L-2
2570BIYAG-2
131.
7
96.8
131
.6
118
.8
0.992
2305KERAWALA_2
1.007
2580KOTUG-2
0.995
0.994
38% I
3305KERA-3
1.017
3500KOSGA-3
0.981
3510SITHA-33
0.998
1270COL-M-1
1.004
1350COL-L1
1.005
147
.6
22.
5
147.
7
18.0
1750COL_E-1
1.004
110.
2
5.6
110
.2
3.9
1260COL-N-1
1.002
1550KOLON-1
0.9991760COL_F-1
1.004
16.0
78.
9
16.
0
75.5
1.001
42.
7
63.6
42.7
66.
9
75.9
53.
6
75.
8
46.6
1950COL-P-1
1.000
1530THULH-1
0.988
1820ATURU-1
1.000
1500KOSGA-1
63.9 3.6
62.
4
2.0 1510
SITHA-1
0.988
2.6
31.
2
2.9
30.5
1990KIRIND-1
1.046
62.3
4.2
61.
3
5.2
15.9
19.
4
15.
7
18.0
1130POLPI-1
0.975
52%
I49
% I
36% I
28% I
33% I
142% I
71% I
139%
I
57% I
4270COL-M-11
1.003
4260COL-N-11
1.017
0.997
33.1
14.1
33.1
20.3
4950COL-P-11
62%
I