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WELCOME TO K. SWAMINATHAN, CHAIRMAN K. SREERAMA MURTHY, MEMBER
SURINDER PAL, MEMBER OF APERC, ANDHRA PRADESH 24th June, 2005 POWER GRID CORPORATION OF INDIA LIMITED SOUTHERN REGIONAL LOAD DESPATCH CENTRE
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PRESENTATION OVERVIEW
SR GRID - QUICK FACTS OPEN ACCESS REGULATIONS – RECENT CHANGES IMPACT OF CHANGES – CASE STUDIES SHORT TERM OPEN ACCESS – EXPERIENCES SCHEDULE – DRAWAL GRAPHS REGULATORS ROLE - CPPs STATE SECTOR – INTRASTATE ABT
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THANK YOU
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SOUTHERN REGIONAL GRID QUICK FACTS
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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REGIONAL GRIDS INSTALLED CAPACITY TOTAL 116,372 MW
NORTHERN :- 31,230 MW EASTERN :- 17,697 MW SOUTHERN :- 32,734 MW WESTERN :- 32,354 MW NORTH-EASTERN :- 2,357 MW TOTAL ,372 MW NORTHERN REGION NORTH-EASTERN REGION EASTERN REGION WESTERNREGION SOUTHERN REGION
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SOUTHERN REGION – GEOGRAPHY
ANDHRA PRADESH TAMIL NADU KARNATAKA KERALA POPULATION : CRORES ( 22% OF INDIA) AREA :- 651 (‘000 SQ KM)(19% OF INDIA) INSTALLED CAPACITY:- 32,734 MW(28.1%) PER CAPITA CONSUM. – 700 unit (A. I. – 567) WEATHER :- South-west monsoon North-east monsoon SEA COAST :- AROUND 4000 KM TALA PROJECT-LARGE CENTRAL GRID ARUNACHAL TO GUJARAT ON SAME FREQ
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INSTALLED CAPACITY IN SR
STATES HYDRO THERMAL NUCLEAR DIESEL/GAS WIND/ OTHERS TOTAL % AP 3586 2993 --- 272 2 6853 21% KAR 3277 1470 128 5 4879 15% KER 1811 -- 235 2047 6% TN 1987 2970 423 19 5400 17% PONDY 32 0.1% C.S 8090 830 360 9280 28% IPP 278 387 2506 1071 4243 13% 10939 15910 3956 1099 32734 33% 49% 3% 12% The above capacity does not includes --- About 1342 MW of Wind Mill Capacity in Tamil Nadu. Micro and Captive plants in different states.
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SOURCE-WISE INSTALLED CAPACITY OF SR
IN MW NUCLEAR WIND/OTHERS HYDRO GAS THERMAL 32,734 MW
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GENERATING UNITS IN SOUTHERN REGION
UNIT CAPACITY AP KAR KER TN CGS TOTAL THERMAL (500 MW) 2 8 10 THERMAL ( MW) 7 13 15 45 GAS/THERMAL ( MW) 9 3 23 HYDRO (>50 MW) 27 16 85 48 36 19 37 162 A.P TYPICAL GENERATOR SPREAD IN SR KAR - HYDRO - THERMAL KER TN GENERATING STATIONS ABOVE 1000 MW - GAS / NAPTHA GENERATING STATIONS 500 – 1000 MW - NUCLEAR GENERATING STATIONS BELOW 500 MW
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LOAD MW LOAD MW
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GRID MAP ABOUT 12000 CKM 400KV TRANSMISSION
TALCHER BHADRAVATI TYPICAL FLOWS ARE FROM NORTH TO SOUTH JEYPORE 178x2 2x221 SIMHADRI NTPC 8x4 RSTPP 400 KV LINE PRESENTLY OPERATED AT 220 KV SHORTLY WILL BE OPERATED AT 400 KV. 1 GAZUWAKA(AP) 189 301x2 15x2 187 P 195 267x2 VISAKHAPATNAM (POWERGRID) HYDERABAD KHAMMAM P 197x2 P 115 317 P MMDP 155 P 146x2 221x2 VIJAYAWADA RAICHUR 258 P NAGARJUNASAGAR Nagjhari 172 279 GRID FOCAL POINT SHIFTED TO KOLAR AFTER COMMISSIONING OF HVDC 308 ABOUT CKM 400KV TRANSMISSION MUNIRABAD SSLMM KODASAALY P 277 KAIGA KURNOOL 52x2 N SIRSI 120 P GOOTY 60 CUDDAPAH DAVANAGERE P 300 NELLORE KADRA 302 173 HIRIYUR 330 242 NELAMANGALA 28 BANGALORE ALMATHI HOODY P KOLAR MADRAS P TALGUPPA HOSUR MAPS 182 181 63 175 SALEM PONDICHERY P NEYVELI 54 179 151 164x2 UDUMALPET QUANTUM CHANGES IN FLOW PATTERN LIKELY AFTER COMMISSIONING OF KOODANKULAM 2000 MW P TRICHY 130x2 TRICHUR P P 127 130x2 P MADURAI PALLOM EDAMON THIRNELVALI KAYANKULAM 2x78 THIRUVANATHAPURAM KOODANKULAM
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TYPICAL LOAD CURVE OF SR
EVENING PEAK SUMMER WINTER MONSOON
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SHARP PEAK DEEP VALLEY DEEP VALLEY
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GRID OPERATION TYPICAL ISSUES IN THE PAST
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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GRID OPERATION – TYPICAL ISSUES IN PAST
LOW / HIGH FREQUENCY PROBLEMS FREQUENCY EXCURSES TO LOW/HIGH VALUES LOW / HIGH VOLTAGE OPERATION CRITICALLY LOW VOLTAGES AT LOAD CENTRES SUBSTANTIALLY HIGH VOLTAGES AT FAR ENDS SYSTEM BROWNOUTS / BLACK OUTS SEPERATION OF SYSTEMS / LOSS OF LOAD ECONOMIC IN-STABILITY / INCREASED ELECTRICAL LOSSES UNRELIABLE / INEFFICIENT OPERATION OF EQUIPMENT ...THE END RESULT :
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GRID PRESENT STATUS 400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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FREQUENCY DURATION CURVE 2002-03, 2003-04 & 2004-05
<49.0 49.0 & <49.5 49.5 & <50.5 50.5 & Above Max Min Avg FVI 0.13 8.49 91.21 0.17 50.90 48.62 49.85 0.83 2.30 22.03 75.23 0.44 51.17 48.18 49.69 1.95 49.48 14.48 34.03 2.01 51.37 47.69 48.95 18.86
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COMPARISION OF BANGALORE VOLTAGE-TYPICAL DAY
2003 2004 BETTER VOLTAGE PROFILE MEANS LESS ELECTRICAL LOSSES REALITY BITE: FARMERS IN KARNATAKA ARE HAPPY WITH FEWER HOURS OF QUALITY POWER!!. EFFICIENCY OF PUMPS AT TG HALLI WATER WORKS IMPROVED! 2002
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WATER SUPPLY TO BANGALORE
PUMPING LOSSES REDUCED ENORMOUS SAVINGS TO THE STATE MOTOR BURNING AND MAINTENANCE COSTS ALSO CAME DOWN DRASTICALLY LOW VOLTAGE PROBLEMS AROUND BANGALORE HAMPERED WATER SUPPLY EARLIER WITH BETTER VOLTAGE NOW, PUMPING EFFICIENCY HAS IMPROVED 400 KV STATION AT MYSORE BEING COMMISSIONED ON WAR FOOTING TO FURTHER FORTIFY THIS PART OF THE GRID
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SOUTHERN REGION LOSS* 2002 2003 2004** 2005** LOAD (MW) LOSS % AP 6510 408 6.27 5983 264 4.41 7234 311 4.30 7557 279 3.69 KARNATAKA 4078 265 6.50 4609 237 5.14 5158 228 4.42 5285 183 3.46 KERALA 1928 82 4.25 2227 101 4.54 2479 86 3.47 2453 66 2.69 TAMILNADU 6135 224 3.65 6888 240 3.48 7421 198 2.67 7522 216 2.87 PONDICHERRY 215 0.00 CENTRAL GENERATING STATION 472 684 538 121 SOUTHERN REGION 19123 979 5.12 20391 842 4.1 22830 823 3.6 23153 744 3.2 *Source : Report of System Studies conducted for Accessing Shunt Compensation requirement in Southern Region – March 2004 and March SREB ,CEA ** Projected figures 0.5% REDUCTION MEANS 100 CR ANNUAL SAVINGS
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GRID PRESENT STATUS CARDINAL EVENTS
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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GRID PRESENT STATUS -- CARDINAL EVENTS
AVAILABILITY BASED TARIFF UNIFIED LOAD DESPATCH SCHEME INTERREGIONAL AC / HVDC LINKS NEW GENERATION ADDITION – SYSTEM STRENGTHENING SCHEMESS OPERATIONAL EXCELLANCE ...THESE EVENTS CHANGED THE FACE OF GRID OPERATION
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TALCHER – KOLAR HVDC LINE
Inter Regional Links 1650 MW 700 MW 1850 MW 900 MW 30,500 MW 2300 16,000 1100 MW 32,700 MW 1100MW Present IR Capacity = 9,000 MW 30,500 MW 2000MW GAJUWAKA HVDC BHADRAVATHI HVDC TALCHER – KOLAR HVDC LINE
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TALCHER KOLAR HVDC LINE LENGTH:1400 KMS
HVDC STATION KOLAR (KARNATAKA) TALCHER ORISSA) TALCHER KOLAR HVDC LINE LENGTH:1400 KMS
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TALCHER KOLAR SCHEMATIC
Electrode Station Electrode Station KOLAR +/- 500 KV DC line 1370 KM Kolar 400kv System 220kv system Hosur Hoody B’lore Chintamani Salem Madras Cudappah Udumalpet
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TALCHER-KOLAR IMPORT OF 18422MUs FROM ER THROUGH TALCHER-KOLAR UPTO MAY - 05 YEAR ---> 2002 2003 2004 2005 MONTHS TOTAL ENERGY (IN MU) MAX FLOW (IN MW) JAN --- 311 850 805 1528 852 1583 FEB 273 1010 701 1508 775 1865 MAR 491 1316 837 1600 884 1507 APR 473 1183 923 1500 878 MAY 172 1026 652 1385 704 JUN 277 994 688 1416 JUL 319 1075 759 1490 AUG 346 1088 628 1341 SEP 6 200 512 1533 742 1552 OCT 58 500 508 1458 829 1550 NOV 77 470 1048 719 DEC 241 750 630 1383 882 1615 TOTAL 382 4782 9165 4093 AVERAGE 96 399 764 819 MAX FLOW
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INTER-REGIONAL EXCHANGES DETAILS UPTO 124 WKS (Till 15.05.05)
WR ER Net Energy Transaction 77 MU IMPORT BY SR 683 MU Amount Due to SR Constituents Rs Cr. Rs Cr. Amount Credited TO SR Constituents
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GRID OPERATION: A TIGHT ROPE WALK
POWER SWINGS INSTABILITY INCREASED LOSSES BLACK-OUT IN-ECONOMIC OPERATION VOLTAGE COLLAPSE
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SHARP PEAK DEEP VALLEY DEEP VALLEY
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KADAMPARAI PUMP OPERATION
SAVINGS OF RS 40 LAKHS EVERY DAY INVESTMENT OF 1600 CRORES SAVED GENERATOR MODE PUMP PUMP THE PUMP MODE WAS NOT UTILISED SINCE INCEPTION!!!
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KADAMPARAI PUMP OPERATION ON 16TH MAY 05
90 Mcft Pumped
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KADAMPARAI GENERATION/PUMP ENERGY FROM JAN - 2003
2003 2004 2005 GENERATOR MODE PUMP MODE JAN 39 38 44 58 FEB 46 21 MAR 32 51 6 18 APR 35 40 26 3 MAY 37 43 41 48 30 JUN 29 45 55 JUL 47 49 50 AUG 54 SEP 36 25 OCT 15 NOV 23 24 DEC 53 TOTAL 446 507 328 330
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OPPORTUNISTIC UI TRADE
SAVING OF 50 LAKHS TO BOTH REGIONS
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DETAILS OF INTER-REGIONAL UI IMPORTS BY SR FROM WR AND ER
DURING 21st - 27th MARCH 05
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FREE GOVERNOR MODE OF OPERATION ON 12-DEC-04
SHARAVATHI -1 FREQ DROP FROM HZ TO HZ i.e. ~ 0.45HZ
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FREE GOVERNOR MODE OF OPERATION ON 12-DEC-04
SHARAVATHI -4 FREQ DROP FROM HZ TO HZ i.e. ~ 0.45HZ
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SHARAVATHI GENERATION – TYPICAL DAY
FREQ 400 MU IS WORTH 800 MILLION RUPEES AT RS 2.00/UNIT WHICH IS 80CRORE RUPEES MW
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OPTIMAL RESERVOIR UTILISATION SHARAVATHY / IDDUKI
Rs. Rs. Rs. Rs. Rs. 400 MU IS WORTH 800 MILLION RUPEES AT RS 2.00/UNIT WHICH IS 80CRORE RUPEES Rs. Rs. Rs. PLANT OPERATORS AT THESE STATIONS THINK OF THE RESERVOIR LEVEL IN RUPEES RATHER THAN IN FEET!!! Rs. Rs. Rs. Rs. Rs. Rs. Rs. Rs.
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SUMMARY OF UI – 124 WKS (FROM 01/JAN/03 TO 15/MAY/05)
AP KAR KER TN PONDY Total UI exported(-) / Imported(+) in MUs -4441 4132 1210 1163 -140 Total amount paid in Crores Rs. -899 768 204 344 28 Average rate of UI in paise/unit 202 186 169 296 203
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TOTAL UI AMOUNT DISBURSED:- 1600 CR AVG WEEKLY TRANSACTION:- 63 MU
UI IN SR (FROM 01/01/03 TO 15/05/05) TOTAL UI TURNOVER : MU TOTAL UI AMOUNT DISBURSED: CR AVG WEEKLY TRANSACTION:- 63 MU AVG WEEKLY UI AMOUNT DISBURSED:- 13 CR
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CUM. INS. CAP. ABOUT 16000 MW OF CAPACITY IS BELOW 300 Ps
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MAJOR AND MINOR DISTURBANCES SINCE 1994
NO DISTURBANCES DESPITE LOSING ENTIRE SUPER GENERATING PLANTS LIKE RAMAGUNDAM,VIJAYAWADA,KOTHAGUDEM, NORTH CHENNAI, SHARAVATHY ETC
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49.72 HZ
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MERIT ORDER : UNITS BOXED UP
POWER STATION STATE CAPACITY(MW) FUEL VARIABLE COST TATA DIESEL KARNATAKA 79 DIESEL 308 RAYALSEEMA DGPP 27 360 YELEHANKA DIESEL 128 314 THANRBHAVI 220 NAPTHA 325 SUB-TOTAL 454 BRAHAMPURAM DPP KERALA 107 275 BSES 157 KASARGODE PCL 22 298 KAYAMKULAM 322 646 BASIN BRIDGE TAMIL NADU 120 584 P.P.NALLUR 330 415 450 TOTAL 1550
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Unified Grid Operation
National Level NLDC Regional Level ERLDC WRLDC NRLDC SRLDC NERLDC 5 Nos. State HQ Level 32 Nos. SLDC Group / Distt Level 51 Nos. SUB LDC Plant / Sub- Station Level 1160 Nos. RTU
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Hierarchy of The ULDC Scheme in Southern Region
RLDC,Bangalore SCC, Pondy CPCC Hyderabad Kalamassery Chennai Bangalore Andhra Kerala Tamilnadu Karnataka Bangalore Hyderabad Kalam’erry Chennai Lingusugur Cuddapah Kannur Erode Warangal Trivandrum Madurai Hubli Vijayawada
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Karnataka Andhra Pradesh UT of Pondy Kerala Tamilnadu
Information Flow to Control Centres Ramagundam Karnataka Warangal Satellite Ghanapur HYDERABAD Vijayawada Andhra Pradesh Hubli Davangeree MW Link Chinkampalli Bangalore FO Link State owneed Link CHENNAI Sub-LDC SLDC Pondy Kannur-B Erode RCLDC UT of Pondy Kerala KALAMASSERY Tamilnadu Madurai Vydyuthi Bhavanam
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Complexities in Monitoring & Control Annual Inter-Regional
Southern Region Grid Complexities in Monitoring & Control Integrated Opn of Ten Power Utilities Annual Inter-Regional Energy Transfer ≈10,000MU Generators –Hydro, Thermal,Gas/IPP 422 nos. Transmission Network 400/220kV ≈ Ckm Installed Capacity ≈32704 MW 30,000 POINTS Active Power, Reactive Power, Voltage, Frequency, Transformer Tap Position, Circuit Breaker Position, Isolator Position etc. Transformation Capacity ≈ 45000 MVA Transformers (220kV and above) 480 nos. Dynamic Grid Conditions
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ULDC-THE EYES AND EARS OF THE SYSTEM OPERATOR
ALL CONSTITUENTS GET THE SAME DATA IN REAL TIME. TRANSPARENCY. SYNERGY IN OPERATION. NO “PASSING THE BUCK” APPROACH. QUANTUM LEAP IN VISIBILITY TO OPERATOR. INCREASED CONFIDENCE. FOCUS ON SECURITY AND ECONOMY. INCRESED SCOPE FOR TRANSACTIONS WITH OTHER REGIONS PREMPTIVE, DYNAMIC “EARLY WARNING” SYSTEMS. GRID LESS VULNERABLE TO DISTURBANCES. ACCURATE AND EASY ANALYSIS OF GRID INCIDENTS FASTER RESTORATION AFTER PERTURBATION COMPREHENSIVE EMS FUNCTIONS.
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SCADA SYSTEM SCADA SYSTEM FULLY FUNCTIONAL DATA COLLECTION/ ARCHIVING
DDC ( DISTURBANCE DATA COLLECTION) BEING EXTENSIVELY USED TREND GRAPHS USED EXTENSIVELY BY SYSTEM OPERATORS AT RSCC AND SLDC’S ALARMS AND EVENTS DATABASE BEING CONFIGURED NEXT: EMS
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NEXT: TRAINING PROGRAMS
ULDC : EMS FUNCTIONS REAL TIME NETWORK ANALYSIS IN OPERATION STATE ESTIMATION TOOL REAL TIME CONTINGENCY ANALYSIS CONTINGENCY CAN BE ANALYSED BY OPERATOR SYSTEM SUGGESTS REMEDIAL AND PREVENTATIVE ACTIONS NEXT: TRAINING PROGRAMS
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Packages under ULDC scheme
Sl No: Package Contractor Contract Value 1 EMS/SCADA System GE Harris, USA Rs. 148 Crores 2 Fibre Optic System PIRELLI, Italy Rs.100 Crores 3 Microwave System ALSTOM, France Rs. 63 Crores 4 PLCC/PABX Puncom, Punjab Rs. 4 Crores 5 Auxiliary Power supply package TATA LIEBERT, Mumbai Rs.6 Crores 6 Control Centre Facilities renovation/construction Awarded separately by each Constituent
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EMS/SCADA Package … Contd
Sl No: Constituent RTUs supplied Existing RTUs integrated Control Centres 1.0 APTRANSCO 91 - 4 2.0 TNEB 40 35 3 3.0 KPTCL 22 21 4.0 KSEB 30 5.0 UT of Pondy 5 9 1 6.0 Central Sector 27 Total 215 65 15 RTUs Grand Total : 280
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INTRA-STATE ABT COMMUNICATION REQUIREMENTS
SLDC TO DISCOM COMMUNICATION TO BE ON A STRONG REDUNDANT BACKBONE VISIBILITY OF DATA TO SYSTEM OPERATOR INTERCHANGE FLOWS EMBEDDED GENERATORS WIND FARMS, MINI HYDEL, CPP TO BE TELEMETERED IN STAGES AND FINALLY, DMS SYSTEM FOR LOAD MANAGEMENT DATA ARCHIVAL AND ANALYSIS COULD HELP IN ACCURATE SCHEDULING
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TRAINING PROGRAMS IDENTIFY AND ADDRESS TRAINING NEEDS
INTER-NETWORKING TRAINING IDENTIFIED AS KEY AREA ADDRESSED BY AN EXHAUSTIVE TRAINING BY REPUTED COMPANY PARTICIPANTS GAVE EXCELLENT FEEDBACK TRAINING ON AIX OPERATING SYSTEM , NETWORKING NMS AND SYBASE COMPLETED- RTU TRAINING ON ANVIL RE-TRAINING STRATEGY TRAINING FOR XA21 OPERATORS WILL BE CONDUCTED EVERY ALTERNATE MONTH BY SRLDC – TRAINING PROGRAMME FOR DEVELOPERS PLANNED EVERY TWO MONTHS CUSTOMISED MODULES WOULD BE SETUP AS PER REQUIREMENT
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TRAINING CONDUCTED SO FAR
SL NAME OF THE TRAINING FROM TO 1 CISCO ROUTER & NETWORKING 2 XA-21 USER LEVEL 3 RTNA WORKSHOP 4 AIX OPERATING SYSTEM 5 6 SYBASE ADMINISTRATION 7 8 NMS SUITE OF APPLICATIONS
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GENERATION ADDITION & SYSTEM STRENGTHENING
500MW TALCHER U # 5 ON COMMERCIAL OPERATION W.E.F 1ST NOV 04 500MW U#7 AT NTPC, RAMAGUNDAM TEST SYNCHRONISED ON 26-SEP-04. SYSTEM STRENGTHENING 220KV INTER-STATE LINES OF AP – KAR IN PARALLEL SEDAM – TANDUR FROM 18-AUG-04 GOOTY – ALIPUR FROM 10-SEP-04 40% FIXED SERIES COMPENSATION COMMISSIONED AT GOOTY OF GOOTY-HOODY LINE ON 19/OCT/04 FLOW INCREASED FROM 110MW TO 140MW. CUDDAPAH OF N’SAGAR-CUDDAPAH D/C LINE ON 20-21/OCT/04 FLOW INCREASED FROM 270MW TO 355MW. 400KV RAMAGUNDAM – HYDERABAD III & IV ON COMMERCIAL OPERATION FROM 01-NOV-04. Contd..
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GENERATION ADDITION & SYSTEM STRENGTHENING
HYDERABAD-KURNOOL S/C KURNOOL – GOOTY S/C GOOTY – NELAMANGALA S/C GAZUWAKA-NUNNA D/C LINE WITH 63 MVAR LINE REACTOR AT BOTH ENDS FUTURE
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LINES : 601+ 350 = 950 Km. ESTIMATED COST = 1710 CRORES
NEW PROJECTS ON THE ANVIL KUDANKULAM TRANSMISSION SYSTEM( 2000MW) LINES : = 950 Km. ESTIMATED COST = 1710 CRORES KUDANKULAM-TIRUNELVELI 2 X 400 KV D/C LINES WITH QUAD (108 & 83 Km.) TIRUNELVELI-UDUMALPET D/C LINE WITH TWIN MOOSE (300Km) KARNATAKA T N KERALA LILO OF BOTH CIRCUITS OF MADURAI-TRIVANDRUM LINE AT TIRUNELVELI ( 2 X 55 Km) EDAMON-MUVATTUPUZHA D/C LINE QUAD (150Km) TIRUNELVELI-EDAMON 400KV D/C LINE (110Km). MUVATTUPUZHA-TRICHUR 400KV D/C LINE WITH QUAD CONDUCTORS (90Km)
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NEW PROJECTS ON THE ANVIL
KUDANKULAM TRANSMISSION SYSTEM( 2000MW) SUB-STATIONS NEW 400/220KV SUBSTATIONS AT TIRUNELVELI, MUVATTUPUZHA AUGMENTATION OF TRANSFORMATION CAPACITY BY ONE TRANSFORMER EACH AT UDUMALPET & TRIVANDRUM S/S SUPPLEMENTARY TRANSMISSION SYSTEM LILO OF ONE CIRCUIT OF 400KV MADURAI-TRICHY AT KARAIKUDI ( 60 Km) ALONG WITH SUBSTATION AT KARAIKUDI (TAMILNADU) LILO OF ONE CIRCUIT OF TALAGUPPA-NELAMANGALA 400KV LINE AT HASSAN ( 80 KM) ALONG WITH SUBSTATION AT HASSAN.(KARNATAKA)
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MYSORE-KOZHIKODE D/C LINE
NEW PROJECTS ON THE ANVIL KAIGA 3 & 4 TRANSMISSION SYSTEM COST ESTIMATE : 512 CRORES LINES : 413 Kms MYSORE-KOZHIKODE D/C LINE LILO OF KOLAR-SRIPERUMBADUR AT MELAKOTTAIYUR (40KM) NARENDRA-DAVANGERE D/C LINE SUB-STATION : 2 Nos. New K E R A L NEW 400/220KV SUBSTATION AT KOZHIKODE & MELAKOTTAIYUR 2ND 315MVA TRANSFORMER AT HIRIYUR S/S. BAY EXTENSION AT NARENDRA, DAVANGERE (KPTCL) & HIRIYUR.
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NEW PROJECTS ON THE ANVIL
NLC-TS-II EXPANSION TRANSMISSION SYSTEM COST ESTIMATE : 721 CRORES LINES : 467 Km. 2 NOS. 400KV S/C LINES FROM NEYVELI-TS-II (EXISTING) TO NLC TS-II (EXPAN) (8 KM). KARNATAKA NEYVELI-PUGALUR D/C LINE T N PUGALUR-MADURAI D/C LINE K E R A L UDUMALPET-ARASUR D/C LINE LILO OF NEYVELI-SRIPERUMBU- DUR LINE AT PONDY. SUB-STATION NEW 400/220KV SUBSTATIONS AT PUGALUR, ARASUR & PONDICHERRY.
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SYSTEM STRENGTHENING SCHEMES
400 KV D/C KAIGA-NARENDRA 400 KV D/C MADURAI-TRIVANDRUM 400 KV D/C NELMANGALA-SOMANAHALLI 400 KV D/C RAICHUR-GOOTY LINE LILO OF SRISAILAM-NUNNA AT N’SAGAR LILO OF N’SAGAR-RAICHUR AT MEHBOOBNAGAR LILO OF NELLORE-MADRAS D/C AT ALMATHI 2X315 MVA, 400/220 KV SS AT ALMATHI
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