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POWER GRID CORPORATION OF INDIA LTD.

POWER GRID CORPORATION OF INDIA LTD. SRLDC, BANGALORE. PRESENTATION. ON. SOUTHERN REGIONAL GRID. By L.K.Kanungo. &. U.K.Verma. LINKS. SR GRID. SR GRID MAP. HIGHLIGHTS. INTER-REGIONAL LINKS. STATEWISE BREAKUP OF I/C. IMPORT THROUGH HVDC. GROWTH OF I/C & PEAK DEMAND.

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POWER GRID CORPORATION OF INDIA LTD.

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  1. POWER GRID CORPORATION OF INDIA LTD. SRLDC, BANGALORE PRESENTATION ON SOUTHERN REGIONAL GRID By L.K.Kanungo & U.K.Verma

  2. LINKS SR GRID SR GRID MAP HIGHLIGHTS INTER-REGIONAL LINKS STATEWISE BREAKUP OF I/C IMPORT THROUGH HVDC GROWTH OF I/C & PEAK DEMAND SR INSTALLED CAPACITY VOLTAGE SPECTRUM 2001-02 FREQ SPECTRUM 2001-02 U/F RELAY INTER-REGIONAL IMPORTS TYPICAL CITY LOADS EXPECTED T/L EXPECTED GENERATION 3D FREQUENCY JULY-02 3D DEMAND JULY-02 SHARE ALLOCATION TALCHER CGS GEN COST INTER-STATE TIE LINES PROBLEMS SOLUTIONS RESERVOIR POSITION SPARE KERALA TAMIL NADU ANDHRA PRADESH KARNATAKA ULDC PROJECT Hierarchy of ULDC Control Centres Communication Challel

  3. ANDHRA PRADESH INSTALLED CAPACITY CONSUMER PROFILE QUICK FACTS GRID HIGHLIGHTS VTS & LANCO EVACUATION KTS EVACUATION PROBLEMS GZK EVACUATION THERMAL N’SAGAR & SRISAILAM RESERVOIR TWIN CITY RING MAIN HYDRO EXPECTED TRANS. ADDITIONS COST OF GENERATORS JALAPUT RESERVOIR EXPECTED GEN. ADDITIONS 3D DEMAND JULY-02 REACTIVE POWER MANAGEMENT NATURAL ADVANTAGES POWER REFORMS

  4. KARNATAKA INSTALLED CAPACITY CONSUMER PROFILE QUICK FACTS GRID HIGHLIGHTS KAPS & NJPH EVACUATION PRESENT NELAMANGALA PROBLEMS RTPS EVACUATION FINAL SHARAVATHY RIVERS AND RESERVOIRS FINAL NELAMANGALA PRESENT SHARAVATHY 400KV T/L 3D DEMAND JULY-02 220KV T/L EXPECTED EXPECTED GEN. ADDITIONS VARIABLE COSTS

  5. KERALA INSTALLED CAPACITY CONSUMER PROFILE QUICK FACTS GRID HIGHLIGHTS GENERATION SCHEME GROWTH OF PER CAPITA INCOME PROBLEMS WIND MILL POTENTIAL GROWTH OF I/C Vs DEMAND GROWTH OF GEN & CONSUMPTION INFLOWS OF IDDUKI & KAKKI BREAKUP OF ENERGY CONSUMED 3D DEMAND JULY-02 VARIABLE COSTS POWER MAP EXPECTED GEN. ADDITIONS

  6. TAMIL NADU INSTALLED CAPACITY CONSUMER PROFILE QUICK FACTS GRID HIGHLIGHTS LOAD CENTRES TYPICAL LOADS IN MAIN CITIES PROBLEMS PROXIMICITY OF GENERATING STN. WIND ENERGY CHENNAI SUPPLY LIST OF HYDRO STATIONS PUMP STORAGE EXPECTED TRANS. ADDITIONS 3D DEMAND JULY-02 TOTAL INFLOWS EXPECTED GEN. ADDITIONS VARIABLE COSTS

  7. SOUTHERN REGIONAL GRID • ▀ Comprises four States and Union Territory of Pondicherry • ANDHRA PRADESH • KARNATAKA • KERALA • TAMIL NADU • Union Territory of Pondicherry • ▀ Centre Generating Stations in the Region are • Ramagundam Super Thermal Power Stn. : 2,100 MW (200x3 + 500x3) • Neyveli Lignite Corporation Ltd. - II : 1,470 MW (210 x 7) • Madras Atomic Power Station : 340 MW (170 x 2) • Kaiga Generating Station : 440 MW (220 x 2)

  8. TALCHER SR GRID MAP BHADRAVATI JEYPORE 178x2 SIMHADRI NTPC 2x221 8x4 RSTPP GAZUWAKA(AP) 1 301x2 189 15x2 P 187 195 VISAKHAPATNAM (POWERGRID) 267x2 KHAMMAM HYDERABAD 317 P P 115 197x2 P MMDP 155 P VIJAYAWADA 146x2 221x2 258 RAICHUR NAGARJUNASAGAR P Nagjhari 279 172 308 SSLMM MUNIRABAD P KODASAALY 277 KURNOOL 52x2 KAIGA SIRSI 120 P N GOOTY CUDDAPAH 60 P DAVANAGERE 300 NELLORE 173 302 400 KV LINE PRESENTLY OPERATED AT 220 KV KADRA HIRIYUR 330 242 NELAMANGALA 28 ALMATHI BANGALORE 98 P MADRAS P KOLAR HOODY HOSUR MAPS 182 181 63 175 PONDICHERY SALEM 54 P NEYVELI 179 151 164x2 UDUMALPET TRICHY P 130x2 TRICHUR P P 127 130x2 P MADURAI PALLOM KAYANKULAM EDAMON 2x78 THIRUVANATHAPURAM

  9. INTER REGIONAL LINKS TALCHAR CHANDRAPUR ORISSA JEYPORE MAH M.P BALIMELA BARSUR GAZUWAKA RAMAGUNDAM U.SILERU KOLHAPUR L.SILERU A.P BELGAUM T AMBEWADI GOA KAIGA KAR HVDC BI POLE HVDCB2B STATION KOLAR MAPS CENTRAL GEN.STATION NEYVELI PONDICHERRY 220 kV LINE T.N 400 kV LINE 110 kV HVDC LINE KER POWERGRID SRLDC

  10. INSTALLED CAPACITY OF SOUTHERN REGION AS ON 31.07.2002 IN MW 26347MW

  11. INSTALLED CAPACITY OF SR IN MW AS ON 31st July 02

  12. STATEWISE BRAKUP OF INSTALLED CAPACITY IN SR AS ON 31.07.2002 IN MW CGS AP TN KAR KER 26347MW

  13. SOUTHERN REGIONAL GRID HIGHLIGHTS • Installed Capacity - 26,347 MW • Average Daily Consumption - 359 MU • Average Grid Frequency - 48.30 HZ • Peak Demand Met - 20,063 MW • Demand Deficit - 17 % • Energy Deficit - 11 %

  14. Growth of Installed Capacity & Peak Demand Met Average Rate of Growth of Installed Capacity (MW): 4.5 % Average Rate of Growth of Peak Demand met (MW): 5.6 %

  15. IMPORT THROUGH HVDC 846 Crores 578 Crores 430 Crores 298 Crores 236 Crores 77 Crores

  16. IN MUs

  17. FREQUENCY SPECTRUM FOR 2001-02 LAST FOUR YEARS

  18. Frequency Profile: Last 4 years

  19. AUTOMATIC UNDER FREQUENCY LOAD SHEDDING SCHEME As per 129th SRE Board meeting, under frequency relays are to be set to operate in 3 stages at 48.0Hz, 47.8Hz & 47.7Hz instantaneous. Present Status of relief through U/F relays:

  20. VOLTAGE SPECTRUM FOR 2001-2002

  21. PROBLEMS • LOW GRID FREQUENCY • LOW VOLTAGES • HEAVY MVAR DRAWALS • CAPACITOR INSTALLATION-BACKLOG • MEAGRE RELIEF FROM AUFR’S • RELUCTANCE - MANUAL LOAD SHEDDING • TRANSMISSION CONSTRAINTS • PROTECTION CO-ORDINATION • GRID • DEFENCELESS • VULNERABLE

  22. SOLUTION • MAINTAIN FREQ BETWEEN 49-50.5 HZ • ACCELERATE SHUNT CAPACITOR INSTALLATION • REINSTATE 2 STAGE UFR’S • PROTECTION CO-ORDINATION • AUGMENTATION OF TRANSMISSION • SCIENTIFIC SETTLEMENT SYSTEM-ABT • FREE GOVERNOR MODE • SELF HEALING MECHANISM • CONJUNCTION

  23. Hierarchy of The ULDC Scheme in Southern Region RLDC,Bangalore SCC, Pondy CPCC Hyderabad Kalamassery Chennai Bangalore Andhra Kerala Tamilnadu Karnataka Hyderabad Kalam’erry Chennai Bangalore Cuddapah Kannur Erode Davangere Warangal Trivandrum Madurai Hubli Vijayawada

  24. Communication Channel for Information flow RLDC Wide Band Commn (MW / FO) SLDC SLDC Wide Band Commn Sub-LDC Sub-LDC Wide Band / PLCC Commn RTU RTU RTU

  25. Information Flow to Control Centres Ramagundam Karnataka Warangal Satellite Ghanapur HYDERABAD Vijayawada Andhra Pradesh Hubli Davangeree MW Link Chinkampalli FO Link Bangalore State owneed Link CHENNAI Sub-LDC SLDC Pondy RCLDC Kannur-B Erode UT of Pondy Kerala KALAMASSERY Tamilnadu Madurai Vydyuthi Bhavanam

  26. RSCC (1) CPCC (1) SLDC (4) SUB-LDC / SCC (14) FIBRE OPTIC LINK 110/132kv FIBRE OPTIC LINK (220kv) FIBRE OPTIC LINK (400kv) FIBRE OPTIC LINK (SEB) MICROWAVE LINK (39 links) SATELLITE LINK (KEB) RTU LOCATIONS (201) POWERGRID-ULDC PROJECT SOUTHERN REGION OVERALL TELECOM BACKBONE NETWORK PEDAPALLI RAMAGUNDAM DURSHED JAMMIKUNTA GAJUWAKA VIZAG SWS WARANGAL SHAPURNAGAR BOMMUR GHANAPUR HYDERABAD KAKINADA VTPS CH.GUTTA BHIMADOLE N’SAGAR PH HYDERABAD 400 VIJAYAWADA TALLAPALLI SRISAILAM PH KURNOOL SRISAILAM LBPH APTRANSCO RTUs 82(NEW) SOMAYAJULAPALLI HUBLI GOOTY N MUDDANOORRTPP DAVANAGERE CHINAKAMPALLY ANANTHAPUR BANGALORE PONDY RTUs 5 (NEW) 10 (EXST) CHENNAI SOMANAHALLI KPTCL RTUs 22 (NEW) 21 (EXST) SRIPERUMBUDUR KUMBALGODI P SP.KOVIL VILLIANUR PONDY KANNUR-B SALEM400 CENTRAL SECTOR RTUs 27(NEW) PANRUTI NEYVELI SALEM230 ERODE CHIDAMBARAM INGUR KOZHIKODE MYLADUTURAI PONGALORE UDUMALPET TRICHY KOVILVENNI TRICHUR NORTH THIRUVARUR TANJORE ADANIKOTTAI PUDUKOTTAI KALAMASSERY THIRUMAYAM MADURAI400 KARAIKUDI CHALAKUDI KSEB RTU’S 30(NEW) MADURAI SIVAGANGA PALLOM TNEB RTUs 40 (NEW) 35 (EXST) KAYANKULAM VIAKKAM KUNDARA PARIPALLI TRIVANDRUM NORTH VYDYUTHI BHAVANAM

  27. REACTIVE POWER MANAGEMENT • TAP POSITION OF 400KV ICTs AT GAZUWAKA, VIJAYAWADA, KHAMMAM & HYDERABAD CHANGED. • MVAR INJECTION(220KV TO 400KV) THROUGH ICT AT GAZUWAKA BUS REVERSED. • MVAR EXPORT(400KV TO 220KV) THROUGH ICT AT VIJAYAWADA, KHAMMAM & HYDERABAD INCREASED. • APTRANSCO REPORTED IMPROVEMENT IN 220KV VOLTAGE PROFILE & REDUCTION IN LOSS BY 1%(APPROX.)

  28. REACTIVE POWER MANAGEMENT

  29. VARIABLE COST OF SOME POWER STATION OF CENTRAL SECTOR

  30. CENTRAL SECTOR GENERATION EXPECTED IN MW

  31. POWERGRID TRANSMISSION LINES EXPECTED IN CKM 2002-03 2003-04

  32. RESERVOIR POSITION

  33. IN MW SHARE ALLOCATION BEFORE TALCHER(2000MW) SHARE ALLOCATION AFTER TALCHER(2000MW) IN MW

  34. 220KV INTER STATE TIE-LINES IN SERVICE • Tandur (AP) – Sadem (Kar) - Radial load on AP. • Gooty (AP) – Alipur (Kar) - Radial load on AP. • Chittoor (AP) – Tiruvalam (TN) - Radial load on AP. • Sulurpet (AP) – Gummidipundi (TN)- Radial load on AP. • Theni (TN) – Muzhiyar (Ker) - Radial load on Ker. ADVANTAGES: • REDUCTION IN CONGESTION IN 400KV LINES • IMPROVEMENT IN VOLTAGE PROFILE • REDUCTION IN LOSSES • REDUCTION IN ANGULAR DIFFERENCE • BETTER STABILITY

  35. KARNATAKA: QUICK FACTS • TOTAL AREA 191791 SQ KMS • NUMBER OF CONSUMERS 105 LAKHS • CONNECTED LOAD 14157 MW • 400 KV TL 1456 CKM • 220 KV TL 7433 CKM • 110 KV TL 6058 CKM • 66 KV TL 6196 CKM • 33 KV TL 6543 CKM • TOTAL LENGTH OF HT LINES 129434 KMS

  36. INSTALLED CAPACITY OF KARNATAKA AS ON 31-07-2002 IN MW 4828MW

  37. AS ON 31st July 02

  38. CONSUMER PROFILE IN KARNATAKA

  39. PROBLEMS FACED IN OPERATION • GENERATION DEPENDENT ON MONSOON • LOAD CENTRE IN SOUTH-GENERATION IN NORTH AND NORTH WEST-500-600 KMS AWAY • RTPS EVACUATION- O/L OF RTPS-LINGASUGUR LINES • KAPS EVACUATION –O/L OF KODASALLI-NJPH LINES– SLOW SWING • NJPH EVACUATION- O/L OF NJPH-HUBLI • LOADING OF GUTTUR-HIRIYUR-GB’NUR-DBPURA-HOODY SHOW ME SHOW ME SHOW ME GRIDMAP 220

  40. PROBLEMS FACED IN OPERATION • LOW VOLTAGES IN SOUTHERN PART OF THE STATE – INSUFFICIENT SHUNT COMPENSATION – OVERLOADED LINES • OVERLOADING OF SOMANAHALLI ICT’S: • MAX MW POSSIBLE AT 330KV = 770MW GRIDMAP 220

  41. 96 % OF I/C IS IN THE CIRCLES SHOWN 1260MW Raichur ~ ~ Nagjhari, Kodasalli, Kaiga & Kadra LOAD 1250MW ~ ~ ~ 1,565MW 1,330MW ~ Sharavathy, LDPH & MGHE ~ ~ 230MW Varahi ~ LOAD 500 MW LOW VOLTAGE ZONE 235MW Tanirbavi ~ LOAD 2250 MW

  42. HUMNABAD EVACUATION OF RTPS BB WADI SHAHBAD TANDUR(AP) SEDAM ML PURA RTPS 630 MW RTPS 630 MW HUBLI LINGASUGUR RAICHUR GADAG KUSHTAGI MUNIRABAD LINGAPUR JINDAL 120 MW ITTAGI GUTTUR

  43. KAPS AND NJPH EVACUATION TATA 81 MW CHIKKODI GOA BELGAUM XELDAM A-WADI M.L.PURA NARENDRA PONDA NJPH 855 MW KODASALLI 120 MW GADAG HUBLI TO LINGAPUR KADRA-150MW TO SHARAVATHY DAVANGERE HAVERI SIRSI: BUS1 KAIGA 440 MW SIRSI: BUS2

  44. PRESENT CONFIGURATION AT NELAMANGALA GUTTUR SHIMOGA B4 B1 B2 B3 NELAMANGALA HOODY ANCHEPALYA HOODY 220 KV HEBBAL PEENYA

  45. PRESENT CONFIGURATION AT NELAMANGALA • RELIEF OF 100-125 MW ON HOODY ICT • VOLTAGE AT HOODY IMPROVED: 7-9 KV • VOLTAGE AT S’HALLI IMPROVED: 5-7 KV • LOADING OF S’HALLI-SB’PURA AND S’HALLI-ITPL 220KV LINES RELIEVED. • ONE MORE STEP TOWARDS ACHIEVING A 400 KV RING MAIN AROUND BANGALORE

  46. FINAL CONFIGURATION AT NELAMANGALA GUTTUR SHIMOGA NELAMANGALA HOODY ANCHEPALYA HOODY 220 KV TO HOODY HEBBAL PEENYA

  47. PRESENT CONFIGURATION AT SHARAVATHY SHARAVATHY:1035 MW HUBLI S5 S1 JUMPER REMOVED TALAGUPPA STRP:240 ,MW S2 400 KV LINES OPERATED PRESENTLY AT 220 KV S3 S4 JUMPER REMOVED SHIMOGA TO DAVANAGERE TO NELAMANGALA- OPEN AT NELAMANGALA.TERMINATION WORKS PENDING

  48. FINAL CONFIGURATION AT SHARAVATHY SHARAVATHY:1035 MW HUBLI S5 TALAGUPPA:2*315 MVA STRP:240 ,MW S2 S1 S3 S4 SHIMOGA TO DAVANAGERE TO NELAMANGALA

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