1. 15th Tcc / 16th srpc meeting Venue: GOA Date: 29th / 30th April 2011
POWER SYSTEM OPERATION CORPORATION LIMITED
SOUTHERN REGIONAL LOAD DESPATCH CENTER
BANGALORE 1

2. NEW PROJECTS OF NTPC, NLC, NPCIL & UMPP
SL NO 1 OF TCC

3. NTPC SIMHADRI STAGE - II (2 X 500)
SL NO 1.1 OF TCC

4. NTPC SIMHADRI STAGE - II
MoP conveyed the allocation of Power from Simhadri Stage II to beneficiary states.
Units I test synchronised in March 2011 & COD yet to be declared.
Units II likely to be commissioned by June 2011
Scheduling of Simhadri Stage II will be done by SRLDC w.e.f COD
Data / Speech communication to SRLDC is made operational & under testing
Till the date of COD of Simhadri Stage – II
Simhadri shall regulate infirm power injection as per SRLDC instruction on real time basis

5. NPCIL KUDANKULAM STAGE 1 (2 X 1000)
SL NO 1.3 OF TCC

6. NPCIL–KUDANKULAM STAGE I
NPCIL informed that for Kudankulam all equipment's are in place at site and the commissioning activities are in full flow.
Units I & II are likely to be commissioned by June 2011 & March 2012.
In Special TCC held on 3rd Jan NPCIL Informed Reactor of 1st Unit was likely to go critical by March 2011and generation was expected from April 2011
SPS & Speech facilities to be provided
- Permission given by TN for placing MUX
- SRTS -2 to confirm the status / probable date of completion
SEM & SCADA Data Validation to be done by NPCIL – Observed error of 16kV between Field and Scada data at Kudankulam bus
Commissioning of Bus Reactor at Kudankulam is essential for ensuring availability of reliable start up supply.
The parallel closing of second line between Tirunelvelli – Kudankulam will be at 410 kV and Opened at 425 kV
SRPC
TN REPLY

7. VALLUR JOINT VENTURE BETWEEN NTPC & TNEB ( 3 X 500)
SL NO 1.4 OF TCC

8. VALLUR JOINT VENTURE BETWEEN NTPC & TNEB (3X500)
Unit sizes of 500 MW.
TANTRANSO had informed that commissioning of the 1st unit could be delayed by 2-3 months because of issues regarding the coal handling plant.
MoP vide letter dated 28th September 2010 had communicated the allocations to the beneficiaries states as given:
Allocation:
AP: MW
KAR: MW
KER: 49.9 MW
TN: MW
Pondy: 6.7 MW
Unallocated: MW
Nellore – Allmatty D/C Study Results
Nellore – Allmatty D/C Study Report

9. JOINT VENTURE OF NLC& TNEB AT TUTICORN (2 X 500)
SL NO 1.5 OF TCC

10. Joint Venture of NLC & TNEB at Tuticorin
NLC had informed that orders had been placed on M/s BHEL and civil works had commenced.
MoP had communicated allocations to the beneficiary States.
NLC had informed that with the action plan given by M/s BHEL, Units I & II were scheduled to be commissioned during August 2012 & October 2012 respectively.

11. KAYAMKULAM MW/ 1950 MW
SL NO 1.6 OF TCC

12. KAYAMKULAM 1950 MW/1050 MW PLANT
Feasibility report for the project had been finalized by NTPC.
Pipeline from Kochi Terminal to Kayamkulam was being developed by M/s GAIL.
GoI had circulated drafts on price pooling mechanism. Price of LNG was linked with prices of crude oil. The unit rate was likely to be Rs Rs per unit in the present scenario where crude oil prices ranging between $ 70-80/barrel.
Requisition from KPTCL & KSEB received by NTPC.
Conditional consent communicated to NTPC by APTRANSCO.
TANTRANSCO & Puducherry – Presently price pooling mechanism not very clear, would be interested in case tariff was advantageous.

13. NLC NEW THERMAL POWER PROJECT (2X 500)
SL NO 1.7 OF TCC

14. Neyveli New Thermal Power Project (2x500 MW)
Director (Power ),NLC had informed that the project was likely to take 40 months after PIB approval and was targeted to be commissioned in PIB approval was likely in the next six months.
MOP vide letter dated 29th October 2010 had communicated allocation of power from this project
PGCIL informed NLC had applied for connectivity. NLC had been requested to apply for LTA also to take up planning of evacuation scheme
Tamil Nadu had informed that this being a replacement project since Tamil Nadu was loosing 600 MW , entire 1000 MW from the new project to be allocated to them.

15. Neyveli New Thermal Power Project (2x500 MW)
TNEB’s share was 100% in Neyveli Stage 1.
Old plant was commissioned in 1962.
Present Evacuation Plan is at 230/110kV
Designed for evacuating 600MW.
Since 2 x 500MW plant is coming up, inter connection to 400kV is desirable.
Wheeling issue

16. KRISHNAPATTANAM UMPP(3960 MW)
SL NO 1.8 OF TCC

17. KRISHNAPATTANAM UMPP(3960 MW)
KRISHNAPATTINAM UMPP
400kV D/C QUAD MOOSE
765 KV
TN UMPP
Cochin
Madugiri

18. KRISHNAPATTANAM UMPP(3960 MW)
The unit configuration had been finalized as 6 x 660 MW and CERC had been approached for revised configuration, clearance awaited.
CMD, APTRANSCO had informed that about Rs. 300 Crores had already been invested and progress was their in all the fronts.
Project is being developed by Reliance Power Limited.
The plant may come up beyond 2014.

19. Schedule Date of Commissioning of the Central Sector/JV Projects
Station
Unit
Installed Capacity (MW)
Original date of commissioning
Revised date of commissioning
Simhadri Stage - II
I,II
500, 500
11th Plan
Mar-11, June-11
Kayamkulam
I, II & III
1050/1950
12th Plan
Vallur JV with TNEB I II
III
500+
Oct-11
Dec-11
Dec-12
Neyveli – II (Exp)
250
2006 – 07
Mar-11
Jun-11
Tuticorin JV with TNEB
500
Aug-12
Oct-12
Sirkalli TPP
I,II,III
3 X 660
52 Months, 58 Months,
64 Months from GOI approval
Kaiga IV
220
Sep – 07
Nov-10
Kudankulam Stage – I
1000
Dec – 07
Dec – 08
Mar-12
Kalpakkam (PFBR)
2010 – 11
Krishnapattanam VI
4000
June 2013
Feb 2015
Cheyyur
2015 – 17

20. PAYMENT OF CHARGES OF TNEB OWNED TRANSFORMERS AT SRIPERUMBUDUR & SALEM
SL NO 2 OF TCC

21. PAYMENT OF CHARGES OF TNEB OWNED Xmers AT SRIPERUMBUDUR & SALEM
Discussed in 13th Commercial Sub-Committee meeting held on 19th July 10 whereas PCKL had agreed to put up a draft computation for the tariff.
In the 14th SRPC meeting, it was noted that TCC had agreed that the proposal prepared by PCKL be deliberated in details by the Special Commercial Committee before being put up to TCC/SRPC.
Matter was further deliberated in the Special Commercial Sub-Committee meeting held on 29th Sep 10 wherein it was noted that proposal from PCKL was awaited, while APTRANSCO had also submitted their proposal on the issue.
Outcome of the 14th commercial Sub – Committee meeting
TNEB would compute the charges for the period from to in line with norms prevailed during the period and the Commercial Sub-Committee would validate the same for subsequent approval of TCC/SRPC.

22. MAINTENANCE OF MARCONI MAKE SDH EQUIPMENT
SL NO 3 OF TCC

23. MAINTENANCE OF MARCONI MAKE SDH EQUIPMENT
TN to Expedite Commissioning of their system to Coincide with SR2, PowerGrid Plan
Wide band Failure
Microwave Details
Minutes
12th Jan 10

24. EXISTING WIDEBAND NETWORK UNDER SOUTHERN REGION ULDC PROJECT
Ramagundam
Peddapally
Durshed
Jammikunta
Ch. Gutta
Shapur Nagar
Gazuwaka
Vidyut Soudha
Warangal Sub-LDC 36
134 11
Hydearbad SLDC (400) 46
Ghanapur
147
Visakapantam SWS
147
Tallapally 99 63
Kakinada
Srisailam LBPH 12
N’ Sagar PH
Bommur
Srisailam PH
217 66 87
Bhimadole 17
VTPS
Karnool
104
Vijayawada Sub-LDC
Hubli Sub-LDC 20
Somayajula Pally 76
Gooty 58
Ananthapur
Davanger Sub-LDC 98
Muddanur 57
Chinakam Pally Sub-LDC (Cuddaph)
302
Kumbalagodi
KPTCL SLDC
Somanhally
CHENNAI SLDC
Sriperabudur
B’LORE RSCC
181 30
Salem 400
S.P. Koil
LEGENDS: 19
156
Kannur Sub-LDC
Salem 230
Villianur
111 64
Neyveli-I
Pondicherry SCC
RSCC
Kozhokode B 93
Erode Sub-LDC
Panruti
SLDC
Trichur North
Chidambaram
Sub-LDC/ SCC
Chalakudy 31
Ingur
140
Trichy 230
Myladuthurai
130
Pongalur
RTU / Wideband location 26
Kovilvenni
Kalamassery SLDC
Udumalpet
Repeater Station
Thiruvarur
Adankottai
F. O. Link (ULDC)
Vaikkam
Orthanadu
Pallom
Pudukottai
Thirumayam
F. O. Link (APTRANSCO)
Kayamkulam
Karaikudi
M.W. Link (ULDC)
Kundara
Madurai 400
Sivaganga
Paripally
M.W. Link (TNEB)
Trivandrum North
Madurai Sub-LDC
VSAT link (KPTCL)
Vidyuthi Bhavanam Sub-LDC
Colour Code
C.S. links (ULDC)
CORPORATE LD&C DEPT.
Constituents links (ULDC)
APTRANSCO links

25. Proposed Solution for replacement of Existing Microwave Links installed under Southern Region ULDC Project
Visakapantam SWS
B’LORE
RSCC
CHENNAI SLDC
Karnool
Muddanur
Gooty
Ramagundam
Vijayawada
Sub-LDC
Durshed
Warangal Sub-LDC
Gazuwaka
Kakinada
Bommur
Bhimadole
VTPS
N’ Sagar PH
Tallapally
Srisailam PH
Srisailam LBPH
Shapur Nagar
Ch. Gutta
Vidyut Soudha
Hyderabad SLDC (400)
Chinakam Pally Sub-LDC (Cuddaph)
Ananthapur
Somayajula Pally
Somanhally
Salem 400
Salem 230
Sriperabudur
S.P. Koil
Neyveli-I
Pondicherry SCC
Villianur
Myladuthurai
Thiruvarur
Erode
Karaikudi
Madurai
Madurai 400
Pudukottai
Udumalpet
Trichy 230
Ingur
Kannur Sub-LDC
Kozhikode B
Chalakudy
Pallom
Kundara
Trivandrum
North
Vidyuthi Bhavanam
Kayamkulam
Kalamassery
SLDC
Trichur North
KPTCL SLDC
Hubli Sub-LDC
Davanger Sub-LDC
Ghanapur 11
147 63 66 87 17 99 12 46
134 36 20 76 58 98 57
302
181 19 64
140
156 30
111 93
130 31 26
104
217
Total OPGW = 1214kms
Total UGFO = 210 kms
LEGEND
RSCC
SLDC
Sub-LDC/ SCC
RTU / Wideband location
F.O Link (ULDC)
F.O. Link (APTRANSCO)
OPGW Link (existing)
Proposed UGFO link
Proposed OPGW link
Proposed Radio link
VSAT LINK (KPTCL)

26. Constraints In SR System
SL NO 4 OF TCC

27. TRANSMISSION SYSTEMS IN SR IN PROGRESS
KOODANKULAM
UNIT 1- JUN 11
UNIT 2- MAR 12
NLY-2 EXPN
UNIT1- MAR 11
UNIT-2 JUN 11
NLMNG
CHITOOR
KOLAR
HOODY
ALMATHI
HASSAN
SP-BUDUR
S’HALLI
HOSUR
KALIVENDAPATTU
MYSORE
BAHOOR
KOZHIKODE
SALEM
NEYVELI
ARASUR
NLY-EXP
NLY2-EXP
PUGALUR
THRISSUR
UDUMALPET
TRICHY
KARAIKUDI
COCHIN
MADURAI
MULTI-CIRCUIT TOWER ON 220 KV EDAMON-KAYATHAR CORRIDOR
EDAMON-TNVL WOULD BE AT 220 KV TO BEGIN WITH
EDAMON
TRANSMISSION SYSTEMS IN SR IN PROGRESS
TIRUNELVELI
TRIVANDRUM
KOODANKULAM

28. 400 KV D/C MYSORE-KOZHIKODE
a) Reduce losses by ~ 8MW
b) Enhance margin across constrained S1-S2 corridor.
c) Enhanced reliability for N. Kerala (an issue at present)
d) Relief for Thrissur(Madakathara) transformer ( Fully loaded)
e) Relief on loading of Idukki-LP-Madakathana 220 KV lines
g) Enhanced transfer capability to Kerala, opportunity to conserve hydro.

29. 400 KV D/C MYSORE-KOZHIKODE STUDY
WITH OUT KOZHIKODE-MYSORE D/C
GEN AT IDDUKKI ABOUT 520MW
MYSORE
NELAMANGALA
173 MWx2
227x2 MW
HOOTAGALLY
Losses
830.4MW
191 MW
13 MW
KADAKOLA
KOZHIKODE
TK HALLI
104 MW
KANIYAMPET
72 MW
48 MW
KANAKPURA
HORAHALLI
105 MW
AREACODE
173 MW
106 MW
139 MW
SOMANAHALLI
NALLALAM
111 MW
TRICHUR
KANJIRODE

30. Coal Stock Position
SL NO 5 OF TCC
DC vs Actual
Normative Vs DC

31. DAILY LINKAGE IN 1000 OF TONNES
Coal Stock Position
( As on 27-Apr-11)
DAILY LINKAGE IN 1000 OF TONNES
ACTUAL IN 1000 OF TONNES
IN DAYS
APTRANSCO 
VTS 26
127 5
KTS
18.9
301 16
RYTPS
16.5 97 6
SIMHADRI
23.1
164 7
KAKATIYA
5.8
109 19
ISGS 
RSTPS
38.1
535 14
TALCHER 52
417 8
KPCL
RTPS
25.1
404
BTPS
8.7
TNEB
ETPS
6.9 2
MTPS
13.6 73
NCTPS
10.4 59
TTPS
18.5 49 3

32. Issues Related to Transmission Schemes Agreed in Standing Committee
SL NO 6 OF TCC

33. HOSUR-ELECTRONIC CITY 400KV D/C TRANSMISSIN LINE
KOLAR
SOMANAHALLI
ELECTRONIC CITY
HOSUR-ELECTRONIC CITY 400KV D/C TRANSMISSIN LINE
400kV lines
YERANDAHALLI
In standing committee meeting it is proposed to Utilise the ROW of 220kV Yerandahalli-Hosur line for 400kV Hosur-Electronic City D/C line
KPTCL Director (Transmission) had stated that KPTCL would examine some alternate transmission system for Electronic city.
HOSUR-ELECTRONIC CITY 400KV D/C TRANSMISSIN LINE
400kV lines
In 28th standing committee meeting it is proposed to Utilise the ROW of 220kV Yerandahalli-Hosur line for 400kV Hosur-Electronic City D/C line
KOLAR
KPTCL Director (Transmission) had stated that KPTCL would examine some alternate transmission system for Electronic city to avoid ROW problems
HOSUR
ELECTRONIC CITY
SOMANAHALLI
YERANDAHALLI
KPTCL had been requested to explore possibility of establishing 400kV S/S at their existing 220kV S/S at Yerandahalli to solve the ROW problem.

34. 400 KV D/C HOSUR-ELECTONIC CITY
PGCIL to do joint survey with KPTCL, if necessary latest stringing
methodology would be adopted.
KPTCL informed that critical RoW issues existed at two locations.
CE (Trans.) Bangalore had been nominated from KPTCL side for joint survey.
APTRANSCO had requested to furnish cost implication on account of adoption of unconventional technology.

35. Transmission Capability of HVDC Back to Back stations
SL NO 7 OF TCC

36. Transmission Capability of HVDC Back to Back stations
In 57th OCCM of SRPC, SRLDC had clarified that it would not be able to certify the past cases as PDO was in service during that period and constituents had to take a decision in this regard

37. ULDC Requirements Beyond 2011
SL NO 8 OF TCC

38. LTSA FOR SR –ULDC SCHEME
Maintenance for comprehensive software and hardware maintenance support for EMS/SCADA system supplied under SR-ULDC scheme with two year extension is going to expire on
As the upgradation process will take quite a time, as per the request of constituents SRLDC has obtained the quote from M/s GE for extending the AMC by one year with a provision for one more year for further extension if required.
SRLDC seeks approval of constituents to go ahead with the proposal with negotiation as the rate quoted by M/s. GE was 30% (Approx) higher than the present AMC charges

39. AMC CHARGES OF SR ULDC SCHEME FOR THE PRESENT AND PROPOSED BY M/S GE

41. Automatic Data Reading (AMR) /Collection
SL NO 10 OF TCC
Analysis
Details

42. IEGC RELATED ISSUES
SL NO 11 OF TCC

43. RGMO
SL NO 11.1 OF TCC

44. Units Mandated on RGMO as per IEGC
Description
Units Mandated on RGMO as per IEGC
Telemetry Status
Hydro
Thermal
total
Avaialble
Not available
Total
No of units
194 59
253
231 22
Installed capacity
10888
15600
26488
25996
492
Status of RGMO in SR
Confirmation
for participation
Excemption/
Extention
requested to
CERC
Offer received from
OEM/Implementation
Unit Not
participating in
RGMO as declared
by the constituents
No information
with RLDC for
status 9 52 64 36 95
256
Installed
capacity
4310
6185
8855
1771
5367

45. Mandated And Declared Summary
RGMO
RGMO analysis:
1.Droop >30% considered as non response for RGMO
2. Ramagundam Unit #5, 6, & 7 generation is in the range of 102 to 105%
2. On all instances Idukki, Varahi, Nagjhari, Lower Sileru, Sharavati, Sengulam, Kundah –I,II,III are responding for immediate increase and decrease. (Units already in FGMO)
3. In adequate response from thermal generating units
4. Mostly hydro generating units responded (which is under FGMO)
5. In adequate response leading to system insecurity Hence petition will be filed by SRLDC to CERC during next month
Case Study
Response Summary
Mandated And Declared Summary
Summary

46. Automatic Demand Management Scheme
SL NO 11.2 OF TCC

47. Automatic Demand Management Schemes
Extracts from IEGC dated 28th April 2010
Clause (d)
Quote:
The SLDC through respective State Electricity Boards/Distribution Licensees shall also formulate and implement state-of-the-art demand management schemes for automatic demand management like rotational load shedding, demand response (which may include lower tariff for interruptible loads) etc. before , to reduce overdrawl in order to comply para (a) and (b) . A Report detailing the scheme and periodic reports on progress of implementation of the schemes shall be sent to the Central Commission by the concerned SLDC.
All the Constituents are requested to Operationalize
Unquote:
Status

48. Automatic Load Shedding Scheme for Overdrawing Constituents at frequency less than 49.5Hz
SL NO 11.3 OF TCC

49. The Quantum of Load relief through Radial feeder is due for revision.
In the 14th SRPC Meeting held at Cochin, Constituents had agreed to Implement the Load Shedding Scheme for over drawing constituents to avert frequency falling below 49.5 Hz with the following quantum
APTRANSCO had been identified 800 MW and tested for remote tripping.
TANTRANSCO had been identified 647MW and made operational
KSEB had identified MW
KAR had identified 384MW ( Max)
PONDY to furnish the feeder details.
The Quantum of Load relief through Radial feeder is due for revision.
Excel Computation
Status

50. Arranging Interruptible Loads in four groups
SL NO 11.4 OF TCC

51. Extracts from IEGC dated 28th April 2010
Clause (e)
Quote:
In order to maintain the frequency within the stipulated band and maintaining the network security, the interruptible loads shall be arranged in four groups of loads, for scheduled power cuts/load shedding, loads for unscheduled load shedding, loads to be shed through under frequency relays/ df/dt relays and loads to be shed under any System Protection Scheme identified at the RPC level. These loads shall be grouped in such a manner that there is no overlapping between different Groups of loads. …………………...
AP & Kerala had completed the exercise
KPTCL, Pondicherry & Tamil Nadu had initiated the exercise
Unquote:
Status

52. Demand Estimation
SL NO 11.5 OF TCC

53. Extracts from IEGC dated 28th April 2010
Clause 5.3 (e)
Quote:
While the demand estimation for operational purposes is to be done on a daily/weekly/monthly basis initially, mechanisms and facilities at SLDCs shall be created at the earliest but not later than to facilitate on-line estimation of demand for daily operational use for each 15 minutes block.
Constituents are furnishing the block wise forecast
Unquote:
Status

54. UFR
SL NO 11.6 OF TCC

55. AUFR settings and Quantum Implementation Status
Pondicherry – To confirm the status
UFR Quantum is due for revision
Status

56. Pending Field Inputs
SL NO 11.7 OF TCC
Pending as on

57. Year wise comparison Details Constituent Mar2008 Mar2009 Mar2010
Apr2011 (20/04/11)
APTRANSCO
618
541
640
484
410
KPTCL
800
693
766
334
332
KSEB 25 18 24
TNEB
400
138
129
106
105
SR 1 (POWERGRID) 3 4 26 6 17
SR 2 (POWERGRID)
205
411
729
173
174
NTPC
RSTPS 56 32 22 35 31
RGCCP(Kylm) 16
NPCIL
KAIGA 40 45 61 63
MAPS 64 37
NLC
NLC TS 2 13 30 77 57
NLC TS 1 EXP 1
TOTAL
2217
1950
2493
1371
1266
Details

58. TRANSMISSION SYSTEM FOR EVACUATION OF POWER FROM SIMHADRI-II TPS (2x500 MW) OF NTPC
SL NO 12 OF TCC

59. LILO OF 400KV NUNNA-VTS DC LINE AT NARSRAO PET
TRANSMISSION SYSTEM FOR EVACUATION OF SIMHADRI-II
IN 28TH STANDING COMMITTEE MEETING, IT WAS DECIDED THAT IN STEAD OF NEW 400KV SIMHADRI-GAZUWAKA D/C LINE, 400KV GAZUWAKA-VEMAGIRI D/C LINE LILOed AT SIMHADRI
PRESENT 400KV VEMAGIRI-NUNNA AP LINES WILL BE CONNECTED TO NARSARAOPET BY DISCONNECTING FROM NUNNA
GAZUWAKA
MALKARAM
SIMHADRI
NARSARAOPET
VEMAGIRI
VTS
400KV GAZUWAKA-VEMAGIRI D/C LINE LILO AT SIMHADRI FOR EVACUATION OF SIMHADRI-II (2x500) POWER
LILO OF 400KV NUNNA-VTS DC LINE AT NARSRAO PET

60. SIMHADRI – II TPS EVACUATION
APTRANSCO had accorded concurrence for Open Access for a period of 5 years.
Further extension of Open Access would be reviewed w.r.t transmission availability.
APTRANSCO had informed that the charges had been worked out on ARR. The other constituents may like to take up the matter with APERC.
In the 13th & 14th SRPC meeting, it was noted that since the Regulations on the use of intervening system were likely to be notified by CERC, so there may be not be necessary for approaching APERC in the present scenario.
Since Kundankulam & NLC generation has not yet came so if Simhadri II Generation comes up, SR import capability will be reduced to that extent.
Allocation:
AP: MW
KAR: MW
KER: 80.9 MW
TN: MW
Pondy: 10.6 MW
Unallocated: 150 MW

61. OPERATION OF TALCHER-KOLAR HVDC TRANSMISSION SYSTEM IN GROUND RETURN MODE
SL NO 13 OF TCC

62. PRDC REPORT EXCERPTS
GRM OPERATION IS NOT POSSIBLE WITHOUT BLOCKING DEVICES AT LARGE NUMBER OF LOCATIONS
BLOCKING DEVICES SHIFT THE DC NEUTRAL CURRENT TO A DIFFERENT LOCATION
INVESTIGATE THOROUGHLY ELECTRODE DESIGN AND LOCATION
GRM TO BE LIMITED TO 150 MW
BLOCKING DEVICES TO BE PROVIDED AT KOLAR, DB PURA AND BIAL 220KV STATIONS
TRIP SINGNAL LOGIC NEEDS MODIFICATION?
Sudden Flow Reduction due to High ambient Tal & Low Kolar
CEA Letter
KPTCL Letter
GRM DETAILS
SPS 1000 & 450
APPENDIX-IV

63. PROGRESS OF BUS /LINE REACTORS TO BE COMMISSSIONED IN SR
SL NO 14 OF TCC

64. BUS / LINE REACTORS COMMISSIONING BY SR CONSTITUENTS
S. No
Bus Name
Bus / Line Reactor
Original Target
Revised Target Date 1*
Ramagundam
Bus
Feb-11
Aug-11 2
Simhadri
Nov-10
Mar-11 3
Neyveli – Expn.
Apr-11 4
Neyveli TS-II 5
Raichur TPS
Dec-10
Dec-11 6
Talaguppa
Jun-10
Mar-12 7
Guttur 8
Nelamangala 9
Hoody 10
Hyderabad
Line
Jun-11 11
Kurnool 12
Vizag
Voltages
The Bus reactor at NTPC Ramagundam have to be connected to Bus section 1 or 2 instead of Bus section 4
Guttur Line Reactor to be commissioned in addition to Guttur Bus reactor
Commissioning of Bus Reactor at Kudankulam is essential for ensuring availability of reliable start up supply

65. IDENTIFICATION OF STRETCHES IN THE STATE SECTOR WHERE INSULATORS ARE TO BE REPLACED DUE TO POLLUTION/FOG/SEA WATER
SL NO 16 OF TCC

66. Kali Complex in Karnataka. Tuticorin Area in Tamil Nadu.
HIGHLY SENSITIVE AREA (FREQUENT TRIPPING DUE TO POLLUTION/FOG/SEA WATER)
Kali Complex in Karnataka.
Tuticorin Area in Tamil Nadu.
Coastal Area around Kalpaka in Andhra Pradesh.
Tripping in Raichur Switch yard due to tracking of Insulators.
All Constituents to take up replacement of Insulators in prone area as well as cleaning up of Insulators in Switch yard which are prone to pollution.
TTPS
RTPS
PCC Meeting

67. OPERATIONALISING OF CHIKKODI-KOLHAPUR 220 KV LINE
SL NO 19 OF TCC

68. OPERATIONALISING OF CHIKKODI-KOLHAPUR 220 KV LINE
Any of the planning issues relating to Operationalizing of Chikkodi –Kolhapur 220 kV line like seeking exemption from CERC on Inter Regional ATC computation etc have to be done by SRPC Secretariat directly .

69. SHUT DOWN OF INTER REGIONAL LINKS
SL NO 20 OF TCC

70. SHUT DOWN OF INTER REGIONAL LINKS
Talcher – Kolar S/D to be availed only during July – December along with S/D of Talcher Stage II Units
Concurrence of NLDC & the connected region to be taken for planned outage of IR links
Annual Outage Plan of IR links to be concurred by NLDC & Concerned region

71. SHUT DOWN OF 400 KV VIJAYAWADA- NELLORE D/C LINE
SL NO 21 OF TCC
BEFORE S/D
AFTER S/D
AP LETTER

72. SCHEDULING OF TALCHER STPS STAGE II
SL NO 23 OF TCC

73. Scheduling of Talcher Stg II
Committee recommended that the scheduling of Talcher STPS-II be continued to done by SRLDC, as the clauses in the IEGC allow the same and change is not called for.

74. Scheduling of Talcher stg II
Clause 6.4 of IEGC
The national interconnected grid is divided into control areas, like Regional ISTS, States, DVC, etc. where the load dispatch centre or system operator of the respective control area controls its generation and/or load to maintain its interchange schedule with other control areas whenever required to do so and contributes to frequency regulation of the synchronously operating system. The Load Despatch Centre of a control area therefore is responsible for coordinating the scheduling of a generating station, within the control area, real time monitoring the station’s operation, checking that there is no gaming (gaming is an intentional mis-declaration of a parameter related to commercial mechanism in vogue, in order to make an undue commercial gain) in its availability declaration or in any other way revision of availability declaration and injection schedule, switching instructions, metering and energy accounting, issuance of UI accounts within the control area, collections/disbursement of UI payments, outageplaning etc
Control area definition in IEGC:
An electrical system bounded by interconnections (tie lines) , metering and telemetry which controls its generation and/or load to maintain its interchange schedule with other control areas whenever required to do so and contributes to frequency regulation of the synchronously operating system.

75. Why SRLDC ?
Minimal to and fro co-ordination between RLDC’s and SLDc’s in case of scheduling process involving surrender ,recall etc.
Less time in to and fro communication
Right from planning to implementation Talcher II is apart of SR system. Only geographically located in ER system
SR boundary is upto Talcher AC I/C & Jeypore end of Gazuwaka line
In analogy to 6.4.2c(iii) of IEGC and SoR of IEGC 2010 in para 41.13, the control area jurisdiction of Talcher-II shall be with SRLDC as more than 50% share is to SR constituents.
In case of Open Access transaction also the nodal RLDC is that of importing region. On same Anology SRLDC is nodal agency for Talcher-II

76. Continued It plays a vital role in the LGBR of SR
AOH coordination by SRPC OCC
SPS already in place for eventualities like unit /pole tripping.
Present system is working fine for over 8 years.

77. Extracts from SoR on IEGC dt.18.06.2010
41. Demarcation of responsibilities( Regulation 6.4 of draft grid code regulations)
41.13 This has been done to ensure certainty in the demarcation of responsibilities.
The IPP with their business strategy would decide quantum of power to be sold
through long term, Medium term and short terms. The connectivity to ISTS and
STU system indicates that generator wants to avail this flexibility. As the
customer of this type of generator would be in more than one region, RLDC
through its communication system would be able to coordinate with more than
one regions and also RLDC would be aware of system operating conditions like
transmission constraints, Voltage conditions etc and would be in better position
to ensure that scheduling to various consumers of the IPP is done optimally on
day to day basis. Hence, we have decided that if the host State has more than
50% share of power, then that generating station shall be under the jurisdiction
of SLDC, else it shall be under RLDC. Regarding the apprehension of some
stakeholders on frequent toggling of control area jurisdiction, it is clarified that
the control area jurisdiction is decided on the basis of permanent share of the
host State, which will not change frequently, hence frequent toggling would not
be there. Moreover, initially when one or two units/ stages of the project will
come under commercial operation, the jurisdiction would be more likely with
SLDC depending on the share of the host State. On the progressive
commissioning of units/ stages, it is more likely that the share of the host State
would decrease and become equal to or less than 50%, resulting in shifting of
control area jurisdiction from SLDC to RLDC. In future also, when more units
are commissioned, it is more likely that the control area jurisdiction will remain
with RLDC and there would not be frequent toggling. Regarding the
apprehension of some stakeholders about the problem in metering during due
to this toggling, it is clarified that the interface meters at CTU and STU
interfaces shall be installed as per the CEA regulations on metering. It is
further clarified that as switchover of control area would be done expeditiously
after the change w.e.f. the next billing period i.e. next week UI accounting there
shall not be any problem in energy accounting as anticipated by SLDC,
Maharashtra. For inter-State energy accounting, it shall be as per CERC ABT
mechanism.

78. LOW FREQUENCY OPERATION
SL NO 24.3 OF TCC
SCH VS DRW
ABC & 12%
FLOW GATE VIOLATION

79. % OF TIME WHEN FREQUECY WAS BETWEEN
FREQUENCY SPECTRUM OF SOUTHERN REGIONAL GRID
(APRIL’09 TO 27th APR’11)
MONTH
FREQUENCY (Hz)
% OF TIME WHEN FREQUECY WAS BETWEEN
MAX
MIN
AVG
< 48.5 HZ
48.5 TO 49.0 HZ
49.0 TO 49.2 HZ
49.2 TO 49.5 HZ
49.5 TO 50.0 HZ
50.0 TO 50.3 HZ
> 50.3 HZ
Apr-09
50.93
48.53
49.39
6.7
13.88
39.66
36.65
3.68
0.44
May-09
51.03
48.56
49.72
1.86
2.52
18.32
51.31
21.41
4.58
Jun-09
50.41
48.97
49.57
1.35
3.8
32.5
51.91
9.64
0.8
Jul-09
50.48
49.04
49.66
0.08
0.96
21.11
65.01
11.74
1.1
Aug-09
50.25
48.98
49.52
0.77
3.15
34.34
58.18
3.31
0.25
Sep-09
50.68
48.82
0.02
0.32
11.53
69.93
15.82
2.38
Oct-09
50.85
48.57
49.53
1.57
4.23
37.14
47.45
8.21
1.4
Nov-09
50.57
48.58
49.77
0.06
0.19
4.35
76.25
18.12
1.02
Dec-09
50.38
49.2
49.75
0.04
0.15
7.48
70.9
20.7
0.73
Jan-10
50.47
49.18
49.76
0.24
6.34
74.6
17.42
1.34
Feb-10
50.27
49.08
49.59
0.46
2.39
20.32
71.33
5.29
0.23
Mar-10
50.2
48.78
2.91
9.07
50.78
35.53
1.59
0.12
Apr-10
50.56
49.45
2.83
7.19
40.91
45.55
3.27
50.0 TO 50.2 HZ
> 50.2 HZ
May-10
50.88
49.84
0.28
2.45
71.97
19.26
5.79
Jun-10
50.67
49.81
0.83
1.04
3.88
73.81
14.52
5.92
Jul-10
50.69
48.92
49.85
0.03
0.16
1.27
82.36
12.13
4.05
Aug-10
50.54
48.7
0.17
3.52
77.64
13.39
5.24
Sep-10
48.84
49.92
1.33
64.25
26.49
7.62
Oct-10
50.66
49.24
49.91
0.21
71.15
21.47
7.17
Nov-10
50.97
48.88
49.99
0.07
0.54
55.03
28.53
15.8
Dec-10
48.96
0.75
67.24
22.33
9.65
Jan-11
50.99
49.22
49.82
1.43
79.97
15.04
3.56
Feb-11
48.83
49.7
0.42
7.91
85.73
4.95
0.92
Mar-11
50.82
48.81
49.61
0.78
18.27
78.63
1.77
0.38
Apr-11
50.86
49.65
0.00
0.33
1.46
20.10
69.77
6.97
1.37

80. HIGH FREQUENCY OPERATION
SL NO 24.4 OF TCC
GRAPHS & MSGs
Staggering of loads in a co-ordinated manner have to be done during change over by Constituents. Staggering to be reviewed

81. Major Events
SL NO 24.6 OF TCC
MAJOR EVENTS

82. Hydro Availability
SL NO 24.7 OF TCC

83. Reservoir Position LEVEL IN MTS 27/Apr/2010 27/Apr/2011 April JALAPUT
Full Reservoir Level
Last 9 Years Corresponding Monthly Average Level
LEVEL
Last 9 Years Corresponding Monthly Average MU's
ENERGY
Shortfall (-ve) / Rise (+ve) IN MU w.r.t Last Year Same Day
Shortfall (-ve) / Rise (+ve) w.r.t 9 years Corresponding Monthly Average
27/Apr/2010
27/Apr/2011
April MU %
JALAPUT
838.40
834.61
822.17
835.24
246 83
402
319
384
156 63
SRISAILAM
270.70
263.65
247.86
247.53
---
N’SAGAR
179.90
164.82
157.34
168.71
LINGANMAKKI
554.50
549.29
540.21
541.75
1143
1287
1515
228 18
372 32
SUPA
564.00
546.38
527.89
529.21
788
748
805 57 8 17 2
IDUKKI
732.43
721.53
708.94
713.50
601
595
837
242 41
236 39
KAKKI
969.80
974.23
958.89
959.90
318
333
350 5 10
NILGIRIS
534
491
191
-300
-61
-343
-64
TOTAL
3631
3537
4100
563 16
470 13

84. Reservoir Level Graph
4100 MU on 27th Apr 2011
31.99% on
27th Apr 2011

85. Grid Voltage SL NO 24.8 OF TCC Voltages
Vemagiri MOM
Vemagiri Tap Change
Installation of Bus reactor at Vemagiri complex may be considered to address the high voltage problem at vemagiri

86. VAR Absorption/Injection by Generators within Capability Limits
SL NO 24.9 OF TCC
Graphs

87. Operation of Talcher – Kolar HVDC Link in extended mode of operation
SL NO 27 OF TCC
Report

88. CRISIS MANAGEMENT PLAN
SL NO D 2.1 OF TCC
PROGRESS

89. Closing of 220/230 kV Inter State Lines
Supp Agenda 2 Point 4 OF TCC

90. VARIOUS MEETINGS WHERE ISSUE OF CLOSING AP-TN, AND INTER REGIONA LINKS WERE TAKEN UP
Sr.No.
Date
Meeting
Point Discussed 1
06-Jun-08
6th TCC
RADIALISATION OF CHIKKODI ON N-E-W GRID THROUGH CHIKKODI – KOLHAPUR LINE 2
13-Aug-08
28th OCC 3
18-Oct-08
7th TCC 4
11-Nov-08
29th OCC
STATUS REVIEW ON RADIALISATION OF CHIKKODI ON N-E-W GRID THROUGH CHIKKODI – KOLHAPUR LINE (DISCUSSED IN 28TH OCCM) 5
10-Dec-08
30th OCC
STATUS REVIEW ON RADIALISATION OF CHIKKODI ON N-E-W GRID THROUGH CHIKKODI – KOLHAPUR LINE (DISCUSSED IN 29TH OCCM) 6
05-Mar-09
8th TCC 7
10-Jul-09
37th OCC
OUTAGE OF 220KV CHITTOR - THIRUVALEM LINE SINCE 10TH FEB – PROGRAMME FOR PUTTING LINE BACK INTO SERVICE 8
CLOSING OF SULURPET-GUMMDIPOONDI FOR REDUCING OVERLOADING OF NEYVELI - S P BUDUR LINE 9
09-Sep-09
39th OCC
PROLONGED OUTAGE OF CHITTOOR-THIRUVELAM SINCE 10TH FEB 09 15:20 HRS 10
13-Oct-09
40th OCC
PROLONGED OUTAGE OF CHITTOR – THIRUVALEM LINE SINCE 10TH FEB 09 15:20 HRS 11
12-Nov-09
41st OCC 12
PROLONGED OUTAGE OF SULURPET –GUMMUDIPOONIDI SINCE 24 /10/09 22:40 HRS 13
11-Dec-09
42nd OCC
TN TO EXPEDITE SYNCHRONISATION OF CHITTOR-THIRUVALEM LINE 14
REVIEW OF SULURPET – GUMMIDIPOONDI O/L TRIPPING SETTINGS 15
08-Jan-10
43rd OCC 16 17
03-Feb-10
8th PCC
TN TO EXPEDITE SYNCHRONISATION OF SULURPET – GUMMIDIPOONDI & CHITTOR-THIRUVALEM LINE 18
11-Feb-10
44th OCC 19 20
09-Mar-10
45th OCC 21
25-Jun-10
48th OCC 22
14-Jul-10
49th OCC
CHITTOR-THIRUVALAM LINE CHARGED ON 23
08-Oct-10
52nd OCC
TN TO EXPEDITE SYNCHRONISATION OF SULURPET – GUMMIDIPOONDI LINE 24
10-Dec-10
54th OCC
SYNCHRONISED THE 230 kV SULURPET – GUMMIDIPOONDI LINE ON 25
10-Jan-11
55th OCC
RESTRICT THE LINE LOADING TO < 100 MW ON SULURPET – GUMMIDIPOONDI LINE 26
08-Feb-11
56th OCC 27
09-Mar-11
57th OCC

91. Operation of 400 kV Lines Upto SIL derived steady State limit
Supp Agenda 2 Point 2 OF TCC
PPT
REPORT

92. Thank You

93. Automatic Data Reading (AMR) /Collection
To avoid all the data related delays and fulfill the deadlines set by IEGC, SRLDC had proposed to adopt AMR scheme in SR. In SR, there are about 600 SEMs installed in about 100 locations. Scheme may be implemented by PGCIL at an estimated cost of about Rs. 1.5 Crores which can be recovered through tariff in the same way as the cost of SEMs is being recovered.
Outcome of the 14th commercial Sub – Committee meeting
Committee in principle agreed the proposal.
SRLDC suggested that cost may be recovered through tariff. 93

94. Proposal for automatic data reading
(AMR) /collection (to be implemented by POWERGRID):
To avoid delays in SEM data transmission to SRLDC it is proposed to adopt AMR scheme in SR at an estimated cost of Rs.1.5Crores.Schematic representation of AMR is as below.
Hardware required for each location:
Modem-1 no, Data Concentrator Unit-1 no
Local Computer- 1 no., Remote Computer at SRLDC – 1 no.
Cost of Communication on GPRS mode : as per actual. 94

95. Bill Of Quantities
Sl. No.
Description
Qty. *
Unit
Rate Rs **
Amount Rs. A
For S/S with meters located in Control Room (Aprox. 120 S/S) # 1)
All required hardwares i.e. Meter Interfacing Unit/Protocol Comnverter/Optical Probe/ Connectors / Cable for data transfer between meters and Data Concentrator etc.
700
Per SEM
6602 2)
Data Concentrator Unit/Data Accumulator (one No. at each location)
120
No.
22000 3)
GPRS Modem (One No. at each location)
6500
780000 B
Common for total Scheme
Meter Data Acquisition & Analysis software (For all Data Concentrator Units/Data Accumulators (Approx. 120 Nos.) and Servers at SRLDC (2 Nos.). 1
Lumpsum
Training to personnel posted at all S/S where scheme will be commisioned and SRLDC. (10 Trainings with a batch of participants) 10
200000
Installation, Testing & Commissioning/Customization cost
2112 C
CENTRAL LOCATION (AT SRLDC & 6 SLDCs)
Central server (Including cost of required RDBMS & OS) 7
175000
UPS (2 KVA)
30000
210000
GPRS/GSM Modems
45500 D
Wararnty / AMC
Warranty for 1 year
NIL
AMC for 1st year after Warranty
806
564480
AMC for 2nd year after Warranty
800
853
682667 4)
AMC for 3rd year after Warranty
900
894
804414 5)
AMC for 4th year after Warranty
1000
929
929032
Total 95

96. Minutes of 14th NRPC meeting reg. AMR scheme implementation
Back 96