Baart sarkar Government of India kondÌya ivaVut pàiQakrNawrpc.gov.in/occ/446occ_minute.pdf · 2013-04-18 · Baart sarkar Government of India kondÌya ivaVut pàiQakrNa Central

Baart sarkarGovernment of India kond`Iya ivaVut p`aiQakrNa

Central Electricity Authority piScama xao~Iya ivaVut saimait

Western Regional Power Committee ef -3, emaAayaDIsaI xao~, AMQaorI (pUva-), mauMba[- - 400 093

F-3, MIDC Area, Andheri (East), Mumbai - 400 093

Aa[- esa Aao : 9001-2008

ISO: 9001-2008

dUrBaaYa Phone: 022- 28221681; 28200194; 28200195;28200196 fO@sa Fax : 022 – 28370193 Website: www.wrpc.nic.in E-mail : [email protected]

saM: Paxaoivasa/p`caa. / Pa`sasa-kaya-vaR%t /2013-14/ 4033 idnaaMk 18.04.2013 saovaa maoM, ivaYaya:- p.xao.iva.saimait, mauMba[- kI Pa`caalana evaM samanvaya saimait kI 446 vaIM baOzk ka

kaya-vaR%t.

mahaodya,

piMScama xao~Iya ivaVut saimait, mauMba[- kI Pa`caalana evaM samanvaya saimait kI idnaaMk 10.04.2013 kao NTPC MUMBAI maoMoM Aayaaoijat 446 vaIM baOzk ka kaya-vaR%t AapkI saUcanaaqa- saMlagna hO .

Qanyavaad.

BavadIya,

saMlagna : ]Parao@tanausaar

Sd/- AQaIxaNa AiBayaMta (p`caalana)

MINUTES OF 446th MEETING OF OPERATION & COORDINATION SUB-COMMITTEE OF WRPC HELD ON 10th APRIL 2013 PRECEDED BY PRE-OCC

ON 9TH APRIL 2013AT NTPC MUMBAI.

The 446th meeting of Operation & Co-ordination Sub-Committee of WRPC was held on 10th April 2013 at NTPC, Mumbai preceded by pre OCC meeting on 9th April 2013 at WRLDC. The list of participants is enclosed at Annex-I-A.

Shri S S Sen, GM(O & S), NTPC welcomed all the participants of OCC & thanked WRPC for giving opportunities to host of the 446th OCCM .

Shri S D Taksande, Member Secretary(I/c), WRPC welcomed all the participants of OCC & thanked NTPC for making excellent arrangement for the 446th OCCM. He informed that approximately 5000MW capacity added in the Western Region during the March 2013 as given in following table, which is really a great achievement.

a) COMMISSIONING OF NEW GENERATING UNITS

SL.NO CONSTITUENT UNIT NAME UNIT NO C`ty(MW) DATE

TIME

1 GUJARAT CGPL 50 830 22.03.13 22:27

2 GUJARAT UNO SUGEN 1 382.5 4.4.13

3 MAHARASHTRA

IBL (India Bulls Limited,

Amravati) 1 270 25.3.13 23:27

4 MADHYA PRADESH Sasan 3 660 3.9.13 16:27

5 MADHYA PRADESH

ESSAR MAHAN 1 600 24.02.13

6 MAHARASHTRA IEPL (Bela) 1 270 20.3.13 16:27

7 CHHATISGARH Korba (West) 5 500 18.03.13 5:08

8 NTPC VSTPS 12 500 22.03.13 20:02 9 NTPC MAUDA 2 500 24.03.13 10 MAHARASHTRA TIRORA TPP 2 660 25.03.13

TOTAL 5172.5 During the deliberation about power scenario in the region, he intimated that WR is touching 40000 MW unrestricted demand and we should plan accordingly for coming months. Regarding frequency performance the frequency remained between 49.7 to 50.2 Hz for 87.43 % of the time during March 2013 & remain below 49.7 Hz for 1.02 %. Above 50.2 Hz for 1.55 %. He further informed that frequency didn’t touched 48.8 Hz during the month.

Thereafter he initiated discussion of operational issues as listed in item no 8 of agenda.

Minutes of 446th OCC meeting held in 9th & 10th April 2013

ITEM NO. 8: MISCELLANEOUS OPERATIONAL ITEMS

8.1 Quarterly Review of Crisis Management Plan

All the constituents were requested to submit the CMP report for the Fourth quarter (January 2013 to March 2013) for the year 2012-13.

Member Secretary I/C, WRPC requested the committee to submit the report at the earliest.

GM, WRLDC intimated about Critical Infrastructure Protection standards and suggested

utilities to go through the standard prescribed and accordingly plan the crisis management

activities.

The Sub-Committee members noted.

8.2 Status of Physical & Cyber Security in Power Sector regarding

Status of physical & cyber security in Power Sector for the Fourth quarter (January 2013 to March 2013) have not been received from some of the constituents.

Member Secretary I/C, WRPC requested the constituents to submit the report at the earliest.

GM, WRLDC intimated about ISO- 27001 for cyber security planning. He briefed about the objectives of the ISO 27001 when "provides a model for establishing, implementing, operating, monitoring, reviewing, maintaining, and improving an Information Security Management System". Regarding its adoption he suggested that utilities may adopt the ISO-27001 regarding the cyber securities after taking direction from their management.

Committee requested item may be discussed in ensuing SCADA committee meeting at WRLDC.


8.3 ANNUAL LOAD GENERATION BALANCE FOR THE YEAR 2013-14:

Member Secretary(I/c), WRPC informed committee that Annual LGBR for 2013-14 for the WR, has been prepared & circulated and is available at WRPC website.

Member secretary WRPC intimated that based on the generation target fixed by MOP, WRPC prepared Annual LGBR for the year 2013-14, and suggested the committee to go through report and if there is some suggestion, it will be incorporated in quarterly review.


8.4 TRANSMISSION LINES/ELEMENTS OUTAGE PLANING PROCEDURE IN

WESTERN REGION:

Member Secretary(I/c), WRPC stated that the transmission elements outages planning is

becoming very complex day by day which needs sophisticated and better planning procedure well

in advance. After lot of discussion/exercise in various OCC meeting, WRPC Secretariat framed a


standard procedure as per IEGC-5.7.4 under the guidance of Member (GO & D), CEA for better

planning. He informed that NLDC has prepared a detailed outages procedure for transmission

lines, interstate, intrastate and interregional lines. Committee may discuss our procedure for

transmission line outages vis-a-vis procedure framed by NLDC. And after deliberation our

comments would be forwarded to NLDC.

After discussion WRLDC/utilities requested for following modification:

(1) Sr No -13 of the annexure 8.4(Code Giving Procedure) shall be modified as follows:

“Since short term market clearance depends on available transmission capacity & is cleared on

day ahead basis, there was a need for better planning . (a) All utilities shall confirmed on D-3

about readiness to avail outages(where D is date of outage). (b) WRLDC shall issue code in

real time within reasonable time with best effort either the code to avail or cancel depending on

real time conditions. (c) Outages which are not confirmed by D-3, those outages shall be

deemed cancelled.”

(2) Sr No -15 of the annexure 8.4(Time limit for changes in Outage plan) shall be modified as follows:

Time limits for changes in Outage plan: In case outages are cleared say more than a month

ago but could not be availed in real time due to system conditions. Such outages may be

claimed during subsequent month. The OCC discussed the matter and concluded the following:

1)All outages of M + 1 is cleared by OCC ( Where M is the current month).

2) Any outage of M+1, which could not be cleared in M+1, can be availed up to the date

of next OCC. Thereafter a new outage plan has to be proposed in the next OCC. ( The OCC

accepted day wise approach as load-shedding plans are generally planned day-wise).

3)If any outages plan approved in OCC for the month could not be availed in the

respective month due to any unavoidable circumstance, the same can be cleared in real

time condition by WRLDC, after consent of WRPC.

4) All outages shall adhere to the Code Giving procedure.

5)Considering difficulties in giving line outages, all utilities may plan the outage with adequate

manpower and avoid repeating outages again and again.

With above modifications OCC finalized the transmission lines/elements outage planning procedure in Western Region, which is enclosed at Annexure 8.4.

The Sub-Committee noted the above suggestion and concurred for intimating the same to NLDC.


8.5 REQUIREMENT OF SPS IN CASE OF TRIPPIG OF CGPL-MUNDRA’S OUTLET

LINES:

Chief Engineer, SLDC Gujarat vide letter No. SLDC/CE MIS/WRPC/CGPL-SPS/T-1184

dated 01.04.2013(copy enclosed at Annexure-8.5) requested for SPS at CGPL in case of tripping

of CGPL-Mundra’s outlet lines.

Member Secretary I/C, WRPC suggested that Gujarat & CGPL may jointly devise a

suitable scheme which could be discussed separately or in the next PCM finalization.

GETCO agreed to above proposal.

8.6 COMMISSIONING OF LINE BAYS ALONG WITH LINE REACTORS AT 400 KV

KASOR END OF 400 KV D/C KASOR-RAJGARH LINE:

Chief Engineer, SLDC Gujarat vide letter No. SLDC/CE MIS/WRPC/CGPL-SPS/T-1185 dated

01.04.2013(copy enclosed at Annexure-8.6) requested for commissioning of line bays along with

line reactors at 400 KV Kasor end of 400 KV D/C Kasor - Rajgarh line by POWERGRID.

GM(WRLDC), appreciated the proposal put up by GETCO.

WRTS-II(PGCIL) representative intimated that they have already taken up the matter with their Corporate Centre, Gurgaon, for necessary clearance and assured to do needful on receipt of clearance from their Corporate Centre. He further intimated that while converting bus reactor to line reactor NGR is required to be bypassed & therefore isolator/breaker is required to be procured.

Member Secretary I/C, WRPC requested PGCIL to expedite the matter and do the needful before monsoon.

PGCIL noted as above.

ITEMS FROM WRLDC:

8.7.1 EMERGENCY OUTAGES AVAILED DURING MARCH’2013:

As per IEGC 5.7, WRPC is planning outages for next month, in every OCC meeting,

in consultation with WRLDC and constituents. However, constituents are also availing

emergency shutdowns. As discussed in various OCC forums, the agency availing emergency

shutdown has to explain the emergency in next OCC. The list of major outages availed under

emergency category are listed at Annexure-8.7.1. Also the list of outages planned but not

availed are attached in Annexure 8.7.1(A).


Utilities submitted the following reasons for emergency outages:

1. MPPTCL representative intimated regarding emergency outages of Gwalior-Malanpur-

II on 07.03.2013, red hot was observed in Y–ph CT.

2. PGCIL representative intimated regarding emergency outages of Kawas-Dastan-II on

22.03.2013-Jumper was opened at location 73. He further intimated regarding

emergency outages of CGPL-LIMDI-I on 23.03.2013, hot spot observed in Y & B

phase insulator at 541st location.

3. GETCO representative intimated regarding emergency outages of Nasik-Navsari-II- at

location 60, insulator defect were observed.

The Sub-Committee agreed to above emergency outages.

8.7.2 UPDATING OF THE OPERATING PROCEDURE OF WESTERN REGION.

GM, WRLDC explained that the Operating Procedure of Western Region is due for updating

by May 2013. The Operating procedure needs to be updated annually in view of the change in

regulatory matters from time to time and change in operational strategy with respect to the

changing power system scenarios. The existing operating procedure is available on WRLDC

website at the following link.

http://wrldc.com/docs/WR_OPERATING_PROCEDURE_2012.pdf

Constituents were requested to submit their comments by next OCC meeting.

The Sub-Committee noted.

8.7.3 OVER LOADING ON WARDHA –PARLI D/C: In view of increased demand of Maharashtra (all time maximum demand of 17165 MW

occurred on 25-03-2013 at 11:00hrs) and synchronization of new generating units in the nearby

area (Mouda, Tiroda and IEPL) the loading on 400 KV Wardha- Parli D/c remained on the

higher side (in range of 600-650 MW) most of the time during March. This also caused low

voltage condition at Sholapur (PG) on several instances.

GM, WRLDC intimated that it is not only the matter of over loading of Wardha-Parli D/C but

Wardha flow gate is a matter of concern.

CE, (SLDC) MSETCL informed that Wardha –Chandrapur line is ready but bays are notready.

Line will be commissioned within two month which may help for power evacuation from


Wardha outlets. He further informed that the Tiroda power will be flowing through Tiroda-

Warora-Chandrapur-Parli.

He further intimated that severity of above loading is more due to outage of units at RGPPL,

JSW & Parli.

RGPPL representative intimated that RGPPL units are running now as on contingency measure

as gas is made available but no future commitment could be given by them.

WRLDC was requested to be more vigilant about violation of Wardha-flow gate margin. It was also requested that Wardha-flow gate margin decision should be in consultation with MSETCL/PGCIL.

8.7.4 BLACKSTART :

Total 11 stations of MP, Chhattisgarh and Maharashtra have completed the Blackstart Mockdrill.

GETCO has intimated successful Mockdrill at Kadana Hydro in March’13. All constituents are

requested to give their confirmed blackstart Mockdrill schedule, so that the exercise shall be completed

by the end of April, 2013.


8.7.5 RGMO OPERATION

As per IEGC 5.2 (f) as modified from time to time, WRLDC is monitoring the status of RGMO

implementation in WR. The utility wise status will be presented in OCC meeting.


8.7.6 OCCURRENCE AT PARLI (MSETCL) At 18:04hrs, on 03-03-13, while opening C’pur-Parli-III on high voltage the C’pur- I, II and

III, Parli-Parli(PG)-II, Parli-Lonikhand-I, Parli ICTs –I & II, Parli-Solapur feeders tripped. The

disturbance could be discussed in detail in the ensuing Protection Committee meeting.

However operational difficulties faced due to the disturbance needs discussion for formulating

remedial action plan. These trippings left Parli(MSETCL) with only one source i.e, Parli(PG) –

Parli(MSETCL) –I which was carrying 900MW. Heavy oscillations observed all over NEW

grid.

To control the high voltage problem on AC system flow on C’pur-Padghe (600MW at the time

of event) could have been reduced first before attempting to open C’pur-Parli line.

GM, WRLDC deliberate the incidence as follows:


1. Bus Fault was due to B-Phase Breaker Blast at Parli of Parli-Chandrapur III on

03.03.2013 at 18:04 Hrs.

2. High voltages prevailed before the event.

3. 400 kV C’pur-Parli-III opened to control voltages from C’pur end.

4. The B-ph breaker blasted at Parli end

5. The fault was fed for a considerable time(around 7 second)

6. The following feeders tripped:

• 400 kV C’pur-Parli-I,II and III

• 400 kV Parli-Parli(PGCIL)-II

• 400 kV Parli-Lonikhand-I

• 400/220 kV Parli ICTs-I&II

Status after the event:

• Parli(MSETCL) was left with only one incoming source i.e., 400 kV Parli-

Parli(PGCIL)-I and outgoing feeders of Lonikhand-II and Parli ICT-III.

• Sholapur and down network was fed from Parli(PG)

• Flow reversed on 400 kV C’pur-B’wati and flow on 400 kV B’wati-Parli(PG)

increased.

• Load trimming scheme at Parli operated to control loading on lone survived ICT-3;

relief: 90MW(approx). No load loss(except for above); No Gen loss

OBSERVATIONS:

1. Heavy oscillations were observed all over NEW grid, due to delay in clearance of

fault beyond 7sec.

2. Machines of NR were oscillating in opposite phase with WR machines.

3. Opening of lines at high voltages >425kV may be avoided. One end opening causes

further rise in voltage at other end, other trunk lines trip. In this case Parli-C’pur-II

tripped on O/V at Parli end.(The line was on healthy bus, but tripped on O/V).

4. Flow on C’pur-Padghe was 600MW,which should have been reduced first to

control voltages.

5. Over voltage settings are to be rechecked and deployment of STAND ALONE o/v

relay shall be explored.

GETCO representative shared over voltage problem and its control in Kutch area. He informed

that they scattered agriculture load which are generally inductive. Also they kept off the

capacitor bank at transmission level during high voltage conditions.


Decisions:

After discussion Sub-committee suggested the following points:

1. Necessity of dedicated high puncture to drop off ratio overvoltage relay to control the

over voltages.

2. The opening of line should start above the 420 kV level, also the voltage rising trends

shall be considered.

3. Gas stations in Western Part like RGPPL and Jaigad generation should pick up.

4. Committee requested RGPPL to give status of gas contractual agreement.

5. Practice followed by GETCO in Kutch area could be followed. The Sub- Committee noted as above.

8.7.7 SUGEN-VAPI TRIPPING:

At 21:04 hrs on 06-03-13, Sugen-Vapi line tripped on B-ph to Earth fault. The line was carrying about

720MW. Subsequently, In Gujarat system Vapi (Guj)-Vapi(PG), Vapi-Tarapur, Vapi(Guj)-Bhilad,

Navsari-Bhilad lines tripped on over load. Thus, Bhilad loads and DD&DNH loads are connected to

Maharashtra system radially. This resulted in diversion of power from Gujarat to Maharashtra through

SSP-Dhule-BBLSR-Padghe-Boisar-Vapi(PG). The voltage at Vapi reduced to 368 kV from 385 kV.

The flows on Dhule-BBLSR D/C were 575MW each and Flow on BBLSR-Padghe D/C were 675MW

each.

The observations are

1. The line flows must be close to stability values or such that the end voltages must be

above 395kV. The current on Sugen-vapi prior to tripping is approx. 1080Amp close to

thermal loading.

2. The generation in Gujarat shall be b/d whenever there is such a case that part (Vapi S/s)

of Gujarat/DD/DNH is completely fed from Maharashtra. Similar case happened on 8th

April, 2012 when several 220kV lines tripped in South Gujarat due to fog.

3. Despite commissioning of Navsari-Vapi D/C, the flow on Sugen-Vapi on many

occasions has been at 600MW. At present TAPS-3 is under S/D for 2 months, TAPS-

1&2 are under S/D. U-1 is expected shortly, but U-2 is expected after 2months. Hence,

the flow on Sugen-Vapi tends to be high, both Gujarat and Maharshtra shall take

necessary steps to keep the flow on Sugen-Vapi-Boisar and voltage at Vapi at safe

levels.

TAPS representative intimated that overloading in this corridor was due to outages of TAPS

units.

The Sub-committee noted.


8.7.8: DEMAND ESTIMATION FOR OPERATIONAL PURPOSES

IEGC clause 5.3

(e) “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 1.1.2011 to

facilitate on-line estimation of demand for daily operational use for each 15 minutes block.

(f) The monthly estimated demand by the SLDC shall be provided to RLDC and RPC for better

operation planning

(h) In order to facilitate estimation of Total Transfer Capability /Available Transfer Capability on three

month ahead basis , the SLDC shall furnish estimated demand and availability data to RLDCs

Constituents were requested to furnish details regarding online estimation for implementation

of Demand estimation for operational Purposes.


8.7.9: DEFERMENT OF APPROVED OUTAGE

It has been observed that the outage of following lines have been deferred at last minute after TTC/ATC revision ( by 400 MW) uploaded in the NLDC/RLDC website.

1. 400 kV Bhilai – Koradi S/C on 13th/14th March,2013

2. 400 kV Raipur – Bhilai and Raipur – Bhadravati on 21st March, 2013.

On account of these outages, market splitting occurred due to reduced margins (reduction of TTC/ATC

by 400 MW) in the interregional corridors. Since PX transactions cannot be reversed, deferment of

planned outages which requires revision of TTC/ATC should be avoided as far as possible and in case

of deferment the plan need to be intimated to RLDC at least by 12:00 hrs of the previous day so that

margin in ATC/TTC could be released in time.

WRTS-I(PGCIL) submitted the reasons for postponement of outage as follows:

1) The concurrence for the outage on the above line was received on 20.03.13 A.N.

However while insulator hoisting for the tower No. 27/0 middle cross arm of Ckt 2 got

damaged , which required replacement. Due to non availability of spare cross arm, it was not

possible to continue with the outage as scheduled for 21.03.13 . The same was replaced /

rectified on 23.03.13 . As such the outage of the line was deferred for 25.03.13 which was

granted on 28.03.13 .


2) Similarly outage on 400KV Bhilai - Koradi S/C was approved on 11th and 12th March 2013,

but same was not permitted by WRLDC due to up gradation of Bina-Gwalior-Agra link on

765KV.


8.7.10: CONTROL OF O/V THROUGH OPENING OF LINES

On 27.03.2013 Sholapur (Lamboti) substation undergone complete loss of supply causing load

loss of 300 MW (approx.) after tripping of 400KV Parli-Sholapur s/c on high voltage at 17:49 hrs. since

the only other 400 KV line i.e 400 KV Sholapur-Sholapur Line was out on high voltage from 12:24 hrs.

Hence opening of line for high voltage control in Sholapur area may be reviewed.


Thereafter Member Secretary, WRPC requested to SE(Prot), WRPC to take up the regular agenda items.

SE(Prot), WRPC then took the agenda items in seriatim.

ITEM No. 1: CONFIRMATION OF THE MINUTES

SE(Prot), WRPC stated that Minutes of 445th meeting of Operation & Coordination Sub-

Committee of WRPC held on 12th March 2013 at MSEDCL, Mumbai were forwarded vide letter

No. WRPC/OPN/OCC-Minutes/2012-13/3181 dated 21.03.2013.

No comments have been received.

Minutes of 445th OCCM were confirmed without any modifications. ITEM No.2: REVIEW OF SYSTEM OPERATION DURING THE MONTH OF

MARCH 2013 S.E. (Prot), WRPC requested WRLDC to brief the Committee on Grid Operation during

March 2013.

Deputy Manager, WRLDC in the presentation concentrated broadly on the performance of the grid for month of March as below:

Frequency Particulars

During March 2013 the system frequency was below 49.7 Hz for 1.02 % of time against

1.31 % of time during February 2013. The system frequency was within the IEGC range of

49.7Hz -50.2 Hz for 87.43 % of the time against 78.76 % of time during February 2013. The


average monthly frequency was 50.04 Hz during March 2013 and in February 2013 it was 50.07

Hz. Regarding operation in high frequency range, frequency during the month of March 2013

was above 50.20 Hz for 11.55 % of time against 19.93 % of time during February 2013.

The detailed frequency particulars are enclosed at Annex- 2.1.

The Sub-Committee noted the detailed frequency particulars.

2.1 Operational Discipline

Inter-regional exchanges status:

• WR-ER Link : Total export of 246 MUs to ER against export schedule of 382 Mus. Maximum overdrawal by ER was 11.63 MUs on 19th Mar,2013.

• WR–NR Link : Maximum Overdrawal by NR was 6.83 MUs on 13th Mar,2013. Total export of 871 MUs to NR against export schedule of 1054 Mus.

• WR–SR Link : Export of 631 MUs against export schedule of 717 Mus.

Total WR net export in the month of March’13 was 1257 MUs against net export schedule of 1389 MUs (February’13 was 1446 MUs against net export schedule of 1535 Mus.)

Operational messages (A/B/C) issued to WR constituents during the month of March 2013 were as below:

TYPE-A TYPE-B TYPE-C TOTAL GETCO 1 0 0 1 MPPTCL 0 0 0 0 MSETCL 5 0 0 5 CSPTCL 5 0 0 5 GOA 0 0 0 0 TOTAL 11 0 0 11

TTC MESSAGES issued to Regional Entities of WR during March 2013 was as below: CONSTITUENT CSPTCL GETCO MPPTCL MSETCL NTPC TOTAL NO. of TTC MSGs

NIL NIL NIL NIL NIL NIL


There have been overdrawl/TTC violations by the other regions. Messages issued to NR/ER for over drawl & TTC violation during March 2013 were as below:- The Sub-Committee noted as above.

2.3 Voltage Profile

As per the data received from WRLDC, Voltage profile at some of 765/400 kV sub-stations

during the month of March 2013 as furnished by WRLDC is enclosed at Annex-2.3. He stated that

voltages beyond the stipulated limits in IEGC were observed at certain S/S, the deviations of

voltages from the accepted limit on either side were recorded at the following locations in WR grid

which were noted by Committee:-

S.No. 765/400kV Sub-station

Max. Voltage

observed (kV)

Date of incidence

Min. voltage

observed (kV)

Date of incidence

1 Indore 424 17,27.03.13 0 -

2 Itarsi 428 18.03.13 * -

3 Karad 440 27.03.13 * -

4 Dhule 437 28.03.13 * -

5 Bhilai 430 16,17.03.13 * -

6 Jetpur 424 27.03.13 *

7 Nagda 428 16.03.13 * -

8 Khandwa 432 24,25.03.13 * -

9 Seoni 802 12.03.13 * -

* - Minimum voltages were above the permissible limits. The Sub-Committee noted as above. 2.4 U/F Relay Operations

As per WRLDC records during March 2013 the system frequency didn’t touched 48.8 Hz. The details of UFR status received from constituents for the month of March 2013 is enclosed at Annexure 2.4.

The Committee noted the above.

LINK NR ER TOTALNo of O/D Messages NIL NIL NIL No of TTC Messages NIL NIL NIL


2.5 Power Cuts / Load Restrictions

The committee noted the details of Power Cuts and Regulatory Measures during March 2013 as furnished by the state utilities as per the enclosed Annex.2.5.

2.6 Details of Generating Units under Forced outages

Details of generating units under forced outages during March 2013 were discussed. The modified details of force outages programme of Generating units are given in Annex-2.6.

2.7 Details of Generating Units under Planned outages

The status of planned outage is modified as per intimation by concern members. The modified details of generating units under Planned Outages during March 2013 are given in Annex-2.7.

The Sub-Committee discussed and finalized the planned outages.

ITEM No.3: OPERATIONAL PLANNING 3.1 Proposed outage programme of generating units

The maintenance programme of generating units for April 2013 & May 2013 was discussed. The Sub-Committee finalized the outage schedule of generating units for the above

period and the modified outages plan is placed at Annex 3.1.

3.2 A. Outage Programme of Transmission Lines/elements

3.2.1 A pre-OCC meeting was held on 11.03.2013 at WRLDC for better planning of the

transmission lines/elements outages during the month of May 2013. SE (Prot), WRPC

informed that in line with the last OCC decision, this OCC will discuss outages for the month

of May 2013.

SE(Prot), WRPC informed that for the 447th OCC transmission elements outages planning

data, must be submitted on or before 03.05.2013.

He thanked the constituent’s and WRLDC support for planning and informed the pre OCC

meeting lasted for about 4 hours of discussion.

• 3.2.2 The Committee discussed the maintenance Programme for transmission

lines/elements for the months of May 2013.

The Sub-Committee accordingly finalized the maintenance programme as given at Annex 3.2.


B. Line outages planned vs. implemented:

The status of lines planned vs. lines availed and any deviation from planning or emergency

outages for the concerned month shall be submitted by WRLDC for discussion in respective

OCC. Accordingly in the next OCC, WRLDC shall furnish the Status of complete list of line

outages during the month of April 2013 planned vis-à-vis implemented.

Constituents were requested to give a note on emergency outages availed with reasons.

3.3 Anticipated Power Supply Position for the months – April 2013 & May- 2013 Anticipated Power Supply Position for the months of April 2013 & May 2013 were discussed. The

details of anticipated regional deficit are given below:

(All figures in MW) State/ Region

April 2013 May 2013 Anticipated Availability

Anticipated Peak Demand

Shortage Anticipated Availability

Anticipated Peak Demand

Shortage

GETCO 10537 10840 303 11812 12140 328

MPPTCL 7117 7780 663 7276 8050 774

CSEB 2799 3065 266 2899 3225 326

MSETCL 16725 18200 1475 16769 18360 1591

GOA 374 425 51 383 435 52

DD 290 335 45 294 340 46

DNH 613 635 22 609 625 16

WR 38515 40900 2385 37483 39970 2487

Details of anticipated restricted & un-restricted demands for the months of April 2013 & May 2013 are given in Annex 3.3 (A).

The details for anticipated station wise Availability & Energy for the months of April 2013 & May 2013 as furnished by the constituents is given at Annex. 3.3(B). The Sub-Committee noted as above. ITEM No. 4: OPERATIONAL STATISTICS FOR THE MONTH OF MARCH 2013 The details of schedule Vs actual generation, demand, drawl of power from grid; exchanges etc. are given in the following Annexure: Annex 4.1 - Schedule Vs Actual Generation and Requirement for March 2013


Annex 4.2 - Peak Demand: Schedule Vs Actual for March 2013

Annex 4.3 - Integrated Operation of the System & Operation of Inter State Tie lines for March 2013

Annex 4.5- Details of Declared Capacity, Schedules and Injections from Central sector

Stations, Drawl Schedules and Entitlements of constituents during March 2013

Annex 4.6 - Inter System Exchanges for March 2013

Annex 4.7- Details of level of Major Reservoirs in Western Region for March 2013

Annex 4.8a- Month-wise loss of generation due to non-utilization of high cost of Naphtha fuel.

Annex 4.8b -Month-wise loss of generation due to shortage of coal and gas fuels.

The sub-Committee noted as above

ITEM No. 5: SYSTEM DISTURBANCE IN WESTERN REGION

There was no major grid disturbance in the Western Region during the month. The

consolidated list of other grid disturbances as furnished by WRLDC is attached at Annexure- 5.

The Sub-Committee noted as above.

ITEM No. 6. Confirmation of Healthiness status of SERs/DRs equipment in the system. Constituents have furnished the status of healthiness of SER/DRs in their systems on

the dates below:- Sl No.

Name of constituents Date of Receipt

1 WRTS-I 04.04.20132 WRTS-II 04.04.2013 3 MPPTCL 10.04.2013 4 NTPC 05.04.2013 5 CSPTCL 04.04.2013 6 GETCO 05.04.2013 7 MSETCL 10.04.2013

Constituents of WR were requested to continue sending the information as per the

recommendation of enquiry committee of Grid disturbances on 25.02.2007 and 28.02.2007.

The Sub-Committee noted as above. ITEM No. 7: STATUS OF COMPLETION OF ONGOING SCHEMES FOR COMMISSIONING OF REACTORS, TRANSMISSION LINES AND GENERATING UNITS IN WR.

7.1 Status of completion of ongoing Schemes for Commissioning of reactors.

As discussed in 445th OCCM and as per the present status available on the work for providing

additional reactors at the various locations in WR.

Accordingly the information regarding the commissioning schedule is as below:


S. No. 400 kV Sub/stn.

Size (MVAR)

Implementing agency

Expected commissioning date

1 Jabalpur 125 MVAR PGCIL June 2014 2 Khandwa 125 MVAR PGCIL June 2014 3 Shujalpur 125 MVAR PGCIL June 2014 4 Bhatapara 125 MVAR PGCIL June 2014 5 Raigarh 125 MVAR PGCIL June 2014 6 Aurangabad 125 MVAR PGCIL June 2014 7 Ranchodpura 125 MVAR GETCO June 2013 8 Varsana 125 MVAR GETCO June 2013 9 Rajkot 125 MVAR GETCO June 2013 10 Amreli 125 MVAR GETCO June 2013 11 Tamnar

Raigarh 1x125 JPL Synchronised on 04.12.2012

Further, 17 nos. of additional bus reactors were approved in the 34th Standing Committee Meeting held on 9th May 2012. S. No. 400 kV

Sub/stn. Size (MVAR) Implementing

agency Expected commissioning date

1 Nanded 125 MVAR MSETCL 2014 2 Sholapur 125 MVAR MSETCL To be Shifted from Itarsi 3 Kolhapur 125 MVAR MSETCL 2014 4 Akola 125 MVAR MSETCL 2014 5 Jetpur 63 MVAR GETCO June 2013 6 Zerda 125 MVAR GETCO June 2013 7 Limbdi

(Chornia) 125 MVAR GETCO June 2013

8 Nagda 125 MVAR MPPTCL September 2014 9 Bhopal 80 MVAR MPPTCL March 2014 10 Damoh 125 MVAR PGCIL August 2014 11 Bachau 125 MVAR PGCIL August 2014 12 Pirana 125 MVAR PGCIL August 2014 13 Itarsi 2X125 MVAR PGCIL August 2014 14 Seoni 125 MVAR PGCIL August 2014 15 Parli 125 MVAR PGCIL August 2014 16 Raipur 125 MVAR PGCIL August 2014 17 Gwalior 125 MVAR PGCIL August 2014

The respective utilities were requested that the reactors are installed and commissioned according to the schedule agreed as above.


7.2 Status of completion of ongoing Transmission Schemes being executed/implemented by POWERGRID/ Other Agencies The updated status on various ongoing transmission schemes for the current year as per the current information available is as follows: -

S. No.

Name of the Line Target Completion Date

Remarks

POWERGRID 1 400 kV Raipur(PG)-Wardha(PG) D/C Commissioned

on 31.12.2012 2 400 kV Vapi(PG)-Navsari Commissioned

on 16.03.2013 400 kV Navsari - Navi Mumbai D/C Line June 2013 3 400 kV D/C Mundra- Jetpur line Commissioned

on 31.12.2012 4 400kV D/C Vindhyachal-IV - Vindhyachal Pooling Station line (Q) 30.12.2012 5 765kV S/C Vindhyachal Pooling Station - Satna line (Ckt-I) Commissioned

on 30.12.2012 6 765kV S/C Vindhyachal Pooling Station - Satna line

(234km+12km D/C Portion)Ckt-II Commissioned

on 30.12.2012 7 765kV S/C Satna-Gwalior line (Ckt.-I) May - 2013 8 765kV S/C Satna-Gwalior line (359Km + 60Km D/C

Portion) Ckt.-II June - 2013

9 765 kV S/C Satna-Bina line-II Commissioned on 30.06.12 & date of commercial operation on 01.07.2012

10 400 kV D/C Bina-Bina (MPPTCL) line Ckt 3 & 4 Commissioned on 27.02.13

11 765 kV Sasan-Satna-I Commissioned on 12.01.13

12 765 kV Sasan-Satna-II April 2013 GUJARAT 1 400kV D/C Ukai-Kosamba line Commissioned on

29.03.13

2 400 kV D/C Kosamba-Chorania line (Package I)(From Chorania S/S to AP-54)

June-2013

3 400 kV D/C Kosamba-Chorania line (Package II)(From Kosamba S/S to AP-54)

June - 2013

4 400 kV D/C Mundra-Zerda line No. 1 June-2013 5 400 kV D/C Mundra-Zerda line No. 2 June - 2013 6 400 kV D/C Vadinar-Amreli line June-2013 7 400kV Mundra-Hadala LILO to Halvad June – 2013 8 400 kV D/C Amreli-Kasor line(Part-1) June – 2013 MADHYA PRADESH 1 Malwa-TPH-Pithampur 400KV DCDS Line Sept - 2013 2 Malwa TPH-Chhegaon 400 KV DCDS Line March - 2014 3 Chhegaon-Julwania 400 KV DCDS Line March - 2014 4 Pithampur- Indore 400KV DCDS Line April 2013 5 Malwa TPH-Chhegaon 220KV DCDS Line March - 2013 6 Satpura TPH-Ashta 400KV DCDS Line September - 2014


CSPTCL 1 LILO of 400 kV Korba (W)-Bhilai at Raipur DCDS

LILo at Raita Commissioned on

03.08.2012

2 400 kV Korba (W)-Khedamara DCDS Ckt I

Commissioned on 30.03.2013

400 kV Korba (W)-Khedamara DCDS Ckt II LILOed at Marwa

June 2013

3 400 kV Khedamara- Raita DCDS June-2013 4 400kV DCDS Marwa-Raipur(Raita) June-2013 5 LILOof 400kV K(W)-Khedamara line at Marwa (one ckt.) June-2013 MAHARASHTRA(STU)

1 400KV Chandrapur- II- Warora D/C May-2013 2 400KV Warora- Wardha PGCIL Commissioned on 15.05.2012 3 400KV D/C line from Koradi-II to Wardha S/S(PG)

D/C June-2013

4 400 KV S/C line from 400 KV New Khaperkheda – 400 KV Koradi

Commissioned on 14.09.2012

5 400 kV Koradi-Akola LILO at Nangaon (India Bull) Commissioned on 02.10.2012 6 Koradi–Nangaon- Akola LILOed at Koradi-II Commissioned on 22.03.13 MAHARASHTRA (IPTC route) by WRTransmission (Mah) Pvt. Ltd

1 400 kV Parli(PG)-Pune D/C May-2013 2 400 kV Pune (PG)-Aurangabad (MSETCL) D/C May -2013 3 400 kV Solapur(PG) –Kolhapur (MSETCL)D/C Commissioned on

30.06.2012 4 LILO Lonikhand –Kalwa at Puna(PG) April-2013 GUJARAT (IPTC route) by WR Transmission (Guj) Pvt. Ltd 1 400 kV Rajgarh(PG)-Karamsad (GETCO) D/C May-2013

Reliance transmission representative informed that following lines are getting delayed due to

severe ROW problems in Khed & Maval Talukas in Pune Dist. & Ambejogai Taluka in Beed

Dist.

1) 400 KV,D/C,Parli-Pune line.

2) 400 KV,D/C,Pune-Aurangabad line.

3) 400 KV,D/C LILO of Lonikand-Kalwa line at Pune.



7.3 Commissioning of new Generating units in Western Region and the capacity expected to be commissioned during the year 2012-13 The status regarding Generating units, commissioned /expected to be commissioned during the current year 2012-13 according the available information is as below:

Name of the Power Projects Unit No. Capacity (MW)

Date of Commissioning /Schedule Date

GUJARAT Ukkai TPS Extn. 6 500 Commissioned on 01.10.2012 Pipavav CCPP- GPCL & GSPC joint venture Block-1 350 October 2013

Block-2 350 Synchronized on 13.03.2013

Mundra(CGPL) 10 800 07.03.12(COD), 08.01.12(SOD)

20 800 30.07.12(COD) 10.07.12(SOD)

30 800 27.10.12(COD) 06.10.12(SOD)

40 800 21.01.13(COD) 28.12.12(SOD)

50 800 04.03.13(SOD)

22.03.13(COD)

Bhavnagar Lignite TPP-JV I 250 Dec 2013

II 250 Dec 2013

CHHATTISGARH

Korba West-III TPP(Unit 5) 1 500 Synchronized on 18.03.2013

MADHYA PRADESH

Satpura TPS Extn. 10 250 26.02.2013

• On 01/04/12, NTPC Sipat stage I unit # 3(660 MW) sync at 23:54 hrs

• On 03/04/12, ESSAR(VADINAR)#2 (600MW) SYNC AT 14:29 HRS

• On 08/04/12, NTPC Mouda #1 (500MW) sync at 01:47 hrs.

• On 25/05/12, NTPC Sipat stage I unit # 2(660 MW) sync at 00:00 hrs

• APL Tiroda (660 MW) Synchronized on 23.09.2012.

• APL Tirora-II(660MW), COD on 30.03.2013

• Gupta Engg pvt ltd (60MW) at Chandrapur synchronized on 17.09.2012.

• VIPL –I (300 MW) COD on 05.04.13.

• Uno Sugen (382.5 MW) COD on 04.04.2013.


• Bela TPP(IEPL) 270 MW commissioned on 20.03.2013.

• Essar power Mahan TPP(600MW) commissioned on 24.02.2013.

• Amravati TPP unit-1(India Bull 270MW) commissioned on 25.03.2013.

The Sub-Committee noted as above. ITEM NO. 8: MISCELLANEOUS OPERATIONAL ITEMS

Item No 8 has been covered in opening remarks.

The Sub-Committee noted as above. ANY OTHER ITEMS: 9.1 Startup power for KAPS under Station Blackout (SBO) condition:

A detailed proposal for extending power supply to KAPS(NPCIL) from Ukai

hydro station via 220KV Ukai Mota line-1 in case of grid black out

condition was submitted to OCC forum by KAPS in the 445th OCC meeting

held on 11th and 12th March 2013. WRPC intimated that concerned

constituents may go through the proposal and revert in next OCCM.

NPCIL representative intimated that there was a meeting held between KAPS and UKAI

TPS/Hydro power station officials on 24/03/2013 at KAPS for working out the

possible arrangement for direct power supply at KAPS switchyard from UKAI

hydro through UKAI TPS switchyard during Grid failure. UKAI TPS/Hydro

power station officials agreed to this proposal. The outcome of the meeting is enclosed at

Annexure-9.1

GETCO representatives have consented for supplying

power to KAPS required for operating safety related and

core cooling related equipments within 30 minutes from Ukai Hydro

station via Ukai thermal through 220KV Ukai-Mota line 1 or through 66 KV

Vyara substation in case of unavailability of 220KV Ukai -Mota line-1.

OCC agreed to the procedure given by KAPS regarding extending power supply to KAPS from Ukai Hydro station in case of Grid blackout condition.



9.2 Staggered Scheduling of Kawas & Gandhar:

AGM, NTPC gave a presentation on staggered scheduling of Kawas & Gandhar. He proposed

Staggering of daily Energy requirement by Beneficiaries. The detailed proposal is enclosed at

Annexure -9.2.

Further he requested beneficiaries to go through the proposals and revert back at the earliest.

The Sub-committee noted as above.

ITEM NO. 9: DATE AND VENUE OF NEXT OCC MEETING

It is proposed to hold 447th meeting of Operation and Coordination Committee of

WRPC on 17th May (Friday) 2013 at REMI, Reliance Infrastructure Ltd. Mumbai preceded by

Pre OCC on 16th May(Thursday) at WRLDC, Mumbai.

*****************

Sl.No. Organisation & Name E-mail Mobile No.

I WRPC

1 Shri S.D. Taksande [email protected] 9820878384

2 Shri M.M. Dhakate se(p)[email protected] 8108787778

3 Shri L.K.S. Rathore [email protected] 9833371844

4 Shri Shiva Suman [email protected] 9869910968

II MSETCL / MSEDCL/MahaGenco

5 Shri Sanjay Shinde [email protected] 9920446665

6 Shri Vasant D. Pande [email protected] 9820741941

7 Shri A.V. Pachori [email protected] 9619461420

III MPPTCL

8 Shri K.K. Parbhakar [email protected] 9425805267

IV CSPTCL / CSPGCL

9 Shri H.S. Rajput [email protected] 94255-43156

V GETCO / GVCL

10 Shri H.A. Hadwani [email protected] 9925209635

11 Shri B.M. Shah [email protected] 9925212836

VI WRLDC / POWERGRID

12 Shri P. Pentayya [email protected] 9869072437

13 Shri V.K. Shrivastava [email protected] 9869072437

14 Smt. Jyoti Shukla [email protected] 9869082852

15 Shri Aditya P. Das [email protected] 9869404569

16 Shri Mahesh Tewari [email protected] 9429198133

17 Shri Vaibhav Bhandarkar [email protected] 9.4223E+10

VII GOA ELECT. DEPT.

18 Shri Sudan Kuncolienkar [email protected] 8380015062

VIII NTPC

LIST OF PARTICIPANTS OF 446th OCC MEETING OF WRPC HELD ON 10.04.2013 AT N.T.P.C., MUMBAI

19 Shri Hari Nath [email protected] 9004497133

20 Shri E.P. Rao [email protected] 9004497144

21 Miss. Anita Keshkar [email protected] 9004497105

22 Shri Oswald Menezes [email protected] 9425224940

23 Shri D.B. Adhikary [email protected] 9426740053

24 Shri A.K. Chandeliya [email protected] 9004497151

IX TATA Power

25 Shri P.R. Gadave [email protected] 9223553341

X APL

26 Shri C.S. Bobade [email protected] 8980802255

27 Shri Prasanna Kumar [email protected] 9687660774

XI Torrent Power

28 Shri B.V. Patel [email protected] 9925551755

29 Shri P.C. Shah [email protected] 9227206808

XII RGPPL

30 Shri Chinmoy Mallick [email protected] 9920491490

XIII RINFRA

31 Shri S.G. Zirpe [email protected] 9325119741

32 Shri Vijay Chavan [email protected] 9322617630

XIV NPCIL

33 Shri R.K. Saraogi [email protected] 9428821915

34 Shri S. Maskey [email protected] 9423982766

35 Shri B.K. Ghosh [email protected] 9423982734

XV CGPL

36 Shri R.M. Sankhe rmsankhe @tatapower.com 9099006541

piScama xaoi~ya Baar p`oYaNa kond` mauumba[- ूणाली ूचालन-ISO-I

संल नकAnnex-2.6 Power System Operation Corporation Ltd. (A wholly owned subsidiary company of POWERGRID)

Western Regional Load Despatch Centre, Mumbai Details of forced unit outages during the month of Mar.2013

अन ुबमांक Sl.No

यिुनट Unit

सघंटक Constituent/IPP

मता मेगावॉटCap.MW

सo From

समय दनांक

सo From


कारण Reason

Time Date Date

1. उतरण ःटेज UtranStg II-1

गुजरातGujarat 375 14:38 10-Nov-12 अनपुल धStill out

अनपुल ध Still out

GT tripped(Cooling system problem)

2. एपीएल APL-1

गुजरातGujarat 660 17:05 31-Jan-13 4:47 6-Mar-13 Line Constrain


गुजरातGujarat 660 19:30 2-Mar-13 4:15 10-Mar-13 BTL

4. एपीएल SLPP-I

गुजरातGujarat 125 14:30 3-Mar-13 NA 12-Mar-13 BTL


गुजरातGujarat 330 12:49 4-Mar-13 04.04.13 Turbine Vibration

6. एःसार

Essar(Vadinar)-2

गुजरातGujarat 600 16:12 9-Mar-13 14:31 19-Mar-13 Coal Feeding Problem.


गुजरातGujarat 660 3:34 13-Mar-13 19:16 24-Mar-13 Burner temperature high 8. आरजीपीपीएल

RGPPL-1A महारा /Maharasht

ra 320 16:27 2-Nov-12 अनपुल ध

Still out अनपुल ध Still out

Gas shortage

9. आरजीपीपीएल RGPPL-3A

महारा /Maharashtra

210 21:23 3-Dec-12 10:22 30-Mar-13 Less Requisition

10. आरजीपीपीएल RGPPL-2B

महारा Maharashtra

320 13:29 3-Jan-13 अनपुल धStill out


Fuel shortage

11. पल PARLI-6


210 19:49 26-Jan-13 अनपुल धStill out


Water shortage

12. पल ParlI-3


210 23:51 13-Feb-13 अनपुल धStill out


Water supply problem

13. पल Parli-5




Water shortage

14. पल Parli-7




Water shortage

15. आरजीपीपीएल RGPPL-3B


320 23:04 21-Feb-13 16:37 2-Apr-13 Fuel shortage

16. उरण Uran-8


108 13:57 22-Feb-13 11:23 11-Mar-13 Gas shortage

17. भसुावल BHUSAWAL-3


210 4:15 5-Mar-13 14:21 8-Mar-13 BTL

18. चंिपुर C'PUR-6


210 22:28 5-Mar-13 17:00 9-Mar-13 BTL


19. डब यूपीसीएल WPCL-4


135 7:10 6-Mar-13 अनपुल धStill out


ID fan problem

20. कोराड KORADI-6


210 13:41 8-Mar-13 8:36 12-Mar-13 BTL



500 18:22 8-Mar-13 2:30 22-Mar-13 Conductivity problem



500 21:26 10-Mar-13 09:25 15-mar-13 Control cable problem

23. एपीएमेल APML-2


660 9:31 11-Mar-13 04:16 22-Mar-13 BTL

24. जयगड Jaigad -3


300 2:27 15-Mar-13 6:20 18-Mar-13 Turbine problem.

25. नािसक Nasik-3


210 10:20 17-Mar-13 5:00 24-Mar-13 ID fan problem

26. चंिपरु Chandrapur-6


500 10:35 20-Mar-13 14:50 24-Mar-13 BTL

27. चंिपरु Chandrapur-2


210 22:43 21-Mar-13 21:19 24-Mar-13 CTL

28. भसुावल B'WAL-2


210 0:45 29-Nov-13 4:30 1-Apr-13 BTL

29. उरण URAN-4




Gas supply problem



108 11:44 29-Mar-13 7:02 2-Apr-13 Gas supply problem







33. भसुावलB'WAL-4


500 14:21 29-Mar-13 20:27 1-Apr-13 BTL

34. डब यूपीसीएलWPCL-1


135 0:10 30-Mar-13 8:05 3-Apr-13 Bottom ash problem

35. खापरखेड़ा K'KHEDA-5


500 17:23 30-Mar-13 12:56 2-Apr-13 Electrical Fault

36. एसजीट पीएस SGTPS-2

म यूदेश Madhya Pradesh

210 0:14 3-Mar-13 6:25 7-Mar-13 Hydrogen leakage

37. जेपी बना JP Bina-2

म यूदेश Madhya Pradesh

250 22:16 24-Mar-13 18:55 28-Mar-13 Turbine problem

38. कोरबापूव(DSPM) Korba(E) Extn-1

छतीसगढ Chhattisgarh

250 23:05 10-Feb-13 20.06.13 Turbine problem

39. एःसार महान Essar-Mahan

आइपीपी IPP



H/T After Testing

40. जीएमआर एमको GMR EMCO-1


300 1:29 27-Mar-13 2:32 2-Apr-13 Turbine steam leakage

41. जेपी बना JP BINA-2


250 16:35 30-Mar-13 22:03 2-Apr-13 Turbine Tripped


42. टॅ स TAPS-2

एनपीसी NPC

160 19:00 31-Dec-12 अनपुल धStill out


Refueling

43. टॅ स TAPS-1

एनपीसी NPC



Leakage in system

44. कावास kawas-1A

एनट पीसी NTPC

164 9:00 25-Feb-13 10:34 05-Mar-13 Less requisition

45. मौदा MOUDA-1


500 16:36 28-Feb-13 21:31 13-Mar-13 Generator Protection.

46. कावास KAWAS-1B


162 10:35 7-Mar-13 11:16 14-Mar-13 Less requisition

47. वीएसट पीएस VSTPS-11


500 14:27 6-Mar-13 18:01 15-Mar-13 ESP evacuation problem

48. गांधार

GANDHAR GT-1


218 6:11 13-Mar-13 1227 21-Mar-13 Less requisition

49. कावास KAWAS-2A



50. मौदा Mouda-1




11KV bus fault

51. कावास KAWAS-2A


164 9:00 21-Mar-13 17:30 24-Mar-13 Inspection

52. गांधार Gandhar-3



53. गांधार Gandhar-2


219 9:22 27-Mar-13 10:17 3-Apr-13 Less requisition

Note: Units out for more than 72 hrs are only included.


संल नकAnnex-2.7 Power System Operation Corporation Ltd. (A wholly owned subsidiary company of POWERGRID)

Western Regional Load DespatchCentre,Mumbai

Details of planned unit outages during the month of Mar.2013 अन ुबमांक Sl.No

यिुनट Unit

सघंटक Constituent/IPP

मता मेगावॉटCap.MW

सo From


सo From


कारण Reason

Time Date Time Date

1. एसट पीएस STPS-1

गुजरातGujarat 120 14:00 14-Jan-13 17.04.2013 Governor Problem 2. कोरबा पवू

Korba-East-6 छतीसगढ

Chhattisgarh 120 3:50 12-Oct-12 15.05.13 Air pre-heater problem/AOH

3. कोराड Koradi-5

महारा /Maharashtra 210 4:23 16-Sep-12 25.04.13 Stator replacement 4. टोरट पावर

Torrent Power गुजरात Gujarat 110 23:51 30-Nov-12 26.04.13 AOH

5. TAPS-3 एनपीसी NPC

540 22:30 30-Mar-13 2.06.2013 AOH

Annexure 3.1

(MW) sao From tk To sao From tk To

1gau}ivainaila GUVNL

1.1 DHUVRAN GAS 1 107 5.5.13 19.5.13 CI

2NIL

3Craiva]kMila CSPGCL

NIL

44.1 KORADI 7 210 01.05.13 15.06.13 COH4.2 KHAPERKHEDA 3 210 25.04.13 30.05.13 AOH

5 koMd``Iya xao~ Central Sector5.1 KORBA ( KSTPS ) 7 500 02.04.13 26.04.13 AOH+Boiler license renewal5.2 VINDHYACHAL 1 210 17.05.13 05.06.13 Boiler license renewal5.3 VINDHYACHAL 4 210 23.4.13 12.5.13 AOH5.4 KAWAS GT-IB 106 28.05.13 28.07.13 R & M WORK5.5 CGPL 20 830 16.04.13 28.04.13 Turbine control v/v pinning work

5.6 CGPL 40 830 02.05.13 14.05.13 Turbine control v/v pinning work & PG test preparation5.7 CGPL 30 830 16.05.13 28.05.13 Turbine control v/v pinning work5.8 CGPL 50 830 2.04.13 15.04.13 Turbine control v/v pinning work

maraiva]kMila MSPGCL

map`iva]kMila MPPGCL

DETAILS OF MAINTENANCE PROGRAM OF GENERATING UNITS PROPOSED DURING APRIL 2013 AND MAY 2013

S. No. Unit No. Capacity Outage as per Annual

Maintenance Plan Outage

Proposed/Availed Reason

Note: 1. All outages are subjected to real time conditions.

2. Codes: R‐Routine Maintence; C‐Construction; IR‐Interregional; Inf ‐ information;

3. * ‐ WRLDC may coordinate it in consultation with NLDC

Date Time Date Time

1 400/220 315 MVA XMER NO.II AT 400 KV S/S BHOPAL ICT 01.5.13 10.00 02.5.13 18.00 Daily Xmer body painting work MPPTCL MPPTCL

2 400 UNO SUGEN- Pirana (TPL) Line R 01.5.13 `0600 06.5.13 1900 Continuous Silicon coating on porcelain part of Switch Yard Equipment TPGL TPL

3 400 Sugen-Pirana-2 C 01.5.13 6:00 01.5.13 10:00 Daily For stringing work on 400 KV D/C Rajgarh-Karamshad TPGL WRTMPL

4 400 Jejuri-Lonikand R 02.5.13 9:00 02.5.13 17:00 Daily Q.M.work. MSETCL MSETCL

5 220 Damoh(PGCIL) - Tikamgarh Ckt R 02.5.13 8.00 02.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

6 400/220 315 MVA XMER NO.III AT 400 KV S/S NAGDA ICT 02.5.13 8.00 02.5.13 17.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

7 220 Bhilad - TAPS R 2.5.13 9:00 2.5.13 18:00 Daily Maintenance work GETCO GETCO

8 400 Mundra Jetpur#1 R 2.5.13 10:00 3.5.13 18:00 Continuous 422 Tariff CT (Y,B) Replacement PGCIL CGPL

9 400 Damoh-Bhopal#1&2 C 2.5.13 7:00 3.5.13 19:00 Daily Crossing of 765kV S/c Jabalpur-Bina

PGCIL WRTS-II

10 400 Vadavi - Dehgam (PG) - 1 R 3.5.13 8:00 3.5.13 18:00 Daily Maintenance work GETCO GETCO

11 220 Vapi - TAPS R 3.5.13 9:00 3.5.13 18:00 Daily Maintenance work GETCO GETCO

12 400 Kasor - SSP (Daily) R 3.5.13 8:00 4.5.13 18:00 Daily Maintenance work GETCO GETCO

13 400 Kharghar-Padgha R 03.5.13 9:00 03.5.13 17:00 Daily Q.M.work. MSETCL MSETCL

14 400 Jaigad-NewKoyna -II R 03.5.13 8:00 03.5.13 18:00 Daily Polymer Insulator replacement MSETCL MSETCL

15 400 Seoni- Khedamara, Bhilai R 3.5.13 8:00 3.5.13 17:00 Daily Routine Maintenance CSPTCL/mp CSPTCL

16 400 Jaigad-NewKoyna -I R 04.5.13 8:00 04.5.13 18:00 Daily Polymer Insulator replacement MSETCL MSETCL

17 400 Vadavi - Dehgam (PG) - 2 R 4.5.13 8:00 4.5.13 18:00 Daily Maintenance work GETCO GETCO

18 400 Mundra - Jetpur Ckt.2 R 4.5.13 9:00 4.5.13 18:00 Daily To attend line defects and Hot spots PGCIL WRTS-II

19 500 Pole # 1 at Bhadrawati HVDC 04.05.13 10:00 04.05.13 18:00 Daily Half yearly AMP Work WRTS-I WRTS-I

20 400 Jaigad-Karad -II R 05.5.13 8:00 05.5.13 18:00 Daily Polymer Insulator replacement MSETCL MSETCL

21 400 Vindyachal- Satna-2 R 05.5.13 9:00 06.5.13 18:00 Continuous Main Breaker Major Overhauiling Work For Dasmantling of Circuit

NTPC NTPC

22 220 Essar-Jhanoor C 05.05.2013 9:00 05.05.2013 17:00 Daily crossing of 400 kV DGEN - Navsari line Essar TEL

23 400 Jaigad-Karad -I R 06.5.13 8:00 06.5.13 18:00 Daily Polymer Insulator replacement & Q.M.work MSETCL MSETCL

24 400 Koyna Stg-4 - New Koyna-2 R 06.5.13 8:30 06.5.13 17:30 Daily Q.M.work MSETCL MSETCL

System AgencyType From

List of Transmission elements' outage approved in 446th OCCM

Annexure‐3.2

S. No. kV Line To

Basis Reason

25 220 Itarsi(PGCIL) - Itarsi R 06.5.13 9.00 06.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

26 220 Kawas-navsari 1 R 06.5.13 0800 06.5.13 1900 DailyFor Attending Hotspot and Routine maintenance

NTPC NTPC

27 400/220 315 MVA XMER NO.I AT 400 KV S/S NAGDA ICT 06.5.13 8.00 06.5.13 17.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

28 220 I'pore-Kawas-2 R 6.5.13 8:00 6.5.13 18:00 Daily Maintenance work GETCO/ntpc

GETCO

29 765/400 3 X 333 MVA ICT #1, Bina ICT 6.5.13 9:00 6.5.13 18:00 Daily AMP Power Grid WRTS-II

30 400/220 ICT # I at Raipur ICT 06.05.13 10:00 06.05.13 14.00 Daily AMP work WRTS-I WRTS-I

31 765 Satna-Bina#1 C 6.5.13 7:00 7.5.13 19:00 Daily Crossing of 765kV S/c Satna - Gwalior Ckt.1 and 765kV D/C

PGCIL WRTS-II

32 400 Itarsi-Indore # 2 R 7.5.13 9:00 7.5.13 18:00 Daily Rectificatoin borken earthwire and AMP of bay equipment PGCIL WRTS-II

33 220 I'pore-Kawas-1 R 7.5.13 8:00 7.5.13 18:00 Daily Maintenance work GETCO/ntpc

GETCO

34 400 Sipat-Raipur # 3 & Korba-Bhilai-# 1 C 07.05.13 8:00 08.05.13 18:00 ContinuousStringing work of 400 D/C GCEL-Durg PG(Medesara) line WRTS-I GMR

35 400 Nagothane -Padgha ckt II R 07.5.13 9:00 07.5.13 17:00 Daily Q.M.work MSETCL MSETCL

36 400 Jaigad-NewKoyna -II R 07.5.13 8:00 07.5.13 12:00 Daily Polymer Insulator replacement MSETCL MSETCL

37 400 Jaigad-NewKoyna -I R 07.5.13 13:00 07.5.13 18:00 Daily Polymer Insulator replacement MSETCL MSETCL

38 220 Kawas-navsari 2 R 07.5.13 0800 07.5.13 1900 Daily For Attending Hotspot and Routine maintenance NTPC NTPC

39 220 Omkareshwar-Khandwa R 07.5.13 9.00 07.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

40 220 Damoh(PGCIL) - Sagar R 07.5.13 8.00 07.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

41 220 Rajgarh-Shujalpur(PGCIL) Ckt-I R 07.5.13 9.00 07.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

42 400 SUGEN- Pirana -2 R 07.5.13 `0800 12.5.13 1900 Continuous Silicon coating on porcelain part of Switch Yard Equipment

TPGL TPL

43 400 Jaigad-Karad -II R 08.5.13 8:00 08.5.13 12:00 Daily Polymer Insulator replacement MSETCL MSETCL

44 400 Jaigad-Karad -I R 08.5.13 13:00 08.5.13 18:00 Daily Polymer Insulator replacement MSETCL MSETCL

45 400 Karad-Solapur (PGCIL) R 08.5.13 9:00 08.5.13 17:00 Daily Annual Maintenance work. MSETCL MSETCL

46 220 Seoni (PGCIL) - Chhindwara Ckt I R 08.5.13 7.00 08.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

47 220 Rajgarh-Shijalpur(PGCIL) Ckt-II R 08.5.13 9.00 08.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

48 220 Kawas-Vav 1 R 08.5.13 0800 08.5.13 1900 DailyFor Attending Hotspot and Routine maintenance NTPC NTPC

49 400/220 ICT # II at Raipur ICT 08.05.13 10:00 08.05.13 14.00 Daily AMP work WRTS-I WRTS-I

50 400/220 ICT # 2, Satna ICT 8.5.13 9:00 10.5.13 18:00 Continuous OLTC pipe modification works Power Grid WRTS-II

51 400 KORBA-VINDHAYANCHAL-2 R 8.5.13 9:00 9.5.13 18:00 Daily BAY ANNUAL MAINT JORSAND&i/l-PROTN NTPC NTPC

52 400 Jejuri-Koyna stg IV R 09.5.13 9:00 09.5.13 17:00 Daily Q.M.work. MSETCL MSETCL

53 220 Kawas-Vav 2 R 09.5.13 0800 09.5.13 1900 DailyFor Attending Hotspot and Routine maintenance NTPC NTPC

54 220 Seoni (PGCIL) - Chhindwara II R 09.5.13 7.00 09.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

55 400 Akola- Bhusawal R 10.5.13 9:00 10.5.13 17:00 Daily Disc string replacement,fixing of spacers,dampers,earthbond

MSETCL MSETCL

56 400 Kalwa-Padgha Ckt II R 10.5.13 9:00 10.5.13 17:00 Daily Q.M.Work MSETCL MSETCL

57 220 Damoh(PGCIL) - Damoh(MPPTCL) I/C II R 10.5.13 8.00 10.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

58 220 Kawas-Haldarva 1 R 10.5.13 0800 10.5.13 1900 DailyFor Attending Hotspot and Routine maintenance NTPC/getco NTPC

59 400 Korba-Raipur # 3 & 4 C 10.05.13 8:00 11.05.13 18:00 Continuous Stringing of upcoming 400 D/C GCEL-Durg(Medesara) line WRTS-I GMR

60 400 400 KV Isp-Nagda R 11.5.13 10.00 11.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

61 220 Kawas-Haldarva 2 R 11.5.13 0800 11.5.13 1900 Daily For Attending Hotspot and Routine maintenance NTPC NTPC

62 765 Satna-Bina#2 C 12.5.13 7:00 13.5.13 19:00 Daily Crossing of 765kV S/c Satna - Gwalior Ckt.1 and 765kV D/C PGCIL WRTS-II

63 400 Pirana-PGCIL line-1 R 13.5.13 `0800 18.5.13 1900 Continuous Silicon coating on porcelain part of Switch Yard Equipment

TPGL TPL

64 400 Satna-Bina #1 & 2 C 14.5.13 7:00 15.5.13 19:00 DailyCrossing of 765kV S/c Satna - Gwalior Ckt.1 and 765kV D/C PGCIL WRTS-II

65 400 Akola-Nandgaonpeth R 14.5.13 9:00 14.5.13 17:00 Daily Disc string replacemnt & other line maint. & Q. M. Work MSETCL MSETCL

66 220 Shujalpur(PGCIL) - Sujalpur (MP)-I R 14.5.13 9.00 14.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

67 400 400 Sipat- Raipur-1 line R 14.5.13 0800 15.5.13 1900 Daily 400 CTs ( 2nos) replacement work NTPC NTPC

68 400 Padgha-Tarapur Ckt.I R 15.5.13 9:00 15.5.13 17:00 Daily Q.M.work MSETCL MSETCL

69 400 400 KV Indore-Nagda R 15.5.13 9.00 15.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

70 220 Gwalior(PGCIL) -Malanpur Ckt -I R 15.5.13 8.00 15.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

71 220 Shujalpur(PGCIL) - Sujalpur (MP)-II R 15.5.13 9.00 15.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

72 400 Vadavi-Bhachau 1 R 15.5.13 8:00 15.5.13 18:00 Daily Maintenance work PGCIL GETCO

73 400 Vadavi-Bhachau 2 R 16.5.13 8:00 16.5.13 18:00 Daily Maintenance work PGCIL GETCO

74 400 SSNL-Dhule-1 R 16.5.13 7:00 16.5.13 17:00 Daily Maintenance work GETCO GETCO

75 400 Soja - Dehgam (PG) R 16.5.13 8:00 16.5.13 18:00 Daily Maintenance work GETCO GETCO

76 400 ICT-II at 400 KV S/s Khedamara ICT 16.5.13 8:00 24.5.13 17:00 Continuous Replacement of 220 MOCB CSPTCL CSPTCL

77 400 Korba(CSPTCL)-Bhilai C 16.5.13 9:00 16.5.13 18:00 Daily Crossing of 765 kV D/C Champa-Raipur CSPTCL WRTS-I

78 220 Chhgoan-Khandwa -II R 16.5.13 9.00 16.513 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

79 400 Lonikand- Karad R 16.5.13 8:00 16.5.13 17:00 Daily Q.M.work MSETCL MSETCL

80 220 Rajgarh-Pithampur Ckt-I R 16.5.13 9.00 16.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

81 220 Gwalior(PGCIL) -Malanpur Ckt -II R 16.5.13 8.00 16.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

82 400 Akola-Nandgaonpeth R 17.5.13 9:00 17.5.13 17:00 Daily Disc string replacemnt & other line maint. Work . MSETCL MSETCL

83 220 Rajgarh-Pithampur Ckt-II R 17.5.13 9.00 17.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

84 220 Gwalior(PGCIL)-Mahalgoan(Gwl) Ckt-I R 17.5.13 8.00 17.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

85 400 Satna-Bina #3 & 4 C 17.5.13 7:00 18.5.13 19:00 ContinuousCrossing of 765kV S/c Satna - Gwalior Ckt.1 and 765kV D/C PGCIL WRTS-II

86 400 Bhusawal-Koradi R 18.5.13 9:00 18.5.13 17:00 DailyDisc string replacement,fixing of spacers,dampers,earthbond and MSETCL MSETCL

87 220 Gwalior(PGCIL)-Mahalgoan(Gwl) Ckt-II R 18.5.13 8.00 18.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

88 400/220 315 MVA XMER NO.II AT 400 KV S/S NAGDA

ICT 18.5.13 8.00 18.5.13 17.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

89 400 Pandariya(Raigarh)-KSK C 19.5.13 9:00 19.5.13 17:00 Daily Crossing of D/c 765KV Raigarh-Raipur

KSK WRTS-I

90 400 Jabalpur-Itarsi # 1 & 2 C 19.5.13 7:00 20.5.13 19:00 Daily Crossing of 400 kV Jabalpur-Jabalpur pooling PGCIL WRTS-II

91 400 Pirana(TPL)-Pirana (PGCIL) -2 R 19.5.13 `0800 24.5.13 1900 Continuous Silicon coating on porcelain part of Switch Yard Equipment

TPGL TPL

92 400 SSNL-Dhule-2 R 20.5.13 7:00 20.5.13 17:00 Daily Maintenance work GETCO GETCO

93 220 Lalpar - Bhimasar (PG) R 20.5.13 8:00 20.5.13 18:00 Daily Maintenance work GETCO GETCO

94 400 Jabalpur-Itarsi # 3 & 4 C 21.5.13 7:00 22.5.13 19:00 Continuous Crossing of 400 kV Jabalpur-Jabalpur pooling PGCIL WRTS-II

95 400 400 KV Rajgarh -SSP Ckt -I R 21.5.13 9.00 21.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

96 400 400 KV Rajgarh -SSP Ckt -II R 22.5.13 9.00 22.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

97 400 Lamboti-Parli R 22.5.13 9:00 22.5.13 17:00 Daily Q.M.work. MSETCL MSETCL

98 400 Bhilai-Korba (NTPC)-2 C 22.5.13 9:00 22.5.13 18:00 Daily crossing of 765KV D/c Raigarh-Raipur WRTS-I WRTS-I

99 220 Chhgoan-Khandwa -I R 22.5.13 9.00 22.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

100 400 Itarsi - Khandwa Ckt.1 R 22.5.13 9:00 22.5.13 18:00 Daily Retrofitting of obsolete main relays with numerical relays PGCIL WRTS-II

101 220 Navsari - Nasik - 1 R 22.5.13 9:00 22.5.13 18:00 Daily Maintenance work GETCO GETCO

102 400 Itarsi - Khandwa Ckt.2 R 23.5.13 9:00 23.5.13 18:00 Daily Retrofitting of obsolete main relays with numerical relays

PGCIL WRTS-II

103 400 400 Sipat- Ranchi-2 line* IR 23.5.13 0800 24.5.13 1900 Daily 400 CTs ( 4nos) replacement work PGCIL NTPC/PGCIL

104 400 400 Sipat- Ranchi-1* IR 24.5.13 0800 24.5.13 1900 Daily Crossing of 765KV D/c Jharsugda-D WRTS-I WRTS-I

105 220 Vapi - Vapi (PG) R 24.5.13 9:00 24.5.13 18:00 Daily Maintenance work GETCO GETCO

106 400 Babhaleshwar-Bhusawal R 24.5.13 9:00 24.5.13 17:00 Daily Q.M.work. MSETCL MSETCL

107 400 Padgha-HVDC (A/C) I R 24.5.13 9:00 24.5.13 17:00 Daily Q.M.work. MSETCL MSETCL

108 400 BPSCL(J P Power)-MPPTCL C 25.5.13 7:00 25.5.13 19:00 Daily Crossing of 765 kV Bina-Gwalior Ckt 3 MPPTCL WRTS-II

109 400 KORBA-BHATAPARA R 25.5.13 9:00 26.5.13 18:00 Daily BAY ANNUAL MAINT JORSAND&i/l-PROTN NTPC NTPC

110 500 Chandrapur-Padghe HVDC Bi Pole HVDC 26.5.13 5:30 26.5.13 10:30 Daily Crossing of 765 kV S/C Akola-Aurangabad Line Ckt-I

MSETCL MEGPTCL

111 400 Indore - Asoj # 1 C 26.5.13 7:00 26.5.13 19:00 DailyCrossing of 765kV D/C Indore - Vadodara & Vadodara - Piran PGCIL WRTS-II

112 400 Gandhar - Dehgam Ckt.1&2 C 27.5.13 7:00 27.5.13 19:00 Daily Crossing of 765kV D/C Vadodara - Pirana line

PGCIL WRTS-II

113 400 Bhilai-Korba(NTPC)-1 C 27.5.13 9:00 27.5.13 17:00 Daily Crossing of of 765KV Champa-Raipur D/c. WRTS-I WRTS-I

114 220 Navsari - Nasik - 2 R 28.5.13 9:00 28.5.13 18:00 Daily Maintenance work GETCO GETCO

115 220 Bhilad - Vapi (PG) - 1 R 28.5.13 9:00 28.5.13 18:00 Daily Maintenance work GETCO GETCO

116 400 400 KV Nagda- Rajgarh Ckt-I R 28.5.13 9.00 28.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

117 400 400 KV Nagda- Rajgarh Ckt-II R 29.5.13 9.00 29.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

118 400 Boiser(PGCIL)-Padgha R 29.5.13 9:00 29.5.13 17:00 Daily Q.M.work MSETCL MSETCL


120 400 WTPS - Dehgam (PG) R 29.5.13 8:00 30.5.13 18:00 Daily Maintenance work GETCO GETCO


122 400 Indore - Asoj # 2 C 30.5.13 7:00 30.5.13 19:00 Daily Crossing of 765kV D/C Vadodara - Pirana line PGCIL WRTS-II

123 220 Khandwa-Nepanagar R 30.5.13 9.00 30.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

124 220 Hoshangabad-Itarsi(PGCIL) R 30.5.13 9.00 30.5.13 18.00 Daily Pre-mansoon Maintenance work MPPTCL MPPTCL

125 400 Raipur-Wardha # 1 & 2 * C 30.05.13 8:00 31.05.13 18:00 Continuous Stringing of upcoming 765KV D/C Raipur-Wardha line

WRTS-I WRTS-I

Information

1 400 Rajgarh - Kasor Ckt. 1&2 Inf 5.5.13 7:00 5.5.13 19:00 Daily Crossing of 765kV D/C Vadodara - Pirana line RELIANCE WRTS-II

2 400 Vapi-Boisar Inf 01.05.13 10:00 30.05.13 16:00 Continuous

Online PID testing of insulators. Only A/R shall be kept in non-auto mode at both end, Line remain in service.

WRTS-I WRTS-I

3 400 Tarapur-Padghe # 1 & 2 Inf 01.05.13 10:00 30.05.13 16:00 Continuous

Online PID testing of insulators. Only A/R shall be kept in non-auto mode at both end, Line remain in service.

WRTS-I WRTS-I

4 400 Bhilai-Koradi Inf 01.05.13 10:00 30.05.13 16:00 Continuous

Online PID testing of insulators & Hot line maintenance. Only A/R shall kept in non-auto mode at both end, Line remain in service.

WRTS-I WRTS-I

5 400 Khandwa-Dhule 1 & 2 Inf 01.05.13 10:00 30.05.13 16:00 Continuous

Online PID testing of insulators & Hot line maintenance. Only A/R shall kept in non-auto mode at both end, Line remain in service.

WRTS-I WRTS-I

Note: 1. All outages are subjected to real time conditions.

2. Codes: R‐Routine Maintence; C‐Construction; IR‐Interregional; Inf ‐ information;

3. * ‐ WRLDC may coordinate it in consultation with NLDC

Date Time Date Time

MPPTCL

1 220 Malanpur- Auriya Ckt * 03.05.13 03.05.13 9.00 18.00 dailyPre-mansoon Maintenance

workMPPTCL EHT -M&I TPL

2 220 Mehgaon- Auriya Ckt * 04.05.13 04.05.13 9.00 18.00 dailyPre-mansoon Maintenance

workMPPTCL EHT -M&I WRTMPL

3 220 Badod - Kota Ckt* 28.05.13 28.05.13 9.00 18.00 dailyPre-mansoon Maintenance

workMPPTCL EHT -M&I MPPTCL

4 220 Badod - Modak Ckt* 29.05.13 29.05.13 9.00 18.00 daily Pre-mansoon Maintenance MPPTCL EHT -M&I GETCO

5 220 Anuppur-Kotmikala Ckt-I 07.05.13 07.05.13 8.00 17.00 daily Pre-mansoon Maintenance MPPTCL EHT -M&I MSETCL

6 220 Anuppur-Kotmikala Ckt-II 15.05.13 15.05.13 8.00 17.00 daily Pre-mansoon Maintenance MPPTCL EHT -M&I MPPTCL

System Agency

220 KV INTER-REGIONAL /INTRA REGIONAL LINE OUTAGES

List of Transmission elements' outage approved in 446th OCCM

Annexure‐3.2

S. No. kV Line Type From To

Basis Reason

Annexure-8.7.1

ELEMENTS TAKEN OUT ON EMERGENCY IN MARCH’13:

Sl No. Name of the line Agency KV From Date To Date

1 GWALIOR‐MALANPUR‐II MPSEB 220 14:13

7-Mar-13 20:45

7-Mar-13

2 KAWAS‐DASTAN‐II ISTS 220 15:20 22-Mar-13 21:04

22-Mar-13

3 CGPL‐LIMDI‐I PGCIL 400 11:50 23-Mar-13 13:23

23-Mar-13

4 NASIK‐NAVSARI‐II GEB 220 11:33 28-Mar-13 18:55

28-Mar-13

FromDate Time Date Time

1 400kV Satna -Bina # III & IV 02/03/2013 8:00 02/03/2013 18:00 Daily Power Grid WRTS-II Not Availed Crossing of 765 kV S/C Satna-Charkeri Part of Satna-Gwalior#1

2 400kV Nagda - Rajgarh D/C 04/03/2013 8:00 04/03/2013 18:00 Daily MPPTCL WRTS-II Not Availed Crossing of 765 kV S/C Inodre-Dahod part of Indore-Vadodara

3 400kV Zerda - Kankroli 06/03/2013 8:00 06/03/2013 17:00 Daily Power Grid NRTS-1 Not Availed AMP of bays at Zerda4 400kV Satna -Bina # I & II 06/03/2013 8:00 06/03/2013 18:00 Daily Power Grid WRTS-II Not Availed Crossing of 765 kV S/C Satna-

Charkeri Part of Satna-Gwalior#15 400kV Indore-Asoj#1 07/03/2013 8:00 07/03/2013 18:00 Daily Power Grid WRTS-II Not Availed Crossing of 765 kV S/C Dahod-

Vadodara part of Indore-Vadodara

6 400kV Zerda - Bhinmal 07/03/2013 8:00 07/03/2013 17:00 Daily Power Grid NRTS-1 Not Availed AMP of bays at Zerda7 400kV Jhanor - Dehgam # 1 07/03/2013 9:00 07/03/2013 15:00 Daily Power Grid WRTS-II Not Availed Replacement of defective insulator

string8 400kV Korba Vindhyachal-2 07/03/2013 8:00 08/03/2013 18:00 Daily NTPC Korba/NTP

CNot Availed For doing complete bay annual

maint. Jobs & I/L –protn checking, Reactor maint.& Main-I protection checking.

9 400kV Itarsi-Indore#1 11/03/2013 9:00 11/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP, checking of A/R & PLCC replacement work

10 400kV Itarsi-Indore#2 12/03/2013 9:00 12/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP, checking of A/R & PLCC replacement work

11 400kV Vindhyachal-Satna#1 15/03/2013 9:00 15/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP 12 400kV Vindhyachal-Satna#3 18/03/2013 9:00 18/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP 13 400kV Vindhyachal-Satna#4 19/03/2013 9:00 19/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP 14 400kV Seoni - Khandwa # 2 20/03/2013 10:00 20/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP15 400kV Damoh-Bhopal#2 21/03/2013 9:00 21/03/2013 14:00 Daily Power Grid WRTS-II Not Availed AMP 16 400kV V'chal - Jabalpur Ckt.4 23/03/2013 9:00 24/03/2013 18:00 Daily Power Grid WRTS-II Not Availed Replacement of defective insulator

strings17 400kV Jabalpur - Sasan 25/03/2013 9:00 27/03/2013 18:00 Daily Power Grid WRTS-II Not Availed Replacement of defective insulator

strings18 400kV Vapi-Boisar S/C 26/03/2013 8:00 26/03/2013 18:00 Daily Power Grid WRTS-II Not Availed LILO of both circuit of 400 kV D/C

Vapi- Navi Mumbai Transmission Lines at Kala (UT of DNH)

19765

Satna -Bina # I 03.03.13 8:00 03.03.13 18:00Daily WRTS‐II Power Grid

Not availed Crossing of 765 kV S/C Satna‐Charkeri Part of Satna‐Gwalior#1

20765

Satna -Bina # II 04.03.13 8:00 04.03.13 18:00Daily WRTS‐II Power Grid

Not availed Crossing of 765 kV S/C Satna‐Charkeri Part of Satna‐Gwalior#1

21 400 Vadavi-Bhachau line-1 05.03.13 8:00 05.03.13 18:00 Daily GETCO GETCO Not availed PMM WORK22

400Bhadravati- Bhilai 05.03.13 15:00 05.03.13 19:00

Daily WRTS‐I WRTS‐INot availed REL 670 relay replacement work for

CSEB Substation23

765Seoni- Wardha # 1 05.03.13 8:00 06.03.13 18:00

ContinuousWRTS‐I WRTS‐INot availed Dropper work for reactor isolator at

Seoni24 400 Dehgam - Pirana # 1 07.03.13 0.38 07.03.13 0.63 Daily WRTS‐II Power Grid Not availed AMP 25

400

Indore-Asoj#1 07.03.13 0.33 07.03.13 0.75

Daily WRTS‐II Power Grid

Not availedCrossing of 765 kV S/C Dahod‐Vadodara part of Indore‐Vadodara

26400

Bina - Gwalior -Agra # 2*08/03/2013 8:00 08/03/2013 18:00 Continuous Power Grid WRTS-II

Deferred & availed on 10 Mar 2013 Upgradation to 765 kV

27400

Bina - Gwalior - Agra # 1*20/03/2013 8:00 20/03/2013 18:00 Continuous Power Grid WRTS-II

Deferred & availed on 24.3.13 Upgradation to 765 kV

Reason Remark

Status of availing/ postponement of OCC approved outages for the Month March'2013

S. No.

Line To Basis System Agency Status Reason of Re-scheduling

Next schedule date

28

400

S/C Bhilai-Koradi

11/03/2013 8:00 12/03/2013 17:00 Daily

WRTS‐1 WRTS‐1

Deferred and availed on 13-14 March, 2013

Stringing work of up-coming 765KV DC Raipur Pooling Station-Wardha TL Part-I Ckt-I & II

29

400

Raipur-Bhilai # 1 & Raipur-Bhadrawati # 1 25/03/2013 8:00 25/03/2013 18:00 Daily

WRTS‐1 WRTS‐1

Deferred and availed on 28 Mar 13

Stringing work of up-coming 400KV D/C Raipur (Pooling Station)- Existing 400 KV Raipur Substation

30

400

Raipur-Bhadrawati # 2 & Raipur-Bhadrawati # 3 28/03/2013 8:00 28/03/2013 18:00 Daily

WRTS‐1 WRTS‐1

Deferred and availed on 31 Mar 13

Stringing work of up-coming 400KV D/C Raipur (Pooling Station)- Existing 400 KV Raipur Substation

Out comes of meeting held between KAPS and UKAI TPS/Hydro power station officials on 24/03/2013 at KAPS

Following are the salient points of the meeting: 1) As per the need arises for immediate requirement of power supply at KAPS after grid failure,UKAI officials agreed to provide power supply (around 3 to 5 Mwe)within 20 minutes after starting of UKAI hydro station through UKAI TPS switchyard depending on the prevailing condition of the grid. 2) The procedure prepared earlier by KAPS and GETCO officials was given to Sh J C Mali, SE (Electrical) for review and the approval from UKAI authority. 3) UKAI officials informed thatPower supply from UKAI hydro station (75 Mwe) will be available after starting and loading to stable load of around 30-40 Mwe through UKAITPS switchyard and subsequent charging of 220 KV UKAI-KAPS-MOTAline No-1 for KAPS switch yard supply. They informed that UKAI hydro station load operation is being done daily and hence it’savailability is ensured most of the time. 4) UKAI officials informed that SLDC-Gotri gives the instructions for starting of UKAI hydro station and further loading. Hence the charging and loading of 220 KV UKAI-KAPS-MOTAline No-1 is done after SLDC clearance only. 5) UKAI officials also informed that hydro power station supply is extended up to 66 KV substation at Vyara. KAPS is already having installed line from Vyara to 11 KV substation at KAPS which remains charged. Hence this route can be explored for power supply from UKAI hydro power station during grid failure in addition to 220 KV UKAI-MOTAline No-1 in consultation with SLDC.

Staggering of daily Energy requirement by Beneficiaries:

Kawas Single GT opeartion

A) Case 1 :

From To Duration (Hrs)0:00 5:00 5 80 C/C 2.3 0.40 9.25:00 7:30 2.5 111 C/C 2.3 0.28 6.38257:30 23:00 15.5 150 C/C 2.3 2.33 53.47523:00 0:00 1 80 C/C 2.3 0.08 1.84

Total 3.08 70.90Per Unit VC (Rs/Kwh) 2.30

1) The shedule from 23:00 hrs to 05 :00 Hrs is 80 MW which is less then the technical minimum in combined mode (111 MW). To run on TM load we have to over inject to the tune of 31 MW .2) Total MU requisitioned is 3.08 MU

B) Case 2

From To Duration (Hrs)0:00 5:00 5 111 C/C 2.3 0.56 12.7655:00 7:30 2.5 111 C/C 2.3 0.28 6.38257:30 23:00 15.5 138 C/C 2.3 2.14 49.19723:00 0:00 1 111 C/C 2.3 0.11 2.553


1) The total Schedule MU can be met by staggering the SG during the day so that TM schedule is obtained during low demand period there by avoiding over injection2) The additional share to be availed by the beneficiaries to meet the case 2 is as follows.

C) GEB MP MSEB DD DNH GOA% share 28.5 21.33 31.09 4.72 12.34 1.89

31 8.8 6.6 9.6 1.5 3.8 0.6

D) Case 3 GT & ST is taken under S/D from 23:00 Hrs to 05:00 Hrs. GT is brought back in 6 Hrs

From To Duration (Hrs)0:00 5:00 5 0 2.3 0.00 0.005:00 7:30 2.5 100 O/C 3.45 0.25 8.637:30 23:00 15.5 150 C/C 2.3 2.33 53.4823:00 0:00 1 0 2.3 0.00 0.00


E) Case 4 GT & ST is taken under S/D during week end. GT is brought back after 48 Hrs

From To Duration (Hrs)0:00 5:00 5 0 2.3 0.00 0.005:00 11:00 6 100 O/C 3.45 0.60 20.7011:00 23:00 12 150 C/C 2.3 1.80 41.4023:00 0:00 1 0 2.3 0.00 0.00


Case 2 may be recommended due to following.1) Safe operation of machine is ensured by avoiding frequent start/stop and low load operation.2) TM schedule can be ensured by very less additional MW Share as mentioned in C above .3) Per Unit Cost is minimum in Case 2

TimeSchedule (MW) mode VC (Rs)

Sheduled Energy Carges Rs LacsSchedule MU


Sheduled Energy Carges Rs LacsSchedule MU

mode

Time

Schedule (MW) VC (Rs)Sheduled Energy Carges

Rs LacsSchedule MU

TimeSchedule (MW) VC (Rs)

Sheduled Energy Carges Rs Lacsmode Schedule MU

Staggering of daily Energy requirement by Beneficiaries:

GandharSingle GT opeartion

A) Case 1 :

From To Duration (Hrs) Schedule MU0:00 5:00 5 80 C/C 2.3 0.40 9.25:00 7:30 2.5 149 C/C 2.3 0.37 8.56757:30 23:00 15.5 200 C/C 2.3 3.10 71.323:00 0:00 1 80 C/C 2.3 0.08 1.84


1) The shedule from 23:00 hrs to 05 :00 Hrs is 80 MW which is less then the technical minimum in combined mode (149 MW). To run on TM load we have to over inject to the tune of 68 MW .2) Total MU requisitioned is 3.95 MU

B) Case 2

From To Duration (Hrs) Schedule MU0:00 5:00 5 149 C/C 2.3 0.75 17.1355:00 7:30 2.5 149 C/C 2.3 0.37 8.56757:30 23:00 15.5 173 C/C 2.3 2.68 61.674523:00 0:00 1 149 C/C 2.3 0.15 3.427


1) The total Schedule MU can be met by staggering the SG during the day so that TM schedule is obtained during low demand period there by avoiding over injection2) The additional share to be availed by the beneficiaries to meet the case 2 is as follows.

C) GEB MP MSEB DD DNH GOA% share 28.5 21.33 31.09 4.72 12.34 1.89

69 19.7 14.7 21.5 3.3 8.5 1.3

D) Case 3 GT & ST is taken under S/D from 23:00 Hrs to 05:00 Hrs. GT is brought back in 6 Hrs

From To Duration (Hrs) Schedule MU0:00 5:00 5 0 2.3 0.00 0.005:00 7:30 2.5 100 O/C 3.45 0.25 8.637:30 23:00 15.5 200 C/C 2.3 3.10 71.3023:00 0:00 1 0 2.3 0.00 0.00


E) Case 4 GT & ST is taken under S/D during week end. GT is brought back after 48 Hrs

From To Duration (Hrs) Schedule MU0:00 5:00 5 0 2.3 0.00 0.005:00 10:00 5 100 O/C 3.45 0.50 17.2510:00 23:00 13 200 C/C 2.3 2.60 59.8023:00 0:00 1 0 2.3 0.00 0.00


Case 2 may be recommended due to following.1) Safe operation of machine is ensured by avoiding frequent start/stop and low load operation.2) TM schedule can be ensured by very less additional MW Share as mentioned in C above .3) Per Unit Cost is minimum in Case 2


Sheduled Energy Carges Rs Lacs



Time

Schedule (MW) mode VC (Rs)Sheduled Energy Carges Rs Lacs



446.pdf446occ_minute final.pdfparticipants list_446th OCC meeting 09.04.2013.pdfannexure 2.6-2.7.pdf3.1.pdfLine and Unit Outages_446_OCCM.pdf32.2.pdf8.5.pdf8.6.pdf8.7.pdf8.7.1(A).pdf9.pdf9.21.pdf9.22.pdf

Documents

Baart sarkar Government of India kondÌya ivaVut pàiQakrNawrpc.gov.in/occ/446occ_minute.pdf · 2013-04-18 · Baart sarkar Government of India kondÌya ivaVut pàiQakrNa Central