occ agenda - wrpc.nic.in6 400 kv mouda –betul pg lines june -17 chhattishgarh 1 400 kv dcds...

496th OCC AGENDA

AGENDA FOR 496TH MEETING OF OPERATION & COORDINATIONSUB-COMMITTEE OF WRPC

TO BE HELD ON 13th JUNE 2017 AT WRPC, MUMBAI

ITEM No. 1: CONFIRMATION OF THE MINUTES

Minutes of 495th meeting of Operation & Coordination Sub-Committee (OCC) of

WRPC held on 12th May 2017 at WRPC Mumbai were forwarded vide letter No.

WRPC/OPN/OCC-Minutes/2016-17/6321 dated 24.05.2017.

No comments have been received.

Sub-Committee may kindly discuss and confirm the Minutes of the 495th OCCmeeting.

ITEM No.2: REVIEW OF SYSTEM OPERATION DURING THE MONTH OF MAY,2017.

2.1 FREQUENCY PARTICULARS

The average frequency during the month of May, 2017 was 49.99 Hz. The

maximum instantaneous frequency was 50.26 Hz at 18:07:00 hrs on 21.05.2017, while

minimum instantaneous frequency was 49.64 Hz at 15:11:40 hrs on 11.05.2017. The

frequency profile during May, 2017 was as under:

01st May, 2017 to 31st May, 2017 % time

IEGC band (49.9 < f < 50.05 Hz) 71.45

< 49.9 Hz 9.09

> 50.05 Hz 19.46

The frequency particulars is enclosed at Annex-2.1

The Sub-Committee may kindly note.

2.2 INTER-REGIONAL EXCHANGESThere was a net inter-regional export of 6012 MUs by WR against net export

schedule of 5917 MUs.


496th OCC AGENDA

2.3 VOLTAGE PROFILE

Voltage profile at some of 765/400 kV sub-stations during the month of May,2017 furnished by WRLDC is enclosed at Annex-2.3.


2.4 U/F RELAY OPERATIONS

As per WRLDC records during May, 2017 the system frequency didn’t touch 49.5

Hz and no UFR operation was reported to WRLDC.

The Sub-Committee may kindly note.2.5 POWER CUTS / LOAD RESTRICTIONS

Details of Power Cuts and Regulatory measures during May, 2017 as furnished

by the State utilities are given in Annex. 2.5.


2.6 DETAILS OF GENERATING UNITS UNDER FORCED OUTAGES

Details of generating units under forced outages during May, 2017 are given inAnnex-2.6.


2.7 DETAILS OF GENERATING UNITS UNDER PLANNED OUTAGES

The details of generating units under Planned Outages during May, 2017 aregiven in Annex-2.7


ITEM No.3: OPERATIONAL PLANNING

3.1 PROPOSED PLANNED MAINTENANCE PROGRAMME OF GENERATINGUNITS.The maintenance programme of generating units for the months June & July

2017 is given in Annex 3.1.

The Sub-Committee may kindly discuss and finalize the outage schedule ofgenerating units for the above period.

496th OCC AGENDA

3.2 OUTAGE PROGRAMME OF TRANSMISSION LINES/ELEMENTS

List of proposals for transmission elements outage to be availed during the

month of July 2017 is given in Annex 3.2.

The Sub-Committee may kindly discuss and finalize the outages of therequest transmission elements.

3.3 ANTICIPATED POWER SUPPLY POSITION FOR THE MONTHS – JUNE &JULY 2017

Details of anticipated restricted & un-restricted demands for the months of June

& July, 2017 are given in Annex 3.3.

The Sub-Committee may like to note/update.

ITEM No. 4: OPERATIONAL STATISTICS FOR THE MONTH OF MAY, 2017

The details of actual generation, demand, drawl of power from grid; exchangesetc. are given in the following Annexure:

Annex 4.1 - Actual Generation and Requirement for May, 2017.

Annex 4.2 - Peak Demand: Schedule Vs Actual for May, 2017.

Annex 4.3- Integrated Operation of the System and Operation of Inter State Tie lines forMay, 2017.

Annex 4.7 – Details of level of Major Reservoirs in Western Region for May, 2017


ITEM No. 5: SYSTEM DISTURBANCES IN WESTERN REGION

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

May, 2017. However the details of minor incidences during the month received from

WRLDC are enclosed at Annexure-5.

The Sub-Committee may like to note/discuss.ITEM No. 6: HEALTHINESS STATUS OF SERs/DRs OF EQUIPMENT IN THE

SYSTEM.

Following Constituents have furnished the status of healthiness of SERs/DRs in their

systems on the dates below:

496th OCC AGENDA

S.l. No. Name of Constituent Date of Receipt

1 PGCIL,WRTS-I 06.06.2017

2 PGCIL,WRTS-II 06.06.2017

3 MPPTCL 12.05.2017

4 NTPC 05.06.2017

5 CSPTCL 03.06.2017

6 GETCO 12.05.2017

7 MSETCL 06.06.2017

8 DD/DNH

9 GOA

10 NPCIL

11 NCA/SSP

12 NHDC

13 Jindal PL 12.05.2017

14 CGPL 05.06.2017

15 DB POWER

16 KWPCL

17 ACBIL/TRN ENERGY 05.05.2017

18 KSK

19 GMRCHHATTISHGARH

20 JNSTPS 08.05.2017

21 MB POWER

22 SASAN UMPP 12.05.2017

23 NSPCL 12.05.2017

24 RGPPL

25 SUGEN 08.05.2017

26 RKM POWER

27 ESSAR POWER 08.05.2017

28 BDTCL/JTCL/RTCL 12.05.2017

29 RELIANCETRANSMISSION

12.05.2017

30 ADANI POWER 03.05.2017

496th OCC AGENDA

31 JHABUA POWER 11.05.2017

32 EPTCL 08.05.2017

33 TPGL 11.05.2017

The remaining Constituents are requested to submit the status ofhealthiness of their SERs/DRs before the meeting.

ITEM No. 7: STATUS OF COMPLETION OF ONGOING SCHEMES FORCOMMISSIONING OF REACTORS, TRANSMISSION LINES ANDGENERATING UNITS IN WR.

7.1 STATUS OF COMPLETION OF ONGOING SCHEMES FOR COMMISSIONINGOF REACTORS IN 2017-18.

Sl.No.

400 kVSub/Stn.

Size (MVAr) Implementingagency

Expected date ofcommissioning

1 Nanded 125 MSETCL June – 20172 Sholapur 125 MSETCL June – 20173 Kolhapur 125 MSETCL June – 20174 Akola 125 MSETCL June – 20175 ISP 125 NHDC June – 2017

(Tendering done)6 Satpura 50 MPPGCL Dec-2017

The WR utilities may kindly intimate the current status on above.

7.2 STATUS OF COMPLETION OF 765/400 kV AND ABOVE ONGOINGTRANSMISSION SCHEMES BEING EXECUTED/IMPLEMENTED BYTRANSMISSION AGENCIES.

The updated status on various ongoing transmission schemes for the year 2017-

18 as per the current information available is as follows: -

Sl.No.

Name of the Line TargetCompletion

Date

Remarks

POWERGRID1 400 kV Navsari – Kudus D/C Line June -17 ROW/Forest problem

496th OCC AGENDA

2 765 kV Nizamabad-Hyderabad D/C June 17

3 400 kV Aurangabad - Boisar line D/C line June -174 765 kV Aurangabad (PG) - Padghe (PG)

D/CJune -17

5 800 kV Champa – Kurukshetra Bipole One pole test charged on25.01.2017

Pole two expected at end ofMay 2017.

6 400 kV MOUDA –BETUL PG LINES June -17CHHATTISHGARH1 400 kV DCDS Raipur(Raita)-

Jagdalpur(DCDS)June -17 Work completed

2 LILO of 220 kV Raigarh-Budipadar at 400kV PGCIL S/s Raigarh. Ideal charged on11.8.2015 for anti theft reason

July -17

GUJARAT1 400 kV D/C Vadinar-Amreli line Dec -172 400kV APL-Hadala LILO to Halvad Oct -173 400 kV D/C Amreli-Kasor line(Part-1) June -174 400 kV Varsana-Halvad June -17

MADHYA PRADESH

MAHARASHTRA(STU)1 400 kV Bableshwar-Kudus D/C (Quad) July -17 Forest clearance awaited,severe ROW problemADANI TRANSMISSION LTD1 765 kV switching station at

Rajnandgaon.Data to be submitted byATL

2 Raipur Pool - Rajnandgaon 765 kV D/C

line.

Data to be submitted by ATL

3 Rajnandgaon – new pooling station at

near Warora 765 kV D/C line.


4 400 / 220 kV Substation at Morena. Data to be submitted by ATL

5 Gwalior 765 /400 kV – Morena 400 kV

D/C


6 Vindhyachal-IV&V STPP - Vindhyachal

Pool 400 kV D/C (Quad) 2nd line.


7 2-Nos 400 kV Line bays at Vindhyachal

IV. STPP Switchyard.


496th OCC AGENDA

8 1-No 765 kV line bay at Sasan UMPP. Data to be submitted by ATL

9 Sasan UMPP - Vindhyachal Pooling

station 765 kV S/C line.


10 LILO of one circuit of Aurangabad –

Padghe 765 kV D/C line at Pune.


11 Raigarh (Kotra) – Champa (Pool) 765 kV

2nd S/C Line.


12 Champa (Pool) – Dharamjaygarh 765 kV

2nd S/C line.


13 Bilaspur pooling station – Rajnandgaon

765 kV D/C line.


14 Sipat – Bilaspur Pooling station 3rd 765

kV S/C line.


15 1 No 765 kV Line bay at Sipat STPPS of

NTPC.


The WR utilities may intimate the current status on above.

7.3 COMMISSIONING OF NEW GENERATING UNITS IN WESTERN REGIONAND THE CAPACITY EXPECTED TO BE COMMISSIONED DURING THECURRENT YEAR 2017-18.

The status regarding Generating units, commissioned /expected to becommissioned during the current year 2017-18 according the available information is asbelow:

Name of the Power Projects UnitNo.

Capacity(MW)

Date of Commissioning/Schedule Date

GUJARATNIL

CHHATTISGARHNIL

MAHARASHTRACHANDRAPUR 8 500 Synchronized on 29.3.2015.

COD on 04.06.2016CHANDRAPUR 9 500 Commissioned on 21.03.2016.

COD not yet declaredMADHYA PRADESH

496th OCC AGENDA

Essar Power MP Ltd(Mahan) 2 600 July -17BLA 2 45 Commissioned on 20.03.2017CENTRAL SECTOR/IPP

KSK 3 600 Dec -2017KSK 4 600 Dec – 2017RKM 3 360 Sept 2017RKM 4 360 December 2017TRN Energy 2 300 COD on 01.05.2017SKS 1 300 Expected by April 2017SKS 2 300 Expected by July 2017Rattan India 3 270 Achieved full load on

14.04.2017NTPC Mouda 4 660 June 2017NTPC Lara 1 800 Dec 2017NTPC Solapur 1 660 June 2017NTPC Solapur 2 660 Sept 2017

The WR utilities may intimate the current status on above.

ITEM No. 8: MISCELLANEOUS OPERATIONAL ITEMS

8.1: QUARTERLY REVIEW OF CRISIS MANAGEMENT PLAN AND PHYSICAL &CYBER SECURITY (P&CS) IN POWER SECTOR

The current status of submission of CMP and P&CS report (constituent wise) for the

fourth quarter (January 2017 to March 2017) is given below:

SrNo

Name of Constituents CMP Status P&CS Status1 NTPC I & II NTPC I Submitted on 11.04.2017

NTPC II Submitted on 08.03.2017 __

2 PGCIL I & II PGCIL I Submitted status on11.04.2017

PGCIL II Submitted status on07.03.2017

__

3 WRLDC Report Submitted on 02.05.2017 Report Submittedon 02.05.2017

4 GUJARAT5 MAHARASHTRA Submitted status by SLDC

Maharashtra

6 CHHATTISGARH7 MADHYA PRADESH Submitted status by SLDC MP

496th OCC AGENDA

8 DD/DNH9 GOA10 NPCIL11 NCA12 NHDC13 Jindal PL14 CGPL Status Submitted on 05.05.201715 DB POWER16 KWPCL17 ACBIL/TRN ENERGY18 KSK19 GMR CHHATTISHGARH20 JNSTPS Status Submitted on 03.05.201721 MB POWER22 SASAN UMPP Status Submitted on 29.04.2017 Status Submitted

on 29.04.201723 NSPCL24 RGPPL25 SUGEN/DGEN Status Submitted on 06.05.201726 RKM POWER27 ESSAR POWER28 BDTCL/JTCL/RTCL29 RELIANCE

TRANSMISSION30 ATIL31 JHABUA POWER32 EPTCL

All other constituents are requested to submit the Status Report.

The sub-Committee may like to discuss the same

8.2: MONITORING OF SCHEMES FUNDED FROM PSDF

In the 6th meeting of NPC held on 19th December 2016 at Bengaluru. It was

decided that all the RPCs in the monthly OCC meetings may follow up with the utilities

to expedite the completion of schemes by giving due priority. The implementation of

most of the schemes are based on the recommendation of the enquiry committee on

grid disturbance of July 2012 headed by Chairperson, CEA. Therefore timely

implementation of these schemes would enhance the grid security and reliability.

Accordingly the details of grant sanctioned from PSDF for the schemes of Western

Region is enclosed at annexure- 8.2A for the deliberation in the meeting.

496th OCC AGENDA

Utilities may review the status of implementation of above schemes (physical as well as

financial progress and are also requested to expedite implementation of the schemes.

The NPC vide its email dated 06/06/17 also requested all the utilities to furnish the

information in the format enclosed at annexure – 8.2 B by first week of every month on

regular basis to Member Convener, PSDF project monitoring group (AGM, NLDC,

POSOCO) with a copy to NPC & WRPC. In this regard, only Gujarat & Madhya

Pradesh have so far submitted progress/status in prescribed format (Annexure 8.2C).

All other remaining entities are requested to submit the same in prescribed format at the

earliest..

The Sub-Committee may like to discuss the same.

8.3: PHASING OUT OF GENERATING UNITS WHICH DO NOT HAVE A SPACEFOR INSTALLATION OF FGD FOR COMPLIANCE OF NEW MOEF NORMS OF SOXEMISSIONS

Background:

A Special TCC meeting of WRPC was held on 05.04.2017 at WRPC, Mumbai to

discuss a single point agenda of Phasing out of generating units which do not have a

space for installation of FGD for compliance of new MOEF norms of SOX emissions.

During the meeting it was decided that the generating units have to initiate the process

of installation of FGD at the earliest. The progress of installation would be monitored in

OCC forum regularly. As the Environmental Norms have to be complied by December

2017. The generators are required to place the supply order by December 2017 and

submit a copy to WRPC. In this matter progress in this direction may be furnished

during the meeting. The list of generating units which have been finalised for FGD

installation / phasing out by CEA is enclosed at annexure 8.3, for status update in OCC

meeting. In special TCC, it was also decided that those generator who comply the new

environmental norms shall submit the compliance report from respective State Pollution

Control Board regularly on quarterly basis to CEA /WRPC. .

495th OCC:

496th OCC AGENDA

General Manager Torrent Power, Ahmedabad stated that AMGEN is supplying

power to capital city of Gujarat i.e. Ahmedabad and Gandhinagar. Presently there

are technical constraints in terms of limited import points and capacity of the above

cities which necessitates continued running of AMGEN at least for next 5 years, till

necessary infrastructure is put in place to ensure sustained power supply. Along with

above technical constraint, AMGEN is also exploring all technically feasible and

commercially viable options to comply to revised SO2 norms by commissioning of P-

FGD. (all other norms are already complied including SPM).

Chief Engineer, SLDC Gujarat informed that progress in the direction of installation

of FGD viz. feasibility study, tendering status, award of tender etc. shall be

submitted by December 2017, as per the decision taken.

Member Secretary (I/c), WRPC informed that scope of OCC is to update the status of

progress of FGD installation on monthly basis. However any matter related to

implementation/exemption shall directly taken up with CEA/MOEF. He further requested

all the generating stations to submit an update status on the above issue to WRPC

regularly.

In regard to the statement that some generating stations are already compliant with

norms and FGD is not required, OCC recommended that such generating companies

may take up the matter with the respective environment board and get NOC and submit

the same to CEA / WRPC on regular basis..

The Sub- Committee may like to discuss the same.

8.4 RGMO/FGMO COMPLIANCE BY GENERATORS IN THE REGION

Chief (Engineering), CERC informed vide letter dated 05.06.2017 (letter attached as

annexure 8.4) directed the WRPC /WRLDC to obtain the status of availability of

RGMO/FGMO response from the generators (ISGS as well as intra-state generators)

in its region. This is as per the provisions made under Central Electricity Regulatory

Commission (IEGC) Regulation, 2010 at 5.2 (f).

Also as per provision made under regulation 5 (h) to IEGC dated 12.04.2017,

RLDCs /SLDCs shall not schedule the generating station or unit(s) beyond ex-bus

496th OCC AGENDA

generation corresponding to 100 % of the installed capacity of the generating

stations or unit(s).

The concern generators may submit the same on monthly basis to WRPC /WRLDC

regularly and also concern RLDCs /SLDCs may comply regulation 5 (h) while

scheduling .


8.5 ESTABLISHING PUMP MODE OPERATION AT SSP:

Chief Engineer, SLDC Vadodara, Gujarat vide email dated 29.05.2017 informed that

a meeting of committee for studying Hydro Pump Storage and Wind Power Projects

in the Country was held on 18.05.17 at Ministry of Power, New Delhi.

The Chief Engineer, SLDC had represented all the concerns regarding

establishment of pump mode operation at SSP during above meeting. It has been

represented that mainly two parts are involved in this issue:

1. Construction of Garudeswar weir (will take at least one year)

2. Up-gradation of RBPH Units. (will take at least one and half years)

The construction work of weir is awarded in May – 2012. Presently, approx. 35% of

Construction work of Garudeshwar Dam is completed.

For pumping mode operation of 6 x 200 MW RBPH Units, the supply, installation and

commissioning of isolated phase bus ducts, Static Frequency converter and phase

reversal switch along with all require accessories will be required.

The SSNNL has prepared estimates amounting around 68 Crore Rupee for

equipment required for operating RBPH in pumping mode and submitted to

CWC/CEA for their scrutiny and then same will be submitted to Planning

Commission by SSNNL.

The necessary approval in principle may be given by NCA to SSNNL.

In 111th meeting of PSC of SSCAC held on 26.07.16, Member, NCA recommended

installation of all above during the meeting.

Looking to versatile benefits of pump storage plant, it is utmost necessary that the

funding for up gradation of RBPH units (for establishing pump mode operation) shall

be taken up from PSDF (Power System Development Fund, Government of India) by

NCA. For the same, DPR shall be submitted with recommendation of WRPC to the

496th OCC AGENDA

Nodal Agency (PSDF) within couple of months so that up gradation of RBPH units

shall be completed with completion target of Garudeswar weir.

In this issue, as per request made by Gujarat, NCA may update the status of DPR to

be submitted to WRPC for its recommendation.


8.6 REQUIREMENT OF 400/220 KV, 500 MVA ICT AT KAPP.

Chief Engineer, SLDC-Gujarat vide its letter No. SLDC/CE/MIS/WRPC/1809 dated

14.04.17 informed that the 400 KV D/C KAPP NPP - Navsari (PG) and 400 KV D/C

KAPP NPP - Vapi (PG) have been planned for KAPP Unit 3 & 4 (2x700 MW) near

village Vyara in Surat District, Gujarat.

The existing power project is having 220 KV D/C KAPP – Haldarva, 220 KV D/C

KAPP – Vav and 220 KV D/C KAPP – Vapi lines.

At present, KAPP Unit No 1 & 2 of existing project are under forced outage since

long and likely to be restored in December – 2018. Also, most of the gas based

plants in South – Gujarat are not falling in Merit order dispatch criteria.

Therefore, it is utmost necessary to plan interconnection between existing and new

project at KAPP by installing 400/220 KV, 500 MVA ICT.

It would also help for extending power supply to New KAPP project during large

scale blackout as Kawas, Jhanor, GPEC and Ukai Hydro plants are having black

start facility.

Hence, it is requested that the proposal of interconnection between existing KAPP

and New KAPP plant by putting 400/220 KV, 500 MVA ICT at KAPP shall be taken

up in Standing Committee of CEA by WRPC.

The Sub- Committee may like to discuss the same.8.7 HIGH VOLTAGE PROBLEM AT SSP – REGARDING ACTIONS TO BE TAKEN

TO ENSURE AVAILABILITY OF 400 KV D/C SSP - RAJGADH AND SSP -DHULE LINE.


one circuit of 400 KV SSP – Rajgadh and SSP – Dhule lines remains off to control

496th OCC AGENDA

grid voltage most of the times. In 32nd WRPC meeting held at Pune, it has been

suggested that the reactors at Dhule end are old and to be replaced by 125 MVA

CSR. In 494th OCC meeting held at Mumbai on 12.04.17, MSETCL was requested to

install 125 MVAs reactors at Dhule S/S as the installed CSR are of less rating and

are not working properly.

To ensure adequate availability of 400 KV network associated with SSP during

Monsoon season, it is essential that the existing reactors at Dhule end shall be

replaced by 125 MVAR at the earliest. Also, as a long term measure, one 125 MVAR

bus reactor shall be commissioned at SSP.

Till the time if require, SSP units shall be kept on condenser mode to keep all

connectivity with SSP in service to improve system reliability.


8.8 INSTALLATION OF NEW BUSBAR PROTECTION SCHEME FOR 400 KVSWITCHYARD AT VADAVI S/S – REGARDING KEEPING BUSBARPROTECTION OUT AT 400 KV SWITCHYARD AT VADAVI S/S FOR 30 DAYSW.E.F. 15.07.17:


GETCO Corporate office has sought permission for keeping busbar protection out for

about thirty days at 400 KV Switchyard at Vadavi substation for replacement of

existing busbar protection scheme.

SLDC-Gujarat intends to allow permission keeping 400 KV busbar protections out

from 03.07.17 with following conditions:

a. Busbar arrangements at 400 KV Kansai S/S would be as under during

busbar protection scheme will remain out:

400 KV Bus - 1 400 KV Bus - 2

400/220 KV, 315 MVA ICT - 3 400/220 KV, 315 MVA ICT-1

496th OCC AGENDA

400/220 KV, 315 MVA ICT - 4 400/220 KV, 315 MVA ICT-2

400 KV Dehgam – Vadavi -2 400 KV Dehgam-Vadavi-1

400 KV TBC/125MVAR Reactor 400 KV, 50 MVAR Bus Reactor

400 KV Vadavi – Halvad - 1 400 KV Kansari-Vadavi-1

400 KV Vadavi - Halvad - 2 400 KV Chorania-Vadavi-1

400 KV Kansari – Vadavi - 2 400 KV Bhachau-Vadavi-1

400 KV Chorania – Vadavi - 2

400 KV Bhachau-Vadavi-2

b. 400 KV / 220 KV Bus couplers at Vadavi S/S will remain close.

c. No 400/220 KV, ICT outages will be permitted at Soja, Chorania &

Kansari S/S.

d. No outages 400 KV lines connected to Soja and Kansari S/S will be

permitted.

Before facilitating Bus Bar protection relay outage at Vadavi S/S, SLDC – Gujarat will

confirm following:

1. Zone 4 timing of all the Lines to be reduced to 200 ms.

2. Checking of healthiness of all the carrier protection of lines.

3. Zone 4 timer reset also will be checked in all the relays as its

function needs to be proper.

4. For all ICTs, Backup over current Protection to be made sensitive in

order to clear the bus fault immediately.

5. Bus Coupler over current protection setting to be made lower.

6. Re-trip feature if available in LBB should also be enabled to take

one more attempt of breaker opening.

7. Healthiness of all Protection i.e. both Main and Backup shall be

ensured.

The following outages will require for integrating all feeders in new bus bar

protection scheme:

Sr.No.

Name of equipment/TransformerOutage

dateFrom To

496th OCC AGENDA

1 400/220 KV 315 MVA ICT.01 15.7.17 14:00 18:00

2 400/2202 KV 315 MVA ICT.02 16.7.17 08:00 12:00

3 400/220 KV 315 MVA ICT.03 16.7.17 14:00 18:00

4 400/2202 KV 315 MVA ICT.04 17.7.17 08:00 12:00

5 400 KV Vadavi-Dehgam-1 17.7.17 14:00 18:00

6 400 KV Vadavi-Dehgam-2 18.7.17 08:00 12:00

7 400 KV B/C 18.7.17 14:00 18:00

8 400 KV 50 MVAR Reactor 19.7.17 08:00 12:00

9 400 KV 125 MVAR Reactor 19.7.17 14:00 18:00

10 400 KV Vadavi-Halvad-1 20.7.17 08:00 12:00

11 400 KV Vadavi-Halvad-2 20.7.17 14:00 18:00

12 400/220 KV 315 MVA ICT.01 29.7.17 08:00 18:00

13 400 KV Vadavi-Kansari-1 29.7.17 08:00 18:00

14 400/220 KV 315 MVA ICT.02 30.7.17 08:00 18:00

15 400 KV Vadavi-Kansari-2 30.7.17 08:00 18:00

16 400/220 KV 315 MVA ICT.03 31.7.17 08:00 18:00

17 400 KV Vadavi-Choraniya-1 31.7.17 08:00 18:00

18 400/220 KV 315 MVA ICT.04 01.8.17 08:00 18:00

19 400 KV Vadavi-Choraniya-2 01.8.17 08:00 18:00

20 400 KV Vadavi-Halvad-1 Bay 02.8.17 08:00 18:00

21 400 KV Vadavi-Bhachau-1 02.8.17 08:00 18:00

22 400 KV Vadavi-Halvad-2 Bay 03.8.17 08:00 18:00

23 400 KV Vadavi-Bhachau-2 03.8.17 08:00 18:00

24 400 KV Vadavi-Dehgam-1 04.8.17 08:00 18:00

25 400 KV Vadavi-Dehgam-2) 05.8.17 08:00 18:00

26 400 KV 50 MVAR Reactor 07.8.17 08:00 18:00

27400 KV 125 MVAR Reactor/ TBC

Bay08.8.17 08:00 18:00

28 400 KV Bus-Coupler Bay 09.8.17 08:00 18:00


496th OCC AGENDA

8.9 REVIEW OF EXISTING OUTAGE PROCEDURE:


as per the existing procedure, the important elements outages which are not taken

up OCCM i.e. post OCC outages shall have to be placed in Google sheet of WRLDC

Reliability at least three days in advance and sent for consent of WRPC as well as

WRLDC. After consenting by WRPC, WRLDC is confirming / denying the outages.

Many times, field offices are requesting outages one or two days in advance for only

three to four hours stating various reasons like testing, hot point attending,

construction work, OEM confirmation for particular job etc. These outages are to be

confirmed on a day ahead basis. Many outages are Intra State outages and not

affecting ATC between Intra State / Inter State. Some time, field officers are

requesting outages to put auto reclose on non-auto mode for safety purpose. In thisregard, SLDC Gujarat is suggesting WRPC/WRLDC to take initiative bycreating and sharing Google sheet especially for Post OCC outages havingfollowing features:

1. Sr. No.

2. Name of element

3. Whether Intra State / Inter State element

4. From Date / Time

5. To date / Time

6. Requesting Agency

7. Reason

8. Contingency plan by concerned SLDC

9. Requirement of deferment of OCC approved outages by concerned SLDC

10. WRPC consent (Yes / No)

11. WRLDC consent

The above requirement of outages shall be processed by WRPC /WRLDC on

day ahead before 14:00 Hrs. It will save time of communication / ambiguity

created between SLDC CR – WRLDC CR. Also, it helps to facilitate outages

timely in real-time without any delay.


496th OCC AGENDA

8.10 TRIPPING OF 400 KV KOTRA - LARA LINE 1&2 AND SUBSEQUENTPOWER FAILURE AT NTPC LARA :

AGM, NTPC Raipur informed that on 27/05/2017 at 18:34:51:511 hours (GPSsynchronized) 400 KV Kotra-Lara Line 1 CB (403 & 402) Y-Phase opened at LaraEnd on Zone 1 fault (Y-ph to Earth, 0.68 KA at 13.6 KM). DR & SOE at Lara end isenclosed. As informed, 400 KV Kotra-Lara Line 1 Y – Phase also opened at thesame time at Kotra End on Z1 Fault (Y-ph to Earth, around 50KA at 3.6 KM).Subsequently auto reclosing was in process, meanwhile both the 400 KV Kotra –Lara Lines 1 & 2 tripped at Kotra End on overvoltage stage 2, resulting in total powerfailure at NTPC, Lara 400 KV Switchyard. At Lara End CB 403 & 402 got Tripped(DT received) and CB 401, 404, 405, 406, 410, 411 & 412 remained in closedcondition. It is to mention here that presently NTPC, Lara is being fed from 02number of 400KV lines namely Kotra-Lara line 1 & 2. Our both the constructionpower feeders (33 KV from Kotra & Jhalmala S/S of CSPDCL) also tripped atsource.For the occurrence as above, in case of a single phase to earth fault, tripping of boththe 400 KV lines at Kotra end is a serious concern as it led to total power failure atNTPC, Lara. Due to this all commissioning activity was affected at NTPC, Lara.


8.11 TECHNICAL MINIMUM SCHEDULING :

AGM, NTPC Raipur informed that as per Clause 6.3B of IEGC 4th amendment, “Thetechnical minimum for operation in respect of a unit or units of a CentralGenerating Station of inter-State Generating Station shall be 55% of MCRloading or installed capacity of the unit of at generating station.” The technicalminimum level is determined taking into account stability, reliability and safety ofunits operation at partial load.

But it is observed that RLDC considers technical minimum as 55% of DC declaredby the generator instead of 55% of gross generation less normative AEC of the units.

Whenever due to equipment problem, coal or ash handling problem or wet coalissue, DC declared by the generator is less than normative DC, technical minimumrunning of the units (i.e. 55% of gross generation less normative AEC) will notchange.

Technical minimum of a 500MW unit is as follow:

Unit gross gen=500 MW,

496th OCC AGENDA

Normative Aux Energy Consumption = 5.75%

EX-bus technical min = 500*(1-5.75/100)*0.55 = 259 MW

(The level of technical minimum will not change with DC declared by Generator)

Thus technical minimum of the unit is constant, is not depending on DC declared byGenerator. The same technical minimum may please be incorporated in case oflowering of schedule of Generating station in the software of POSOCO.


8.12 DECLARATION OF DECLARED CAPACITY OF GENERATORAGM, NTPC, Vindhyachal informed that with the implementation of new regulations

of CERC in relations to technical minimum scheduling, it is instructed to generators

by M/S POSOCO to declare DC limited up to 100% of normative DC. Accordingly

generators had started declaring DC up to 100% of normative level.

In regulation of CERC, it is mentioned that respected SLDC / RLDC had to restrict

scheduling up to normative level so that generators can have sufficient margin to

raise load when RGMO operation come into vogue. Thus it may be concluded that

CERC does not restrict generator to limit their respective DC up to normative level .


8.13 REQUIREMENT OF ADDITIONAL 765KV , 3X80 MVAR BUS REACTOR AT765KV DURG PSAGM, PGCIL Raipur informed that the 765kV Durg PS has connected with following

transmission elements

a) 765kV D/c Durg-Kotra line with Non –Switchable 3x80MVAr LR

b) 765kV D/c Durg-Champa line with Non –Switchable 3x80MVAr LR

c) 765kV D/c Durg-Wardha-1&2 line with Switchable 3x80MVAr LR

d) 765kV D/c Durg-Wardha-3&4 line with Switchable 3x80MVAr LR

e) 2 nos , 1500MVA ICTs

f) 1 no 3x80MVAr Bus Reactor

The 765kv Bus voltage is continuously high even after switching off some Line and

taking L/R as Bus reactor, the 765kV Bus Voltage & frequency graphs is shown

below for last 12 days

496th OCC AGENDA

Keeping in view of continuously high voltage, which is detrimental to equipment , it

is propose to installed a additional 765kV, 3x80MVAr Bus Reactor at Durg PS to

control the high Voltage.


8.14 REQUEST FOR CONSIDERING OUTAGES REQUIRED FORCONSTRUCTIONS WORKS FROM THE DATE OF PRESENT OCC TO NEXTOCC DATE

AGM, PGCIL Vadodara informed that presently the outages required for succeeding

month for various ongoing constructions works of Substations and Transmission

lines are planned on tentative dates in advance and same got approved in current

OCC meeting. However, in many cases, these OCC approved outages are not being

availed in real time due to various constraints. Also some construction related

shutdown cannot be conceived well in advance. Hence, it is proposed the outagesrequired for constructions works shall be considered from the date of presentOCC to next OCC meeting to facilitate proper utilisation of approved outages.


496th OCC AGENDA

9. WRLDC AGENDA ITEMS:

1. STM-1 communication link between WRLDC and Asoj

Providing STM-1 communication link between WRLDC and Asoj is being

continuously taken up by WRLDC in OCC forum and URTDSM meeting from last 3

months. In 494thOCCM,WRTS-I assured that efforts will be made for commissioning

STM-1 by 30th April 17 but so far no significant progress is achieved in providing

STM-1. As discussed in 495thOCCM, GM WRLDC took up the matter directly with

top management of BSNL and it emerged that LOA placed on BSNL Faridabad was

a surprise to BSNL Faridabad as they had never given any feasibility confirmation.

Subsequently it was found that feasibility was given by BSNL Baroda. GM WRLDC

directly talked to BSNL Baroda who confirmed that if order is given to them they will

immediately provision. Demand letter has been issued by BSNL Baroda and same

made available to POWERGRID on 2nd June 17.

POWERGRID to apprise present status.

2. Hot line voice communication between WRLDC and Substations/GeneratingStations

Status of integration of Orange Hotline phones at major stations in WR with WRLDC

is being discussed in OCC forums from 493rd OCC. The previous OCCM (495th

OCC) status and present status of integration of hotline phones is given below.

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496th OCC AGENDA



















496th OCC AGENDA

Status as per 495th OCC

Status as on 1st June 17

In WR-1working hotline phones to POWERGRID and IPP substations improved from

10 to 12 & 1 to 2.

No improvement in integration of hotline phones in WR-2 after 495th OCC.

Goa SLDC at Madgao started functioning from 1st June 2017 but hot linephone is not working.

POWERGRID to update the progress.

3. Primary Response by Generators

The primary response of WR generating units for last three Grid Events was

discussed in the 495th OCC. The primary response of KWPCL, KSK, RKM and DB

Power was NIL. The response of CGPL was very sluggish. The matter was

subsequently followed up with the concerned generating stations. Summary is as

below:

GeneratingStation

Remarks Status

KWPCL Primary response was NIL. KWPCL was advised to correct

the logic as per IEGC. KWPCL

informed that their units are

496th OCC AGENDA




10 to 12 & 1 to 2.









below:

GeneratingStation

Remarks Status




496th OCC AGENDA




10 to 12 & 1 to 2.









below:

GeneratingStation

Remarks Status




496th OCC AGENDA

under shutdown and the

RGMO logic shall also be

corrected. KWPCL to update

the present status

KSK Primary response was NIL. KSK

informed that they have inhibited

the generating units from

responding between 49.90 to

50.05 Hz.

KSK was advised to correct

the logic as per IEGC.

KSK to update the present

status of fine tuning RGMO

logic

RKM Primary response was positive

but inadequate. The increase in

generation during the frequency

dip was inadequate.

RKM to update the reason for

inadequate response

DB Power Primary response was NIL. DB

Power informed that response

was poor due to deterioration in

coal quality and operation in

Valve Wide Open (VWO).

DB Power was advised that

IEGC 5th amendment prohibit

generating units to be operated

with VWO.

DB Power to intimate actions

being taken.

CGPL Primary Response is very

sluggish.

Informed that issue was taken

up with OEM and fine tuning of

RGMO will be done by

Sept’17.

CGPL to intimate the present

status

Sasan Primary Response calculated

using WRLDC SCADA data was

seen to be negligible. However

response calculated using data

submitted by Sasan was around

15%. After deliberation it was

understood that the SCADA data

transmitted from Sasan to

Sasan to apprise actions being

taken to address the SCADA

related issue.

496th OCC AGENDA

WRLDC only when the change is

greater than a certain threshold.

All above stations to apprise OCC regarding actions being taken to improvefrequency response

4. Extension of RGMO status to SLDC / WRLDCOut of 26 generating stations covering 80 units, 24 generating stations covering 74

units have been mapped at WRLDC. With the support of generating stations, so far

WRLDC integrated 93% of generators RGMO status in WRLDC SCADA. The

snapshot of RGMO status in SCADA as on 31th May-17 is shown below.

Generating stations whose signal integration is still pending are tabulated below.

496th OCC AGENDA

S.No Station No. of Units Current Status Remarks

1 GMR Warora Unit2

1 Pending Informed that the signalextension shall be donein June’17

2 MCCPL 1 Pending Signal extended up toACBIL gateway.However signal was notconfigured in Gateway.

3 BALCO 4 Pending Informed that the signalconfiguration was doneand signal extensionshall be completed byend of May’17.

Generating stations MCCPL and BALCO to give the plan for integrating RGMO

status to WRLDC.

Extending RGMO Status signal to SLDC/WRLDC is been a regular agenda from

491 OCC. State SLDCs may apprise OCC, the number of state generating units

whose RGMO signal was extended to SLDCs.

5. CERC Regulations for Communication System for Inter-State transmissionof Electricity, 2017

On 15th May, 2017 CERC notified regulations for “Communication System for Inter-

State transmission of Electricity”. These regulations shall come into force w.e.f. 1st

July 2017.

These regulations lay down the rules, guidelines and standards to be followed by

various persons and participants in the system for continuous availability of data for

system operation and control including market operations. Further, the regulations

deal with the planning, implementation, operation and maintenance and up-gradation

of reliable communication system for all communication requirements including

exchange of data for integrated operation of National Grid.

Few highlights of these regulations are quoted below

496th OCC AGENDA

Quote

“SCOPE and APPLICABILITY:

(i) These regulations shall apply to the communication infrastructure to be used for

data communication and tele -protection for the power system at National, Regional

and inter-State level and shall also include the power system at the State level till

appropriate regulation on Communication is framed by the respective State

Electricity Regulatory Commissions.

(ii) All Users, SLDCs, RLDCs, NLDC, CEA, CTU, STUs, RPCs, REMC, FSP and

Power Exchanges shall abide by the principles and procedure as applicable to them

in accordance with these regulations.”

Unquote

“Role of National Power Committee (NPC) and Regional Power Committee(RPC):

(i) NPC shall be responsible for issuance of the guidelines with the approval of the

Commission on “Availability of Communication System” in consultation with RPCs,

RLDCs, CTU, CEA and other stakeholders within a period of two months from the

date of notification of these regulations.

(ii) The RPC Secretariat shall certify the availability of communication equipment for

CTU, ISGS, RLDCs, NLDC, SLDCs based on the data furnished by RLDC.

(iii) The RPC Secretariat shall monitor instances of non-compliance of these

regulations as amended from time to time and make endeavor to sort out the issues

in the respective region in such a way that cases of non-compliance are prevented in

future. Unresolved issues and non-compliance of any of the provisions of these

regulations shall be reported by the Member Secretary of respective RPC to the

Commission.

(iv) The RPC Secretariat shall be responsible for outage planning for communication

system in its region. RPC Secretariat shall process outage planning such that

uninterrupted communication system is ensured.”

Unquote

496th OCC AGENDA

Quote

“COMMUNICATION SYSTEM AVAILABILITY:

All users of CTU, NLDC, RLDCs, SLDCs, STUs shall maintain the communication

channel availability at 99.9% annually:

Provided that with back up communication system, the availability of communication

system should be 100%.”

Unquote

For information to OCC forum

6. Telemetry issues

Details of utilities whose data is reporting to WRLDC via unreliable communication

links and whose data is highly intermittent is given below. These utilities may apprise

OCC actions being initiated to ensure 100 % data availability to WRLDC.

Sr. no. Node Constraints Remarks

1 BALCO Communication link is GPRS sincecommissioning even after permanentconnectivity.

Primary FO link uptoDharamjaygarh asper connectivity agreement to beexpedited.

Secondary path through PLCC needs tobe established.

In 495th OCC, BALCOintimated that reliablecommunication linkshall be provided byend of May’17 or firstweek of June’17.Balco to intimate thepresent status

2 JP Nigrie Communication link is GPRS sincecommissioning even after permanentconnectivity.

Primary link uptoSatna as per connectivityagreement to be expedited.

Secondary path needs to be established.

JP Nigrie informedthat primary linkuptoSatna shall beestablished by 2ndweek of July’17. JPNigrie to expedite thesame.

3 LANCO Primary link uptoBilaspur as perconnectivity agreement through PLCCwas established.

LANCO to intimatethe status forsecondary path

496th OCC AGENDA

Secondary path is not yet established.

4 RKM Primary link FO uptoKotra as perconnectivity agreement established

Secondary path through PLCC alsoestablished.

However both the channels are reportingto single gate way.

RKM to intimate thestatus of extendingsecondary channel tosecondary gateway.

6 IEPL The telemetry is highly intermittent Maharashtra mayupdate the status

7 400kVLonikhand II

No telemetry since commissioning Maharashtra mayupdate the status

8 Tillari The telemetry of 220kV Tillari which haveinterfacing line with Goa grid is notavailable causing problems in drawlcalculations of Goa and Maharashtra

Maharashtra mayupdate the status

9 Goa The telemetry needs to be validated withactual field values for Ponda, Verna,Xeldem, Kadamba, Tivim, Cuncolim. Thetelemetry of Amona not available

Goa may intimate thestatus of Amona

10 DNH The telemetry of DNH not available sincelong

DNH may update thestatus

There are 22central sector765 kV substations in WR. Out of 22 substations only 8

substations (Aurnagabad, Solapur, Bilaspur, Seoni, Bhopal-BDTCL, Dhule-BDTCL,

Sipat and Sasan)are having primary as well as secondary communication channels.

Importance of ensuring continuity of SCADA data of 765 kV nodes to WRLDC via

secondary communication channel in case of failure of primary communication

channel is discussed in 495th OCCM. Further considering power flow and

connectivity, list of important 765 kV nodes whose secondary channel to be

established on upfront basis was given in 495th OCCM.

POWERGRID may apprise OCC the present status of establishment ofsecondary communication channels for nodes given below.

Sr.no.

Node Constraints Status as per 495OCCM

496th OCC AGENDA

1 ChampaHVDC

Primary communication channel isTelecom

No secondary communication Channel

Informed thatsecondary channelshall be establishedby mid-June’17.

2 Wardha Primary Communication channel isRaipur-Wardha PLCC link.


Informed thatsecondary channelthrough PLCC shallbe established within1 Month.

3 Vadodara Secondary link is GPRS. Informed thatsecondary channelshall be establishedby June’17.

4 JabalpurPooling

Primary communication link is fibre.


Informed thatsecondary channelshall be establishedby July’17.

7. Telemetry of RESWith the support of Wind developers and Maharashtra SLDC, in the month of May’17

the observability of RES in Maharashtra has drastically improved.

Following Wind developers are sending pooling data to WLRDC via FTP

S.No Wind developer Installed capacity of Wind whose data is

being pooled through FTP

(As informed by Wind Developer)

1 Suzlon 1662 MW

2 Regen 508 MW

3 Continum 120 MW

3 Gamesha 80 MW

4 Panama 72 MW

Total 2442 MW

Following Wind developer’s data are in pipeline for pooling data to WLRDC via

FTP

1. Senvion

2. TS Wind

3. Wind World

4. Westas

496th OCC AGENDA

5. Shri Maruthi

6. Enercon

7. Inox

The present status of Telemetred RES at WRLDC is as follows

State/Region RES InstalledCapacity

(Wind+Solar) inMW

Telemetered RESCapacity at WRLDC(Wind+Solar) in MW

% of RESVisibility/Observability

at SLDC/WRLDC

Gujarat 5740(4622+1118)

5734 (4616+1118) 99

Maharashtra 5052 (4662+390) 2832 (2442+390) 56MadhyaPradesh

3036 (2239+797) 2564 (2076+488) 84

Chhattisgarh 76 (0+76) 66 (0+66) 87Diu 9 (0+9) 0 0Daman 1 (0+1) 0 0WR 13838

(11523+2315)8326 60

Maharashtra SLDC to apprise OCC the present status of RES Telemetryintegration.

8. Compliance to Low Voltage Ride Through (LVRT) by Wind Generators

Compliance to LVRT by wind generators is being deliberated in OCC forums from

493rd OCC. In 494th OCC, Maharashtra, Gujarat and Madhya Pradesh SLDC’s

agreed to submit LVRT compliance in prescribed format given by WRLDC.

Till now only DJ Energy private limited in MP has confirmed LVRT Compliance for

170 MW wind power project at Daloda substation.

Maharashtra, Gujarat and Madhya Pradesh SLDC’s may apprise OCC thefollowing

a. Present status of compilation of LVRT compliance details andsubmission to WRPC and WRLDC

496th OCC AGENDA

b. The present methodology of checking LVRT compliance in vogue forgiving clearance to wind generators for integration into grid.

9. Staggering of loads in Maharashtra during load change-over in EveningHours

Almost every day in the evening hours there is a load change-over in Maharashtra

system. The load during this exercise is reduced by 1500-3500 MW within two hours.

Typical plot of demand vs Maharashtra generation, Schedule vs Actual Drawl of

Maharashtra is shown below.

496th OCC AGENDA

It was observed that during several time blocks the demand is ramping down at

the rate of 26-70 MW/Min, whereas the internal generation is ramping down at

the rate of 2 - 8 MW/Min only and the drawal schedule is ramping down at 7-16

MW/min. Many a time the generation is increased even while there is a

downward trend in demand and vice versa. Thus there is a mismatch between

instantaneous demand and generation of Maharashtra. This is resulting in

deviation of Maharashtra drawal by 800-1200 MW.

Imbalance in the grid causes large variation in grid frequency and voltages and

consequential tripping of EHV lines on Over-voltage. For instance on 21st May

17, 765 kV Wardha-Aurangabad-I tripped on high voltage at 18:03 Hrs even while

ckt-II and Ckt-IV were already kept manually open to regulate voltage. Such

incidents are a threat to grid security.

The large variation in Maharashtra demand has a major influence on the

Regional demand profile.The WR regional demand ramps down between 16 Hrs

to 1830 Hrs and then increases between 19-20 Hrs. Regional Demand ramp

down rate is in the range of 600-850 MW/Time Block (15 Mins) whereas ramp up

rate of demand is in the range 300-600 MW/Time Block. This results in large

variation in grid frequency as illustrated below.

496th OCC AGENDA

In view of the above, disconnection /connection of loads in Maharashtra may be

carried out in a staggered manner and the internal generation may be regulated

suitably to avoid large variations in grid parameters. Other measures such as

demand forecasting and reliable telemetry of drawl also need to be established

for better monitoring and resource scheduling at SLDC.

Maharashtra SLDC may apprise OCC

Disconnection /connection of loads in Maharashtra in staggeredmanner

Regulation of internal generation to avoid large deviation fromschedule and variations in grid parameters.

Measures like demand forecasting, reliable telemetry of drawl andresource scheduling being taken

10. VAR regulation by Wind Generators to control voltage in SouthMaharashtra

It was observed that upon start of monsoon demand in Maharashtra reduces by

4000-5000 MW and demand during night hours is around 12000-13000 MW. Further

high penetration of wind generation is observed atKarad, Kolhapur and

Lambotiareas. There are instances where large number of EHV lines tripped on over

voltage in South Maharashtra resulting in blackout at Kolhapur, Karad and Mapusa

substations and partial blackout in Goa system.

496th OCC AGENDA

















496th OCC AGENDA

















496th OCC AGENDA

In past, even after initiating all actionslike taking bus reactors into service, condenser

mode of operation at Koyna and opening lightly loaded lines, high voltages are faced

at400 kV Solapur, Kolhapur,Parli, Pune GIS, Lamboti, Girwali, Mapusa and 765/400

kVSolapur PG substations in night hours.

In view of above Maharashtra SLDC may instruct all the wind generators insouth Maharashtra to absorb VAR and avoid injecting VAR at point ofconnection to contain high voltages.

11. Performance review of MVAR absorption by Generating Stations to ControlHigh voltage

It was observed that during the monsoon, demand in WR reduces by 4000-5000

MW. In the past, even after taking all Switchable Shunt Reactors in service and

opening lightly loaded lines, high voltages are observed at most of the EHV nodes

during night hours. In view of inadequate shunt reactive compensation, the

generating units are being advised to contribute in voltage regulation by operating

their units in under-excited mode (absorb Reactive Power) within the capability

curve. The issue was discussed by WRLDC in 494th OCCM and WRLDC vide letter

dated 21st Mar 17 had advised generators not to inject reactive power into the grid

even when the bus voltage is above nominal.

The MW, MVAR and Voltage of generating units was analyzed for the month of May

2017 with the help of SCADA data available at WRLDC. The list of generators

injecting MVAR into the grid even when the bus voltage is above nominal are given

below.

1. IPP : DB Power, Essar Mahan, KSK Mahanadi, RKM

2. ISGS: KSTPS-I

3. Generators under the control of Gujarat SLDC

a. EssarVadinar (U#1 & U#2)

b. Wanakbori (U#4, U#5 & U#6)

4. Generators under the control of Maharashtra SLDC

a. Koradi (U#8 & U#9)

b. Bhuswal (U#4 & U#5)

496th OCC AGENDA

c. Jaigad (U#3 & U#4)

5. Generators under the control of Madhya Pradesh SLDC

a. Satpura (U#10 & U#11)

b. Singhaji (U#1 & U#2)

6. Generators under the control of Chhattisgarh SLDC

a. Korba West (U#3 & U#4)

It was observed that almost the same list of generators mentioned in 494th OCCM

are continuing to inject MVAR into grideven when voltage is above nominal.

Generating Stations and SLDCs to apprise OCC of the actions being taken.

12. Progress of commissioning BRs in MaharashtraAs per 495 OCCM expected date of commissioning 125MVAr busreactors planned

at various locations in Maharashtra are given below.

SI.No

400 kVSubstation

Size (MVAr) Expected date ofcommissioning(As informed in 495OCCM)

1 Nanded 125 June-172 Sholapur 125 June-17

3 Kolhapur 125 June-17

4 Akola 125 June-17

In34th standing committee MSETCL informed that in addition to above,18Nos of

125MVArbus reactors are planned at various high voltage nodes in Maharashtra.

These reactors were scheduled to be commissioned in March 2015 but are

delayed indefinitely.

The issue of very high voltages observed in South Maharashtra was discussed

in485thand 486thOCCM. In 489th OCCM WRLDC has discussed reactive energy

charges paid by MSETCL for reactive power interchange at ISTS points in

Maharashtra during monsoon (June-Sept 16). In 2016-17 Monsoon period itself

Maharashtra has paid around Rs 8 Crores to the REC pool account in lieu of

MVAR injection at High voltages.

496th OCC AGENDA

Maharashtra SLDC may apprise OCC the following

Status of commissioning activities of 125 MVAr BRs planned atNanded, Solapur-MS, Kolhapur and Akola

Status of additional 18 reactors planned at various locations inMaharashtra

13. Review of ICT taps for better voltage regulation& operation of multiple unitsin synchronous condenser mode at Koyna /SSP/Ghatghar

Due to seasonal variations the demand pattern changes. Due to low demand in

monsoon and high penetration of wind generation MVAr injections are observed

from 220 kV to 400 kV side resulting in persistent high voltage at EHV nodes. In

past MVAr injection from 220kV to 400 kV side are observed at following

locations

Kolhapur (3x315 MVA)

Karad (3x315 MVA)

Nanded(2x500 MVA)

Chandrapur (2x315 MVA)

Pune(PG) (3x315 MVA)

All SLDCs are advised to monitor MVAr injection from 220 kV to 400 kV sideand explore/review ICT tap positions to avoid high voltages in Grid.

SLDC Maharashtra to review ICT tap positions at above mentionedlocations

SLDC Maharashtra and NCA to explore operating all machines at Koyna,Ghatghar and SSP in condenser mode at a time during night hours. If anyconstraints may be elaborated.

496th OCC AGENDA

14. Status of compliance of IEGC 5.2 by Gas Stations

As per IEGC 5th amendment notified by CERC on 12th April 2017, allgas

turbines of capacity more than 50 MW each shall be operated under restricted

governor mode of operation with effect from the date 01.10.2017. The central gas

generating stations in WR are given below

1. RGPPL (2x205+1x230)+(2x213+237.54)+(2x213+237.55): 1967.08 MW2. Kawas (4x106+2x116): 656.20 MW3. Gandhar (3x144.3+1x224.49): 657.39 MW4. DGEN (3x400): 1200 MW

Above generating stations to apprise OCC regarding actions being taken tocomply with IEGC regulations

All SLDCs to apprise status of state gas generating stations regarding operationof gas turbines under restricted governor mode of operation

15. Status of prolonged outage of Grid Elements

As per information available at WRLDC as on 1st June 2017, following EHV

elements are under prolonged outage.

S.No

Element Name OwnerOutage

ReasonDate Time

1

50 MVAR LR of 400 kVPARLI(MS)-LONIKAND (NEW)-2at PARLI (MS)

MSETCL

30-10-2015 19:10

Fire Accident inL/R.

2 240 MVAR BR at 765 kV TIRODA ATIL21-03-

2016 20:40Oil leakage andTesting works

3400 kV RAIPUR-RAIGARH-II FSCAND TCSC PGCIL

06-07-2016 07:48 Fire in TCSC

4400 kV RAIPUR- RAIGARH-ITCSC PGCIL

08-07-2016 12:06

Main ControlSystemComputer Failure

5

50 MVAR LR of 400 kVKANSARI-BHINMAL-1 atKANSARI PGCIL

05-09-2016 20:45

Gases andMoistureObserved inReactor

6125 MVAR BR at 400 kV GMR-Raipur GCEL

25-10-2016 14:22

Buchholz relayprotection

496th OCC AGENDA

operated

7 400 kV BUS II at Balco BALCO13-12-

2016 19:54CB refurbishmentwork

8 400/1200 kV ICT-2 AT BINA(PG) PGCIL12-03-

2017 06:31

Buchholz relayprotectionoperated

9

50 MVAR LR of 400 kVBHADRAWATI-RAIPUR-1 atBHADRAWATI PGCIL

20-04-2017 10:28

Replacement ofgaskets, offlineoil filtration,painting, cleaningand testing.

10 315 MVA ICT-2 at BALCO BALCO18-05-

2017 06:19

For Bus2rectification workat BALCO.

Respective utilities may update the present status of actions being taken forearly restoration of the elements.

16. Availing EHV Element Outages in Emergency due to insulator failures

It was observed that utilities are requesting for emergency outage on EHV elements

frequently. In most of the cases the reason for availing emergency outage is failure

of insulators or insulator flashover. Failure of insulators or insulator flash over can be

avoided through proper planning of outages and maintenance.

Recently MSETCL and DB Power are requesting for emergency outages on

1. 500 kV Chandrapur-Padghe Pole-I & II to rectify failure of insulators on 18th

May and 22nd May 17

2. 400 kV DB power-Kotra-I & II for replacement of broken insulators on 30th and

31st May 17

All utilities are advised to plan the outages in advance for maintenanceactivities like insulators replacements such that availing the outage inemergency may not arise.

496th OCC AGENDA

ITEM No. 10: DATE AND VENUE OF NEXT OCC MEETING495th OCC reviewed the meeting roster and finalized sheet is enclosed at Annexure-10.

Accordingly the 496th OCC meeting will be hosted by WRPC in the month of June, 2017

on 13/06/17 whereas 497th OCC meeting will be hosted by Torrent Power in the month

of July 2017. The procedure related to this is required to be discussed in the meeting.

The Sub- Committee may like to note as above

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

Anaulagnak 2.1

maah ma[- 2017

1. INTEGRATED OVER AN-HOURek GaMTo maoM samaakilat

1.1 MAXIMUM FREQUENCY 50.18 Hz. BETWEEN 1700 Hrs & 1800 Hrs Hrs. ON 21.05.2017

AiQaktma AavaRi%t

1.2 MINIMUM FREQUENCY 49.78 Hz. BETWEEN 2200 Hrs & 2300 Hrs Hrs. ON 02.05.2017

nyaUnatma AavaRi%t

1.3 AVERAGE FREQUENCY 49.99 Hz.

AaOsat AavaRi%t

2. INSTANTANEOUS ta%kailak

2.1 MAXIMUM FREQUENCY 50.26 Hz. AT 18:07:00 Hrs. ON 21.05.2017

AiQaktma AavaRi%t

2.2 MINIMUM FREQUENCY 49.64 Hz. AT 15:11:40 hrs Hrs. ON 11.05.2017

nyaUnatma AavaRi%t

3. %AGE OF TIME WHEN FREQUENCY WAS MAY 2017 APRIL 2017 MARCH 2017

AavaRi%t ka samaya p`itSat maoM

3.1 BELOW 48.5 Hz. 0.00 0.00 0.00

48.5 hT\ja ko naIcao3.2 BETWEEN 48.5 Hz. AND 48.8 Hz. 0.00 0.00 0.00

48.5 hT\ja AaOr 48.8 hT\ja ko baIca3.3 BETWEEN 48.8 Hz. AND 49.2 Hz. 0.00 0.00 0.00






50.05 hT\ja AaOr 51.5 hT\ja ko baIca3.9 ABOVE 51.5 Hz. 0.00 0.00 0.00

51.5 hT\ja ko }pr

4.1 NO. OF TIMES FREQUENCY 0 0 0

TOUCHED 48.80 Hz. AavaRi%t 48.80 hT\ja kao CUhI





maoM AavaRi%t ko AaMkD,aoM ka ivavarNa

FREQUENCY PARTICULARS DURING MAY 2017

(AS PER FREQUENCY REPORT OF WRLDC)

(piScama xao~ Baar p`oYaNa kond` kI AavaRi%t irpaoT- ko AaQaar pr)

मई2017

Voltage Profile during the month of May'2017 Annex-2.3

Date

Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min

1 415 400 421 405 412 396 417 403 415 401 415 400 410 384 416 409 422 4162 413 402 419 405 411 400 416 401 414 402 413 402 411 393 414 406 420 4133 413 401 419 404 409 396 414 402 415 403 414 402 412 393 415 409 420 4144 414 402 418 406 408 396 413 402 415 402 414 400 407 390 415 406 420 4145 417 402 420 405 410 396 416 402 416 403 415 401 412 393 414 406 420 4156 415 403 421 403 409 396 417 404 418 402 417 400 410 390 418 409 424 4167 423 400 427 409 417 397 422 405 422 407 422 404 415 384 420 410 425 4188 418 402 424 406 412 395 418 403 419 401 419 401 414 391 416 407 422 4159 420 401 424 406 414 397 421 404 420 402 419 402 417 392 417 408 423 416

10 416 402 421 404 411 395 418 403 414 399 415 399 408 393 416 407 423 41711 414 401 420 406 409 396 418 404 415 399 414 399 415 390 418 409 424 41712 414 401 419 407 409 396 416 403 414 400 413 400 410 391 416 409 423 41713 414 403 421 407 411 398 416 405 414 400 414 401 411 392 417 410 423 416

रायपुर रायगढ़Bhopal Khandwa Itarsi Damoh Nagda Indorer Gwalior

भोपाल खंडवा इटारसी दमोह नागदा इंदौरRaipur Raigarh

400kV 400kV 400kV 400kV 400kV 400kV 400kV 400kV 400kV

( )

,Power System Operation Corporation Ltd.

(A Government of India Enterprise)Western Regional Load Despatch Centre,Mumbai

13 414 403 421 407 411 398 416 405 414 400 414 401 411 392 417 410 423 41614 418 406 423 410 414 402 419 407 417 406 418 405 416 392 418 411 425 41815 414 400 421 408 411 397 416 403 416 402 414 401 414 389 416 409 422 41616 414 400 421 408 411 397 416 403 416 402 414 401 414 389 416 409 422 41617 415 400 422 407 410 397 418 403 416 402 415 400 409 391 417 407 423 41518 416 402 422 406 412 396 418 405 413 401 414 400 410 393 415 408 422 41619 417 402 424 410 411 396 419 404 414 401 414 401 411 394 418 410 423 41720 415 401 423 410 411 396 418 405 415 402 414 400 416 396 417 410 422 41521 419 401 428 408 415 397 422 406 419 404 418 403 417 394 421 413 425 41722 415 402 421 408 409 397 414 404 418 403 416 402 406 391 419 400 421 41123 418 401 423 404 412 394 415 406 416 397 416 398 410 394 424 400 426 41624 415 399 421 406 410 395 419 405 416 401 414 399 408 390 418 412 422 41525 414 397 423 409 410 396 412 406 417 403 416 402 408 391 420 411 424 41526 416 398 425 408 412 396 415 400 417 402 416 401 416 391 422 412 427 41627 417 398 423 407 412 395 418 404 417 402 415 399 409 389 422 411 423 41428 421 404 427 412 417 401 419 403 419 406 419 404 413 394 423 416 426 41429 419 400 424 384 414 400 426 389 417 405 416 403 416 393 422 384 425 38630 414 399 423 407 410 397 419 406 417 401 414 398 412 394 422 414 422 415

423 397 428 384 417 394 426 389 422 397 422 398 417 384 424 384 427 386

Date

Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min

1 413 406 419 409 425 403 419 395 417 404 425 407 430 410 412 398 422 4092 411 403 418 406 425 400 415 390 419 393 426 394 425 402 411 397 421 4093 412 405 417 409 426 406 415 392 413 393 422 394 425 398 411 397 423 4094 412 403 417 407 424 401 419 395 411 392 418 393 426 401 411 397 422 4085 411 404 418 408 425 402 418 390 410 397 418 399 427 400 412 397 423 4086 415 405 422 405 426 402 419 388 412 395 421 393 428 400 411 394 421 4067 417 407 423 412 430 408 423 396 416 400 421 402 429 407 414 401 422 4138 412 403 422 409 426 404 420 392 414 391 419 390 427 400 411 395 422 4069 414 404 423 407 428 401 418 389 408 386 419 388 400 400 413 397 419 408

10 412 404 423 409 428 401 420 388 410 387 416 386 422 385 412 395 420 40611 415 406 420 412 425 404 419 392 409 389 414 389 425 401 410 396 420 385

धुले बोईसर कलवा कराड़ असोज देहगामKarad Asoj Dehgam

400kV 400kV 400kV 400kV 400kV 400kV 400kVBhilai Wardha Dhule Parli Boisar Kalwa

400kV 400kV

( )



11 415 406 420 412 425 404 419 392 409 389 414 389 425 401 410 396 420 38512 413 405 421 413 426 406 421 392 411 396 417 396 427 398 410 395 420 40513 414 406 422 414 428 405 421 390 411 396 416 396 430 403 409 395 418 40614 415 408 423 413 425 405 424 396 414 399 421 402 431 407 411 399 421 41115 412 405 422 413 426 406 426 396 414 395 422 395 430 408 411 396 422 40616 412 405 422 413 426 406 426 396 414 395 422 395 430 408 411 396 422 40617 413 403 423 411 425 401 421 394 414 389 422 390 426 401 410 396 421 40018 412 404 421 410 424 403 420 394 412 391 417 392 426 399 409 395 420 40619 414 407 424 413 428 404 423 387 409 394 417 396 426 397 409 395 420 38220 413 406 422 415 428 408 421 396 408 393 417 397 427 401 409 393 421 38121 418 410 427 415 429 406 425 397 413 395 422 398 428 400 414 399 422 40022 415 408 422 414 426 404 418 396 412 393 420 394 426 408 415 396 427 40623 419 409 425 414 427 401 421 395 416 391 419 390 426 400 412 394 423 40624 414 408 421 413 426 404 421 390 411 393 420 395 426 400 413 397 424 40525 415 407 427 415 427 408 421 399 415 397 422 398 426 385 412 400 422 40826 418 407 426 412 428 407 423 392 417 398 425 398 427 400 412 396 420 40527 418 407 424 414 427 404 422 398 412 394 420 398 427 400 410 396 419 40528 420 412 425 415 429 406 423 397 413 394 423 403 432 408 412 400 419 40929 419 410 426 387 429 401 423 398 410 391 417 394 425 400 412 398 420 40030 419 410 425 415 428 406 424 400 411 392 423 398 427 400 412 395 424 409

420 403 427 387 430 400 426 387 419 386 426 386 432 385 415 393 427 381

( )



Date

Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min

1 419 408 410 401 415 406 416 401 426 398 414 404 400 400 416 4002 418 409 412 400 418 406 418 390 425 390 415 389 400 400 417 3973 418 409 411 401 414 406 413 392 424 390 411 390 408 395 418 3974 418 409 411 402 415 407 412 391 424 393 409 389 413 393 416 3965 418 409 412 403 416 406 412 396 431 392 410 393 413 397 416 3946 419 409 413 401 418 406 413 393 436 396 411 391 414 396 414 3937 419 410 409 401 415 408 414 399 435 404 412 397 416 401 416 3958 419 407 410 401 416 407 414 390 431 402 412 388 414 391 415 3919 418 409 410 401 416 406 409 387 422 391 406 389 408 388 414 395

10 416 408 409 401 414 407 409 384 421 392 407 384 409 387 412 39011 417 408 411 400 416 407 408 389 420 393 405 387 409 388 411 393

कासोर जेतपुर वापी मापुसा कला मगरवाड़ा हज़ीराKasor Jetpur Amreli Vapi Mapusa Kala Magarwada Hazira

400kV 400kV400kV 400kV 400kV 400kV 400kV 400kV

( )



11 417 408 411 400 416 407 408 389 420 393 405 387 409 388 411 39312 417 408 411 401 416 406 410 394 425 392 408 392 410 393 411 39113 415 407 411 398 416 403 410 394 429 397 407 391 408 393 410 38814 417 408 411 402 416 407 415 397 432 399 413 394 414 399 413 39215 418 408 410 400 415 405 413 395 429 401 411 393 411 394 415 39516 418 408 410 400 415 405 413 395 429 401 411 393 411 394 415 39517 419 408 411 403 416 408 413 389 427 399 411 387 413 391 412 38818 417 408 410 402 415 407 412 390 427 390 411 389 412 392 412 38719 418 409 411 404 414 407 409 393 426 391 408 392 412 394 412 39420 418 408 411 402 417 407 410 394 426 395 408 392 410 394 413 39221 420 410 411 403 415 408 414 396 429 393 413 394 415 397 417 39322 420 409 413 402 418 400 413 394 428 393 411 392 413 396 417 39323 420 407 411 402 415 405 416 392 427 399 415 391 417 395 416 39124 420 408 411 402 416 406 414 393 427 400 412 392 414 394 413 38925 419 408 412 402 416 406 417 398 426 396 414 395 417 399 415 39526 419 408 413 402 418 405 416 397 426 395 413 394 414 397 414 39227 417 408 412 399 418 404 414 396 424 395 411 393 413 394 413 39328 418 410 410 401 415 397 414 395 426 396 411 392 413 395 414 39129 418 410 411 401 417 404 412 395 425 394 409 393 411 395 411 39030 420 408 411 401 415 405 413 392 430 402 410 388 413 391 414 386

420 407 413 398 419 397 418 384 436 390 415 384 417 387 418 386

( )



Date

Max Min Max Min Max Max Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min

1 770 755 777 748 800 789 801 789 785 758 793 784 790 745 770 759 788 767 801 776 783 751 777 7502 771 761 778 758 796 783 796 782 782 755 793 782 788 753 769 757 786 764 801 771 781 758 781 7513 770 758 775 760 797 785 797 785 783 757 791 782 788 756 766 755 784 765 802 775 780 758 780 7514 769 757 776 755 797 785 796 784 782 758 792 779 786 755 765 754 783 765 797 779 780 757 775 7555 769 754 781 754 800 789 799 789 785 755 796 783 792 759 770 756 791 766 803 775 786 759 787 7576 768 756 774 753 806 791 807 791 785 750 801 786 786 753 774 763 791 766 808 772 782 757 790 7547 780 754 792 750 807 794 807 793 792 764 801 791 798 746 774 761 798 772 810 782 797 752 793 7548 774 759 782 757 803 790 803 790 785 753 797 787 791 758 769 756 793 763 808 774 788 761 789 7519 779 756 791 757 803 790 804 790 797 758 806 787 799 762 771 757 792 764 804 774 793 757 799 754

10 775 759 787 763 805 791 806 792 793 750 797 787 792 764 773 758 792 765 806 775 789 766 790 75411 771 754 779 753 805 794 805 793 786 756 803 792 793 755 775 762 788 766 799 779 787 762 786 756

Binaसासन सतना तमनार कोटरा वडोदरा बीना इंदौरSasan Satna Tamnar Kotra Vadodara

765Kv 765Kv 765KvIndore

765Kv 765Kv 765Kv 765Kv 765Kv 765Kv 765Kv 765Kv 765KvDurg Gwalior Sipat Seoni Wardha

( )



11 771 754 779 753 805 794 805 793 786 756 803 792 793 755 775 762 788 766 799 779 787 762 786 75612 767 754 777 754 803 794 803 793 782 756 796 793 791 755 773 762 785 768 800 779 785 762 785 75713 775 761 784 761 803 790 803 789 783 753 796 787 791 760 775 764 789 770 799 778 788 766 782 75814 778 763 789 763 807 793 808 792 786 762 805 791 799 757 774 761 791 771 802 776 794 767 788 76615 777 758 785 756 799 789 799 789 784 755 796 784 792 755 771 759 787 765 799 761 787 759 783 75716 777 758 785 756 799 789 799 789 784 755 796 784 792 755 771 759 787 765 799 778 787 759 783 75717 771 755 779 753 801 787 802 786 783 755 802 783 790 755 771 757 787 764 803 772 783 759 785 75718 773 756 779 756 801 790 801 789 780 757 794 784 788 757 772 759 790 765 799 775 785 762 788 75619 778 762 787 763 802 792 802 791 781 755 796 787 796 763 774 762 791 766 803 775 787 762 784 75520 773 761 780 762 801 792 801 791 783 752 796 787 793 765 773 762 788 768 798 780 786 762 781 75121 782 761 794 762 806 787 807 787 791 761 805 781 805 763 775 763 798 771 808 781 796 759 790 75322 772 755 775 753 795 787 795 786 783 758 791 788 784 756 773 764 787 772 799 779 782 761 789 75723 774 760 784 761 809 787 810 786 785 749 809 790 792 764 776 764 796 770 807 778 792 764 788 75224 770 755 777 753 797 784 798 784 789 757 799 780 789 756 773 759 789 766 797 772 786 756 786 74925 772 756 780 752 801 784 803 784 789 763 799 788 789 758 775 759 791 769 809 777 787 759 788 75226 777 759 789 759 809 787 809 787 788 754 807 787 803 759 779 764 802 773 809 777 794 762 784 75127 777 754 783 751 798 781 799 781 785 756 796 787 791 754 775 759 791 765 802 774 787 756 781 74828 777 758 787 758 807 784 809 785 791 765 805 774 799 763 773 758 796 772 805 772 794 765 789 75829 780 756 790 758 800 785 801 727 786 758 799 732 803 761 773 758 795 772 806 729 797 763 782 75530 772 758 784 761 796 783 797 783 785 752 798 780 796 763 769 755 790 767 802 774 789 763 776 747

782 754 794 748 809 781 810 727 797 749 809 732 805 745 779 754 802 763 810 729 797 751 799 747

( )



ANNEXURE-2.5

Power Cut/Restrictions in Western Region for the month of May-2017k : gaujarat Gujarat

1 ]VaoogaaoM ko ilayao ivaVut kTaOityaaM1 Power Cut/ Restriction on Industriesa) All industries are allowed to run their units on all days of week & if they want to avail staggered holiday,

then they will have to staggered on notified day only & cannot avail as per their choice.b) All industries are required to keep their recess timings staggered.

2 kRiYa va gaàmaINa xao~aoM kao ivaVut AapUit-2. Power supply to Agricultural & Rural Sectorsa) 08 Hrs. power supply in staggered form in rotation of day & night is given to Ag. Single Phase supply given duringrest of 16 Hrs by providing LSTC.

b) Jyotigram Yojana 24 hrs.

3 Anya jaanakarI3. Any other information: NIL.K : maQya p`doSa Madhya Pradesh

1 ]VaoogaaoM ko ilayao ivaVut kTaOityaaM / pabMaidyaaM , rajya maoM Baar inayamana Aaid1 Power Cut/ Restriction on Industries, Load Shedding in the state etc

ivavarNa Details ivaVut kTaOtI kI maa~aQuantum of

power cut (MW)

pabandI ka samayaRestriction Timing

p`it idna kula }jaa- kTaOtITotal Energy Cut

(MUs /daysao From tk To(a) Power Restrictions(Eveningpeak Hour) on non continuous

process HT/LT Industries M(b) Baar inayamana Load Shedding

SaUnya Nil

SaUnya Nil

SaUnya Nil

SaUnya Nil

SaUnya Nil

SaUnya Nil

SaUnya Nil

SaUnya Nil

(c) Anya jaanakarI Other information1.Weekly Off2.Staggering of power supply

SaUnya NilSaUnya Nil




2 kRiYa xao~ kao ivaVut AapUit-2. Power supply to Agricultural Sector: -

ivavarNa Details sao FromidnaaMk Date

tk ToidnaaMk Date

p`it idna AapUit- GaMTo Supply Hours per dayMax. (Hrs) Min. (Hrs) Average (Hrs)

2.1 Three-PhaseSupply(DLF)

01.05.2017 31.05.2017 23:19 21:49 22:57

2.1 Three-PhaseSupply(Irrigation)

01.05.2017 31.05.2017 23:32 22:41 23:16

2.1 Three-PhaseSupply(Mixed)

01.05.2017 31.05.2017 09:49 09:16 09:41

3 Anya jaanakarI3. Any other information

SahrI xao~aoM maoM inayamana ivaVut kTaOityaaM Scheduled Power cuts in Urban AreasivavarNa Details sao From

idnaaMk Datetk To idnaaMk

DateAaosat p`itidna Average SupplyAapUit- GaMTo Hours per day

Max.(Hrs)

Min. (Hrs) Average (Hrs)

3.1 Commissionary H. Qtrs. 01.05.2017 31.05.2017 23:52 23:17 23:413.2 District Head Qtrs. 01.05.2017 31.05.2017 23:54 23:25 23:453.3 Tehsil Head Qtrs. 01.05.2017 31.05.2017 23:49 23:11 23:38

ga : maharaYT/ Maharashtra1 ]QyaaogaaoM ko ilayao ivaVut kTaOityaaM / pabMaidyaaM , rajya maoM Baar inayamana Aaid1. Power Cut/ Restriction on Industries, Load Shedding in the state etc

ivavarNa Details ivaVut kTaOtI kI maa~aQuantum of

power cut (MW)

pabandI ka samayaRestriction Timing

pìt idna kula }jaa- kTaOtITotal Energy Cut

(MUs /dayFrom To

(a) Power Cuts/Restriction on HT/LT Industries(b) Load SheddingFrom 01.05.17 to 31.05.17

SaUnya Nil

@ 0-1115 MW

SaUnya Nil

00.00

SaUnya Nil

24.00

SaUnya Nil

@ 0.95MUs/day

(c) Any other information1.Weekly Off2. Staggering of power supplyIndustrial Staggering LSwithdrawn from 03/02/2012

SaUnya Nil SaUnya Nil SaUnya Nil SaUnya Nil

2 kRiYa xao~ kao ivaVut AapUit-2. Power supply to Agricultural Sector


tk ToidnaaMk Date

p`it idna AapUit- GaMTo Supply Hours per day

Max. (Hrs) Min. (Hrs) Average (Hrs)2.1 Three-Phase Supply 01.05.2017 31.05.2017 10:00 8:00 09:00

2.2 Single-Phase Supply 01.05.2017 31.05.2017 18:00 18:00 18:00

3 Anya jaanakarI Any other information:There is no load shedding on industrial feeders in Maharashtra

Ga : C%tIsagaZ, Chhattisgarh:1 ]QyaaogaaoM ko ilayao ivaVut kTaOityaaM / pabMaidyaaM , rajya maoM Baar inayamana Aaid1 Power Cut/ Restriction on Industries, Load Shedding in the state etc

ivavarNa Details ivaVut kTaOtI kI maa~aQuantum of power cut (MW)

pabandI ka samayaRestriction Time

p`it idna kula}jaa- kTaOtI

TotalEnergy Cut(MUs /day)

sao From tkTo

(A) Scheduled(a) (i) Power Cuts/Restriction on HT Industries(ii) Power Cuts/Restrictionon LT Industries(iii) Power Cuts/Restrictionon Rural(iv) Agriculture pump*

(v)Urban/ Sub-Urban(iv)Town feeders(C-1to C-6)

(B) Un-Scheduled(a) Load Shedding

00.00(Av)

00.00(Av)

00.00 (Av)00.00 (Av)00.00(Av)00.00 (Av)

1.Rural NIL.2.Town Feeders (C-1to C-6 & X) : 0.00(Av)

-

-

-00.00

--

-

-

-

-00.00

--

-

-

-

-

-0.00

--

-

-

3. Industries NIL0.00

Total Energy Cut/day 0.00( b) Any other information1.Weekly Off/staggering ofpower supply

- - - -

2 kRiYa xao~ kao ivaVut AapUit-2. Power supply to Agricultural Sector


tk ToidnaaMk Date

p`it idna AapUit- GaMTo Supply Hours per dayMax. (Hrs) Min. (Hrs) Average (Hrs)

2.1 Three-Phase Supply 01.05.2017 to 31.05.2017 18.002.2 Single-Phase Supply - - - - -2.3 Remarks/Note/ - - - - -

3 Anya jaanakarI / Any other information: SaUnya Nil

संल�नक Annex-2.7

�नयोिजत यु�नट आऊटेज का मई 2017 का �व�ता�रत �यौरा Details of planned unit outages during the month of May. 2017

अनु �मांक Sl.No

यु�नटUnit

संघटकConstituent/IPP

�मता मेगावॉट Cap.MW

सo From

समय �दनांक

सo From


कारणReason

Time Date Time Date1. �ो�बे

TROMBAY 6TPC 500 00:00 06-03-2016 Still out Still out AOH

2. एसएसपी SSP(RBPH) 1

SSP 200 09:00 15-03-2017 11:00 17-04-2017 AOH for 30 Days(upto 14.04.17)

3. एमसीसीपीएलMCCPL 1

ACBIL 300 23:59 06-05-2017 21:43 27-05-2017 AOH

संल�नक Annex-2.6

अ�नवाय� यु�नट आऊटेज का मई 2017 का �व�ता�रत �यौरा Details of forced unit outages during the month of May. 2017

अनु �मांक Sl.No

यु�नटUnit

संघटकConstituent/IPP

�मता मेगावॉट Cap.MW

सo From


सo From


कारणReason

Time Date Time Date1. उकाई Ukai-2 GSECL 120 16:00 09-04-2016 Still out Still out Long restoration period2. उकई Ukai 1 GSECL 120 03:18 07-05-2016 Still out Still out Excitation problem3. एसट�पीएस STPS 2 GSECL 120 13:05 24-09-2016 Still out Still out Bunker problem4. एसट�पीएस STPS 1 GSECL 120 18:00 26-09-2016 Still out Still out RSD5. उकई Ukai 4 GSECL 200 19:49 02-12-2016 05:49 21-05-2017 RSD6. जीआईपीसीएल

GIPCL STG 1GSECL 145 14:08 10-03-2017 02:42 30-05-2017 RSD

7. जीपेक GPEC 2 GSECL 218 00:00 21-03-2017 00:22 04-05-2017 PSD(Planned Shutdown)8. डीजीबीपी DGBP 1 GSECL 107 02:10 08-04-2017 Still out Still out RSD9. उकई Ukai 3 GSECL 200 01:14 14-04-2017 17:18 02-05-2017 BTL10. जीपीपीसी GPPC 1 GSECL 351 17:22 24-04-2017 23:19 03-05-2017 Desynchronized11. जीपेक GPEC 1 GSECL 218 09

occ agenda - wrpc.nic.in6 400 kv mouda –betul pg lines june -17 chhattishgarh 1 400 kv dcds...

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