MINUTES OF 486TH MEETING OF OPERATION & COORDINATIONSUB-COMMITTEE OF WRPC

HELD ON 17TH AUGUST 2016 AT VARANASI

The 486TH meeting of Operation & Co-ordination Sub-Committee of WRPC was

held on 17th August 2016 at Varanasi. The meeting was hosted by M/s Jaypee Nigrie

Super Thermal Power Project. The list of participants is enclosed at Annexure-A.

Shri Vinod Sharma, President, Jaypee Nigrie Super Thermal Power Project (JNSTPP),

welcomed the delegates of all constituents of WRPC on behalf of JP Group and wished

them a comfortable stay at Varanasi, the cultural centre of North India & oldest city of

India. He thanked Member Secretary, WRPC for extending great opportunity to host

486th OCC meeting and to meet all delegates. He emphasized that there is tremendous

growth and challenges in power sector in near future and OCCM is a right forum to

discuss and resolve important issues.

He informed that it is a great achievement for the Western Region being capable to keep

grid frequency in IEGC band of 49.9 to 50.05 Hz for most of the time despite substantial

addition of Solar and other Re-newable energy sources in the grid.

Shri Naveen Tinguria, GM (E&I), JNSTPP made a presentation on Jaypee Nigrie Super

Thermal Power Project, Nigrie (Nigri) village, Singrauli district, Madhya Pradesh. He

informed that JNSTPP is a supercritical coal based generating station of 1320 MW

(2x660MW) and both the units are under operation. However he expressed difficulty in

operation since only 37.5 % capacity is tied up with MP.

Shri S D Taksande, Member Secretary, WRPC extended warm welcome to all the

participants of the 486th OCC meeting at Varanasi.

He appreciated JNSTPP, Nigri, Madhya Pradesh for pro-actively coming forward to host

the 486th OCCM at Varanasi. He thanked for immaculate arrangement of hospitality and

arrangement for conduct of meeting.

He told that 486th OCCM is being held during peak of monsoon season. He further told

that because of commercial mechanisms, a very high stable frequency of IEGC band of

49.9 Hz to 50.05 Hz achieved for 72.35 % of time. He appreciated all the constituents

especially WRLDC and SLDCs for their sincere efforts to achieve such a stable

frequency regime.

2

486th OCC MINUTES

He further informed about following important events which have taken place since last

month

A meeting was held at Silvasa on 05.08.2016 regarding upgradation of SLDCsand Sub SLDCs and to sort out the issue of data transfer from substation toSLDC of DNH, DD & Goa.

A meeting was held on 09.08.2016 at WRPC to assess the status of ULDCequipments (RTU and Communications equipments) and requirement for theirreplacement/upgradation. Criteria for replacement/upgradation of ULDCequipments were formulated & WRTS-I, PGCIL Nagpur has been requested toprepare a report on above and submit to working group by 30th September 2016.

He further informed that 32nd TCC/WRPC meetings to be held on 23rd & 24th

August 2016 at Pune.

He further told JNSTPP will be a regular member of WRPC forum since itsgeneration capacity is 1320 MW (more than the required capacity i.e. 1000 MW).

Thereafter he requested SE (OPN), WRPC to take up regular agenda items in seriatim

for discussion.

ITEM No. 1: CONFIRMATION OF THE MINUTES

Minutes of 485th meeting of Operation & Coordination Sub-Committee of WRPC held on

15TH July 2016 at Bilaspur were forwarded vide letter No. WRPC/OPN/OCC-Minutes/2016-

17/7720 dated 22.07.2016.

GM, Adani Power Ltd. commented on last paragraph of item no 9.8 of 485th OCC

minutes regarding Commissioning of 2nd transformers at 765/400 kV Tiroda and Akola:

QUOTE:

“GM, WRLDC informed that both these substations were N-1 non-compliant and concern

were being raised. Now MERC order amending the Licensee has been received. M/S

MEGPTCL / MSETCL to indicate further implementation plan.

APML representative informed that MERC order was issued on 30.6.16 and APML

would submit DPR shortly to MERC for approval. Commissioning of ICTs would take 11

months after MERC approval”.

3

486th OCC MINUTES

UNQUOTE:

He requested for following amendments:

“APML representative informed that MERC order was issued on 30.6.16 and APML

would submit DPR shortly to MERC for approval”.

No commissioning date was communicated by APML representative during meeting &

hence requested for deletion for last sentence.

The Sub-committee discussed & agreed as above

No other comments have been received. The minutes were confirmed with abovemodification.

ITEM NO.2: REVIEW OF SYSTEM OPERATION DURING THE MONTH OF JULY 2016.

SE(OPN), WRPC requested WRLDC to brief the Committee on Grid Operation

experiences during July 2016.

Engineer, WRLDC in the presentation concentrated broadly on the performance of the grid

for month of July 2016 (attached in soft copy).

2.1 Frequency ParticularsThe average frequency during the month of July, 2016 was 50.01 Hz. The maximum

instantaneous frequency was 50.35 Hz at 07:59:40 hrs on 02nd July 16 while minimum

instantaneous frequency was 49.69 Hz at 21:42:10 hrs on 07th July 16. The frequency

profile during June, 2016 was as under:

01st July 2016 to 31st July 2016 % time

IEGC band (49.9 < f < 50.05 Hz) 72.35

< 49.9 Hz 04.00

> 50.05 Hz 23.65

The frequency particulars is enclosed at Annex-2.1

The Sub-Committee noted.2.2 Inter-regional Exchanges

There was a net inter-regional export of 5407.00 MUs by WR against net export schedule

of 5320.00 MUs.

The Sub-Committee noted.

4

486th OCC MINUTES

2.3 Voltage Profile

Voltage profile at some of 765/400 kV sub-stations during the month of July 2016

furnished by WRLDC is enclosed at Annex-2.3.

The Sub-Committee noted as above.

2.4 U/F Relay Operations

As per WRLDC records during July 2016 the system frequency didn’t touch 49.2 Hz and

no UFR operation has been reported by WRLDC. However GETCO has reported, AUFLS

on five occasions in July 2016. GETCO may look into relay settings & recalibrate to avoid

unintentional operation of UFR.

The Sub-Committee noted as above.

2.5 Power Cuts / Load Restrictions

Details of Power Cuts and Regulatory measures during July 2016 as furnished by the state

utilities are given in Annex. 2.5.

The Sub-Committee agreed to furnish as above.

2.6 Details of Generating Units under Forced outages

Details of generating units under forced outages during July 2016 are given in Annex-2.6.

The Sub-Committee noted as above.

2.7 Details of Generating Units under Planned outages

The details of generating units under Planned Outages during July 2016 are given in

Annex-2.7

The Sub-Committee noted as above.

ITEM NO.3: OPERATIONAL PLANNING

3.1 Proposed Planned maintenance programme of generating units.

The maintenance programme of generating units for the months August 2016 & September

2016 is given in Annex 3.1.

The Sub-Committee agreed as above.

5

486th OCC MINUTES

3.2 OUTAGE PROGRAMME OF TRANSMISSION LINES/ELEMENTS

SE(Opn), WRPC informed that following procedures for transmission elements outages

planning for 483rd OCCM onwards:

1) The OCC held in the current month (M) shall discuss the line outages for the

period from 20th of current Month to 19th of next month.

2) The data for the above line outages shall be positively sent by 3rd workingday of current month for outages of said period. OCC will not entertain therequest after due date.

3) The compiled data shall be e-mailed to WRLDC, SLDCs /utilities for any

comments by 5th working day.

4) The line /element outages are of the following types: Routine Maintenance,

Constructional and Inter-Regional.

5) As per the control areas, IEGC rules and existing practices WR, OCC shall

discuss all 400 kV and 765 kV lines outages, irrespective of ownership, all inter-

regional/ inter-state lines, all 220 kV lines from ISGS stations. Where outage of a

line not covered under the above and wholly under a state, for example a 220 kV

line in Gujarat, the agency seeking the outage shall have to approach Gujarat

STU /SLDC authorities. If there are any problems, WR OCC may be informed for

any assistance required.

6) WR OCC typically meets between 10th to 15th of every month. It was decided in

4th NPC meeting that OCC meeting shall be held by all RPCs not later than 20th of

every month to leave a clear margin of 10 days to plan & coordinate outages for

next month by NLDC.

7) Inter-regional outages shall be planned well in advance so that time for co-

ordination by NLDC/WRLDC can be done. NLDC shall co-ordinate inter-regional

outages under intimation to the concerned RPC/RLDC.

8) For construction related outages the dates cannot be exactly planned in advance

though the tentative month/ dates may be decided and based on real time

conditions the outages can be permitted by WRLDC/SLDC for constructional

related category.

9) Only those elements planned for maintenance shall be taken for outage subjected

to real time condition permitting.

6

486th OCC MINUTES

10)Urgent/emergency outages not in the above plan shall be taken as per advice of

SLDC/WRLDC and information of same to all SLDC / WRPC shall be given.

11)Code Giving Procedure: Since short term market clearance depends onavailable transmission capacity & is cleared on day ahead basis, there was a

need for better planning. In this regard following was decided in the previous

OCC meeting and shall be implemented:

(a) All utilities shall confirmed on D-3 through following link about readiness to

avail outages (where D is date of outage):

https://docs.google.com/spreadsheets/d/1M-JeQbm6Cer8dB0uHStyPcGIMs95Us7TqqFrxq77mGY/edit#gid=2078002005

(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)All utilities that do not confirm by D-3, those outages shall be deemed

cancelled.

SE(Opn) further informed that as agreed in 484th OCC meeting, most of the constituentshave submitted the transmission elements outage proposal within stipulated time (i.e.three working day).

He further requested to WRLDC/NLDC to submit the proposal on third working day asper guide lines formulated above.

He insisted utilities for times adhere for proposal of submission. In next OCC onwards noother outages list will be considered. He requested all the utilities to coordinate with theirfield engineers for time line submission of the outage proposal.

Any other outages of emergency nature will be directly taken by WRLDC & coordinatedwith WRPC if required.

SE(Opn), WRPC informed that that since the agenda Annexure 3.2 for proposal oftransmission elements outages is circulated on 5th working day of the month, thereforeWRLDC/SLDC shall gone through the annexure before coming to meeting & onlyspecific issues will be discussed during the outage planning meeting.

Maintenance programme for transmission lines during the period of 20th August 2016 to 19th

September 2016 is given in Annex 3.2.

The outages planned agreed during the meeting is given in Annex 3.2.

The Sub-Committee agreed/noted for the same.

7

486th OCC MINUTES

3.3 ANTICIPATED POWER SUPPLY POSITION FOR THE MONTHS – AUGUST 2016 &SEPTEMBER – 2016

Details of anticipated restricted & un-restricted demands for the months of August 2016 &

September 2016 are given in Annex 3.3.

The Sub-Committee noted the same.

ITEM NO. 4: OPERATIONAL STATISTICS FOR THE MONTH OF JULY 2016

The details of actual generation, demand, drawl of power from grid; exchanges etc. aregiven in the following Annexures:Annex 4.1 - Actual Generation and Requirement for July 2016.Annex 4.2 - Peak Demand: Schedule Vs Actual for July 2016.Annex 4.3 - Integrated Operation of the System and Operation of Inter State Tie lines

for July 2016.Annex 4.5- Details of Declared Capacity, Schedules and Injections from Central sector

stations, Drawl Schedules and Entitlements of constituents during July 2016Annex 4.6 - Inter System Exchanges for July 2016.Annex 4.7 – Details of level of Major Reservoirs in Western Region for July 2016.

The Sub-Committee noted as above.

ITEM NO. 5: SYSTEM DISTURBANCES IN WESTERN REGION

There was a major grid disturbance at CGPL Mundra complex on 13.07.2016 at 02.37

hrs. Line side Y-ph post insulator between LA and Wave trap and R-ph wave trap post

insulator flashed over at Varsana end during test charge of 400 KV Bhachau – Varsana

line No. 1. It led to generation loss of around 2800 MW at CGPL.

A meeting was held at PGCIL Vadodara on 18.07.2016 to look into the matter and

following observations were made:

(i) After a bus fault usually of the nature of tracking on insulators, comprehensiveinspection and cleaning of insulators should be carried out and after ensuring

proper care, the decision for charging the bus be taken.

(ii) A dead bus after bus fault should not be charged through a short line. Also thedead bus should not be charged through a line having strong source at the

other end. It should generally be charged through a long line or through ICTs,

so that the fault currents are less.

(iii) The Zone 2 settings adopted by CGPL for all the lines, at CGPL end is 300msecand the remote end settings are 350msec. The adoption of 300msec for Zone

8

486th OCC MINUTES

2 at CGPL end is in view of stability of generating units and critical clearing

time of faults. It was noted that the 400kV Bacchau-Versana-1 & 2 lines are

very short lines(8.5kM). The group suggested that PGCIL may adopt 250msec

for 400kV Bacchau-Versana-1 & 2 and CGPL may adopt 350msec for time

being, and afterwards based on the studies for stability of the generators for

faults to be carried out, it would be decided to raise the zone 2 time settings

for these lines.

(iv) The DPS operation at Bacchau end of 400kV Bacchau-Versana#1 was inorder since the fault was at the Versana gantry. The 400kV CGPL- Bacchau-1

sensed the faults in Zone 2 at CGPL end due to short line length of 400kV

Bacchau-Versana. 127 th PCM Agenda to be held on 27.07.2016 and

28.07.2016 at WRPC, Mumbai Page 19

(v) It was suspected that the power swing has set up during or with the fault on400kV Bacchau-Versana-1 and subsequently all the lines from CGPL tripped

in Zone-1 power swing. The units also tripped simultaneously on OST. A

report would be prepared along with recommendations with further studies of

the DRs

No other major grid disturbances were taken place in the Western Region

during the month of July 2016. However the details of minor incidences during

the month received from WRLDC are enclosed at Annexure-5.

The Sub-Committee noted as above.

ITEM NO. 6: Healthiness status of SERs/DRs of equipment in the system.

Constituents have furnished the status of healthiness of SER/DRs in their systems on thedates below:

Sl No. Name ofconstituents

Date of Receipt

1 PGCIL,WRTS-I 03.08.20162 PGCIL,WRTS-II 03.08.20163 MPPTCL 17.08.20164 NTPC 03.08.20165 CSPTCL 03.08.20166 GETCO 17.08.20167 MSETCL 03.08.2016

The Sub-Committee noted.

9

486th OCC MINUTES

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 Commissioning of reactors.

The present status regarding schedule and commissioning of reactors is as below:

S.No.

400 kVSub/stn.

Size(MVAR)

Implementing agency

Expected commissioningdate

1 Nanded 125 MVAR MSETCL Dec – 2016

2 Sholapur 125 MVAR MSETCL Dec – 2016

3 Kolhapur 125 MVAR MSETCL Dec – 2016

4 Akola 125 MVAR MSETCL Dec – 2016

*5 Nagda 125 MVAR MPPTCL Commissioned and chargedon 09.08.2016

6 ISP 125 MVAR NHDC April– 2017 (Tenderingdone)

7 Line reactor atNagda-ISP lineat Nagda end

50MVAR MPPTCL Sept 2016 (Expected)

8 Satpura 50 MVAR MPPGCL Dec-2016

9 Khandwa 125MVAR PGCIL Commissioned on01.04.2016

10 Vindhyachal 125MVAR NTPC Commissioned on06.04.2016

*50 MVAR existing bus reactor to be shifted to Nagda-ISP line as line reactor aftercommissioning of 125 MVAr reactor at Nagda.

Sub-Committee noted as above.

10

486th OCC MINUTES

7.2 STATUS OF COMPLETION OF 765/400 KV AND ABOVE ONGOING TRANSMISSIONSCHEMES BEING EXECUTED/IMPLEMENTED BY TRANSMISSION 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 TargetCompletionDate

Remarks

POWERGRID1 400 kV Navsari – Kudus D/C Line Sep -16 ROW/Forest problem2 765 kV Wardha –Nizamabad-

Hyderabad D/CDec -16

3 400 kV Aurangabad - Boisar line D/Cline

Oct -16

4 765 kV Aurangabad (PG) - Padghe(PG) D/C

Dec -16

5 800kV Champa – Kurukshetra Bipole September-16

6 LILO of both circuits of Aurangabad –Pune 400 kV D/c line at Pune 765/400kV GIS

Commissioned on 03.04.2016

CHHATTISHGARH1 400 kV DCDS Raipur(Raita)-

Jagdalpur(DCDS)Oct -16

2 LILO of 220 kV Raigarh-Budipadar at400 kV PGCIL S/s Raigarh. Idealcharged on 11.8.2015 for no theftreason

Oct -16 Under discussion with Orissaand ERLDC, being taken upby WRPC

GUJARAT1 400 kV D/C Vadinar-Amreli line Dec -16

2 400kV APL-Hadala LILO to Halvad June -17

3 400 kV D/C Amreli-Kasor line(Part-1) Dec -16

4 400 kV Charanka- Veloda Dec -16

5 400kV Varsana-Halvad March -17

MADHYA PRADESH

MAHARASHTRA(STU)1 400 kV Bableshwar-Kudus D/C

(Quad) Oct -16Forest clearance awaited,severe ROW problem

STERLITE (RPTCL)1

400 kV Sujalpur(PG)-RAPP(Kota)(IRby RTCL)

Commissioned on26.02.2016(But idle chargedfrom Sujalpur End as bays atRapp end are not ready)

The Sub-Committee noted as above.

11

486th OCC MINUTES

7.3 Commissioning of new Generating units in Western Region and thecapacity expected to be commissioned during the current year 2016-17.

The status regarding Generating units, commissioned /expected to be commissionedduring the current year according the available information is as below:

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

Date of Commissioning/Schedule Date

GUJARAT

CHHATTISGARHMARWA 2 500 COD on 00.00 hrs of

31.07.2016MAHARASHTRACHANDRAPUR 8 500 Synchronized on 29.3.2015.

COD ON 04.06.2016CHANDRAPUR 9 500 Commissioned on

21.03.2016. COD not yetKORADI 9 660 Synchronized on

21.01.2016. COD not yetKORADI 10 660 Synchronized on

01.07.2016MADHYA PRADESH

M/s Jhabua Power, Seoni 1 600 Synchronized on23.02.2016Cod on 03.05.2016

Essar Power MP Ltd(Mahan) 2 600 March -17

MB Power 2 600 Cod on 07.04.2016

CENTRAL SECTOR/IPP

GMR Chhattisgarh 2 685 Cod on 01.04.2016

KSK 3 600 Dec – 2016

KSK 4 600 March – 2017

RKM 3 360 Dec 2016

RKM 4 360 Dec 2016

Sub-committee noted as above.

12

486th OCC MINUTES

ITEM NO. 8: MISCELLANEOUS OPERATIONAL ITEMS

ITEM NO. 8.1: QUARTERLY REVIEW OF CRISIS MANAGEMENT PLAN

SE(O), WRPC requested the constituents to submit the CMP report for the First quarter

(April 2016 to June 2016) for the year 2016-17.

The Sub-Committee noted as above and agreed to furnish the same.

ITEM NO. 8.2: STATUS OF PHYSICAL & CYBER SECURITY IN POWER SECTOR

SE(O), WRPC requested the constituents to submit the Status of physical & cyber security

in Power Sector for the First quarter (April 2016 to June 2016) for the year 2016-17 have

not been received from some of the constituents.

The Sub-Committee noted as above and agreed to furnish the same.

ITEM NO. 8.3: READINESS OF SLDC AT GOA, OTHER SLDCs AND WRLDC FORUPGRADATION OF EXISTING SCADA/EMS SYSTEMDuring 29th WRPC meeting it was decided that the status of progress of SLDC’s & Back-up SLDC’s of WR constituents /WRLDC would be regularly monitored in monthly OCCmeeting.The matter was discussed during 31st TCC/WRPC meeting and WRTS-II, PGCIL hasbeen assigned the role to coordinate & sort-out the issues at the earliest for timelineimplementation of project with states & LD&C division of PGCIL. WRPC suggested tocall a meeting to expedite the same.Accordingly a meeting on SCADA/EMS was held on 27th April, 2016 with M/s Alstom at

Bhopal. The most of the issues have been resolved by M/s Alstom. Other small punch

points will be resolved by resident engineer of M/s Alstom by the end of September

2016. Representative from M/s Alstom informed regarding resolution & escalation of

project three level of engineers will be deployed viz at site level, at regional level & at all

India level. Issues will be monitored at centralized level & resolving of the issues will be

solved by appropriate level of expertise.

Representatives from Gujarat, MP & Chhattisgarh have agreed to the above

arrangements of punch points resolving & man power deployments by M/s Alstom .

PGCIL confirmed the same for Goa, DD & DNH. The defect liability period will be

13

486th OCC MINUTES

started from 1st June 2016 for one year & thereafter AMC will be continued for next five

year as per contracted terms & conditions.

Representative from SLDC Chhattisgarh stated that the progress of upgradation of

SCADA system has almost stalled in main as well as in back up SLDC despite it being

the first in adopting ALSTOM system.

Major Issues at Backup LDC are:

1. Commissioning of DG set which is lying idle since last one year.

2. SAT of SCADA not complete. EDNA not yet installed.

3. EMS - not yet started.

4. Man power deployed is totally new & incapable of doing SCADA work.

Main SLDC

5. EMS commissioning abnormally delayed despite retrieval of OPGW breakage.

6. Some of punch points still remain unresolved.

He further informed that SLDC Chhattisgarh will take over the system only after

resolving the above issues by ALSTOM.

AGM, PGCIL Raipur assured to expedite the punch points of SLDC Chhattisgarh.

AGM, WRLDC informed that integration of communication link of DD & DNH from S/s to

SLDC is not reliable as on date.

Representative from PGCIL, Vadodara informed that scope of work regarding DD &

DNH under M/s Alstom has already completed but communication link between Sub-

station to SLDC are not ready.

The latest status of progress of SLDC’s & Back-up SLDC’s of WR constituents /WRLDC

is enclosed at Annexure 8.3-A.

CEE, Goa Electricity Department vide letter dated 01.07.2016 requested for integration

of telemetry points up to 33 kV level of Goa system in M/s Alstom software

GM, WRTS-I, PGCIL, Nagpur informed that the M/s Alstom have already completed the

scope of their work under the current contract and TOC was also given to them for both

Main and Back-up SLDC’s. The contract is now almost closed with a few formalities left.

Integration of any 33 KV station was not in the scope of present contract and inclusion of

the same at this stage is not possible.

Member Secretary suggested Goa to take the above work as separate project & submit

the proposal to PGCIL for further consideration.

14

486th OCC MINUTES

A meeting was convened on 05.08.2016 at SLDC Silvasa (MOM is attached at

annexure 8.3B) wherein most of the issues of Goa, DD and DNH were resolved.

Representative from Gujarat informed that a meeting was held on 05.08.2016 at SLDC

Vadodara & MoM is attached at Annexure 8.3-C.

Representative from MP and Gujarat confirmed that project has been implemented and

in operation in main as well as back up SLDCs in their states, except some punch points

and which will be resolved by 30.09.2016.

SE, SLDC Chhattisgarh informed that Erection of DG set is under completion and

commissioning will start shortly, SAT of SCADA started and EMS SAT will begin on 23-

08-2016. Some of punch point still remain unresolved like replacement of existing 3

direction OFC MUX with 5 direction as confirmed by DGM (Engg. Elect. TS & BDD)

PGCIL Nagpur. Presently one Ethernet module is existing and 2 no. additional Ethernet

modules are required at Backup SLDC, M/S Orange hotline speech communication

panel not installed at Backup SLDC.

The sub-Committee noted as above.

ITEM NO. 8.4 RATIFICATION OF PROJECTED DEMAND AND GENERATION ATRPC FORUM FOR Q3- OCT16-DEC16.

Chief Manager, WRLDC submitted the data received from NLDC for Quarter 3-October

– 16 to December-16 for ratification of Demand & generation data for POC computation.

Demand & generation data for POC computation was discussed in the meeting and the

updated & ratified data is enclosed at Annexure 8.4.

Member Secretary, WRPC suggested that the modified Demand & Generation data for

3rd quarter POC computation shall be sent to NLDC by WRLDC. The data will be

validated in validation committee meeting scheduled on 30th August 2016.

The sub-Committee noted as above.

15

486th OCC MINUTES

ITEM NO. 9: WRLDC ITEMS9.1TELEMETRY ISSUES

GM, WRLDC informed that It is being observed that instances of loss of crucial real time

data are increasing and there is lack of matching response in restoring the same. Ideally

there has to be protection path from each nodes to ensure n-1 redundancy for telemetry

aslo. The locations having major issues are as under:

a) Highly intermittent data from Kolhapur GIS

400kV Kolhapur GIS-Kudgi-D/C data is also being used to calculate the drawl of

Maharashtra. Data from Kolhapur goes to Mapusa on OPGW. From Mapusa to Nagpur it

goes on Reliance. From Nagpur to WRLDC it comes on PowerTel. During last meeting

POWERGRID representative informed that alternate path would be explored through

Narendra-Kudgi –Mapusa-Nagpur by July’16 end. However another alternate

arrangement from Kolhapur(PG)-Kolhapur(MS) can also be explored for which MSETCL

agreed.

Representative from POWERGRID informed that alternative arrangement is beingexplored wherein the Kolhapur(GIS) telemetry data will be transmitted to Mapusaon PLCC and from Mapusa to WRLDC on lease line.

b) Gateway problems at SholapurBoth gateways hanged on 16.04.16, which resulted incorrect computation of drawal of

Maharashtra. POWERGRID WRTS1 during last meeting informed that these gateways

have been procured. There is some License issue before making it online and same will

be done by July 16 end. PGCIL informed in last meeting that the issue of licence from

Sweden was sorted out and telemetry would be available by July’16 end. Issue is not yet

resolved. WRLDC issued letter to Solapur and WR1 RHQ on 1st August 2016.

Representative from PGCIL informed that ABB engineer is attending the problemand in next 10 days the gate way problem at Solapur will be resolved.

c) Intermittent data from DharamjaygarhReal time data from Dharamjaygarh is received through GPRS and POWERGRID

Intranet which is highly intermittent. During last OCC POWERGRID representative

16

486th OCC MINUTES

informed that Fibre Connectivity is in advance stage of completion and data through fibre

will be available by July16 end. Fibre connectivity has reached upto Champa only.

Representative from POWERGRID informed that the Dharamjaygarh connectivitythrough fiber was established on 08.08.2016. Further, to improve the redundancyof data, Dharamjaygarh to Bilaspur would be connected through fiber optic. Orderhas been placed and work would be completed in next 6-7 month. This wouldfurther improve reliability of telemetry from Durg and Kotra stations

d) Wrong up-dation of SCADA data from NTPC Korba station

Since last two- three months the situation has not improved/sorted out and there is issues

between NTPC and POWERGRID about the scope.

Isolator Status CB status AnalogKorba west ISO A GT3 Bus 2 KVKorba west ISO L Korba West Bus 2 HZBus coupler 1 ISO A Bus coupler 1 Bus 3 KVBus coupler 2 ISO A GT4 Bus 3 HZBhatapara Iso A GT6 Bus 4 KVVSTPS Iso A Bus coupler 2 Bus 4 HZ

Bhatapara Generator 1 MWGenerator 1 MVARGT 1 MWGT 1 MVARGenerator 6 MWGT 6 MVARGT 6 MVARKorba VSTPS MWKorba VSTPS MVARKorba Vandana MWKorba Vandana MVARKorba BALCO MVARKorba BALCO MW

NTPC informed in 485th OCC meeting that transducer was damaged at Korba during the

tripping on 30th Mar’16. The work is under the scope of PGCIL. PGCIL informed it would

be taken up with contractor -M/s Honeywell. Issue is still pending.

17

486th OCC MINUTES

Representative from POWERGIRD informed that spares are not available and M/sHoneywell would take next 1 - 2 month to rectify. Moreover, PGCIL requestedNTPC to recheck the transducer healthiness, wiring and supply issues andexamine, why so many transducer have failed in a single tripping. NTPC agreed tolook into and give feedback to POWERGRID.

e) Non-availability of telemetry for elements from MSETCL stations

Telemetry from following elements from MSETCL end is not available at WRLDC: During

last OCC it was informed by Maharashtra representative that majority of data will be

available by June end and balance by july end.

ICTs

Sr. No. Stationname ICT no.1 Dhule 32 Kolhapur 33 Padghe 44 Solapur 2

MSETCL representative informed that IED installation & configuration work is in progressfor all above 4 stations and will be implemented by Aug-16.

LinesSr.No. From station To station

ckt.No.

Untelemeteredend

1 Aurangabad MH Deepnagar 1 Aurangabad MH2 Aurangabad MH Taptitanda 1 Aurangabad MH3 New Koyna RGPPL 2 New Koyna4 New Koyna Jaigad 1 New Koyna

5 New Koyna Jaigad 2 New Koyna6 Bhusawal Deepnagar 1 Bhusawal7 Bhusawal Deepnagar 2 Bhusawal

8 Nagothane Padghe 2 Nagothane

MSETCL representative informed that for lines given at serial no 1,2,4,5,6 & 7, IEDinstallation & configuration work is in progress and will be implemented by Aug-16.

18

486th OCC MINUTES

MSETCL representative further informed that for lines given at serial no 3 & 8,data is not received correctly at SLDC end due to RTU end problem. Matter hasbeen taken up with concerned agency and is expected to be implemented by Aug-16.He further informed that software configuration is pending on above telemetrypoints. In above 12 telemetry points, 9 points will be available within a month, andone Deepnagar-Bhusawal by Oct end. Rest 2 points (New Koyna - RGPPL,Nagothane-Padghe ) will take time for rectification.

The Sub-Committee noted as above.

9.2 Telemetry issues from Maharashtra StationsTelemetry not available from *Chandrapur (switching), Lonikhand (II): During the

March OCC it was informed that it will be made available by end March16. During the

April OCC, it was informed that telemetry from Lonikhand (II) will be made available

by April end. Present status to be updated by MSETCL.

Number of

stations

whose

telemetry

should be

available at

WRLDC

Number of

stations

whose

telemetry is

not

integrated in

WR-SCADA

Number of

stations whose

telemetry is

intermittent /

unreliable

% observability of

stations under

jurisdiction of

Maharashtra

STU/SLDC

at WRLDC

A B C (A – (B+ C)/A

Generating

Stations32 0 2** 93.75%

765/400 kV

Transmission

Substations

19 2* 4*** 68.42%

220 kV

Transmission

substations

178 8 58 62.92%

Total 229 10 64 67.68%

19

486th OCC MINUTES

9 ** Koyna, Deepnagar- MSETCL to give status for resolving the issue of intermittency.

These are important Generating stations. Koyna stg. I, II, III & IV telemetry of

generating units not updating at WRLDC

10 *** Bableswar, Khargar, Ektuni, Jejuri- MSETCL to give status for resolving the issue

of intermittency. These are important Load points

On 10 May 2016 at 01:09 Hrs, due to lightning and rain the Neutral displacement

relay of 400/220 kV ICT 1 & 2 of Lonikhand2 Sub-station along with 400/220 kV ICT 1

at Lonikhand sub-station has tripped. WRLDC remained ignorant of tripping of

Lonikhand ICT because the telemetry from Lonikhand2 is not available. SLDC Kalwa

also failed to report the event to WRLDC. SLDC Kalwa to examine the case and

ensure prompt sharing of information for reliable operation. MSLDC informed during

last OCC that OPGW work is under progress in Lonikhand-I-Lonikhand-II line. For

other stations, contract has been given to M/s TTLS through VSATs.

MSETCL representative informed that for stations 400 KV Chandrapur (switching)and 400 KV Lonikand-2, communication from this location to the dataconcentrator will be established on optical fibre and will be implemented by Sept-16 end.He further informed that for Koyna sub-station, MSETCL is in process ofestablishing digital PLCC at the station where no other communication serviceprovider is available. Tender for digital PLCC is floated and will be implementedby Oct-16 end. He further told that for sub-stations Deepnagar, Bableshwar,Khargar, Ektuni and Jejuri, MSETCL is in process of establishing redundant linksat important 400 KV locations using VSAT communication. Tender for the samehas been floated and will be implemented by Oct-16 end.

The Sub-Committee noted as above.

9.3 Over Voltage issues in South Western MaharashtraConsequent to the start of monsoon, Maharashtra demand has reduced. The

demand during night hours is around 12000-13000 MW. Further there is high wind

generation in Karad, Kolhapur areas. Even after taking all actions mentioned below-

High Voltages (more than 430kV most of the time) are being faced in 400 kV

20

486th OCC MINUTES

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

Solapur PG voltage is 810kV and above in night hours. Lines have tripped on O/V.

Actions taken by WRLDC / NLDC to control high voltage

Advised SLDC to operate Koyna units in Condenser mode

400 kV Koyna IV-Lonikhand-s/c kept open to control O/V

400 kV Karad-Kolhapur one ckt kept open to control O/V

400 kV Karad-Jaigad one ckt kept open to control O/V

400 kV Kolhapur-Mapusa one ckt kept open to control O/V

400 kV Solapur-Kolhapur one ckt kept open to control O/V and taken LR as BR at

Solhapur

765 kV Wardha-Aurangabad two ckts kept open on HV taken LR as BR at

Wardha.(at A.bad reactor don't have NGR bypass & CSD)

HVDC Chandrapur-Padghe both poles blocked

HVDC Bhadrawati reduced to 150-200 M (though NLDC)

Talchar HVDC Reduced to 570 MW (through NLDC)

Gajuwaka HVDC reduced to 300 MW (through NLDC)

Raichur-Kurnool one ckt also opened to control voltage (through NLDC)

In real-time it was reported that LR of 765 kV Pune GIS - Solapur-S/C couldn’t be used

as BR due to awaited clearance from OS. However, on intervention by WRLDC, the

issue got resolved and since 30th June these reactors are now being taken as Bus

reactor.

WRLDC enquired about present status of following actions for Voltage Regulationto be taken: Shunt reactor commissioning by MSETCL: The 125 MVAr Bus reactors at400 kV Akola, Kolhapur, Solapur and Nanded were reportedly expected to be

commissioned in Dec 2016 by MSETCLa. Capacitor switching off in LT system to be monitored in Maharashtra

b. Utilization of LR of 765 kV Wardha-Aurangabad ckts at Aurangabad end as Bus

Reactors through NGR bypass arrangement. PGCIL informed in last OCC that there

is space constraint at Aurangabad to make the line reactors switchable. However,

Engineers are working for exploring NGR by pass scheme to utilize the line reactor as

bus reactor whenever line is kept out of service.

c. Commissioning of NGR bypass scheme in Reactors at 765 kV Aurangabad –Solapur

D/C at Aurangabad and Solapur end. 765 kV Aurangabad- Solapur line--OCC

21

486th OCC MINUTES

approved outages for A'bad-Sholapur D/C one by one are planned from 08.08.2016

to 10.08.2016 . As informed from WR1, jumpering work to convert LR as BR at

Sholapur and Aurangabad ends will also be done in same.

d. Commissioning of STATCOM at Aurangabad, Gwalior, Sholapur and Satna--Award

placed in June'15.

MSETCL representative informed that voltage is high due to low demand in

Maharashtra and high wind and hydro generation in southern Maharashtra. All

capacitors are kept off on seasonal basis. Two units of Koyna are operated in

condenser mode. Koyna Unit-3 could not run in condenser mode due to

problem in Unit condenser. The problem is being attended.

The Letter of award for 125 MVAR shunt reactors at Nanded, Akola, Solapur

and Kolhapur has been finalized will be issued soon.

GM WRLDC informed that to control high voltage several circuits including

one ckt of 400 kV Kolhapur-Mapusa are kept open. In case of tripping of this

ckt, Goa may face blackout because the 220 kV lines are often out of service

and telemetry of those lines are also not available.

He also informed that high unbalance has been noticed between the voltage

of Y phase vis-à-vis R & B phases at Aurangabad, Parli, Lonikhand,

Bhadravati, Solapur and Boiser. SLDC Maharashtra would coordinate with

MSEDCL to review the single phase supply to consumers.

In view of injection of MVAr from 220 kV to 400 kV side at Karad and

Kolhapur, SLDC Kalwa would review the MVAr injection by RES wind farms in

the area.

CE, SLDC Maharashtra vide letter dated 12.08.2016 (copy attached at

annexure 9.3) submitted their action plan to control the over voltage insouthern Maharashtra.

The Sub-Committee noted as above.

22

486th OCC MINUTES

9.4 Over Voltage issues in other parts of WR Grid

Status of the prolonged outage of following reactors to be reviewed:

a. The 50 MVAR Line Reactors of 400 kV Sujalpur-Bina ckt-1 and ckt-2 at

Sujalpur end are out of service since 04.03.2016 for conversion from non-

switchable to switchable reactor. WR-II,PGCIL informed that the conversion

would take one year. Meantime the line reactors were taken into service as

the work is not yet started.

b. The Bus Reactor at 400 kV MB Power is out of service since 25.05.2016

reportedly due to failure of LA. MB Power informed that it would be available

by 25.7.16. But till date it is not available

c. 125 MVAR Bus Reactors at Nagda and Indirasagar were expected to be

commissioned in July 2016 by MPPTCL / NHDC respectively. MPPTCL

informed in last OCC meeting that 125MVAR bus reactor at Nagda would be

installed by Aug’16 and 50MVAR reactor would be shifted from Nagda to ISP.

During last OCC meeting, WRLDC informed even after taking all measures for

controlling high voltage , many stations in southern Maharashtra viz., 400 kV Solapur,

400 kV Kolhapur, 400 kV Parli, 400 kV Pune GIS, 400 kV Lamboti, 400 kV Parli(MS) and

400 kV Mapusa recorded very high voltage during June. Same condition is also

prevailed in July’16. The following measures have to be taken by all on priority:-

1. Expedition of commissioning of Bus reactors at Kolhapur,Nanded

,Sholapur and Akola. – Action by MSLDC

2. Since there is MVAR injection from 220kV side , ICT tap changing

may be explored at Chandrapur, Kolhapur (3x315 MVA, Karad

(3x315 MVA,Nanded (2x500 MVA) Chandrapur (2x315 MVA) -

MSETCL and at Pune(PG) (2x315 MVA) - POWERGRID

3. All generators at the state control area may be instructed to absorb

MVAR to contain high voltage.

It was observed that the Regional entity IPPs viz., DB Power,Essar Mahan,GMR

EMCO,Jhabua Power,JP Nigrie ,MB Power and NTPC mouda units were injecting

MVAR during high voltage period in July’16 . WRLDC has already issued letters to them

for necessary action. Following State Generators are injecting MVAR into the grid.

23

486th OCC MINUTES

S.No State IPPs CGS State Generators

1 Maharashtra - - 1. Koradi U#8 (660 MW)2 Gujarat - - 1. APL U#3 (330 MW)

2. APL U#4 (330 MW)

3. Essar Vadinar U#1 (600

MW)

4. Essar Vadinar U#2 (600

MW)

5. Sugen U#1 (400 MW)

6. Sugen U#2 (400 MW)

7. Sugen U#3 (400 MW)

3 MadhyaPradesh

1. Essar Mahan U#1 (600

MW)

2. MB Power U#1 (600 WM)

3. JP Nigire U#1 (660 MW)

4. JP Nigire U#2 (660 MW)

- -

4 Chhattisgarh 1.DB Power U#1 (600 MW)

2. DB Power U#2 (600 MW)

3. GMR Chhattisgarh U#2

(685 MW)

4. JPL U#2 (250 MW)

5. KSK U#2 (600 MW)

1. KSTPSU#3 (200MW)2. KSTPSU#2 (200MW)

1. Korba West U#5 (500MW)

Committee may like to discuss.

Reactor Status as informed by entities is as under:

MB Power: Bus Reactor will take 8-10 months

Nagda Bus reactor: Commissioned on 9-August-2016, further 80MVAr reactor will be

shifted as Line reactor on Nagda-Indra Sagar at Nagda end.

Indra Sagar: 125 MVAR will be commissioned by April 2017

The committee also noted that voltage at Birsighpur, Katni and Damoh is also very high

whereas the voltage at Satna is within limits. SLDC MP agreed to plan for additional

Shunt Reactors in that area and also examine possibility of load reconfiguration between

Katni and Satna.

24

486th OCC MINUTES

Essar Mahan U#1 (600 MW), MB Power U#1 (600 WM), JP Nigire U#1 (660 MW), JP

Nigire U#2 (660 MW), APL U#3 (330 MW), APL U#4 (330 MW), Essar Vadinar U#1 (600

MW), Essar Vadinar U#2 (600 MW), Sugen U#1 (400 MW), Sugen U#2 (400

MW), Sugen U#3 (400 MW), Koradi U#8 (660 MW), Korba West U#5 (500 MW) would

review the AVR setting to ensure that there is no injection of MVAr during high voltage.

The GT taps of units which are under RSD to be coordinated.

Member Secretary, WRPC stated that Generator injecting MVAR in the grid duringhigh voltage period is highly objectionable and generators were requested to co-operate and absorb MVAR within capability curve.The Sub-Committee noted as above.

9.5 Implementation of SPS in Maharashtra stations as advised by NLDCImplementation of following SPS is still pending in Maharashtra stations

SPSName

Final Logic SPS Action Status on 25th April 2016

SPS-5 400kVWardha -Parli D/C:

Tripping ofany onecircuit of 400kV Wardha -Parli D/C andflow on othercircuit > 750MW

- 800MW Gen Back down in WR:Tirora-200 MW, Koradi – 70 MW,Chandrapur – 250 MW, Mauda –100MW, Khaperkheda– 150 MW,Indiabulls – 30 MW

- Load Shedding:

- 800 MW in SR.

- 200-300 MW in WesternMaharashtra

- Only Tiroda and Mauda wired forSPS action.

- Wiring of SPS for generationbacking down at Koradi,Chandrapur, Khaparkheda andRattan India yet to beimplemented by Maharashtra.

- Wiring for 200 – 300 MW loadshedding in WesternMaharashtra yet to beimplemented.

SPS-6 400kV Parli –SholapurD/C:Flow oneither circuitof 400 kVParli –Sholapur D/Ccrossing 800MW andremainingabove thisvalue for 2.5secondsOr

- 800 MW Gen Back down in WR:JPL-150 MW, JPL Extn – 150 MW,KSK – 100 MW, LANCO – 100MW,DB Power – 100 MW, KWPCL –100 MW, BALCO – 50 MW, NSPCL– 50 MW

- Load of 800 MW shall be shed inSR.

- 200-300 MW load shedding in

- Wiring of Gen Back down at allStations implemented

-

- Wiring of SPS for 200-300 MWautomatic load shedding inMaharashtra yet to beimplemented.

25

486th OCC MINUTES

Tripping ofany onecircuit of 400kV Parli –Sholapur D/Cand flow onother circuit> 700 MW

Western Maharashtra

Copy of NLDC reply to Maharashtra SLDC were made available during the last OCC

meeting. Member Secretary, WRPC requested MSETCL to expedite the commissioning

of above SPS scheme . Chief Engineer, MSLDC has written to NLDC for arranging a

meeting of all concerned to discuss the SPS where backing down by MSPGCL

generators are envisaged.

Representative from WRLDC once again explained that the SPS is designed forsecurity of the Maharashtra system as well as WR system. The triggering criteriahad been revised by NLDC and it would be met for contingencies greater than N-1.Member Secretary proposed for a meeting between NLDC, MSETCL, MSEDCL,MSEGCL, WRPC and WRLDC to find amicable resolution to settle the disputebetween MSETCL and NLDC.The Sub-Committee noted as above.

9.6 Implementation of Web-based Scheduling softwareThe Web-based Energy Scheduling (WBES) software was launched w.e.f. 00:00 hrs of

01.07.2016. All Users have been given a unique User Name and Password for

coordinating the scheduling. The old software has now been discontinued w.e.f. from

01.08.2016. The experience in the first few days have been highly encouraging barring

few issues. The present status are as under:

Activity Responsibility Status/Remark

Declared

Capacity

Respective

Stations

All stations are filling their DC and its revisions

Submission

of

requisition

All regional entity

States/beneficiaries

1) All Users except GOA are filling the data.

Goa has informed that they will start filling

online after shifting of SLDC to new building.

GOA to indicate the present status.

2) For all beneficiaries who are outside WR, the

requisition is being filled by WRLDC on the

26

486th OCC MINUTES

Activity Responsibility Status/Remark

input from respective RLDC.

3) The requisition from KSTPS-II(ER) are email

to WRLDC, the data will be entered by WRLDC

in coordination with ERLDC.

4) MP is not filling Solar related data

consistently

Moreover, all constituents need to call WRLDC for URS approval, after claiming the URS

in WBES against any seller.

The implemented schedule from 1st August 2016 would be prepared from the WBES

software, it is requested to reduce the post facto correction and highlight any

discrepancy in schedule during real time in given email id wrldcposoco@gmail.com and

wrldcwbes@gmail.com.

Further, all users requested to use the Google Chrome browser v40 or higher to access

the WBES software. Users are requested to highlight any issues being faced in WBES

software, all efforts will be taken to address the issues.

GM WRLDC thanked the all stakeholders for the cooperation extended in rolling out the

scheduling software. He informed that a meeting was held in end of July at WRLDC,

wherein NTPC, Gujarat and M.P. had requested for the web interface to automatically

transmit the schedule data in real time. It was also informed that the data will be

transmitted to concerned utilities in a secure IP address. He also stated that AMC of 5

years had been given to the service provider to take care of the ongoing development

needs.

The Sub-Committee noted as above.

9.7Frequency Response Characteristic of Major Generators in WRThe FRC of the major generating stations (500 MW and above) is being reviewed

regularly since DEC 15 starting with 478th and during 479th, 480th, 481st, 482nd, 483rd,

484th and 485th meetings. FRC of following events have already been discussed in

past OCC.

27

486th OCC MINUTES

Event Date Time Frequency ChangeDesirable

actions

1 26 Oct 1514:41

Hrs

0.27 Hz Rise : 50.02 to

50.29Gen reduction

2 21 Feb 1616:46

Hrs

0.16 Hz Rise : 49.96 to

50.12Gen reduction

3 06 Mar 1606:47

Hrs

0.16 Hz Dip: 50.02 to

49.86Gen pick up

4 14 Mar 1601:36

Hrs

0.17 Hz Dip: 50.00 to

49.83Gen pick up

5 14 Apr 1613:29

Hrs

0.13 Hz Dip : 49.90 to

49.77Gen pick up

6 17 Apr 1601:09

Hrs

0.21 Hz Dip : 49.98 to

49.77Gen pick up

7 18 May 1617:31

Hrs

0.40 Hz rise : 50.04 to

50.43Gen reduction

8 22 May 1621:10

hrs0.14 Hz rise: 49.95 to 49.81 Gen reduction

9 9 June 1614:27

hrs

0.44 Hz rise : 49.92 to

50.35Gen reduction

10 17 June 1616:36

hrs0.15 Hz drop: 50.15 to 50.0 Gen pick up

Following events have also been analysed

11 22 June 1613:18

hrs

0.17 Hz drop: 50.07 to

49.90Gen pick up

12 24 June 1602:51

hrs0.15 Hz rise: 49.91 to 50.06 Gen reduction

13 25 June 1619:44

hrs0.3 Hz rise: 49.78 to 50.08 Gen reduction

14 5 July 1609:40

hrs

0.23 Hz drop: 50.06 to

49.83Gen pickup

15 13 July 1602:37

hrs

0.24 Hz drop: 49.98 to

49.74Gen pickup

28

486th OCC MINUTES

Inferences on the response of RGMO and FGMO based on average response from April

to July 2016 for Generators who are not participating and Generators who are

participating / response is inadequate was reviewed and given below.

Generators Participating Generators not Participating/Response isinadequate

NTPC MOUDA-- BEST NTPC VINDHYACHAL STAGE 3- data not available

NTPC VINDHYACHAL STAGE -2 KSK- Data submitted for 25th June’16 event and slow

response.

NTPC VINDHYACHAL STAGE 4 KWPCL- Enabled , no response

NTPC VINDHYACHAL STAGE 5 CGPL – No data shared and no response

NTPC SIPAT STAGE 1 JINDAL STAGE 2- RGMO enabled ,Unit under

technical minimum

NTPC SIPAT STAGE 2 GMR CHATTISGARH -Most of the time generation was

Nil

KORBA STAGE-2 JP NIGRIE –RGMO enabled, Unit running under

technical minimum

KORBA STAGE-3 NTPC VINDHYACHAL STAGE 3- data not available

SASAN KSK- Data submitted for 25th June’16 event and slow

response.

29

486th OCC MINUTES

APML TIRODA KWPCL- Enabled , no response

LANCO CGPL – No data shared and no response

MB POWER JINDAL STAGE 2- RGMO enabled ,Unit under

technical minimum

NSPCL GMR CHATTISGARH -Most of the time generation was

Nil

Dhariwal JP NIGRIE –RGMO enabled, Unit running under

technical minimum

ESSAR MAHAN JHABUA – Most of the time generation was Nill

EMCO DB Power – No response

During last OCC, it was agreed that each SLDC will also monitor FRC of 500 MW

and higher units in their intra OCC and share the details in the regional OCC.

Gujarat and Madhya Pradesh have computed their state Generator Frequency

response and shared the data with WRLDC for the event 25th June,2016.a. Mahrashtra SLDC-- Details awaited. Maharashtra to share the action plan. There

were more than 10 units of 500 MW and above.

b. Chattisgarh SLDC – details awaited.

On any event of generation and load loss of more than 1000 MW, WRLDC informed

all regional entity Generators to submit the archived time series data (at least 1

second interval at least) of Grid Frequency vs MW pertaining to their generating units

(that were ON BAR) in excel sheet. Following generating stations have submitted

data to WRLDC.a. Sasanb. JPL-Ic. JPL-IId. KSKe. Moudaf. EMCOg. Jhabuah. DB power

OCC may deliberate on the following issues:i) Regarding submission data to WRLDC

ii) To appraise the actions being taken to tune their governor in compliance with provisions of

IEGC.

Iii) SLDCs to intimate the response of major generating units within their jurisdiction.

30

486th OCC MINUTES

CM (SO), WRLDC informed that the frequency deviation had improved with deployment

of ancillary services and primary response from generators is essential for arresting the

frequency fluctuations. He requested the generators to ensure compliance to the IEGC

provisions.

CGPL informed that software modification is required, however it will take time for

implementation.

KWPCL informed that issue is pending and has taken up with their OEM department.

Maharashtra and Chhattisgarh SLDC agreed to do similar exercise for generators within

their jurisdiction.

GM WRLDC advised SLDCs to take up FRC regularly in their state OCC forum to

sensitize their major generators.

The Sub-Committee noted as above.

9.8 Commissioning of 2nd transformers at 765/400 kV Tiroda and AkolaBoth Tiroda and Akola substations were N-1 non-compliant and concern were being

raised. Now MERC order amending the Licensee has been received. APML informed in

last meeting that MERC order was issued on 30.6.16 and APML would submit DPR

shortly to MERC for approval .

Representative from APML inform that DPR was submitted to MERC for approval.

The Sub-Committee noted as above.

9.9 Mock Black Start Exercise in Western RegionAs mandated by IEGC 5.8 (b), the Black start capable units need to conduct mock black

start exercises once in every 6 months. Western Region has 29 generating stationswith black start capability. Though six months of 2016 have already been passed,

mockdrill was conducted in only one station at Gandhinagar, Madhyapradesh. The joint

mock black start exercise for Kawas and Jhanor generating stations was postponed

from June to August,2016. The details of procedure was finalised in consultation with all

stakeholders.

Committee may finalise the date to conduct the mockdrill in the month of August and

complete the Joint mock exercise.

31

486th OCC MINUTES

All constituents/regional entities are requested to plan the Mock exercise of their blackstart units and submit their plan for compliance of IEGC regulation 5.8(b).

Status of Mockdrill conducted in WR 2011-2016(till date)

StateBlack startSources (asReported)

Black Start Capability Tested (status)

2011 2012 2013 2014 2015 2016

Madhya Pradesh 9 1 3 4 4 1Maharashtra 9 3 2 3 4 0Gujarat 10 2 3 2 6 0Chhattisgarh 1 1 1 1 0Total 29 1 9 5 10 15 1

Sl.No Generating station Date of mock drill exercise done

1Gandhi Sagar, MadhyaPradesh

4th April, 2016

Representative from Gujarat inform that partial Mock Drill was conducted at Kadana,Ukai and CLIPL and the report would be sent to WRLDC.

SSP Mock drill is proposed in the month of Nov’16 or Dec’16.

Kawas and Gandhar Joint mock drill is reschedule for 27 August.Madhya Pradesh informed that mock drill is proposed for 6 hydro station in next 2-3months

Representative from Maharashtra informed that mock drill of at least one station wouldbe conducted next month.Representative from Chhattisgarh informed that Mock Drill of Bango would be conductednext month.

The Sub –committee noted as above.

9.10 AUTOMATIC DEMAND MANAGEMENT SCHEME(ADMS) AS PER IEGC5.4.2(D)

Hon’ble CERC has issued the order on dt.31.12.2015 in the matter of Non-complianceof Regulation 5.4.2 (d) of the Central Electricity Regulatory Commission (Indian

Electricity Grid Code) Regulations, 2010 . which provides for implementation of demand

management schemes by State Load Despatch Centre through their respective State

Electricity Boards/Distribution Licensees.

32

486th OCC MINUTES

Considering the request of the respondents to grant more time to implement ADMS,

Commission has granted the time till 30.6.2016 to implement ADMS, failing which

defaulters shall be liable for action under Section 142 of the Act for noncompliance of

the Regulation 5.4.2 (d) of the Grid Code and order of the Commission. RLDCs are

directed to submit the report in this regard by 31.8.2016.

As per the WRLDC record, in Western Region, Gujarat have completed the

implementation of ADMS successfully. In Madhya pradesh, it was completed in 173 nos.

substations and was under progress in 125 nos. sub stations as on Feb,2016.

Maharashtra have tested one pilot project but no information received regarding total

implementation of ADMS. As per letter no 03-02/SLDC/RA/ADMS/NLDC/PSDF

/2016/1076 dated 22.08.2016 (Copy enclosed as annexure 9.10), CSPTCL is submitting

ADMS proposal to NLDC for funding through PSDF and requested WRPC for

recommendation to NLDC in Form-5. So far no status of ADMS implementation in the

state GOA, UT of DD and UT DNH received at WRLDC.

PGCIL representative informed that the repeater is not available in the six ULDCfibres between Raipur and Raigarh. Repeater is being requested for ULDC fibreand may take time.

Representative from Madhya Pradesh informed that ADMS was implemented

successfully in all stations. Report submitted to WRLDC.

Representative from Maharashtra SLDC informed that 94 stations of 33/11kV identified

for ADMS implementation, but RTU’s were not available in these station. The project

worth 43 crores was given to MSETCL/ MSEDCL which is under approval for PSDF and

implementation of the scheme will take another 18 month after the approval of PSDF.

The Sub-Committee noted as above.

33

486th OCC MINUTES

9.11 ANY OTHER ITEMS:

SA-1 Shifting of 400kV D/C SKS Power Transmission Line for KWPCL RailwaySiding for 10-11 days.

COO, KWPCL informed that 29 KM Railway line for 1x600 MW(KWPCL) Thermal

Power Plant set up in District Raigarh of Chhattisgarh, is in advance stage of

commissioning.

400 kV Transmission Line of M/s SKS power, which is connected to Kotra POWERGRID

needs to be shifted to maintain the clearance as per Railway Safety norms.

The proposed railway line is crossing SKS’s 400kV D/C transmission line in between

Tower No 62 and 63. Tower No 60 and 70 of SKS line are Tension type towers and

Tower No 61 to 69 are Suspension type towers.

To facilitate the construction / lying of the required railway line shut down of a 400 kV

line from SKS to Kotra is required.

Number of meeting with SKS management has taken place, to discuss various

alternatives the discussion remained inconclusive till date.

Considering the urgency of the requirement we need a shut down in from 20 Dec 2016

to 31 Dec 2016.

SKS power was invited as special invitee, but no representative was present during the

meeting.

Member Secretary, WRPC suggested to convey a separate meeting between KWPCL,

SKS Power, WRPC & WRLDC.

The Sub-Committee noted as above.

SA-2: MOUDA UNIT-1 SCHEDULE FOR BOILER PG TEST.DGM (OS), NTPC informed Mouda Commencement of PG test of Boiler & ESP for

Unit#1 is planned in 2nd week of September 2016 a ,as all the preparatory work for PG

test have been completed and BHEL PG test group along with test instruments are

waiting for commencement of test. Therefore, it is requested to arrange for generation

schedule for full load operation during day hours (09:00 hrs to 21:00 hrs) and at least

tech-minimum load during balance period for 10 days.

Also informed that BHEL has requested advance intimation regarding preparation

/readiness 10 days in advance for mobilising their team and instruments .

34

486th OCC MINUTES

Therefore, he requested to provide Generation schedule for conductance of contractual

mandatory PG tests of ESP and Boiler packages of Mouda U#1 so that necessary

planning can be done at our end. After completion of Unit-1 PG test, Unit-2 PG test will

be done.

Member Secretary, WRPC requested that beneficiaries shall support for theMouda Units-1 PG test, constituents agreed to provide generation schedule forcommencement of PG test from 19 September 2016 onwards.The Sub-Committee noted as above.

SA-3: MOUDA STAGE II POWER EVACUATION 400KV MOUDA –BETUL PG LINESREADINESS.DGM (OS) NTPC informed : Mouda Stage II ,Unit-3 test synchronised and COD likely

by September 2016 and Unit-4 by the year end. Presently Mouda power evacuation is

only by Mouda-Wardha 400KV double ckt lines. Mouda –Batul DC line is under

erection. Early readiness of the lines may please be ensured to facilitate reliable power

evacuation.

DGM, PGCIL Nagpur informed that the line is likely to be ready by Dec 2016.

Representative from NTPC requested for early readiness.

Member Secretary, WRPC requested Power gird to adhere to schedule commitment

given by them so as to facilitate the reliable power evacuation from Mouda.

The Sub-Committee noted as above.SA-4: UNAVAILABILITY OF 2ND LINK FOR MOUDA - WRLDC DATA.DGM (OS) NTPC informed : As per scheme we have two gateway servers for providing

data to WRLDC. The data of both stage-1 and stage-2 of NTPC Mouda has been

configured and checked at these servers. The reliability of both these systems for

availability of data to WRLDC through one link via Mouda- Wardha line-1 has been

checked. We are having two modems installed at Mouda for these two gateways.

However, presently due to limitation of extra channel at Wardha end, only one link via

Mouda- Wardha line-1 is available for data transmission. Hence reliability of data

availability to WRLDC is reduced. He requested readiness at the earliest.

Representative from PGCIL informed that 2nd channel will be made available at the

earliest.

35

486th OCC MINUTES

Member Secretary, WRPC requested WRLDC to take up the matter with PGCIL for

ensuring redundancy / availability and provision of second channel so that reliability of

data can be ensured.

The Sub-Committee noted as above.

ITEM NO. 10: DATE AND VENUE OF NEXT OCC MEETING

486th OCC reviewed the meeting roaster and finalized sheet is enclosed at Annexure-10.

As per roster 487th OCC meeting will be tentatively held on 16th September 2016 hosted

by Adani Power Limited. at Ahmedabad. Representative from Adani Power Limited

confirmed the same and welcomed all the participants.

The 488th OCC meeting would be hosted by WRTS-II in the month of October 2016. The

date & venue would be intimated in due course.

The Sub- Committee noted as above

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

Annexure-A

Sl.No. Organisation, Name & Designation Mobile No. E-mail Address

I WRPC1 Shri S.D. Taksande, M.S. 9820878384 ms-wrpc@nic.in2 Shri V.K. Gupta, S.E. 9960792316 operationwrpc@gmail.com3 Shri L.K.S. Rathore, D.D. 9833371844 lksr_ies@nic.in4 Shri Ratnesh Kumar Yadav, A.D. 8903929150 ratneshkumar7437@gmail.com

II MSETCL / MSEDCL/MahaGenco/MSPGCL5 Shri Sanjay S. Kulkarni, C.E. 9819363329 cesldc@mahasldc.in6 Shri D.K. Rokade, S.E. 9167831551 dkrokade@gmail.com

III MPPTCL / MPPGCL7 Shri P.A. R. Bende, C.E. 9425805264 parbende@gmail.com8 Shri P.K. Saxena, S.E. 9425806609 segcc.mppgcl@gmail.com9 Shri R.P. Rakhya, A.E. 9425805163 rprakhya26@gmail.com

IV CSPTCL / CSPGCL10 Shri H.K. Deota, S.E. 9893150920 hemantdeota@yahoo.com

V GETCo.11 Shri B.M. Shah, D.E. 9925212836 ogsldc.getco@gebmail.com

VI WRLDC / POWERGRID12 Shri P. Mukhopadhyay, G.M. 9869438073 pmukhopadhyay@posoco.in13 Smt. Sachala Mishra, A.G.M. 9869450223 mishrasachala@gmail.com14 Shri Kuleshwar Sahoo, A.G.M. 9425294214 kuleshwars@gmail.com15 Shri P.R. Wankhede, D.G.M. 9422811668 wankhede@powergridindia.com16 Shri Vivek Pandey, C.M. 9869404673 vivek.pandey@posoco.in17 Shri Ravi Wadyalkar, C.M. 9423762547 wravi@powergridindia.com18 Shri D. Bruhananda, C,M. 9428504279 bruhanandad@gmail.com19 Shri Abhishek Gupta, Mgr. 9869404650 abhishek_all@yahoo.com

VII NTPC20 Shri S. Mukhopadhyay, G.M. 9453008341 smukhopadhyay@ntpc.co.in21 Shri M.L. Patra, A.G.M. 9425281282 motilalpatra@ntpc.co.in22 Shri A.K. Chandeliya, D.G.M. 9004497151 akchandeliya@ntpc.co.in23 Shri S. Sinha, Sr. Mgr. 9424687298 saritsinha@ntpc.co.in

VIII SASAN POWER LTD.24 Shri P.C. Upadhyay, D.G.M. 9770570525 prakash.c.upadhyay@relianceada.com

IX APML25 Shri Manoj Taunk, G.M. 9099005517 manoj.taunk@adani.com26 Shri A. Mathhur, G.M. 9870663062 akshayv.mathur@adani.com

X TATA POWER27 Shri P.R. Gadave, A.G.M. 9223553341 prgadave@tatapower.com

XI KSK Mahanadi28 Shri Ramakant Upadhyay, Dy. Mgr. 7869916080 ramakant.u@ksk.co.in29 Shri B. Sudarshan Reddy, Dy. Mgr. 9000377721 sudarshanreddy.b@ksk.co.in

LIST OF PARTICIPANTS OF 486 th OCC MEETING OF WRPC HELD AT VARANASI ON 17.08.16 BYJNSTPP, NIGRIE

XII RKM POWER GEN.30 Shri Balasubramanian, Sr. Mgr. 9575301344 bala.c@rkmpowergen.in31 Shri T. Rajesh Kumar, Mgr. 8435000779 t.rajeshkumar@rkmpowergen.in

XIII M B POWER32 Shri S.K. Dubey, D.G.M. 7773011742 santosh.dubey@hppl.in

XIV STERLITE POWER33 Shri Aniket Ghosh, Eng. 9070050482 aniket.ghosh@sterlite.com

XV NSPCL34 Shri Atul Anand, Mgr. 9425283869 atulanand@ntpc.co.in

XVI JPL35 Shri Mohan Kushwaha, D.G.M. 7898905221 mohankushwaha@jindalpower.com

XVII NCA36 Shri M.A.K.P. Singh, Member (P.) 9425066437 makpsingh@yahoo.com.

XVIII ESSAR POWER37 Shjri Manohar Ranjan, Dy. Mgr. 9617789780 manohar.ranjan@essar.com38 Shri Deba Ranjan Mishra, Mgr. 8966902985 deba.mishra@essar.com

XIX JAYPEE NIGRI39 Shri Ashok Shukla, V.P. 9868147860 ashok.shukla@jalindia.co.in40 Shri Vinod Sharma, President 7024144175 vinod.sharma@jalindia.co.in41 Shri Naviw Tingurja, G.M. 8349788717 navin.tingurja@jalindia.co.in42 Shri Vipin Dubey, Sr. Eng. 7389943865 jnstpp.elmg@jalindia.co.in

XX GMR Group43 Shri Pankaj Vaidya, A.G.M. 8451041564 pankaj-vaidya@gmrgroup.in44 Shri S.S. Dubey, A.G.M. 7773012668 satishankar.dubey@gmr.in45 Ms. Anush Gandham, E.E. 7747013560 anusha.gandham@gmrgroup.in

XXI CGPL46 Shri Brajesh Singh, HOD Opn. 9099995744 brajesh.singh@tatapower.com

XXII AVANTHA POWER47 Shri S. Modi, Mgr. 7583888408 saurabh.modi@avanthapower.com

XXIII Reliance DTPS48 Shri Jyotendra N. Patel, G.M. 9325119403 jyotendra.patel@relianceada.com

XXIV GOA Ele. Dept.49 Shri Venkatesh Kuncalienkar, E.E. 8380015010 venk08@rediffmail.com

XXV JSWEL50 Shri Satish Jindal, CEO 9810227433 satish.jindal@jsw.in

XXVI BDTCL51 Shri Allwyn Jaison, A.M. 9893283889 allwyn.jaison@sterlite.com

Anaulagnak 2.1

maah jaulaa[- 2016

1. INTEGRATED OVER AN-HOURek GaMTo maoM samaakilat

1.1 MAXIMUM FREQUENCY 50.16 Hz. BETWEEN 0400 Hrs & 0500 Hrs Hrs. ON 02.07.2016

AiQaktma AavaRi%t

1.2 MINIMUM FREQUENCY 49.82 Hz. BETWEEN 2100 Hrs & 2200 Hrs Hrs. ON 07.07.2016

nyaUnatma AavaRi%t

1.3 AVERAGE FREQUENCY 50.01 Hz.

AaOsat AavaRi%t

2. INSTANTANEOUS ta%kailak

2.1 MAXIMUM FREQUENCY 50.35 Hz. AT07:59:40 Hrs. ON 02.07.2016

AiQaktma AavaRi%t

2.2 MINIMUM FREQUENCY 49.69 Hz. AT 21:42:10 hrs Hrs. ON 07.07.2016

nyaUnatma AavaRi%t

3. %AGE OF TIME WHEN FREQUENCY WAS JULY 2016 JUNE 2016 MAY 2016

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

48.8 hT\ja AaOr 49.2 hT\ja ko baIca3.4 BETWEEN 49.2 Hz. AND 49.5 Hz. 0.00 0.00 0.00

49.2 hT\ja AaOr 49.5 hT\ja ko baIca3.5 BETWEEN 49.5 Hz. AND 49.7 Hz. 0.10 0.13 0.14

49.5 hT\ja AaOr 49.7 hT\ja ko baIca3.6 BETWEEN 49.7 Hz. AND 49.9 Hz. 3.90 7.50 6.96

49.7 hT\ja AaOr 50.2 hT\ja ko baIca3.7 BETWEEN 49.9 Hz. AND 50.05 Hz. 72.35 74.09 69.78

49.9 hT\ja AaOr 50.05 hT\ja ko baIca3.8 BETWEEN 50.05 Hz. AND 51.5 Hz. 23.65 18.28 23.12

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

4.2 NO. OF TIMES FREQUENCY 0 0 0

TOUCHED 48.60 Hz. AavaRi%t 48.60 hT\ja kao CUhI

4.3 NO. OF TIMES FREQUENCY 0 0 0

TOUCHED 51.00 Hz. AavaRi%t 51.00 hT\ja kao CUhI

maoM AavaRi%t ko AaMkD,aoM ka ivavarNa

FREQUENCY PARTICULARS DURING JULY 2016

(AS PER FREQUENCY REPORT OF WRLDC)

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

जुलाई2016

Voltage Profile during the month of July 2016 Annex-2.3

Date

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

1 415 405 425 413 414 403 426 409 424 407 416 400 415 395 425 414 423 4162 424 401 433 414 422 402 428 404 429 408 424 402 416 389 429 419 427 4173 419 401 428 414 419 401 421 405 426 411 419 401 416 389 428 419 426 4174 415 399 426 416 414 399 419 404 423 407 415 399 409 390 426 417 425 4165 418 406 428 414 417 406 422 409 424 410 418 403 414 397 428 419 426 4186 421 400 430 411 421 400 423 403 426 406 420 399 417 393 429 419 427 4187 415 403 427 410 415 403 417 407 421 405 415 401 415 391 427 421 425 4198 414 403 426 412 415 402 418 407 421 406 414 401 411 394 428 421 425 4199 417 404 432 414 420 404 421 407 427 411 420 404 414 386 429 420 427 419

10 418 407 430 420 419 407 420 407 426 416 419 409 415 391 427 421 427 42211 416 403 428 417 417 404 418 406 426 411 424 405 410 388 425 418 426 41912 416 407 428 417 416 404 418 408 426 412 417 403 410 390 424 417 424 419

400kV

Min Min Min Min Min Min

Raipur Raigarh400kV 400kV 400kV 400kV 400kV 400kV 400kV 400kV

रायपुर रायगढ़Bhopal Khandwa Itarsi Damoh Nagda Indorer Gwalior

भोपाल खंडवा इटारसी दमोह नागदा इंदौर

12 416 407 428 417 416 404 418 408 426 412 417 403 410 390 424 417 424 41913 411 399 427 409 414 397 416 401 422 403 411 399 406 386 425 414 426 41614 413 401 426 412 413 401 415 405 422 406 413 399 409 388 423 415 424 41715 416 403 427 413 416 402 418 406 422 408 414 401 411 394 425 418 425 41916 421 401 429 408 419 400 422 405 425 407 417 399 415 393 427 418 427 41817 417 402 423 408 415 401 422 406 422 410 414 402 415 389 427 419 427 41918 416 400 422 407 414 400 418 404 422 407 417 403 414 389 427 419 426 42019 414 400 422 409 413 400 416 403 420 409 415 404 409 386 426 419 426 42020 413 396 420 405 411 394 414 402 419 404 413 399 407 383 423 413 423 41321 413 398 420 405 411 398 414 401 419 406 414 402 407 384 424 416 424 41822 412 396 420 404 411 396 415 401 418 404 414 400 408 384 425 415 426 41623 412 402 424 405 411 399 415 406 418 402 413 400 408 392 423 416 425 41924 413 400 422 407 411 399 417 403 415 404 410 400 411 393 424 417 425 41725 415 399 425 404 411 396 412 404 417 402 412 400 411 389 422 413 424 41626 415 403 424 408 413 400 418 408 419 407 414 401 410 393 424 416 425 41827 418 406 425 414 416 405 420 409 422 411 415 405 413 391 424 417 426 41928 417 406 426 414 416 405 420 409 423 411 415 404 411 394 425 416 425 41729 420 400 428 412 419 400 421 404 426 407 418 400 411 388 426 414 426 41530 416 402 426 409 415 400 418 405 422 408 414 401 411 386 423 415 425 41731 417 407 430 416 417 406 420 409 424 411 415 405 411 391 425 418 426 418

424 396 433 404 422 394 428 401 429 402 424 399 417 383 429 413 427 413

Date

Min

Max Min Max Min Max Max Min Max Max Max Max

1 422 412 425 412 420 399 434 412 420 402 428 406 414 397 426 4092 425 415 425 411 424 400 433 406 423 406 431 409 418 396 429 4043 424 415 424 413 423 408 431 413 422 408 431 412 416 403 427 4124 422 413 425 409 422 404 431 410 423 402 431 404 415 399 427 4105 424 415 427 410 423 405 431 406 420 402 428 406 416 400 427 4136 425 415 427 413 424 400 434 407 421 403 429 406 415 398 426 4097 423 418 426 412 422 403 433 404 419 405 428 410 414 398 425 4098 425 418 427 413 421 405 433 410 419 404 428 406 414 398 425 4079 425 416 426 415 426 409 435 411 422 403 431 404 418 399 425 406

10 423 417 427 420 425 412 434 417 420 406 430 411 412 405 426 41411 422 415 426 415 433 407 435 414 420 401 429 404 417 400 425 406

12 421 414 424 414 423 408 434 412 422 401 428 401 417 399 432 409

13 422 411 427 412 422 404 435 404 422 400 430 402 414 395 425 405

14 420 412 426 410 422 403 431 400 419 399 427 401 415 396 432 407

15 421 414 426 409 422 402 433 401 418 406 430 408 413 398 419 407

16 423 414 425 411 424 402 432 400 423 403 431 404 415 397 424 406

400kV

Min Min Min Min

असोज देहगामBhilai Wardha Dhule Parli Boisar Kalwa Asoj

धुले बोईसर कलवाDehgam

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

16 423 414 425 411 424 402 432 400 423 403 431 404 415 397 424 406

17 424 416 429 411 419 402 432 405 420 403 428 406 412 399 423 409

18 423 415 427 410 428 402 430 403 420 398 426 399 412 397 424 40619 422 415 428 414 431 409 429 404 419 400 425 402 412 400 423 41020 420 410 425 409 428 406 431 404 418 399 425 402 413 396 424 40721 420 412 428 409 430 404 432 402 418 401 426 402 411 397 422 40722 421 410 427 409 429 411 432 409 421 405 427 406 410 399 421 40823 419 412 424 410 430 407 431 408 422 400 428 402 412 396 419 40624 420 412 425 410 427 406 430 406 418 402 424 406 408 398 418 40925 418 409 427 409 420 397 431 403 417 397 424 399 409 395 418 40526 420 412 423 411 421 397 430 406 419 401 423 402 412 397 420 40527 421 413 426 415 419 403 429 407 417 401 425 404 412 399 420 40528 420 412 426 409 420 409 431 405 419 402 427 403 412 399 421 40829 422 410 427 409 418 412 434 404 422 404 431 405 416 399 424 40730 419 411 427 411 421 407 431 405 421 402 429 403 413 401 420 40731 421 414 427 414 421 402 435 412 421 409 429 412 414 402 424 410

425 409 429 409 433 397 435 400 423 397 431 399 418 395 432 404

Date

Max Min Max Min Max Max Min Max Max Ma Max Max

1 420 407 416 406 420 412 415 396 774 760 792 771 802 767 789 762 782 7552 423 406 418 403 420 406 417 395 779 762 800 770 805 761 803 759 798 7573 421 411 416 406 420 411 417 400 777 761 796 771 796 772 799 752 791 7554 419 408 416 405 418 408 417 396 774 760 792 763 801 760 785 759 782 7525 419 409 414 402 418 406 413 394 776 764 796 773 806 766 797 772 788 7636 419 407 410 402 414 406 414 394 780 761 796 768 806 771 800 752 794 7537 418 406 414 400 418 405 412 394 774 763 791 771 803 768 784 758 783 7578 418 407 415 401 418 407 413 395 776 764 782 764 799 770 786 761 781 7559 421 408 418 403 421 408 416 395 776 763 782 762 802 772 792 758 793 762

10 420 412 418 409 421 412 416 400 776 767 791 768 801 780 795 765 790 76811 420 408 418 403 422 409 417 395 774 762 792 773 803 764 789 758 789 76312 420 407 416 404 420 402 417 393 772 763 790 774 794 773 789 763 785 76213 420 404 420 403 422 402 416 392 773 726 793 763 800 764 782 753 778 74514 419 405 421 402 423 406 414 390 770 761 788 767 803 762 789 760 781 74715 418 408 418 409 420 410 411 393 774 763 786 745 803 762 793 768 784 75916 420 407 419 407 421 409 414 388 778 760 794 777 796 763 801 760 791 755

765kV

Min Min Min Min Min Min

Bina Indorer400kV 400kV 400kV 400kV 765Kv 765Kv 765Kv 765Kv

बीना इंदौरKasor Jetpur Amreli Vapi Sipat Seoni Wardhaकासोर जेतपुर वापी सीपत

16 420 407 419 407 421 409 414 388 778 760 794 777 796 763 801 760 791 75517 417 408 419 408 419 411 410 390 776 762 793 773 807 765 794 755 784 75718 418 406 418 405 419 405 411 388 775 763 792 773 806 763 785 749 781 75519 416 409 417 405 420 407 411 390 777 766 787 787 807 776 786 750 779 75520 417 407 418 407 420 411 413 386 773 755 787 787 800 765 783 747 778 74921 418 406 416 404 417 409 416 397 773 762 787 787 803 760 784 751 782 75822 418 406 413 403 418 408 417 399 774 759 787 787 804 762 784 747 782 75423 416 405 412 402 417 408 416 395 775 764 787 787 802 764 788 762 785 75624 415 408 413 404 415 410 411 395 777 763 787 787 803 762 789 760 776 75125 415 405 410 403 415 407 410 389 773 760 787 765 801 763 787 759 784 74726 417 408 413 401 417 407 411 390 775 765 785 767 803 765 788 768 786 76227 417 408 411 403 414 407 411 391 777 767 790 773 804 772 796 769 786 76528 417 408 413 404 417 409 410 391 776 761 789 774 801 770 794 769 786 76329 419 407 415 403 418 408 412 391 773 757 785 763 799 760 799 757 791 75530 418 409 417 403 421 410 411 389 773 757 792 766 802 765 789 756 783 75731 419 410 415 405 420 410 413 397 772 756 792 772 800 772 793 767 785 765

423 404 421 400 423 402 417 386 780 726 800 745 807 760 803 747 798 745

Date

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

1 777 762 784 762 798 781 797 780 789 760 791 774 794 7542 785 762 798 759 802 785 803 785 801 762 795 776 703 7543 784 760 797 758 799 781 800 782 795 769 786 776 804 7514 776 760 782 760 798 780 800 781 791 762 795 775 788 7535 784 766 794 770 799 785 800 785 794 767 794 775 801 7666 785 764 797 763 802 785 803 785 795 764 797 781 800 7557 778 766 785 767 799 788 800 789 791 760 791 781 792 7558 780 767 788 768 800 787 801 789 790 760 791 781 793 7629 781 762 791 762 804 786 806 788 800 767 801 782 799 755

10 782 764 795 765 803 792 806 795 796 772 791 781 800 75911 779 761 789 760 800 785 802 788 794 769 798 771 796 75512 780 768 788 768 796 786 798 788 793 755 788 779 796 758

765Kv 765Kv 765Kv 765Kv 765Kv 765Kv 765KvSasan Satna Tamnar Kotra Vadodara Durg Gwalior

सासन सतना तमनार कोटरा वडोदरा

12 780 768 788 768 796 786 798 788 793 755 788 779 796 75813 775 763 781 761 800 781 802 783 788 755 788 770 788 75214 778 762 787 765 797 783 799 785 792 758 789 780 792 75615 780 764 791 768 798 785 801 787 792 760 789 780 797 76416 783 762 797 764 801 784 803 785 796 764 789 779 804 76217 784 762 796 764 802 784 804 785 788 765 798 777 804 75418 780 757 789 756 802 785 802 787 787 760 795 777 794 74919 776 755 786 750 800 788 802 790 789 766 790 786 793 74720 772 755 779 754 795 775 796 776 788 757 790 761 790 74821 772 754 779 752 797 783 799 785 789 761 794 775 791 74922 770 751 778 745 799 781 801 782 788 764 793 775 792 74423 769 757 778 756 798 786 800 787 789 756 795 776 792 76024 774 757 783 757 800 783 801 784 782 756 794 774 796 76125 771 757 780 757 797 780 799 782 787 753 793 774 793 75826 772 761 779 763 798 785 800 787 792 759 793 774 791 76327 779 764 791 766 798 786 800 787 789 768 793 784 798 76028 780 767 789 769 796 784 798 785 791 767 793 774 796 76729 783 760 794 760 800 779 802 781 795 764 793 771 799 75330 779 759 790 758 799 783 800 783 790 768 790 780 795 74931 782 766 790 768 801 786 802 787 792 768 789 779 795 760

785 751 798 745 804 775 806 776 801 753 801 761 804 744

No. ofOccasions

Max Load Reliefat 49.2 Hz

No. ofOccasions

Max Load Reliefat 49.2 Hz

No. ofOccasions

Max Load Reliefat 49.2 Hz

No. ofOccasions

Max Load Reliefat 49.2 Hz

1 01-Jul-16 0 0 0 0 0 0 0 02 02-Jul-16 0 0 0 0 0 0 0 03 03-Jul-16 0 0 0 0 0 0 0 04 04-Jul-16 0 0 0 0 0 0 0 05 05-Jul-16 0 0 0 0 0 0 0 06 06-Jul-16 0 0 0 0 0 0 0 07 07-Jul-16 0 0 0 0 0 0 0 08 08-Jul-16 0 0 0 0 0 0 0 09 09-Jul-16 0 0 0 0 0 0 0 0

10 10-Jul-16 1 13.53 0 0 0 0 0 011 11-Jul-16 0 0 0 0 0 0 0 012 12-Jul-16 1 17.2 0 0 0 0 0 013 13-Jul-16 3 90.84 0 0 0 0 0 014 14-Jul-16 0 0 0 0 0 0 0 015 15-Jul-16 0 0 0 0 0 0 0 016 16-Jul-16 0 0 0 0 0 0 0 017 17-Jul-16 0 0 0 0 0 0 0 018 18-Jul-16 0 0 0 0 0 0 019 19-Jul-16 0 0 NIL NIL NIL 020 20-Jul-16 0 0 0 0 0 0 0 021 21-Jul-16 0 0 0 0 0 0 0 022 22-Jul-16 0 0 0 0 0 0 0 023 23-Jul-16 0 0 0 0 0 0 0 024 24-Jul-16 0 0 0 0 0 0 0 025 25-Jul-16 0 0 0 0 0 0 0 026 26-Jul-16 0 0 0 0 0 0 0 027 27-Jul-16 0 0 0 0 0 0 0 028 28-Jul-16 0 0 0 0 0 0 0 029 29-Jul-16 0 0 0 0 0 0 0 030 30-Jul-16 0 0 0 0 0 0 0 031 31-Jul-16 0 0 0 0 0 0 0 0

1025 91 490 851Recommonded Load relief at49.2 Hz / 49.0/48.8/48.6 Hz

Gujarat Maharashtra

ANNEX -2.4

DateSl. No Madhya Pradesh( Compiled from the data received from the constituents)

Chhattisgarh

Under Frequency Operation in various Constituent System of Western Region during the month JULY- 2016

ANNEXURE 2.5

Power Cut/Restrictions in Western Region for the month of July-2016

k : 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 Sectors

a) 08 Hrs. power supply in staggered form in rotation of day & night is given to Ag. (However, in MGVCL14 hrs. power supply to AG in Kheda & Anand district from 13th Apr'16 & 10 Hrs. AG supply in Vadodaradistrict from 27th Apr'16.) Single Phase supply given during rest 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

SaUnya NilSaUnya Nil

SaUnya NilSaUnya Nil

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)

01.07.2016 31.07.2016 23:33 21:50 23:12

2.1 Three-PhaseSupply(Irrigation)

01.07.2016 31.07.2016 09:52 09:06 09:39

2.1 Three-PhaseSupply(Mixed)

01.07.2016 31.07.2016 23:22 21:24 22:57

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. 01.07.2016 31.07.2016 23:52 23:23 23:413.2 District Head Qtrs. 01.07.2016 31.07.2016 23:56 23:20 23:483.3 Tehsil Head Qtrs. 01.07.2016 31.07.2016 23:48 22:51 23:36

ga : maharaYT/ Maharashtra

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 Timing

pìt idna kula }jaa- kTaOtITotal Energy Cut

(MUs /dayFrom To

(a) Power Cuts/Restriction on HT/LT Industries(b) Load SheddingFrom 01.07.16 to 31.07.16

SaUnya Nil

@ 0-62 MW

SaUnya Nil

00.00

SaUnya Nil

24.00

SaUnya Nil

@ 0.007 MUs/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

ivavarNa Details sao FromidnaaMk Date

tk ToidnaaMk Date

p`it idna AapUit- GaMTo Supply Hours per day

Max. (Hrs) Min. (Hrs) Average (Hrs)2.1 Three-Phase Supply 01.07.2016 31.07.2016 10:00 08:00 09:00

2.2 Single-Phase Supply 01.07.2016 31.07.2016 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 63.35 MW(Av) For 99.20 Hrs.2.Town Feeders (C-1to C-6 & X) : 0.00(Av)

-

-

-00.00

--

-

-

-

-00.00

--

-

-

-

-

-0.00

--

0.200

-

3. Industries 74.35 (Av) For 77.36 Hrs.0.166

Total Energy Cut/day 0.366( b) Any other information1.Weekly Off/staggering ofpower supply

1day (In a week as perconsumer’s option) 50MW(Av.) - - -

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-Phase Supply 01.07.2016 to 31.07.2016, 6.00Hrs (Power cut)

18.00

2.2 Single-Phase Supply - - - - -2.3 Remarks/Note/ - - - - -

3 Anya jaanakarI / Any other information: SaUnya Nil

Annex-2.6

( )

,Power System Operation Corporation Ltd.(A wholly owned subsidiary company of POWERGRID)

Western Regional Load Despatch Centre,Mumbai

जुलाई 2016Details of forced unit outages during the month of July 2016

अनु

Sl.No

Unitसंघटक

Constituent/IPP

मतामेगावॉटCap.MW

सoFrom

समय

सoFrom

समय

कारणReason

Time Date Date

1. GTPS-1 GSECL 120 01:30 09-04-2016 Still out Still out Long restoration period

2. GTPS-2 GSECL 120 01:30 09-04-2016 Still out Still out Long restoration period

3. Pipavav 1 GSECL 350 00:00 03-04-2015 Still out Still out RSD

4. उकाई Ukai-2 GSECL 120 16:00 09-04-2016 Still out Still out Long restoration period5. Pipavav 2 GSECL 350 00:30 29-04-2016 Still out