AGENDA FOR SPECIAL MEETING WITH KPTCL ON PENDING ISSUES

1. LOW VOLTAGES

A meeting with SLDCs/system study groups to discuss the low voltage and an ATC/TTC issue was

held at SRPC on 26.04.2016 and many recommendations/action points had been finalized. The

minutes of the Meeting are available at SRPC website. The following were highlighted:

Physical Regulatory Procedure as enumerated was agreed for implementation. Step 4 was a

critical step and thus SLDCs needed to take action to avoid any situation which would compel

SRLDC to take such step.

In case Specific instructions for opening 220/230 kV and below lines were not adhered by

SLDCs it would be deemed as violation of provisions of IEGC/EA 2003.

SLDCs to take action proactively by observing falling trend/pattern of voltages even before

receipt of SRLDC messages. SLDCs to also furnish the physical regulatory measures to be

taken up at low voltage nodes in their system. It was felt that physical regulatory measures at

220 kV and below would give optimum results than physical regulatory measures by SRLDC.

SRLDC real time messages/instructions to be adhered within 15 minutes of issuance and the

action taken report should be furnished within 30 minutes.

As a drive, faulty capacitor banks to be rectified immediately.

Chairperson, SRPC would be kindly requested to take up the issue with the concerned since it

was threat to system integrity.

Constituents were requested to revert back on utilization (operational/commercial limitations &

possibilities) of reactive support from wind/solar units even when they are not generating.

States to furnish data of load management actions taken to overcome low voltage conditions.

2. UV RELAYS

In the Special Meeting held on 26.04.20116, KPTCL had informed that the UV relay scheme had not

been implemented. The following locations and logics for UVR had been finalized the meeting:

KPTCL: (@ Nelamangala, Somanahalli, Hoody and Bidadi)

Stage 1: When voltage < 380 kV for 10 minutes then the identified loads has to be

disconnected.

Stage 2: When voltage < 370 kV for 5 minutes then at least 25% of additional ICT load has

to be disconnected. In 120

th OCCM, KPTCL had informed that only for 25 MW automated scheme had been

implemented. Subsequently through manual action the voltages were being controlled.

3. SHUNT CAPACITORS REQUIREMENT

In the Special Meeting held on 26.04.2016, based on SRLDC Study the following Capacitor

requirement had been arrived as given below:

Sub-Station Capacitor – Requirement in

MVAR

Constituent wise

requirement

Nelamangala 160 Karnataka-505 MVAR

Hoody 185

Somanahalli 160

4. REACTOR STATUS

5. REACTIVE POWER PLANNING

In the 4th NPC meeting held on 10.12.2015 (MoM dated 01.01.2016), the following had been noted:

All States to carry out reactive power planning not only at transmission level but also at

distribution level and prepare schemes to maintain voltage profile as per relevant

Regulations / Standards.

NPC agreed that states should adopt a proactive approach in the matter of reactive power

planning, and that the provisions regarding reactive power planning similar to those

mandated in the IEGC for the CTU should be included in the respective State Grid codes. It

was decided that RPCs would follow up the matter further with the states.

Utility Reactive power Planning Voltage

Level

Remarks

Karnataka Bengaluru Tr. Zone:708.8 MVAR

Bagalkot Tr. Zone :258.1 MVAR

Hassan Tr. Zone :136.3 MVAR

Mysore Tr. Zone :60.9 MVAR

Gulbarga Tr. Zone :98.60 MVAR

Tumkur Tr. Zone :281.3 MVAR

Total of 1544 MVAR which were

planned to be implemented new

PO is placed. Bangalore zone

had been retendered.

Entity Bus Name Status REMARKS

KPTCL

Hoody By October 2016 As identified in the 22nd

Standing Committee Meeting on Power System Planning of SR and as approved in the 4

th SRPC Meeting

held on 7thJune 2007

Nelamangala

By June 2016

Davangere

125 MVAR 39

th SC

Talguppa

125 MVAR 39

th SC

6. SCADA/COMMUNICATION

6.1. OPGW stringing works on the following KPTCL lines was pending to be completed:

Hoody - LILO point of Hoody – Nelmangala

Hoody – HSR

Hoody – HAL

NRS – Peenya- Hebbal

Hasan – Shantigram

MS, SRPC letter dated 13.06.2016 to MD, KPTCL is at Annexure.

6.2. VC facility from SLDC to SRLDC

7. AUTO RECLOSE

Chikkodi- Mudshingi/Talangde lines

Regarding Ambewadi-Ponda KPTCL had informed that the R&M works were going on for this line and the A/R would be covered in R&M works.

8. UFR & DF/DT RELIEF

For the period 16.05.2016 to 31.05.2016 the following was the relief available vs relief expected:

Expected Relief

as per SRPC

Monitoring Relief Max Min Avg

3539 3557 3090 1491 2454

87 % 42 % 69 %

9. OUTAGE COORDINATION

As per the outage procedure, utilities are to submit the S/D proposals for the subsequent month by

3rd

of the current month. Non-availing the OCC approved shut down was a matter of concern.

10. TRANSFER CAPABILITY DETERMINATION BY STATES

As per 4th NPC Meeting, all states were required to compute monthly ATC/TTC limits for their control

area. Monthly TTC/ATC would be uploaded by SLDCs in their respective websites and also

communicated to concerned RLDC & NLDC subsequently. A workshop was conducted on ATC/TTC

computations was held on31st March and 1

st April 2016. However, no official from KPTCL, LD had

attended. Dedicated Reliability Group (Study Group) at SLDC was very much required.

11. REASONS FOR DEMAND -SUPPLY GAP AND ITS VARIATION

This issue of furnishing the load shedding details in different heads along with the reasons by states

had been taken up in the NPC Meetings. MoP/CEA specifically needed the reasons for load shedding

like transmission constraints, distribution constraints, regulatory constraints viz the power purchase

not allowed beyond an agreed cost or quantum, natural calamities, tripping of some of major

transmission lines etc.

12. PATROLLING / MAINTENANCE OF CRITICAL LINES AND SUBSTATIONS

In recent times insulator tracking has been observed in the Transmission lines and Substations

located in the coastal and polluted areas. It is pertinent that the Patrolling and Maintenance needs to

be carried out for the critical lines as per the Patrolling Guidelines. It is also imperative that the

switchyards of the generators located in coastal areas need to be maintained stringently. SRPC vide

letter dated 05.05.2016 had communicated to the concerned in this regard. The following lines

require special attention and patrolling and maintenance schedule/carried out needs to be furnished

regularly:

400 kV Kaiga-Guttur D/C

400 kV Guttur-JSWEL S/C

400 KV Guttur-HiriyurS/C

400 kV Hiriyur- Nelmanagala

400 kV BTPS- JSWEL S/C

400 kV RTPS-BTPS S/C

400 kV UPClL-Hassan D/C

220 kV Nagjhari- Kodasalli D/C

220 kV Nagjhari- Ambewadi D/C

220 kV Nagjhari- Hubli D/C

220 kV Nagjhari- Bidna/Hublil D/C

220 kV Kadakola-Kanianmpetta S/C

13. RESTRICTED GOVERNOR MODE OF OPERATION (RGMO)/FGMO OF GENERATING UNITS

13.1 RGMO response was being analyzed in the OCC meetings and inadequate response was an

area of concern and there was no noticeable improvement. SLDCs were to analyze RGMO

instances posted by SRLDC for the generators in their control area and initiate suitable

action as per orders in respect of 84/MP/2015. Inadequate Response was to be taken up

with SERC (Petition No.302/MP/2013).

13.2 RLDCs/SLDCs have inherent powers to restrict the schedule corresponding to 100% if installed

capacity without vide valve open condition even at part loads ensuring primary governor response

at all stages. It was reiterated that unit should not be scheduled beyond 100% of MCR rating. In

view of CERC Order w.r.t Petition No.302/MP/2013, SLDCs need to restrict the state generators

schedule suitably.

14. LOW VOLTAGE RIDE THROUGH (LVRT)/PROVISIONS OF CEA REGULATIONS IN RESPECT OF

RENEWABLES

The 3rd

meeting was scheduled for 5th July 2016 in Chennai. Nodal officer nomination was

pending from SLDC. The information sought as per Format A & B has not been furnished.

There was on reported update on the other issues also.

15. DEMAND ESTIMATION FOR OPERATIONAL PURPOSE (CLAUSE 5.3 OF IEGC)

Each SLDC was to create a mechanism and facilities to facilitate on-line demand estimation of

demand for daily operational purpose for each 15 minutes block by 01.01.2011. It was required for

Ancillary Services, RSD/TM schedules etc also.

16. SPS LOADS FOR KKNPP UNIT II

174 MW of loads to be identified and implemented.

17. INSTANTANEOUS SCHEME FOR SUDDEN WITHDRAWAL OF WIND

Like Tamil Nadu, KPTCL also needs to firm up a scheme for sudden withdrawal of Wind generation.

18. PHASE-I & PHASE-II ACTIVITIES IDENTIFIED IN PROTECTION AUDIT

Phase- I& Phase-II activities identified in Protection Audit need to be completed in a time bound

manner. As per Order dated 18.08.2015 on Petition No. 374/MP/2014 extension upto 15.01.2016

had been allowed. KPTCL filed a separate application before CERC on 07.01.2016 seeking time

extension up to 31.05.2017, and the same is under consideration by CERC.

19. UPDATE ON ACTIONABLE POINTS IN RESPECT OF BMRCL

To expedite on the actionable points of KPTCL/BMRCL which were finalized in the special meeting.

Report of BMRCL on 17th & 21

st December 2015 incidents

Relays and settings at BMRCL needed to be reviewed, tested and verified Welcast SS connectivity to Yelhanka SS Mock Blackstart Exercise at BMRCL and through KPTCL -quarterly

20. OVERLOADING OF THE TRANSMISSION ELEMENTS

Line loading on 400 kV Gooty – Nelamangala, Gooty –Somanahalli & Hiriyur-Nelamangala lines

had gone very high failing to satisfy N-1 criteria

N-1 violation of Mysore ICTs

Rectification of Hoody ICT and maintenance of healthy spares.

21. ISSUES TO BE TAKEN UP WITH SERC

21.1. Roadmap to Operationalise Reserves in the Country

Hon’ble CERC vide Order dated 13.10.2015 on Petition No. 11/SM/2015 in the matter of Roadmap

to operationalize Reserves in the country had directed as follows:

(b) The Commission reiterates the need for mandating Primary Reserves as well as Automatic

Generation Control (AGC) for enabling Secondary Reserves.

(i) All generating stations that are regional entities must plan to operationalise AGC along with

reliable telemetry and communication by 1st

April, 2017. This would entail a one-time expense for

the generators to install requisite software and firmware, which could be compensated for.

Communication infrastructure must be planned by the CTU and developed in parallel, in a cost-

effective manner.

(ii) On the other hand, National/Regional/State Load Dispatch Centres (NLDC/RLDCs/SLDCs)

would need technical upgrades as well as operational procedures to be able to send

automated signals to these generators. NLDC /RLDCs and SLDCs should plan to be ready

with requisite software and procedures by the same date.

(iii) The Central Commission advises the State Commissions to issue orders for intra-state

generators in line with this timeline as AGC is essential for reliable operation of India’s large

inter-connected grid.

(c) To start with, a regulated framework in line with the Ancillary Services Regulations would need

be evolved for identification and utilizing of spinning reserves and implemented with effect from 1st

April, 2016. This framework may continue till 31st

March, 2017.

……………

(d) In the long term, however, a market based framework is required for efficient provision of

secondary reserves from all generators across the country. For this, NLDC/POSOCO is directed to

commission a detailed study through a consultant and suggest a proposal to the Commission for

implementation by 1st April, 2017, giving due consideration to the experience gained in the

implementation of Spinning Reserves w.e.f. 1st April, 2016.

21.2. Framework on Scheduling and Imbalance Handling for Variable Renewable Energy Sources (Wind and Solar)

21.3. Compliance of the Central Electricity Authority (Technical Standards for Grid Connectivity) (Amendment) Regulations, 2013 by new generating units being commissioned and getting connected to the grid.

Para 63 of Order in Petition No. 420/MP/2014 66

63. As the Central Electricity Authority (Technical Standards for Grid Connectivity) (Amendment) Regulations, 2013 is applicable for wind generating stations and generating stations using inverters and are connecting at voltage level 66 kV and above to the grid after 15.4.2014. Therefore, all the wind generating stations are directed to comply with the provisions of CEA Technical Standards for Connectivity Regulations. We further direct CTU and STUs to make provisions in this regard in their Connection Agreements to ensure that wind energy generators comply with the provisions of CEA Technical Standards for Connectivity Regulations for grid connectivity before granting connectivity to the grid.

22. UPCOMING TRANSMISSION SYSTEM

Sl.

No

Name of

Transmission

Element

Exe.

Agency Sch. CoD Expected

date

Remarks

1 400 kV Tumkur-

Yelahanka D/C line

PGCIL June 2014 Severe RoW problem.

400 kV Yelahanka S/S is

ready.

2 LILO of 400 kV

Nelamangala –

Hoody at Yelahanka

PGCIL Severe RoW problem.

400 kV Yelahanka S/S is

ready.

3 400 kV Somanahalli –

Dharmapuri D/C

PGCIL 2 months

once ROW

issues are

resolved

DC (Urban) had ordered

compensation of 100 % of

fair value for tower footing

and 55 % for line corridor.

With this, cost of 30 kM

line was working out to as

high as Rs 90 crore.

Hon’ble Power Minister of

Karnataka was scheduled

to make a site visit shortly

to look into compensation

issues etc

3 220 kV Yelahanka

PG- Yelahanka Cable

KPTCL Max Jan

2017

6/7 months’ time (5 kM)

once the award was in

place (max 10 Months)

4 400/220 kV Yelahanka S/S – 220 kV BIAL S/S D/C

KPTCL

5 220 kV Tumkur –

Antharasana Halli

D/C

KPTCL July 2016 Tenders had been placed

on 18.03.2015 and it

would take 18 months for

completion

6 400 kV Tumkur S/S –

220 kV Tumkur S/S

D/C

KPTCL October

2016

Tenders had been

placed on 18.03.2015 and

it would take 18 months

for completion

23. Transmission system of KPTCL for evacuation of power from Yermarus TPS (2x800 MW)

Transmission elements Imp. Agency

Line Length (ckm)/

MVA cap.

Sch. COD Constraints/ Remarks

Bellary 400 kV PS near ‘BTPS’

JSWEL (KPTCL)

Jul’16(As informed by JSWEL)

Gulbarga 400/220 kV substation

KPTCL 2x500 New Scheme in place of old one is approved in 56

th

TCCM meeting held on30.11.2013. Land is in possession of KPTCL. Preliminary survey work of 400 kV line is completed. Estimate to be prepared

Yermarus TPS - Gulbarga 400 kV D/C line (QM)

KPTCL Estimate to be prepared.

400 kV SS at Chikkanayakanahalli (C.N Halli) near “Loop in Loop Out” (LILO) point on the Nelamangala – Talaguppa 400 kV lines to Hassan.

KPTCL 2x500 MVA

Land Acquisition is under process. In 39

th SCPSPSR a

step down SS with 2 x 500 MVA, 400/220 kV ICTs was agreed.

LILO of both the circuits of Nelamangala – Talaguppa 400 kV lines to the proposed pooling station near CN Halli.

KPTCL CN Halli land identified near the intersection point of all the proposed lines.

Termination of 400 kV D/C line feeding 400/220 KV station at Hassan from Nelamangala – Talaguppa line at CN Halli 400 kV pooling station.

KPTCL After CN Halli land identification, survey would be taken up.

Yermarus TPS - Bellary Pooling Station 400 kV D/C line with quad moose conductor

KPTCL 300 (400 kV MC Line (5.138 Kms) and 400 kV DC line (137.355 Km) totally for a route length of 142.493 Kms)

Aug 2017 (2 years from the award)

DPR approved on 26.02.2015. Tendered on 09.03.2015. Techno Commercial bids opened on 21.05.2015. Price bids opened on 01.07.2015. The works have been awarded in October 2015.

24. TRANSMISSION SYSTEM ASSOCIATED FOR TUMKUR ULTRA MEGA SOLAR PARK(2000 MW)

Bellary Pooling Station - C.N.Hally 400 kV D/C line with quad moose conductor

KPTCL 360 Survey using MST conducted and reports submitted to zonal office vide ltr no:1682-83 Dt:30.06.15 and the same is submitted for approval to CEE(P&C) vide ltr.no.2504-06 dt 7.7.2015

Bellary PS to Madhugiri line (765/400kV V.N.pura substation (PGCIL)

a) Madhugiri to Rampura limits): 400kV DC line with Quad Moose ACSR (188.74 Kms)

b) Bellary pooling Stn 400 kV to Rampura limits (Kelagina Kanavi): (43.018 Kms)

KPTCL Under Execution by KECIL

By Kalpataru

PTL

380 22-Dec-16 29

th SRPC

March 2017 24-Apr-17 29

th SRPC

March 2017

Out of 498 locations, 421 excavations over, 418 stubs concreted, 368 towers erected & 100 km stringing completed Out of 125 locations, 82 excavations over & 75 stubs concreted

Bellary TPS – Bellary Pooling Station 400 kV D/C line with quad moose conductor

KPTCL 10 In 39th SCPSPSR it was

agreed to drop the proposal.

De-link 400 kV S/C line running between RTPS-BTPS-JSW-Guttur with JSW Bus

KPTCL

Agreed in 39th SCPSPSR

JSW TPS – Bellary Pooling Station 400 kV D/C line with quad moose conductor

KPTCL Jul’16(As informed by JSWEL)

Only after all other Transmission Elements under Stage I are commissioned. KPTCL/JSW to discuss to take up this work as dedicated transmission line by the generator.

Additional JSW TPS – Bellary Pooling Station 400 kV D/C line with quad moose conductor

Agreed in 39th SCPSPSR

400 kV BTPS-Guttur D/C line (QM)

Agreed in 39th SCPSPSR

Transmission Elements Line Length

(ckm)/ MVA

Capacity

Impleme

nting

Agency

Sch COD Ant COD/

Act COD

Constraints/ Remarks

Phase-I : Transmission system for Tumkur Ultra Mega Solar Park (1000 MW) April 2017

400/220 KV Tumkur PS

Bus Reactor

3 x 500 MVA

1 x 125 MVAR

LILO of 400kV Gooty –

Tumkur (Vasantnarsapur)

D/C at Tumkur

(Pavagada) PS

5

400 kV Tumkur P S -

Hiriyur D/C

110 For 400kV Tumkur –

Mysore line section

routed via Hiryur S/s

LILO of 400kV Bellary

Pool – Tumkur

(Vasantnarsapur) D/C

(Quad)(both

circuits)[KPTCL line] at

Tumkur (Pavagada)

Pooling station*

*KPTCL would complete

Bellary pooling station –

Tumkur (Vasantnarsapur)

line D/c (Quad) by

December- 2016

Phase-II : Transmission system for Tumkur Ultra Mega Solar Park (1000 MW) Sep 2017

Augmentation of

400/220KV Tumkur PS

2nd

Bus Reactor

2 x 500 MVA

1 x 125 MVAR

Hiriyur–Mysore 400 kV

D/C line

Switchable Line Reactor

at Mysore

190

1 x 80 MVAR

Tumkur PS – Mysore –

De LILOed at Hiriyur

400 kV Tumkur PS-

Devanhally (KPTCL) D/C

(Quad)

125 KPTCL would complete

establishment of 400/220

kV substation at

Devanahally including

inter-linking 400 kV and

220 kV lines before

Phase-II at Ultra Mega

Solar Power Park.

Third 400/220 kVMVA

transformer at Tumkur

(Vasantnarsapur)

1 x 500 MVA

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