वाषक रपोट - Kar · 2018-12-28 · ANNUAL REPORT BENGALURU ... VII Installed...

वा�षक �रपोट�

ANNUAL REPORT

BENGALURUBENGALURUBENGALURU

SOUTHERN REGIONALSOUTHERN REGIONAL POWER COMMITTEE POWER COMMITTEESOUTHERN REGIONAL POWER COMMITTEE

दि�ण �े�ीय िव�ुत सिमितदि�ण �े�ीय िव�ुत सिमितदि�ण �े�ीय िव�ुत सिमित

ब�गलू�ब�गलू�ब�गलू�

2017-18

keshavanTypewritten Text





C O N T E N T S

(1) Committee Members (2) Index of Annexures (3) Index of Exhibits (4) Highlights & Salient Features (5) CHAPTERS :

CHAPTER - 1 Constitution, Functions & Organisational Set Up of Southern Regional Power Committee

CHAPTER - 2 Regional Grid Performance

CHAPTER - 3 Grid Protection And System Studies

CHAPTER - 4 Commercial & Energy Accounting Activities

CHAPTER - 5 Operational Activities

CHAPTER - 6 Srpc & Tcc Meetings

CHAPTER - 7 Reports And Certification

CHAPTER - 8 Implementation of Official Language Policy

CONSTITUTION OF SOUTHERN REGIONAL POWER COMMITTEE (As on 31.03.2018)

Chairperson : Shri D. Prabhakar Rao, Chairperson, SRPC & CMD, TSTRANSCO, Hyderabad

MEMBERS

1 Shri D. Prabhakar Rao Chairperson, SRPC & CMD, TSTRANSCO, Hyderabad

2 Shri D. Prabhakar Rao CMD, TSGENCO, Hyderabad

3 Shri R.K. Verma Member (GO&D), CEA, New Delhi

4 Shri K.Vijayanand CMD, APTRANSCO, Vijayawada

5 Shri K.Vijayanand Managing Director, APGENCO, Vijayawada

6 Shri Y. Adam Director (Grid & Tr. Mgmt), APTRANSCO, Vijayawada

7 Shri H. Y. Dora CMD, APSPDCL, Tirupati

8 Shri Jawaid Akhtar Managing Director, KPTCL, Bengaluru

9 Shri G. Kumar Naik Managing Director, KPCL, Bengaluru

10 Shri T.H.M. Kumar Managing Director, PCKL, Bengaluru

11 Shri H. Nagesh Director (Transmission), KPTCL, Bengaluru

12 Shri M.T. Manjunath Chief Engineer (E), SLDC, KPTCL, Bengaluru

13 Dr. K. Ellangovan CMD, KSEB Ltd., Thiruvananthapuram

14 Smt P. Vijayakumari Director (Tr. & System Opn.), KSEBL, Thiruvananthapuram

15 Shri N.S. Pillai Director (Finance), KSEBL, Thiruvananthapuram

16 Shri N. Venugopal Director (Distribution & Safety), KSEBL, Thiruvananthapuram

17 Shri Vikram Kapur Chairman, TNEB, Chennai

18 Shri S. Shanmugam Managing Director, TANTRANSCO, Chennai

19 Smt M.A. Helen Director (Distribution), TANGEDCO, Chennai

20 Smt A. Axilium Jayamary Director (Operation), TANTRANSCO, Chennai

21 Shri G. Narsing Rao Director (HR & Grid Operation), TSTRANSCO, Hyderabad

22 Shri G. Raghuma Reddy CMD, TSSPDCL, Hyderabad

23 Dr. S. Sundaravadivelu Secretary (Power), Govt. of Puducherry, Puducherry

24 Shri R.P. Sasmal Director (Operation), PGCIL, Gurgaon

25 Shri A.K. Gupta Director (Commercial), NTPC, New Delhi

26 Shri V. Thangapandian Director (Power), NLC, Neyveli

27 Smt Ruby Srivastava Director (Finance), NPCIL, Mumbai

28 Shri Siva Rama Krishnan M CEO, NTECL, Vallur, Tamil Nadu

29 Head - Bengaluru Office, UPCL, Bengaluru 30 Shri Satish Jindal COO (Trading), JSWEL, New Delhi

31 Shri K.V.S. Baba CEO, POSOCO, New Delhi

32 Shri A.R. Neelakanta Pillai CEO, NTPL, Tuticorin, Tamil Nadu

33 Shri A. Mohan Nargund CEO, TPCIL, Nellore, Andhra Pradesh

34 Shri S.M. Zafrulla MD, Coastal Energen Private Limited, Chennai

35 Shri N. Ramesh CEO, IL&FS Tamil Nadu Power Company Limited, Cuddalore

36 Shri P. Panduranga Rao CEO, LKPPL, Hyderabad

37 Shri S.R. Bhat Member Secretary, SRPC, Bengaluru

ANNEXURES

I Officers of SRPC as on 31.03.2018 II Monthly Demand Pattern & Shortages during 2017-18 III Month wise Energy Requirement, Consumption and Shortages

during 2017-18 IV Load Factor during 2017-18 V Details of Power Cuts in Southern Region during 2017-18 VI Installed Capacity in Southern Region as on 31.03.2018 and

Generation during 2017-18 VII Installed Capacity in Southern Region from 2013-14 to 2017-18 VIII Performance of Thermal/Nuclear Power Stations in Southern

Region during 2017-18 IX Outages of Thermal/Nuclear Power Stations during 2017-18 X Frequency Profile during 2017-18 XI Operation of Inter-State / Inter-Regional Tie Lines during 2017-18 XII Entitlements / Schedule / Actual Drawal, Energy Exchanges,

Energy Wheeled during 2017-18 XIII Allocation of shares from Central Sector Stations to constituents

of Southern Region as on 31.03.2018 XIV Particulars of Major Hydel Reservoirs in Southern Region during

2017-18 XV Generating Units Commissioned during the year 2017-18 XVI Progress of Generation Schemes as on 31.03.2018 XVII 765 kV, 400 kV and 220/230 kV Substations commissioned during

2017-18

XVIII Progress of construction of 765 kV, 400 kV and 220 kV/230 kV and

above Sub-Stations during 2017-18 XIX Transmission Lines commissioned during the year 2017-18 XX Progress of Transmission lines under construction in Southern

Region during 2017-18 XXI Installation of Shunt Capacitors in Southern Region during the year

2017-18 XXII Voltage Profile at selected nodes of 765 kV, 400 kV Regional Grid

during 2017-18 XXIII Meetings held during the year 2017-18 XXIV Grid Disturbances / Grid Incidents occurred in Southern Region

during 2017-18 XXV Special Protection Schemes (SPS) in Southern Region XXVI Details of Phasor Measuring Units installed in Southern Region as

on 31.03.2018

EXHIBITS

I Power Map of Southern Region as on 31.03.2018 II Growth in Installed Capacity in Southern Region during 2013-14 to 2017-18 III Growth of Peak Demand during the year 2013-14 to 2017-18 IV Annual Load and Frequency Duration Curves of Southern

Region for 2017-18 V Demand and Frequency Curves for Regional Maximum Demand Day during 2017-18 VI Demand and Frequency Curves for Regional Minimum Demand Day during 2017-18 VII Generation in Southern Region during 2016-17 and 2017-18 VIII Growth of Generation in Southern Region from 2013-14 to 2017-18 IX Growth of Gross Generation from 2013-14 to 2017-18 X Particulars of Important Reservoirs of Southern Region during

2017-18

मखु्य �सगं व

�मखु उपलिब्धया ँ

HHIIGGHHLLIIGGHHTTSS &&

SSAALLIIEENNTT FFEEAATTUURREESS

�मखु बात� / HIGHLIGHTS : 2017-18

(1) स् थािपत क्षमता / Installed Capacity (Source CEA) : जल / Hydro : 11,808.03 MW गैस / Gas : 6,473.66 MW तापीय / Thermal (Coal) : 45,782.02 MW नािभक�य / Nuclear : 3,320.00 MW कुल स्थातिपत क्षमता (ज+गै+ता+ना) / Total Installed Capacity (H + G + Th + Nu) : 67,383.71 MW

डीजल / Diesel : 761.58 MW पवन / Wind+RES : 34,369.28 MW

कुल योग / Total (Source CEA) : 1,02,514.57 MW

िपछले वषर् क� तुलना म� वृि� / Net increase over previous year : 11.66 %

(2) मागँ / Demand (Gross) : �भािन्धत अिधकतम चरम भार / Maximum peak load catered : 48,687 MW िपछले वषर् क� तुलना म� वृि� / Net increase over previous year : + 5167 MW अिधकतम आबंिधत माँग / Maximum Unrestricted Demand : 48,862 MW िन�तम माँग / Minimum Demand : 25,447 MW क्षमता म� कमी (म.ेवा) / Demand Shortage ( MW) : - 68 to 1095 MW क्षमता म� कमी (%) / Demand Shortage (%) : - 0.18 to 2.52 %

�णाली भार घटक / System Load Factor : 77.27 %

(3) उत्पादन और उपयोग / Generation and Consumption : कुल ऊजार् उत्पादन / Gross Energy Generation : 3,04,884 MU िपछले वषर् क� तुलना म� कमी/वृि� / Net decrease over previous year : - 06.00 %

ऊजार् का उपयोग / Energy Consumption (Gross) : 3,26,417 MU आबंिधत ऊजार् आवश्यकता / Unrestricted Energy Requirement : 3,27,023 MU ऊजार् म� वृि� / कमी (%) / Energy Surplus / shortage (%) : + 0.01 to 0.87 %

��ेन्सी रेजीम / Frequency Regime : आई.ई.जी.सी क� ��ेन्सी 49.90 Hz से 50.05 Hz तक होने का समय Time of frequency remained within IEGC Range between 49.90 Hz to 50.05 Hz : 76.88 %

वास्तिवक ऊजार् िविनमय / Actual energy exchanges : पि�म क्षे� को िनयार्�टत ऊजार् / Energy Export to WR : 202.524 MU पूवर् क्षे� को िनयार्�टत ऊजार् / Energy Export to ER : 91.768 MU पि�म क्षे� से आयाितत ऊजार् / Energy Import from WR : 20,217.598 MU पूवर् क्षे� से आयाितत ऊजार् / Energy Import from ER : 10,120.892 MU

Break-up of Installed Capacity in Southern Region (Fuel wise) according to CEA as on 31.03.2018

31 माचर् 2018 को दिक्षण क्षे� क� स्थािपत क्षमता का िवभाजन

Total Installed Capacity in Southern Region = 102514.57 MW

Hydro 11808.03

Thermal (Coal) 45782.02

Gas 6473.66 Diesel

761.58

Nuclear 3320.00

Wind + R.E.S 34369.28

Hydro Thermal (Coal) Gas Diesel Nuclear Wind + R.E.S

All Units in MW. R.E.S = Renewable Energy Source

Staets / Sectors Andhra Pradesh Karnataka Kerala Tamil Nadu Telangana Puducherry Central SectorTotal Installed Capacity 20999.68 23170.27 3159.92 23783.26 12972.28 32.66 18396.50

31.03.2018 को दिक्षण क्षे� क� राज्य वार स्थािपत क्षमता

Installed Capacity of States in Southern Region as on 31.03.2018 in MW (according to CEA)

(के.िव.�ा. के अनुसार)

Total Installed Capacity in Southern Region = 102514.57 MW

Hydro 1673.6


Gas 3929.52

Diesel 36.80

Nuclear 0.00

Wind + R.E.S 6475.88

आं� �देश / Andhra Pradesh

Hydro 3599.80


Gas 0.00 Diesel 153.12 Nuclear 0.00

Wind + R.E.S 12438.85

कनार्टक / Karnataka

Hydro 1881.50 Thermal (Coal) 615.00

Gas 174.00

Diesel 159.96

Nuclear 0.00 Wind + R.E.S 329.46

केरल / Kerala

Hydro 2203.20


Gas 1027.18 Diesel 411.70

Nuclear 0.00

Wind + R.E.S 10983.51

तिमल नाडु / Tamil Nadu

Hydro 2449.93


Gas 950.88 Diesel 0.00

Nuclear 0.00

Wind + R.E.S 3649.52

तेलंगाना / Telangana

Hydro 0.00


Gas 359.58 Diesel 0.00

Nuclear 3320.00

Wind + R.E.S 491.90

केन्�ीय क्षे� / Central Sector

MAX DEMAND : 48686.6 MW on 29.03.2018 MAX U.R DEMAND = 48862 MW

Total Consumption during 2017-18 = 326417 MU Energy Requirement (2017-18) = 327023 MUअपेिक्षत ऊजार् / Energy Requirement

मांग / Demand

दिक्षण क्षे� / Southern Region2017-18 के दौरान महीनावार अिधकतम मांग एवं अपेिक्षत ऊजार्

Month wise Maximum Demand and Energy Requirementduring 2017-18

21000

23000

25000

27000

29000

31000

33000

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MU

Actual 2016-17 Unrestricted 2016-17 Actual 2017-18 Unrestricted 2017-18

35000

37000

39000

41000

43000

45000

47000

49000

51000

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MW

Simultaneous Actual - 2016-17 Unrestricted - 2016-17 Simultaneous Actual - 2017-18 Unrestricted - 2017-18

MAX DEMAND : 9324 MW on 16.03.2018 MAX U.R DEMAND = 9334 MW

Total Consumption during 2017-18 = 60573 MU Energy Requirement (2017-18) : 60668 MUअपेिक्षत ऊजार् / Energy Requirement

आं� �देश / Andhra Pradesh2017-18 के दौरान महीनावार अिधकतम मांग एवं अपेिक्षत ऊजार्



3800

4300

4800

5300

5800

6300

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MU


6500

7000

7500

8000

8500

9000

9500

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

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r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MW




कनार्टक / Karnataka2017-18 के दौरान महीनावार अिधकतम मांग एवं अपेिक्षत ऊजार्



4500

5000

5500

6000

6500

7000

7500

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MU


7400

7900

8400

8900

9400

9900

10400

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

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नव�र

/ Nov

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r

िदस�र

/ Dec

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r

जनवरी

/ Ja

nuar

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फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MW




केरल / Kerala2017-18 के दौरान महीनावार अिधकतम मांग एवं अपेिक्षत ऊजार्



1700

1900

2100

2300

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MU


3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MW


MAX DEMAND : 15230 MW on 19.04.2017 MAX U.R DEMAND = 15256 MW


तिमल नाडु / Tamil Nadu2017-18 के दौरान महीनावार अिधकतम मांग एवं अपेिक्षत ऊजार्



6500

7000

7500

8000

8500

9000

9500

10000

10500

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MU


12000

12500

13000

13500

14000

14500

15000

15500

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

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r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MW




तेलंगाना / Telangana2017-18 के दौरान महीनावार अिधकतम मांग एवं अपेिक्षत ऊजार्



3500

4000

4500

5000

5500

6000

6500

7000

7500

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

y

फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MU


6000

6500

7000

7500

8000

8500

9000

9500

10000

10500

11000

अप्रल

/ Ap

ril

मई

/ May

जून

/ Jun

e

जुलाई

/ Ju

ly

अग�

/ Au

gust

िसतंबर

/ Sep

tem

ber

अ�ूबर

/ O

ctob

er

नव�र

/ Nov

embe

r

िदस�र

/ Dec

embe

r

जनवरी

/ Ja

nuar

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फरवरी

/ Fe

brua

ry

माच� /

Mar

ch

MW


वषर् 2017-18 म� दिक्षण क्षे� क� ��ेन्सीSouthern Grid Frequency during 2017-18

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

अपै्रल / Apr-17

मई / May-17

जून / June-17

जुलाई / July-17

अग� / Aug-17

िसतंबर / Sep-17

अ�ूबर / Oct-17

नव�र / Nov-17

िदस�र / Dec-17

जनवरी / Jan-18

फरवरी / Feb-18

माच� / Mar-18

% o

f tim

e

Month

वषर् 2016-17 म� दिक्षण क्षे� क� ��ेन्सी / Southern Grid Frequency during 2016-17

> 50.2 Hz

50.05 &< 50.2 Hz

50.0 &< 50.05 Hz

49.9 &< 50.0 Hz

49.7 &< 49.9 Hz

49.5 &< 49.7 Hz

< 49.5 Hz

MAXIMUM DURING THE YEAR 50.32 Hz on

MINIMUM DURING THE YEAR 49.62 Hz on

AVERAGE DURING THE YEAR 49.98 Hz

21.05.2017 & 17.09.2017

23.09.2017 & 07.11.2017

2017-18 के दौरान दिक्षण क्षे� क� ��ेन्सी �परेखाFrequency Profile of Southern Region during 2017-18

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0.01 0.03 0.00 0.01 0.03 0.04 0.02 0.08 0.00 0.01 0.00 0.00

11.2

2

11.9

0

8.02

8.26

0.55

14.7

2

16.9

9

19.7

2

13.1

5

11.1

4

9.69

12.9

9

74.8

1

73.3

4

76.9

6

77.3

7

86.5

4

77.2

9

75.3

1

70.8

5

73.2

1

77.6

8

80.1

4

79.1

8

13.9

2

14.6

2

14.9

9

14.3

6

12.8

8 7.95

7.67

9.33

13.5

7

11.1

1

10.1

7

7.82

0.04 0.11 0.03 0.00 0.01 0.01 0.00 0.02 0.07 0.06 0.00 0.01

% o

f Tim

e

Month

> 50.2 Hz

50.05 &< 50.2 Hz

49.9 &< 50.05 Hz

49.7 &< 49.9 Hz

49.5 &< 49.7 Hz

< 49.5 Hz

वषर् 2017-18 के िलए दिक्षण क्षे�ीय �णािलय� का

Annual Load Factor (in percentage) of Southern Regional Systems for 2017-18

वा�षक लोड फैक्टर (�ितशत म�)

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

आं� �दशे Andhra Pradesh

कनार्टक Karnataka

केरल Kerala तिमल नाडु Tamil Nadu

तेलंगाना Telangana

पुदचुेरी Puducherry

दिक्षण क्षे� Southern Region

74.2

7

71.7

6

73.2

6

80.5

8

66.6

1

78.5

0

77.2

7

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ad F

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r (%

)

Annual Load Factor (%)

वषर् 2017-18 म� िव�ुत केन्�� के प्लांट लोड फैक्टरPlant Load Factor of Power Stations for 2017-18

आं� �देश / Andhra Pradesh

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

75.59

72.42 75.23

61.34

70.19

76.34

64.36

0.00

34.45

P.L.

F (%

)

2016-17 2017-18


कनार्टक / Karnataka

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.0075

.72 79

.68

67.34

15.45

0.00

69.64

85.27

36.46

13.48

7.11

0.00

P.L.

F (%

)

2016-17 2017-18


केरल / Kerala

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

Brahmapuram (Diesel) Kozhikode (Diesel) RGCCP (Kayamkulam)

0.90

17.7

7

0.49

0.08

0.17

0.13

P.L.

F (%

)

2016-17 2017-18


तिमल नाडु / Tamil Nadu

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

7.83

60.3

1

77.8

8

65.5

7

67.2

3

60.7

1

70.3

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69.4

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46.6

3

76.1

9

55.7

3

64.3

0

P.L.

F (%

)

2016-17 2017-18


तेलंगाना / Telangana

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

62.8

5

73.7

4 76.6

9

82.8

7

74.9

5

62.7

0

61.3

7

82.0

7

80.6

7

86.7

2

79.7

4

74.1

9

P.L.

F (%

)

2016-17 2017-18


केन्�ीय उत्पादन क�� / Central Generating Stations

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

86.0

4

86.8

8

82.3

3

79.4

7

0.00

85.8

3 90.

71

31.3

5

71.3

8

89.5

1

80.0

0 83.1

3

61.7

0

70.1

0

82.8

4 87.

32

65.7

8 68.6

3

54.3

3

79.6

7

88.2

6

45.8

9

61.7

9

98.8

9

96.5

6

77.2

0

49.7

6 54.

55

P.L.

F (%

)

2016-17 2017-18


Merchant Power Plants directly connected to ISTSआई.एस.टी.एस से जुड़े �ापारी िव�ुत संयं�

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00SE

PL

MEP

L

CEPL

SGPL

LAN

CO, S

tg-II

LAN

CO, S

tg-II

I A

LAN

CO, S

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I B

IL &

FS

TPCI

L

30.5

3

52.2

7

35.6

6

60.1

8

4.05

26.3

7

13.4

3

49.1

5

78.3

5

0.48

22.3

5

37.1

6

77.5

8

0.00

0.00

0.00

54.4

5

85.0

4

P.L.

F (%

)

2016-17 2017-18


राज्य� क� ि�ड से जुड़े �मुख आई .पी.पी.Major IPPs connected to State Grid

0.00

20.00

40.00

60.00

80.00

100.00

JSWEL, Bellary (SBU - 1&2) UPCL (Unit - 1&2)

58.61

74.92

53.27

58.8

P.L.

F (%

)

2016-17 2017-18

अध्याय

Chapters

CHAPTER I

SOUTHERN REGIONAL POWER COMMITTEE INTRODUCTION :

Southern Region comprises the five Southern States namely Andhra Pradesh,

Karnataka, Kerala, Tamil Nadu, Telangana and the Union Territory of Puducherry

encompassing an area of approximately 6,37,000 Square Kilometres, constituting about 20%

of the total area of India.

The Power Map of the Southern Region is given in Exhibit I. 1 MEMBERSHIP, FUNCTIONS AND ORGANISATIONAL SET UP

1.1 MEMBERSHIP OF SRPC :

Government of India, under the provision of Section 2, Subsection 55 of the

Electricity Act 2003 vide resolution F.No.23/1/2004-R&R dated 25th May, 2005,

amendment dated 29.11.2005, amendment dated 09.05.2008 and subsequent

amendment dated 21.12.2017 published in the Gazette of India has established the

Southern Regional Power Committee (SRPC) comprising of States of Andhra

Pradesh, Karnataka, Kerala, Tamil Nadu, Telangana and Union Territory of

Puducherry with the following Members :

i) Member (Grid Operations), Central Electricity Authority (CEA).

ii) One representative each of Central Generating Companies, Central

Transmission Utility (CTU), National Load Despatch Center (NLDC) and the

Southern Regional Load Despatch Center (SRLDC).

iii) From each of the State in the region, the State Generating Company,

Transmission Utility (STU), State Load Despatch Center (SLDC), one of the

State owned distribution companies as nominated by the State Governments

and one Distribution Company by alphabetical rotation out of the private

distribution companies functioning in the region.

iv) From each of the Union Territories in the region, a representative nominated

by the administration of the Union Territory concerned out of the entities

engaged in generation/transmission/distribution of electricity in the Union

Territory.

v) A representative each of every generating company (Other than Central

Generating Companies or State Government owned generating companies)

having more than 1000 MW installed capacity in the region.

vi) A representative of the generating companies having power plants in the

region (not covered in (ii) to (v) above) by alphabetical rotation.

vii) One member representing the electricity traders in the region by alphabetical

rotation, which has trading volume of more than 500 million units during the

previous financial year.

viii) A representative each of every Nodal Agency appointed by the Government

of India for co-ordinating cross-border power transactions with the countries

having electrical inter-connection with the region.

ix) Member Secretary, SRPC - Convener.

1.2 FUNCTIONS :

The following functions have been assigned to SRPC :

i) To undertake Regional Level Operation Analysis for improving Grid performance.

ii) To facilitate Inter-State/Inter-Regional transfer of power.

iii) To facilitate all functions of planning relating to Inter-State/Intra-State Transmission System with CTU/STU.

iv) To coordinate planning of maintenance of generating machines of various Generating Companies of the region including those of Inter-State Generating Companies supplying electricity to the Region on annual basis and also to undertake review of maintenance programme on monthly basis.

v) To undertake planning of outage of transmission system on monthly basis.

vi) To undertake operational Planning Studies including Protection Studies for stable operation of the Grid.

vii) To undertake planning for maintaining proper voltages through review of reactive compensation requirement through System Study Committee and monitoring of installed capacitors.

viii) To evolve consensus on all issues relating to economy and efficiency in the operation of power system in the region.

1.3 ORGANISATIONAL SET-UP OF SOUTHERN REGIONAL POWER COMMITTEE SECRETARIAT :

List of Officers in SRPC as on 31.03.2018 is at Annexure – I

(a) The organisational Chart of Southern Regional Power Committee Secretariat is given as follows :

(b) The organisational set up of Southern Regional Power Committee Secretariat

detailing the staff allocation during 2017 - 18 is given as follows :

MEMBER SECRETARY

Private Secretary

S.E. (Commercial & Operation) S.E. (Protection) S.E (Admin & Sys. Studies)

E.E (C) E.E (O)

A.E.E

DDO / A.E.E

Supporting office Staff

Supporting Office Staff

Hindi Officer

E.E (C) A.E.E

A.E

E.E (P)

A.E.E

A.E (Civil)

J.E (Civil)

Abbreviations : S.E = Superintending Engineer E.E = Executive Engineer A.E.E = Assistant Executive Engineer A.E = Assistant Engineer J.E = Junior Engineer

A.E

STAFF ALLOCATION

Name of the Post No. of Posts

Posts filled up as on

31-03-2018 A. Gazetted :

1. Member Secretary 1 1

2 Superintending Engineer / S.E (Admin) / Assistant Secretary

3 3

3 Executive Engineer 4 4+1

4 Asst.Executive Engineer 4 2

5 Assistant Engineer 2 2

6 Assistant Engineer (Civil ) 1 1+1

7 PS 1 -

B. Non- Gazetted : 1 Technical Officer 1 -

2 Junior Engineer (Civil ) 1 -

3 D’Man Gr – I 2 1

4 D’Man Gr - II 1 -

5 D’Man Gr - III 1 -

6 Assistant 1 -

7 Stenographer Gr – I 5 2

8 Stenographer Gr – II 1 1

9 Hindi Translator 1 1

10 UDC 1 1

11 Store Keeper 1 -

12 LDC 4 -

13 Driver 2 -

14 Peon (MTS) 6 5

15 Chowkidar (MTS) 2 1

16 Mech. Plumber 1 -

17 Helper (MTS) 1 -

TOTAL 48 25+2

1.4 FINANCIAL PARTICULARS :

The actual expenditure incurred by the SRPC Secretariat during the financial

year 2017-18 is as follows :

SRPC (Non-Plan) : Major Head - 2801 Expenditure : `

Sl Head Head of Account Cumulative Total upto 31st March

[ Regional Coordination – 2801.01.04 ]

1 07.01.01 Salaries [SAL] 1,70,74,248

2 07.01.03 Over Time Allowance [OTA] 2,100

3 07.01.06 Medical Expenses [MED] 64,327

4 07.01.11 Domestic Travel Expenses [DTE] 7,99,976

5 07.01.13 Office Expenses [OE] 8,99,897

6 07.01.20 Administrative Expenses 99,789

7 07.01.27 Minor Works 17,17,540

TOTAL 2,06,57,877

[ Load Despatching Station – 2801.01.07 ]

1 07.01.01 Salaries [SAL] 1,11,29,897

2 07.01.03 Over Time Allowance [OTA] 2,800

3 07.01.06 Medical Expenses [MED] 20,998

4 07.01.11 Domestic Travel Expenses [DTE] 7,99,916

5 07.01.13 Office Expenses [OE] 27,99,857

6 07.01.20 Administrative Expenses 99,922

7 07.01.26 Advertisement & Publicity 3,292

8 07.01.50 Other Charges 4,99,560

TOTAL 1,53,56,242

[ Minor Works - 2801.01.17.27 ] Strengthening of RPCs Nil

CHAPTER II

REGIONAL GRID PERFORMANCE

2.1 POWER SUPPLY POSITION :

The Registered Maximum Peak Demand of the Southern Regional Grid

during the year 2017-18 was 48,687 MW indicating an increase of 5,167 MW over

the previous year. The Unrestricted Maximum Demand was 48,862 MW. The

overall Demand Surplus/Shortage in the Region was of the order of -0.18 % to 2.52

% during the year 2017-18. The maximum monthly Demand Shortages / Surplus

during 2017-18 were of the order of 0.11 % to 0.88 % in Andhra Pradesh, -0.02 % to

0.51 % in Karnataka State, -0.14 % to 5.86 % in Kerala, 0.04 % to 0.42 % in Tamil

Nadu, 0.09 % to 0.30 % in Telangana and -0.27 % to 6.15 % in Puducherry. The

constituent wise details of monthly load pattern viz. Registered Peak Demand,

Unrestricted Demand and Capacity Shortages are given in Annexure - II.

The maximum monthly gross average Energy Consumption of Southern

Region was 1035 MUs/day during the month of March 2018. The Total Gross Energy

Consumption of the Southern Region for the year 2017-18 was 3,26,417 MUs at an

average of around 895 MUs/day, which was 3.08% more than that of previous year.

The Monthly Regional Energy Surplus varied from 0.01 % to 0.87 %. The Energy

Surplus were of the order of 0.01 % to 0.86 % in Andhra Pradesh, 0.01 % to 1.05 %

in Karnataka, 0.01 % to 1.13 % in Kerala, 0.01 % to 0.93 % in Tamil Nadu, 0.01 % to

0.67% in Telangana and 0.01 % to 0.96 % in Puducherry. The constituent wise details

of Monthly Gross Energy Consumption, Unrestricted Energy Requirement, Energy

Shortages and Month-wise Average Energy Consumption/day are given in Annexure

- III.

Load regulations were effected by the States in varying measures. Details of

regulatory measures in force in Southern Region during 2017-18 are given in

Annexure-V.

2.2 SOUTHERN REGION INSTALLED CAPACITY :

The Installed Capacity of Power Plants in Southern Region at the end of

financial year 2017-18 was 1,02,516 MW (Source : CEA) with a net increase of 11.66

% over that of last year Installed Capacity of 91,808 MW. The total Installed

Capacity comprises Hydro : 11,808 MW (11.52 %), Thermal+Gas+Diesel : 53,017

(51.72 %) Nuclear : 3,320 MW (3.24%) and (Wind + R.E.S) : 34,369 MW (33.52 %).

The ‘Hydro – Thermal’ and ‘RE – Total Installed Capacity in SR’ Ratio was 18 : 82

and 34 : 66 respectively as on 31.03.2018.

The details of Generating Units commissioned during the year 2017-18 are

given in Annexure-XV.

The State-wise Installed Generation Capacity as on 31.03.2018 in the

Southern Region (As reported by CEA) are given in Annexure - VI. The details of

Installed Capacity during the period 2013-14 to 2017-18 in respect of Southern

Region are given in Annexure - VII. The growth of Installed Capacity of Southern

Regional System during the year 2013-14 to 2017-18 is given in Exhibit - II.

2.3 MAXIMUM DEMAND :

Southern Region Maximum Demand recorded during 2017-18 (in the month

of March 2018) was 48,687 MW as compared to 43,520 MW in the previous year

indicating an increase of 5,167 MW. The registered System Peak Demands,

Unrestricted Demand and registered Minimum Demand for each constituent of the

Region during the year 2017 - 18 are given below :

State Registered Peak Demand

Max. Unrestricted

Demand

Registered Minimum Demand

Andhra Pradesh 9324 (16.03.2018) 9334 (Mar-18) 4535 (06.12.2017)

Karnataka 11135 (28.03.2018) 11190 (Mar-18) 3746 (15.10.2017)

Kerala 3884 (27.03.2018) 3906 (Mar-18) 1599 (18.09.2017)

Tamil Nadu 15230 (19.04.2017) 15256 (Apr-17) 6848 (06.11.2017)

Telangana 10635 (08.03.2018) 10649 (Mar-18) 3380 (21.05.2017)

Puducherry 387 (08.04.2017) 390 (Aug-17) 121 (10.05.2017)

SR 48687 (29.03.2018) 48862 (Mar-18) 25447 (18.09.2017)

The details of monthly registered Peak Demand of Constituent States of

Southern Region, Unrestricted Demand and the monthly aggregate Peak Demand as

well as monthly Simultaneous Peak Demand of the Region (Gross & Ex-Bus MW)

during the year 2017-18 are furnished at Annexure - II. Also the details of the

monthly registered Minimum Demand of the Constituent States of the Southern

Region and the Demand Shortages are given in Annexure - II. The growth of Peak

Demand in Southern Regional States and SR during the year 2013-14 to 2017-18 is

shown in Exhibit - III.

Month-wise diversity factor in respect of Southern Region varied from 1.038

to 1.082 during the year 2017-18 and is indicated in Annexure - II.

Annual Load Duration Curve of Southern Region is shown in Exhibit - IV.

Typical load curves for a working day (Regional Peak Demand day) and Regional

Minimum Demand day for the Region and the States are shown in Exhibit - V and

Exhibit - VI respectively.

2.4 ENERGY GENERATION & CONSUMPTION :

The Generation Statistics of Power Stations in the Southern Region during the

year 2017-18 are given at Annexure-VI. Also the Performance Statistics of Power

Stations in the region during the year 2017-18 are given at Annexure - VIII. The

quantum of Hydro, Thermal+Gas+Diesel, Nuclear, State Wind Mill, Solar (State /

Centre), Private Wind Mill, Private Solar & IPPs Energy Generation in the Region

during 2017-18 was 19,889 MU (6.52 %), 1,93,474 MU (63.46 %), 19,228 MU (6.31

%), 80 MU (0.03 %), 94 MU (0.03%), 26,749 MU (8.77%), 13,303 MU (4.36%) &

32,070 MU (10.52 %) respectively. Break-up of Energy Generation in 2016-17 &

2017-18 are presented as follows :-

T

Type 2016-17 (MU) 2017-18 (MU)

% Increase (+) % Decrease (-)

Hydro 17,276 19,889 + 15.11 % Thermal + Gas + Diesel 1,98,163 1,93,474 - 02.37 % Nuclear 18,289 19,228 + 05.13 % Wind (State / Centre) 16.03 80 + 400.39 % Solar (State / Centre) 442 94 - 78.73 % Wind (Private) 21,604 26,749 + 23.82 % Solar (Private) 5,208 13,303 + 155.44% Other IPPs 63,336 32,070 - 49.37 % Total 3,24,334 3,04,884 - 06.00 %

There was an deccrease of - 06.00 % in Total Energy Generation in 2017-18

over the previous year. State-wise Generation and Consumption data for the year

2017-18 is given in Annexure - X. The growth of generation of the State Systems

and Regional Grid is represented in Exhibit-VII, VIII & IX.

The details of highest ever Energy Consumption met in a day by Constituents

of Southern Region, till 31st March, 2018 were as follows :

Andhra Pradesh : 185.80 MU on 29.03.2018

Karnataka : 241.20 MU on 28.03.2018

Kerala : 80.49 MU on 29.04.2016

Tamil Nadu : 346.40 MU on 29.03.2018

Telangana : 228.10 MU on 23.03.2018

Puducherry : 7.98 MU on 13.05.2016

Southern Region : 1080.00 MU on 29.03.2018

2.5 SYSTEM FREQUENCY :

The monthly average frequency of the Southern Regional Grid varied between

49.97 Hz and 50.00 Hz during the year 2017-18 as against 49.98 Hz and 50.01 Hz

during 2016-17. The Grid operated within the IEGC range (49.90 Hz to 50.05 Hz

w.e.f. 17.02.2014) for 76.88 % of the time, which is higher than that of last year

2016-17, i.e. 72.52 %.

* IEGC Fr* * Details of month-wise frequency profile during the year 2017-18 are given in Annexure - X.

System Frequency 2015-16 2016-17 2017-18 Below 49.0 Hz 00.00 00.00 00.00 Between 49.0 Hz and 49.5 Hz 00.00 00.00 00.00 Between 49.5 Hz and 49.7 Hz 00.21 00.02 00.02 Between 49.7 Hz and 49.9 Hz 14.88 08.85 11.52 Between 49.9 Hz and 50.0 Hz 41.89 44.27 50.84 Between 50 Hz and 50.05 Hz 24.38 28.25 26.04 Between 50.05 Hz and 50.2 Hz 18.25 18.51 11.54 Above 50.2 Hz 00.40 00.11 00.03 Within IEGC Range (49.9 Hz to 50.05 Hz w.e.f. 17.02.2014) 66.27 72.52 76.88

Average Frequency (Hz) 49.98 50.00 49.98

2.6 VOLTAGE PROFILE :

The voltage levels at the major 765 and 400 kV Substations as given in

Annexure - XXII were generally satisfactory for most of the time. At few sub-

stations, high voltages prevailed for considerable period of time. The details of

Capacitor Installations by the Constituents during the year 2017-18 are given in

Annexure-XXI. However, Low Voltage conditions were also experienced at a few

400 kV nodes and there was no low voltage condition at 765 kV nodes.

2.7 PLANT LOAD FACTORS :

The Average Plant Load Factors of Thermal Power Stations in the Southern

Region as a whole and for the Constituent States for the year 2017-18 as well as for

the previous years 2014-15, 2015-16 & 2016-17 are indicated as follows. Details are

given in Annexure - VIII. The details of outages of Power Stations are given in

Annexure - IX.

Average Plant Load Factors of Thermal Power Stations

Constituent System 2014-15 2015-16 2016-17 2017-18

Andhra Pradesh 67.39 61.84 69.80 58.12 Telangana 80.31 73.17 69.64 74.72 Karnataka 73.02 73.15 59.77 36.05 Kerala 10.11 10.72 3.11 0.13 Tamil Nadu 67.07 69.32 62.06 60.43 Ramagundam STPS 89.76 88.67 86.04 82.84 Talcher St-II 92.53 91.65 86.88 87.32 NLC II 86.44 81.96 85.83 79.67 NLC- TS I Expansion 92.00 88.59 90.71 88.26 NLC- TS II Expansion --- 19.39 31.35 45.89 NTPL, Tuticorin --- 54.25 71.38 61.79 Simhadri Stage – I 88.25 82.03 82.33 65.78 Simhadri Stage – II 83.28 82.70 79.47 68.63 RGCCP 26.00 04.52 0.49 0.13 Kudgi, NTPC Stage 1 --- --- --- 54.33 Vallur (NTECL) 43.75 58.53 70.10 54.55

2.8 SYSTEM LOAD FACTORS :

The annual Load Factors of the Southern Region and Constituent Systems

during 2017-18 and the previous years 2013-14, 2014-15, 2015-16 & 2016-17 are

indicated below :

T

h

e

Load Factor of the Constituent Systems is given in Annexure - IV.

2.9 INTERCONNECTED OPERATION OF THE GRID :

Power Systems of the Constituent States of Southern Region viz, Andhra

Pradesh, Karnataka, Kerala, Tamil Nadu, Telangana and Puducherry operated in

parallel during the year. The details of inter-state & inter-regional lines and the

duration for which major tie lines were open during the year 2017-18 are given in

Annexure - XI.

2.10 OPERATION WITH NEIGHBOURING STATES / REGIONS :

Southern Region had Energy Exchanges of Power with Constituents of other

Regions, Deviation (UI) Power, Bilateral Exchanges and availing of shares from ER

& NR ISG Stations and with all the other regions through the back-to-back HVDC

Stations at Chandrapur (via Ramagundam-Chandrapur lines), Gazuwaka (via

Jeypore-Gazuwaka lines), Talcher Interconnecting point, 765 kV (charged at 400 kV)

Kudgi – Kolhapur Lines, 765 kV Wardha – Nizamabad, 765 kV Angul - Srikakulam

and 765 kV Raichur – Sholapur Line (PGCIL & RSTCL). Talcher - Kolar HVDC

Constituent System 2013-14 2014-15 2015-16 2016-17 2017-18

Andhra Pradesh 77

82 78 78 74 Telangana 81 83 74 67 Karnataka 72 72 73 69 72 Kerala 67 70 68 80 73 Tamil Nadu 80 78 78 66 81 Puducherry 80 78 79 79 79 Southern Region 82 84 81 82 77

link is an Evacuation Scheme for Talcher Stage II Station, dedicated for Southern

Region located in Eastern Region.

2.11 ENERGY EXCHANGES :

The constituent wise details of Entitlements and Schedules from ISGSs in SR

and NTPC Stations in ER, including Bilateral Exchanges and Actual Drawals from

the Grid including losses, for the year 2017-18 are given as follows :

States Entitlement from Grid

(MU)

Total Schedule from Grid

(MU)

Net Schedule from Grid

(MU)

Actual Drawal (MU)

Andhra Pradesh 14,638 12,129 16,711 16,897 Karnataka 22,686 20,469 27,364 27,284 Kerala 10,905 10,556 18,492 19,010 Tamil Nadu 33,008 28,309 50,722 51,210 Telangana 14,190 11,062 27,929 27,367 Puducherry 3,067 2,720 2,779 2,661

Note : Entitlement, Schedule & Actual Figures are at Generator Periphery. The month wise

details of the same are furnished in Annexure-XII.

The actual Inter Regional Energy Exchanges during the year 2017-18 are given below

From To MU

ER SR 10,121

SR ER 92

WR SR 20,218

SR WR 203

The month wise details are given in Annexure - XII. The details of Inter /

Intra Regional Scheduled Bilateral Exchanges are given in Annexure - XII, along

with Ex-bus Schedules of beneficiaries from Inter State Generating Stations.

The details of allocation of shares to the various beneficiaries of Southern

Region from ISG Stations located in Southern Region as on 31st March 2018 are

given in Annexure - XIII.

2.12 RESERVOIR LEVELS :

Salient features viz. Month-wise levels recorded, live storage and inflows in

Major Hydel Reservoirs in the Southern Region during 2017-18 are given in

Annexure - XIV and Exhibit - X.

2.13 PROGRESS OF GENERATION SCHEMES :

The progress of Generation Schemes under construction in the Region as on

31.03.2018 is given in Annexure - XVI.

2.14 PROGRESS OF TRANSMISSION LINES / SUBSTATIONS UNDER

CONSTRUCTION :

(a) The details of 765 kV, 400 KV and 220/230 kV Transmission Lines

commissioned during the year 2017-18 are given in Annexure - XIX.

(b) The details of progress of construction of 765 kV, 400 KV and 220/230 kV

Transmission Lines as on 31.03.2018 are given in Annexure - XX.

(c) The details of 765 KV, 400 KV & 220/230 kV Sub-Stations commissioned

during the year 2017-18 are given in Annexure - XVII.

(d) The details of progress of construction of 765 KV, 400 & 220/230 kV Sub-

Stations as on 31.03.2018 are given in Annexure - XVIII.

CHAPTER III

GRID PROTECTION & SYSTEM STUDIES

3.1 GRID DISTURBANCES AND PROTECTION RELATED ACTIVITIES :

Categorisation of Grid Incidents and Grid Disturbances :

Central Electricity Authority has issued Grid Standard, which classifies Grid

Incidents as GI-I, GI-2 & Grid Disturbances from GD-1 to GD-5 in the increasing

Order of Severity.

Categorisation of Grid Incidents as per Regulation 11 (1) of IEGC:

Category GI-1 : Tripping of one or more Power System Elements of the Grid

like a Generator, Transmission Line, Transformer, Shunt

Reactor, Series Capacitor and Static VAR Compensator, which

requires re-scheduling of generation or load, without total loss

of supply at a sub-station or loss of integrity of the Grid at

220 kV;

Category GI-2 : Tripping of one or more Power System Elements of the Grid

like a Generator, Transmission Line, Transformer, Shunt

Reactor, Series Capacitor and Static VAR Compensator, which

requires re-scheduling of generation or load, without total loss

of supply at a sub-station or loss of integrity of the Grid at

400 kV and above;

Categorisation of Grid Disturbances as per Regulation 11 (2) of IEGC:

Category GD-1 : When less than 10 % of the antecedent generation or load in a

regional grid is lost;

Category GD-2 : When 10 % to less than 20 % of the antecedent generation or

load in a regional grid is lost;





Category GD-5 : When 40 % or more of the antecedent generation or load in a

regional grid is lost.

The details of Grid Disturbances, which occurred in the Southern Region have

been enclosed as "Annexure XXIV - GD 1" and the details of Grid Incidents, which

occurred in the Southern Region have been enclosed as "Annexure XXIV - GI

1&2".

3.2 FUNCTIONS OF PROTECTION COORDINATION SUB-COMMITTEE (PCSC) OF SRPC :

The major functions of the Protection Coordination Sub-Committee (PCSC) are as

follows :

a) Conducting of regular PCSC meetings to analyze the Grid Disturbances, Grid

Incidents & other trippings that took place in the Southern Region and to

suggest suitable measures to avoid their reoccurrence

b) Conducting of constituent-specific / issue-specific special meetings and

Protection System Analysis Group (PSAG) meetings to provide concrete

solutions to the protection issues concerning SR-Constituents

c) Coordination of settings of Protective Relays in the Regional System to

maintain the security of the Grid

d) Conduction of periodical Protection Audit for various Stations in the southern

region

e) To suggest, discuss and implement Special Protection Schemes (SPS’s) to take

care of major loss of import / generation / tripping of lines so as to ensure

security of the Grid

f) Periodical review of under frequency load shedding schemes, df/dt load

shedding schemes and other protection schemes adopted in the Grid

g) Review of implementation of protection-specific recommendations made by

the Inquiry Committee of the Grid Disturbances in the Southern Region

h) Monitoring of implementation of recommendations given as part of Third

Party Protection Audit (TPPA) for certain Stations in the Southern Region

i) Periodic review of Over-Voltage Grading of transmission lines of the Southern

Region

j) Periodic review of Islanding Schemes of the Southern Region

3.3 DETAILS OF PROCEEDINGS OF PROTECTION COORDINATION SUB-

COMMITTEE (PCSC) MEETINGS :

The Grid Occurrences and Minor Trippings that took place in the constituent

systems were discussed in detail in the Protection Coordination Sub-Committee

(PCSC) meetings. Necessary guidelines / remedial measures, suggested by the

Protection committee were taken up for implementation by the Constituents to avoid

its reoccurrence.

During 2017-18, 10 PCSC meetings (PCSC-63 to PCSC-72) were conducted,

as shown in Annexure – XXIII. The following issues were deliberated / implemented

by the constituents in the meeting :

a) In-depth analysis of the Grid Occurrences that took place in the southern

region during 2017-18. The recommendations / remedial measures, suggested

by the PCSC forum had been taken up for implementation by the concerned

Constituents to avoid their recurrence.

b) As per the directions of MOP/ CEA, the remedial measures taken for the

critical tripping events in the Southern Region were discussed, compiled and

sent to CEA.

c) As per the MoP direction given in pursuant to recommendations of the

Enquiry Committee (NEW grid disturbance on 30th & 31st July, 2012), RPC’s

are required to obtain from their respective Constituents the monthly

certificate for healthiness of batteries, installed at 220 KV and above voltage

level Substations (for power supply to Relays, RTUs and PLCC equipment)

and furnish the same to CEA / MoP. The status reported upon by SR-

Constituents was discussed during PCSC meetings.

d) There are four Islanding Schemes in Southern Region that are in operation,

and implemented with feeder tripping frequency of 47.9 Hz with instantaneous

operation. Their brief details are as given below :

(i) Hyderabad Islanding Scheme with anticipated load Generation as 2960

MW

(ii) Chennai Islanding Scheme with anticipated load Generation as 3640 MW

(iii)Neyveli Islanding Scheme with anticipated load Generation as 4356 MW

(iv) Koodankulam Islanding Scheme with anticipated load Generation as 3680

MW.

e) In view of several network changes (additions / deletions / reconfiguration of

Transmission & Generation Elements) in SR, the existing Over Voltage

Gradings for all 400 kV & 765 kV transmission lines had been reviewed,

finalized and posted on SRPC website after incorporating necessary changes.

All Constituents had been directed to implement the same.

f) Requirement of DTPC’s for various Special Protection Schemes was

reviewed. PGCIL (SR-II) was asked to dispatch DTPC’s to the identified

locations in Karnataka, Kerala, Tamil Nadu, and Puducherry.

g) Auto-Reclosure implementation on all 220 kV & above voltage level

transmission lines of Southern Region in accordance with Regulation 43 (4)

(c) of CEA Technical Standards for Construction of Electrical Plants and

Electric Lines, 2010 was pursued with all SR-Constituents. In this regard, the

necessary logics to be implemented under various scenarios were also detailed

and their implementation was closely monitored.

h) Implementation of Line Differential Protection (LDP) as both Main-I & Main-

II for upcoming transmission lines and in Nellore & Simhadri Complexes as

proposed in earlier PCSC, PSAG meetings was reviewed for compliance.

i) The suggestions & recommendations brought out in the minutes of the

meeting of the Standing Committee of Experts to investigate the failure of 220

kV and above voltage class substation equipment, in respect of reported

failures during September, 2015 and December, 2016 held on 01.03.2016 were

discussed for the benefit of SR-Constituents and suitable action.

j) The existing Special Protection Scheme at UPCL plant at Udupi was reviewed

in view of the changed network conditions, and the modified scheme was put

into operation.

k) TSTRANSCO’s proposals for Special Protection Schemes (SPS’s) at 220 kV

Sivarampally and 220 kV Gachibowli substations were discussed and finalized

for implementation.

l) In pursuance with the decision taken in 26th SRPC meeting, steps had been

taken to implement Protection Suite (Protection Management System) that

comprises web-based management software and protection setting calculation

tool in southern region through PSDF funding. The project was awarded

through competitive bidding to M/s PRDC Pvt. Ltd. (PRDC) on 09.08.2017.

The project execution was monitored through 11 identified milestones, of

which the following had been accomplished till 31.03.2018 :

• Submission of High level Design Document for implementation of web based protection management system & protection setting calculation tool for Southern Region to SRPC

• Delivery of 35 No of base license of protection calculation engine along with laptops

• Delivery of associated servers, Installation and deployment of application and database software along with standard operating System

• Delivery of web based database management for Southern Region. • Building the network data for operational load flow and fault

calculation • Completion of Training program on the desktop based protection

setting calculation software

m) The Protocol on implementing & using Protection Management System

(PMS) in Southern Region aimed at throwing light on the methodologies/

systems adopted in the project, and giving an integrated view of how they

work in tandem in accomplishing the professed objectives of the project was

discussed and finalized. The same was also issued to all SR-Constituents for

necessary action.

n) Formats to be used by SR Constituents for furnishing First Information Report

(FIR) and Tripping Report (TR) in accordance with Regulation 5.9.6 (c) of

CERC (Indian Electricity Grid Code) Regulations, 2010 were devised and

intimated to SR Constituents for furnishing tripping details in this format.

o) Implementation of pending TPPA Protection Audit Recommendations (PAR)

of SR-Constituents was regularly reviewed. Implementation of pending

Protection Audit Recommendations (PAR) of SR Constituents was also

regularly reviewed.

p) The nomenclature to be followed by the Constituents in naming the various

files (FIR, DR, EL, TR) corresponding to a tripping incident was illustrated to

SR Constituents for beneficial adoption.

q) Network configuration changes that took place in SR during 2017-18 were

discussed.

r) Instances of SPS operations that took place in SR during 2017 – 18 had been

discussed.

3.4 DETAILS OF POWER SYSTEM ANALYSIS GROUP (PSAG) MEETINGS :

During 2017-18, one PSAG meeting (PSAG-18) with issues specific to 400/

220 kV Hoody Substation of KPTCL was conducted. Major issues deliberated in the

meeting, held during July, 2017 are as follows :

Events Analysis & Compliance of Protection Audit Recommendations

Status-check of various protection settings & practices adopted at 400/ 220/ 66

kV Hoody SS

Implementation of Special Protection Scheme (SPS) to deal with the

overloading issues that result from the contingency of tripping of one of the

two ICT’s operatig in parallel

Ensuring reliable supply to Metro-Rail services

Action plan on the proposed system strengthening measures in Bengaluru area

3.5 DETAILS OF PROTECTION-SPECIFIC SPECIAL MEETINGS :

During 2017-18, one Protection related Special Meeting (SPM) with issues

specific to TPCIL was conducted. Major issues deliberated during June, 2017 are as

follows :

Remarks of the audit team that conducted protection audit of 765/ 400 kV

Nellore PS of PGCIL (SR-I)

Identification of probable fault locations :

Measures taken with respect to reducing frequency of faults on transmission lines in Chennai metro area

Measures taken with respect to reducing frequency of faults on 400 kV Krishnapatnam (SDSTPS) – Nellore-AP (Manubolu) D/C line

Status-Check of various protection settings adopted at TPCIL

3.6 DETAILS OF GRID STUDY COMMITTEE MEETINGS :

In accordance with MoP order dated 16.07.2014, Package-A consisting of two

Tasks to M/s Tractebel Engineering (TE) and Package-B consisting of 6 Tasks to M/s

Powertech Labs Inc (PLI) were awarded as follows :

Package A by M/s TE :

Task I : To study and review the status of implementation of recommendations of the

Enquiry Committee

Task II : To conduct on site Protection audit check of the works already carried out,

for 10% (76 nos.) of 762 Substations across the country after grid failure of

July 2012

Package B by M/s PLI :

Task I : Examination and Recommendation of Methodology for Optimum

Calculation of Transfer Capability (TTC/ATC/TRM) in the Planning and

the Operational Horizons

Task II : Caulation of Transfer Capability (TTC/ATC/TRM) for entire country

Task III : Gdelines for developing and implementing System Protection Scheme

(SPS) and Islanding schemes and review existing schemes

Task IV : Operational Planning and Long term planning for secure and efficient

operation of the Grid

Task V : Suitable suggestions in the Regulatory framework to ensure Secure and

efficient Grid operation

Task VI : To review the tuning of all Power Electronic Devices (including FACTS

and HVDC) and suggest retuning of setting of these devices, as per report

of Task Force

The two final reports under Package A, submitted by TE and the first three

final reports under Package B, submitted by PLI were accepted by Grid Study

Committee (GSC) in their fourth meeting held on 16.01.2018. A three day training

programme was also imparted by PLI during February, 2018 for SR-Constituents on

the first three Tasks of Package-B.

3.7 RELIABILITY STANDARDS FOR PROTECTION SYSTEM : Hon'ble CERC in their Order dated 05.08.2015 w.r.t. Petition No.

009/SM/2015 in the matter of following up actions on the recommendations of CAC

Sub-Committee on Congestion in Transmission directed National Reliability Council

for Electricity (NRCE) to prepare Standards for Protection System. NRCE in their 6th

meeting held on 17th March 2016 had formed a Subgroup for Preparation of the

Reliability Standards for Protection system and Communication system for Indian

Power System.

Sub-Group after convening five meetings had brought out a Draft Report in

October, 2017 on Reliability Standards for Protection System for Indian Power

System. Protection Sub-Committee (PSC) representatives of SRPC had participated in

all the meetings of the Sub-Group, and contributed to development of procedures

detailed under above topics that deal with co-ordination & review of Relay settings,

and ensuring healthiness of protection systems in place. Presently, the said draft is

under finalization by National Power Committee (NPC) for submission to Hon’ble

CERC.

3.8 PROTECTION AUDIT: With respect to Hon’ble CERC vide their Order dated 27.04.2015 in respect of

APTRANSCO Petition No.95/MP/2015 dated 09.04.2015, the following Substations

had been audited to ascertain the status of various protection systems in place :

SL No

Name of the Substation audited

Date of Protection Audit

Audit Team Composition

1 Both sides of 765/ 400 kV Nellore Pooling Station (NPS) of PGCIL (SRTS-I)

19-20th June, 2017 SRPC, SRLDC & APTRANSCO

2 Both sides of 230/ 110 kV Villianur SS of PED

10th July, 2017 SRPC, SRLDC & NLCIL

3 Both sides of 230/ 110 kV Bahour SS of PED

11th July, 2017 SRPC, SRLDC & NLCIL

4 220kV Sharavathy Generating Station of KPCL

30-31st October, 2017

SRPC, SRLDC & KSEBL

5 Both sides of 400/ 220 kV Kozhikode SS of PGCIL (SR-II)

21-22nd December, 2017

SRPC, SRLDC & KPTCL

6 Both sides of 765/ 400 kV Maheshwaram SS of PGCIL (SR-I)

08-09th February, 2018

SRPC, SRLDC & TSTRANSCO

The general remarks on which action may be taken were intimated to

concerned Consituents for compliance. Bi-monthly reports on the details of the audit

undertaken were also furnished to Hon’ble CERC.

3.9 IMPLEMENTATION OF PROTECTION AUDIT RECOMMNEDATINOS :

With reference to the petitions filed by KSEB (88/MP/2016) and KPTCL

(135/MP/2016) for seeking further time-extension for completing their respective

Protection Audit Recommendations (PAR), the final Order of Hon’ble CERC

disposing of petitions was issued on 15.12.2016. In this Order, the Commission, apart

from granting last-chance time-extensions to various SR-Constituents, had also

directed SRPC to monitor the status of completion of PAR regularly in PCSC

meetings and submit bi-monthly report to the Commission confirming the completion

of Phase-I and Phase-II of PAR of the Constituents of Southern Region.

In this regard, based on the information furnished by various Constituents, a

summary table showing the compliance status of various SR-Constituents as on

14.02.2018 is given below :

SL No

Cons

titu

ent

Stipulated Completion Date

PAR (Ph-I & Ph-II)

Compliance (%)

Remarks PAR (Phase-I) Activities

PAR (Phase-II) Activities

1

APG

ENC

O

(Hyd

el)

31.12.2017 31.12.2017 66.66

Based on the status furnished, timeline for complying with the remaining pending recommendations (5 in no.) is 31.03.2018

2

APG

ENC

O

(The

rmal

)

30.07.2017 --- 83.33

Based on the status furnished, timeline for complying with the remaining pending recommendations (2 in no.) is 30.06.2018

3

APT

RAN

SCO

31.03.2017 --- 98.57

Based on the status furnished, the lone pending recommendation is expected to be completed by April, 2018

4

TSG

ENC

O

(Hyd

el)

31.03.2017 31.03.2017 91.18

Based on the status furnished, timeline for complying with the remaining pending recommendations (3 in no.) is June, 2018

SL No

Cons

titu

ent Stipulated Completion Date

PAR (Ph-I & Ph-II)

Compliance (%)

Remarks PAR (Phase-I) Activities

PAR (Phase-II) Activities

5

TSTR

AN

SCO

31.03.2017 31.03.2017 86.36

Based on the status furnished, timeline for complying with the remaining pending recommendations (12 in no.) is March, 2018

6

KPT

CL

31.05.2017 31.05.2017 61.97

Based on the status furnished, timeline for complying with the remaining pending recommendations (27 in no.) is March, 2018

7

TAN

GED

CO

31.12.2017 31.12.2017 75.00

Based on the status furnished, timeline for complying with the remaining pending recommendations (9 in No.) is June, 2018

8

TAN

TRA

NSC

O

31.12.2017 31.12.2017 54.54

Based on the status furnished, timeline for complying with the remaining pending recommendations (60 in no.) is December, 2018

9

KSE

BL

30.11.2016 31.12.2017 96.10

Based on the status furnished, timeline for complying with the remaining pending recommendations (3 in no.) is April, 2018

10

NPC

IL

(MA

PS)

31.01.2017 --- 88.89

Based on the status furnished, timeline for complying with the lone pending recommendation is September, 2018

All above SR-Constituents were requested to complete their respective

pending PAR. The IPP’s for whom there were pending PAR [viz., Spectrum PGL,

Konaseema GPL, APGPCL Vijjeswaram (Stage-I & Stage-II), & LANCO-Kondapalli

PL] are also requested to complete them at the earliest.

3.10 IMPLEMENTATION OF PROTECTION MANAGEMENT SYSTEM IN

SOUTHERN REGION :

In pursuance of the recommendations of Task Force on Power System

Analysis under Contingencies constituted in the aftermath of Grid Disturbances in

July, 2012, SRPC in their 26th meeting held on 20th December, 2014 at

Visakhapatnam, had approved a proposal to procure Protection Suite (Protection

Management System - PMS) that comprises Web-based Management Software and

Protection Setting Calculation Tool through PSDF funding.

Subsequently, steps had been taken to get the scheme approved from PSDF,

and Sanction Order in this regard had been received vide MoP letter no: 10/1/2014-

OM dated 02.01.2017. Based on this, tender for executing the Project, “Procurement

of Web-based Management Software and Protection Setting Calculation Tool for

Southern Region”, had been invited through open bidding process from qualified and

reputed bidders through SRPC tender notification dated 23rd March 2017. After

evaluation of the received bids (Technical & Financial), the project was awarded to

M/s PRDC Pvt. Ltd. (PRDC) on 09.08.2017. The execution period for the Project is

about 18 months from the date of placement of LoA (also called “Effective Date”),

and is followed by an Extended Technical Services period of 5 years.

As per LoA, it is proposed to monitor the project execution in terms of

achieving the following 11 (eleven) Milestones :

SL No

Description of Milestone/ Deliverables Time-line for achieving

Milestone

1 Submission of High level Design Document for implementation of web based protection management system & protection setting calculation tool for Southern Region to SRPC

1

2 Delivery of 35 No of base license of protection calculation engine along with laptops

2

3 Delivery of associated servers, Installation and deployment of application and database software along with standard operating System

2

4 Delivery of web based database management system software 2

5 Building the entire southern region Network Data for operational load flow and fault calculation

3

6 Completion of Training program on the desktop based protection setting calculation software

4

7 Site Acceptance Test (SAT) with one pilot state system 6 8 Real time interactive hardware and software at selected 400 kV

substation at central location for fault analysis and reporting 9

9 Building the entire southern region protection database and substation SLD preparation for protection study

16

10 Uploading all SR-Constituents Data along with SLDs and Go-Live 18

11 Extended Technical Services Additional 5 years

As on 31.03.2018, the Executing Agency had fully completed Milestones – 1

& 2 & 3 & 4 & 6 and partially completed Milestone-5; the activities relating to

Milestones – 5, 7, 8 & 9 were under progress.

3.11 DETAILS OF ISLANDING SCHEMES IMPLEMENTED IN THE SOUTHERN

REGION :

The basic idea of islanding scheme is to devise a defense mechanism as a final

stage remedial measure for power system defense plan in which a part of the system is

islanded from a disturbed grid so that if healthy, this subpart could survive in isolation

from rest of grid. Islanding should take place only when all other defense plan have

been allowed their full opportunity to bring back and maintain system integrity and

still the health of integrated system is on path of deterioration towards failure.

Basic motivation for devising an islanding scheme is that it helps us in saving

from total blackout during a major grid disturbance. A successfully survived island

also helps in quicker restoration of grid. However, it is necessary to ensure that

islanding schemes operate only as a final stage defense mechanism. For this we must

keep operational frequency band for pre-islanding defence mechanism and islanding

frequency band sufficiently apart. This frequency gap is necessary to take care of

continued fall of frequency during the interval between relay pick-up and breaker

opening. Similarly, a clear gap between frequency band of normal operation and

highest setting of U/F load shedding relays is also necessary.

In this regard, it may be noted that the following frequency bands have been

adopted for normal operation of the grid and triggering various frequency based pre-

islanding defense mechanisms :

Operating Frequency

Band

dF/dt (Stage-I)

dF/dt (Stage-II)

AUFR (Stage-I)

Frequency

AUFR (Stage-II)

Frequency

AUFR (Stage-III) Frequency

AUFR (Stage-IV) Frequency

49.9

0 –5

0.05

49.5 Hz & 0.2

Hz/sec fall of

frequency

49.3 Hz & 0.3 Hz/sec

fall of frequency

49.2 49.0 48.8 48.6

• In case of further frequency fall, the islanding is designed to take place at 47.9

Hz. The gap of 0.7 Hz before islanding will give sufficient time for the system

to regain its stability.

• The approved Islanding Schemes in Southern Region are non-adaptive in

nature; Islands are formed with anticipated Load Generation balance and with

tripping of pre-decided feeders at 47.9 Hz.

The details of the four functional Islanding Schemes of Sothern Region are as

follows :

(i). Hyderabad Islanding Scheme :

(a) Summary :

Generators Participating (Gp) 3700 MW

Anticipated Generation G (0.8 x Gp) 2960 MW (114 % of Ant. Load)

Loads Participating (Dp) 2916 MW

AUFR+ df/dt Load Relief (Dr) 30 MW Anticipated Load, D [0.9x(Dp-Dr)] 2597 MW

(b) Details of the Generators participating :

(ii). Chennai Islanding Scheme :

(a) Summary :

Generators Participating (Gp) 4550 MW

Anticipated Generation, G (0.8xGp) 3640 MW (114 % of Ant. Load)

Loads Participating (Dp) 3816 MW

AUFR+df/dt Load relief (Dr) 620 MW

Anticipated Load, D (Dp-Dr) 3196 MW

Sl. No Generator Entity

Installed Capacity (MW)

1 Ramagundam STPS 400 NTPC 2600

2 Kakateeya TPS 400 TSGENCO 1100

Generators Participating, Gp 3700

Anticipated Generation, G (0.8 x Gp) 2960


(iii). Neyveli Islanding Scheme :

(a) Summary: Generators Participating (Gp) 5470 MW

Anticipated Generation, G (0.8xGp) 4356MW (116.6 % of Ant. Load)

Loads Participating (Dp) 5725 MW AUFR+df/dt Load relief (Dr) 2000 MW Anticipated Load, D (Dp-Dr) 3752 MW


(



1 ETPS 230 TANGEDCO 100 2 MAPS 230 NPCIL (MAPS) 440 3 NCTPS-I 230 TANGEDCO 630 4 SURYADEV 230 IPP 150 5 OPG_ALM 230 IPP 340 6 KAMACHI 230 IPP 70 7 KAVERI 230 IPP 60 8 ARS 230 IPP 60 9 VALLUR TPS 400 NTECL 1500 10 NCTPS-II 400 TANGEDCO 1200

Generators Participating, Gp 4550

Anticipated Generation, G (0.8 x Gp) 3640



1 Kadamparai TANGEDCO 150 2 Kundah I - V TANGEDCO 150 3 Mettur PH TANGEDCO 100 4 STCMS IPP 250 5 NLC TS – I (230 kV) NLC 300 6 NLC TS – I (110 kV) NLC 300 7 PP Nalur IPP 330 8 PUSHP TANGEDCO 100 9 Kuttalam & Kovilkalappal

(connected to Tiruvarur-230) TANGEDCO 200

10 NLC TS-I EXP NLC 420 11 NLC TS – II NLC 1470 12 NLC TS-II EXP NLC 500 13 MTPS -3 TANGEDCO 600 14 ILFS IPP 600

Generators Participating, Gp 5470 Anticipated Generation, G (0.8 x Gp) 4356

iv). Koodankulam Islanding Scheme :

(a) Summary :

Generators Participating (Gp) 4600 MW Anticipated Generation, G (0.8XGp) 3680 MW

(121 % of Ant. Load) Loads Participating (Dp) 3838 MW

AUFR+df/dt Load relief (Dr) 800 MW Anticipated Load, D (Dp-Dr) 3038 MW


3.12 DETAILS OF PHASOR MEASURING UNITS (PMU’S) INSTALLED IN THE

SOUTHERN REGION :

There were 271 PMUs installed in the Southern Region as on 31.03.2018, out

of which, 6 PMUs were under SRLDC Pilot Project and 4 PMUs were NRLDC Pilot

Project and the other 3 were installed by manufacturers themselves.

PMU's under SRLDC Pilot PMU Project were installed at the following

Locations :

1. Ramagundam Generating Station 400 kV Bus (NTPC)

2. Vijayawada Sub- Station 400 kV Bus (POWER GRID)

3. Sriperumbudur (Chennai) Sub- Station 400 kV Bus (POWER GRID)

4. Somanahalli (Bangalore) Sub- Station 400 kV Bus (POWER GRID)

5. Thrissur Sub- Station 400 kV Bus (POWER GRID)

6. Narendra Substation 400 kV Bus (Through VSAT of KPTCL) (POWER

GRID)


Installed Capacity

(MW) 1 Periyar, Suruliyar & Kodayar

(connected to Kayathar - 230) TANGEDCO 200

2 Tuticorin TPS 230 TANGEDCO 1050 3 Valathur 230 TANGEDCO 160 4 IBPTL 230 IPP 250 5 Koodankulam NPP 400 NPCIL 1000 6 Tuticorin JV 400 NTPL 1000 7 CEPL (U-1) 400 IPP 600 8 Sabarigiri 220 KSEB 340 9 Kayamkulam 220 KSEB 0

Generators Participating, Gp 4600 Anticipated Generation, G (0.8 x Gp) 3680

PMU's were installed under NRLDC Pilot PMU Project, at the following Locations : 1. Kolar Sub- Station 400 kV Bus (POWER GRID)

2. Gooty Sub- Station 400 kV Bus (POWER GRID)

3. Gazuwaka Sub- Station 400 kV South Bus (POWER GRID)

4. Thirunelveli Sub- Station 400 kV Bus (POWER GRID)

The remaining 3 PMU’s were installed at the following locations by the manufacturers themselves : 1. Gajuwaka 400 kV Sub-Station East Bus (ABB)

2. 765 kV Raichur Sub-Station (Alstom)

3. 400 kV RTPS (Raichur) Sub-Station (ABB)

Additionally 258 No. of PMU’s are in operation as on 31.03.2018, the details of which have been enclosd at Annexure - XXVI.

3.13 SYSTEM STUDIES :

The System Studies Sub Committee in which all the members of SRPC are

represented, is entrusted with the tasks of carrying out studies for assessing quantum

of capacitor requirement in the region, operational load flow studies or any other

technical studies referred by the SRPC / TCC.

The Power Map of Southen Regional Grid showing all 765 kV, 400 kV and

220 kV lines including all the interstate / Inter Regional lines was periodically

updated.

3.14 DETAILS OF THE INTER-REGIONAL SPECIAL PROTECTION SCHEMES

(SPS’S) IMPLEMENTED IN THE SOUTHERN REGION :

The details of the Special Protection Schemes implemented in the Southern

Region are enclosed at Annexure – XXV.

3.15 MEETINGS OF PROTECTION CO-ORDINATION SUB COMMITTEE :

The Protection Co-ordination Sub-Committee Meetings of SRPC held during

the year 2016-17 have been listed in Annexure – XXIII.

CHAPTER IV

COMMERCIAL AND ENERGY ACCOUNTING ACTIVITIES

The Commercial Sub-Committee discussed all commercial related issues viz Energy

Accounting, schemes required for inclusion in the Bulk Power Supply Agreements,

requirement of Power from new projects, installation of Special Energy Meters and its cost

sharing, Metering Aspects, reviewing the payment towards UI / DSM Charges, treatment of

Transmission Losses, Commercial Declaration of Lines / Substation and Generating Units.

Commercial issues in Interstate and Inter Regional Exchange of Power, settlement of

payments among Constituents and other issues referred by the TCC / SRPC were also

discussed.

4.1 ENERGY ACCOUNTING UNDER AVAILABLITY BASED TARIFF (ABT) : Accounting of Energy for the Southern Regional Grid is carried out by SRPC

Secretariat regularly in line with CERC regulations / orders and decisions of SRPC.

The Energy Accounting involves preparation of Accounts under Deviation Settlement

Mechanism, Reactive Energy Charges Account, Regional Energy Account (REA),

Regional Transmission Account (RTA), Regional Transmission Deviation Account

(RTDA) and RRAS (Ancillary Services) Settlement Account based on the data,

provided by SRLDC.

4.1.1 Deviation Settlement Mechanism (DSM) Account: A statement of Charges for Deviations including Additional Charges for

Deviation levied under CERC (Deviation Settlement Mechanism and related matters)

Regulations 2014, as amended from time to time was prepared on weekly basis for

the seven day period ending on the penultimate Sunday mid-night and issued to all

Constituents by Tuesday.

The softcopy of files, with 15 minutes-time block-wise, basic and computed

data, were uploaded on SRPC website to enable downloading by the Regional

Entities.

4.1.2 Reactive Energy Charges Account :

A sta

वाषक रपोट - Kar · 2018-12-28 · ANNUAL REPORT BENGALURU ... VII Installed...

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