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REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION Page 1 of 68 ANNEXURE

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REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 1 of 68

ANNEXURE

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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Annexure I: Fault levels of major substation in NER

Bus

September'17 Off Peak September'17 Peak

3 ϕ Fault Current in kA 3 ϕ Fault MVA

3 ϕ Fault Current in

kA 3 ϕ Fault MVA

400 kV Substations

Azara (Mirza) 6.87 4760 6.90 4783

Balipara 7.82 5417 8.00 5541

BgTPP 14.35 9942 14.49 10042

BiswanthChariali 6.93 4798 7.10 4919

Bongaigaon 14.68 10173 14.84 10279

Byrnihat 6.69 4634 6.78 4699

Misa 6.63 4596 6.75 4674

Palatana 7.47 5174 7.48 5182

Ranganadi 4.52 3129 4.69 3246

Silchar 7.07 4899 7.11 4923

220 kV Substations

Agia 7.79 2969 7.81 2977

AGBPP (Kathalguri) 5.97 2276 5.98 2280

Azara (Mirza) 9.21 3509 9.24 3522

Balipara 8.82 3362 8.94 3405

Boko 5.88 2240 5.89 2245

BTPS 12.74 4854 12.79 4874

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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Byrnihat 9.99 3807 10.24 3903

Dimapur (PG) 4.73 1801 4.76 1815

Kopili 9.40 3581 9.48 3611

Langpi 3.35 1277 3.36 1279

Mariani (AS) 5.38 2051 5.40 2057

Mariani (PG) 3.70 1411 3.72 1417

Misa 13.52 5151 13.73 5231

Mokokchung(PG) 3.13 1194 3.15 1199

NTPS 4.46 1701 4.47 1703

Samaguri 10.74 4094 10.87 4141

Salakati 12.91 4921 12.97 4941

Sarusajai 5.85 2230 5.87 2238

Tinsukia 5.36 2041 5.36 2044

132 kV Substations

Agartala 10.45 2388 10.45 2389

AGTCCPP 9.63 2202 9.64 2203

Aizawl 2.73 623 2.73 624

Badarpur 10.68 2442 10.71 2449

Balipara 6.53 1493 6.57 1501

Dimapur (PG) 6.17 1410 6.24 1426

Doyang 3.61 825 3.64 831

Haflong 2.79 637 2.79 638

Imphal (PG) 4.73 1081 4.73 1083

Jiribam (PG) 4.55 1041 4.56 1043

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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Fault level at important Sub-Stations of NER

Khandong 7.67 1755 7.73 1768

Khlierihat (PG) 8.53 1951 8.65 1977

Kumarghat 6.08 1389 6.08 1390

Loktak 4.58 1047 4.58 1048

Monarchak 8.00 1829 8.00 1830

Nirjuli 4.50 1029 4.61 1055

Silchar 12.48 2854 12.52 2863

Surjamaninagar 9.43 2156 9.43 2157

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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Annexure II: List of Lines in North Eastern Region List 1: 400kV Line Details of North Eastern Region

SR. NO

. FROM TO UTILITY KM CKT

CONDUCTOR

1 BALIPARA MISA POWERGRID 95.4 1

ACSR MOOSE/AAC

SR

2 BALIPARA MISA POWERGRID 95.4 2

ACSR MOOSE/AAC

SR

3 BALIPARA

BISWANATH CHARIALI

POWERGRID 65 1 ACSR TWIN

MOOSE

4 BALIPARA

BISWANATH CHARIALI

POWERGRID 65 2 ACSR TWIN

MOOSE

5 BALIPARA

BISWANATH CHARIALI

POWERGRID 57 3 ACSR TWIN

MOOSE

6 BALIPARA

BISWANATH CHARIALI

POWERGRID 57 4 ACSR TWIN

MOOSE

7 RANGANADI

BISWANATH CHARIALI

POWERGRID 204 1

ACSR TWIN MOOSE

8 RANGANADI

BISWANATH CHARIALI

POWERGRID 204 2

ACSR TWIN MOOSE

9 BONGAIGAON

BALIPARA POWERGRID 289.

8 1

ACSR TWIN MOOSE

10 BONGAIGAON

BALIPARA POWERGRID 289.

8 2

ACSR TWIN MOOSE

11 BONGAIGAON

BALIPARA POWERGRID 305.

0 3

AAAC QUAD MOOSE

12 BONGAIGAON

BALIPARA POWERGRID 305.

0 4

AAAC QUAD MOOSE

13 BONGAIGAON

BTPS POWERGRID 3.1 1 TWIN

MOOSE

14 BONGAIGAON

BTPS POWERGRID 3.1 2 TWIN

MOOSE

15 BONGAIGAON

NEW SILIGURI

POWERGRID 218 1 ACSR TWIN

MOOSE

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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(BINAGURI)

16

BONGAIGAON

NEW SILIGURI (BINAGURI)

POWERGRID 218 2 ACSR TWIN

MOOSE

17 BONGAIGAON

ALIPURDUAR POWERGRID 106 1 AAAC QUAD

MOOSE

18 BONGAIGAON

ALIPURDUAR POWERGRID 106 2 AAAC QUAD

MOOSE

19 BYRNIHAT SILCHAR NETCL

217.14

1 ACSR TWIN

MOOSE

20 PALLATANA SILCHAR NETCL 246 1

ACSR TWIN MOOSE

21 PALLATANA SILCHAR NETCL 246 2

ACSR TWIN MOOSE

22 AZARA SILCHAR NETCL 264 1

ACSR TWIN MOOSE

23 AZARA BANGAIGAON NETCL 118 1

ACSR TWIN MOOSE

24 BYRNIHAT BANGAIGAON NETCL 167 1

ACSR TWIN MOOSE

List 2: 400kV line ( Charged at 220kV ) details of North Eastern Region SR

. NO

.

FROM TO UTILITY KM CKT CONDUCTOR

1 MARIANI KATHALGURI

POWERGRID 162.9 1 ACSR TWIN

MOOSE

2 MISA NEW MARIANI

POWERGRID 222.7 1 ACSR TWIN

MOOSE

3 MISA MARIANI POWERGRID 220.0 1 ACSR TWIN

MOOSE

4 NEW MARIANI

KATHALGURI

POWERGRID 160.5 1 ACSR TWIN

MOOSE

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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List 3: 400kV line (Charged at 132kV) in North Eastern Region

SR. NO

. FROM TO UTILITY KM CK

T CONDUCTOR

1 PALATANA SURJAMANINAGAR

POWERGRID 37 1 ACSR TWIN

MOOSE

2 SILCHAR IMPHAL POWERGRID 166.5 1 ACSR TWIN

MOOSE

3 SILCHAR IMPHAL POWERGRID 166.5 2 ACSR TWIN

MOOSE

4 SILCHAR PK-BARI POWERGRID 127.2 1 ACSR TWIN

MOOSE

5 SILCHAR PK-BARI POWERGRID 127.2 2 ACSR TWIN

MOOSE List 4 : 220 kV Line details of North Eastern Region SR

. NO

.

FROM TO UTILITY KM CKT CONDUCTOR

1 AGIA AZARA AEGCL 107 1 AAAC ZEBRA 2 AGIA BOKO AEGCL 70.0 1 AAAC ZEBRA 3 AGIA BTPS AEGCL 67.0 1 AAAC ZEBRA 4 AGIA BTPS AEGCL 67.0 2 AAAC ZEBRA 5 AZARA BOKO AEGCL 38 1 AAAC ZEBRA

6 AZARA

SARUSAJAI

AEGCL 24 1 AAAC ZEBRA

7 AZARA

SARUSAJAI

AEGCL 24 2 AAAC ZEBRA

8 BALIPARA SONABIL

AEGCL/POWERGRID

10 1 ACSR ZEBRA

9 SONABIL SAMAGURI AEGCL 56 1 ACSR ZEBRA 9 BONGAIGA

ON SALAKATI POWERGRID 5.4 1 SINGLE ZEBRA

10 DEOMALI

KATHALGURI

ARUNACHAL PRADESH

19.0 1 SINGLE ZEBRA

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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11 KATHALGU

RI TINSUKIA AEGCL 22.0 1

SINGLE ZEBRA

12 KATHALGURI

TINSUKIA AEGCL 22.0 2 SINGLE ZEBRA

13 MISA DIMAPUR POWERGRID

121.9

1 ACSR ZEBRA

14 MISA DIMAPUR POWERGRID

121.9

2 ACSR ZEBRA

15 MISA KOPILI POWERGRID 72.8 1 ACSR ZEBRA 16 MISA KOPILI POWERGRID 72.8 2 ACSR ZEBRA 17 MISA KOPILI POWERGRID 75.9 3 AAAC ZEBRA 18

MISA BYRNIHAT MeECL 115.

0 1 SINGLE ZEBRA

19 MISA BYRNIHAT MeECL

115.0

2 SINGLE ZEBRA

20 NTPS TINSUKIA AEGCL 40.0 1 SINGLE ZEBRA 21 NTPS TINSUKIA AEGCL 40.0 2 SINGLE ZEBRA 22

SALAKATI ALIPURDUAR

POWERGRID 100.

6 1 ACSR ZEBRA

23 SALAKATI

ALIPURDUAR

POWERGRID 100.

6 2 ACSR ZEBRA

24 SALAKATI BTPS AEGCL 2.7 1 ACSR ZEBRA 25 SALAKATI BTPS POWERGRID 2.7 2 ACSR ZEBRA 26

SAMAGURI JAWAHARNAGAR

AEGCL 120 1 AAAC ZEBRA

27 SAMAGURI MARIANI AEGCL

164.0

1 AAAC DEER

28 SAMAGURI MISA POWERGRID 34.4 1 ACSR ZEBRA 29 SAMAGURI MISA POWERGRID 34.4 2 ACSR ZEBRA 30

SARUSAJAI JAWAHARNAGAR

AEGCL 10 1 AAAC ZEBRA

31 SARUSAJAI LANGPI AEGCL

108.0

1 AAAC ZEBRA

32 SARUSAJAI SAMAGURI AEGCL

124.0

2 AAAC ZEBRA

33 MARIANI (PG)

MOKOKCHUNG (PG)

POWERGRID 48.8 1

ACSR ZEBRA

34 MARIANI MOKOKCH POWERGRID 48.8 2 ACSR ZEBRA

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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(PG) UNG (PG) 35 KATHALGU

RI MARIANI(PG)

POWERGRID 160.5

1 ACSR TWIN MOOSE

36 KATHALGURI

MARIANI(AS)

POWERGRID 162.9

1 ACSR TWIN MOOSE

37 MISA MARIANI(PG)

POWERGRID 222.7

1 ACSR TWIN MOOSE

38 MISA MARIANI(AS)

POWERGRID 220.0

1 ACSR TWIN MOOSE

List 5:132kV Line details of Powergrid in North Eastern Region

SR. NO.

FROM TO UTILITY KM CKT

CONDUCTOR

1 AIZWAL KOLASIB

POWERGRID

66.1 1 AAAC

PANTHER

2 AIZWAL MELRIAT

POWERGRID

6.7 1 ACSR PANTHER

3 MELRIAT ZUANGTUI

POWERGRID

10.2 1 ACSR PANTHER

4 BADARPUR JIRIBAM

POWERGRID

67.2 1 AAAC

PANTHER

5 BADARPUR KUMARGHAT

POWERGRID

118.5 1 AAAC

PANTHER

6 BADARPUR PANCHGRAM

POWERGRID

1.0 1 AAAC

PANTHER

7 BADARPUR KOLASIB

POWERGRID

172.3 1 ACSR PANTHER

8 BADARPUR SILCHAR

POWERGRID

19 1 ACSR PANTHER

9 BADARPUR SILCHAR

POWERGRID

19 2 ACSR PANTHER

10 DIMAPUR DOYANG

POWERGRID

92.5 1 ACSR PANTHER

11 DIMAPUR DOYANG

POWERGRID

92.5 2 ACSR PANTHER

12 HAFLONG JIRIBAM

POWERGRID

100.0

1 ACSR PANTHER

13 IMPHAL IMPHAL POWERGRI 1.5 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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(MANIPUR) D

14 IMPHAL DIMAPUR

POWERGRID

168.9 1 ACSR PANTHER

15 JIRIBAM AIZWAL

POWERGRID

170.0 1 ACSR PANTHER

16 JIRIBAM LOKTAK

POWERGRID

82.4 2 ACSR PANTHER

17 UMRANSHU HAFLONG

POWERGRID/ASSAM

8.2 1 ACSR PANTHER

18 KHANDONG UMRANSHU

POWERGRID/ASSAM

11.4 1 ACSR PANTHER

19 KHANDONG KOPILI

POWERGRID

10.9 1 ACSR PANTHER

20 KHANDONG KOPILI

POWERGRID

10.9 2 ACSR ZEBRA

21 KHLEIHRIAT KHANDONG

POWERGRID

42.5 1 ACSR PANTHER

22 KHLEIHRIAT KHANDONG

POWERGRID

40.9 2 ACSR PANTHER

23 KHLEIHRIAT BADARPUR

POWERGRID

76.6 1 ACSR PANTHER

24 KHLEIHRIAT

KHLEIHRIAT (MeECL)

POWERGRID

5.5 1 ACSR PANTHER

25 KUMARGHAT AIZWAL

POWERGRID

131.0 1 ACSR PANTHER

26 KUMARGHAT R C NAGAR

POWERGRID

104.0

1 ACSR PANTHER

27 LEKHI NIRJULI

POWERGRID, DoP,AP

4 1 ACSR PANTHER

28 LOKTAK IMPHAL

POWERGRID

35.0 1 ACSR PANTHER

29 NIRJULI GOHPUR

POWERGRID

42.5 1 ACSR PANTHER

30 PALLATANA

SURAJMANI NAGAR

PoWERGRI

D 37 1 ACSR PANTHER

31 PANCHGRAM BADARPUR

POWERGRID

1.0 1 AAAC

PANTHER 32

R C NAGAR AGARTALA POWERGRI

D 8.4 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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33 R C NAGAR AGARTALA

POWERGRID

8.4 2 ACSR PANTHER

34 RANGANADI LEKHI

POWERGRID, DoP,AP

18 3 ACSR PANTHER

35 RANGANADI ZIRO

POWERGRID

44.5 1 ACSR PANTHER

36 RANGIA MOTONGA

POWERGRID

49 1 ACSR PANTHER

37 SALAKATI

GELYPHU (BHUTAN)

POWERGRID

49.2 1 ACSR PANTHER

38 SILCHAR SRIKONA

POWERGRID

1 1 ACSR PANTHER

39 SILCHAR SRIKONA

POWERGRID

1 2 AAAC

PANTHER 40 MOKOCHUNG

(PG) MOKOKCHUNG (NAGALAND)

POWERGRID

1.4 1 ACSR Zebra

41 MOKOCHUNG (PG)

MOKOKCHUNG (NAGALAND)

POWERGRID

1.4 2 ACSR Zebra

42 BISWANATH CHARIALI

(PG)

BISWANATH CHARIALI (AEGCL)

POWERGRID

12.9 1 ACSR PANTHER

43 BISWANATH CHARIALI

(PG)

BISWANATH CHARIALI (AEGCL)

POWERGRID

12.9 2 ACSR PANTHER

44 PASIGHAT ROING

POWERGRID

70 1 ACSR PANTHER

45 ROING TEJU

POWERGRID

60 1 ACSR PANTHER

46 TEJU NAMSAI

POWERGRID

90 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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List 6: : 132kV Lines details of NEEPCO in North Eastern Region

SR. NO.

FROM TO UTILITY

KM CKT CONDUCTOR

1 BALIPARA BHALUKPANG NEEPC

O 35 1

ACSR PANTHER

2 BHALUKPANG KHUPI NEEPC

O 32 1

ACSR PANTHER

3 KHUPI KIMI NEEPC

O 8 1

ACSR PANTHER

List 7:132kV Line details of AEGCL in North Eastern

SR. NO.

FROM TO UTILITY

KM CKT

CONDUCTOR

1 B CHARIALI GOHPUR AEGCL 51.0 1 ACSR PANTHER 2 BALIPARA DEPOTA AEGCL 28.0 1 ACSR PANTHER

3 BALIPARA GOHPUR AEGCL

106.0

1 SINGLE ZEBRA

4 BOKAJAN DIMAPUR AEGCL 5.0 1 ACSR PANTHER 5 BORNAGAR RANGIA AEGCL 86.0 1 ACSR PANTHER 6 CTPS JAGIROAD AEGCL 35.0 1 ACSR PANTHER 7 DEPOTA B CHARIALI AEGCL 57.0 1 ACSR PANTHER 8 DEPOTA SAMAGURI AEGCL 45.0 1 ACSR PANTHER 9 DHALIGAON BTPS AEGCL 22.0 1 ACSR PANTHER

10 DHALIGAON BTPS AEGCL 22.0 2 ACSR PANTHER

11 DHALIGAON NALBARI AEGCL

106.0

1 ACSR PANTHER

12 DHALIGAON BORNAGAR AEGCL 41.0 1 ACSR PANTHER

13 DHALIGAON

ASHOK PAPER MILL

AEGCL 37.0 1 ACSR PANTHER

14 DHALIGAON BRPL AEGCL 1.0 1 ACSR PANTHER 15 DIBRUGARH MORAN AEGCL 36.0 1 ACSR PANTHER

16 DIPHU

SANKARDEV NGR

AEGCL 72.0 1 ACSR PANTHER

17 DISPUR CTPS AEGCL 29.0 1 ACSR PANTHER 18 GOHPUR N LAKHIMPUR AEGCL 77.0 1 ACSR PANTHER 19 GOHPUR N LAKHIMPUR AEGCL 77.0 1 ACSR PANTHER 20 GOLAGHAT BOKAJAN AEGCL 65.0 1 ACSR PANTHER 21 GOSAIGAON DHALIGAON AEGCL 65.0 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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22 GOSAIGAON GAURIPUR AEGCL 62.0 1 ACSR PANTHER 23 HAFLONG HAFLONG AEGCL 1.0 1 ACSR PANTHER 24 JAGIROAD HPC AEGCL 5.0 1 ACSR PANTHER 25 JIRIBAM PAILAPOOL AEGCL 15.0 1 ACSR PANTHER 26 JORHAT BOKAKHAT AEGCL 89.0 1 ACSR PANTHER 27 KAHELIPARA NARENGI AEGCL 12.0 1 ACSR PANTHER 28 KAHELIPARA SARUSAJAI AEGCL 4.0 1 ACSR PANTHER 29 KAHELIPARA SARUSAJAI AEGCL 4.0 2 ACSR PANTHER 30 KAHELIPARA SARUSAJAI AEGCL 4.0 3 ACSR PANTHER 31 KAHELIPARA SARUSAJAI AEGCL 4.0 4 ACSR PANTHER 32 KAHELIPARA DISPUR AEGCL 3.0 1 ACSR PANTHER 33 LANKA DIPHU AEGCL 71.6 1 ACSR PANTHER 34 LTPS NTPS AEGCL 60.0 1 ACSR PANTHER 35 LTPS NTPS AEGCL 60.0 2 ACSR PANTHER 36 LTPS NAZIRA AEGCL 22.0 1 ACSR PANTHER 37 LTPS NAZIRA AEGCL 22.0 2 ACSR PANTHER 38 LTPS MARIANI AEGCL 80.0 1 ACSR PANTHER 39 LTPS MORAN AEGCL 39.0 1 ACSR PANTHER 40 MARIANI JORHAT AEGCL 20.0 1 ACSR PANTHER 41 MARIANI JORHAT AEGCL 20.0 2 ACSR PANTHER 42 MARIANI GOLAGHAT AEGCL 45.0 1 ACSR PANTHER 43 MOKOKCHUNG MARIANI AEGCL 19.0 1 ACSR PANTHER 44 N LAKHIMPUR DHEMAJI AEGCL 63.0 1 ACSR PANTHER 45 NALBARI RANGIA AEGCL 22.0 1 ACSR PANTHER 46 NARENGI CTPS AEGCL 20.0 1 ACSR PANTHER 47 NAZIRA SIBSAGAR AEGCL 13.0 1 ACSR PANTHER 48 PANCHGRAM SRIKONA AEGCL 19.0 1 ACSR PANTHER 49 PANCHGRAM SILCHAR AEGCL 30.0 1 ACSR PANTHER 50 RANGIA SISUGRAM AEGCL 33.0 1 ACSR PANTHER 51 RANGIA SIPAJHAR AEGCL 38.0 1 ACSR PANTHER 52 RANGIA KAHELIPARA AEGCL 46.0 1 ACSR PANTHER 53

RANGIA ROWTA AEGCL 108.

0 1

ACSR PANTHER

54 ROWTA DEPOTA AEGCL 72.0 1 ACSR PANTHER 55 ROWTA DEPOTA AEGCL 64.0 2 ACSR PANTHER 56

SAMAGURI SANKARDEV NGR

AEGCL 61.0 1 ACSR PANTHER

57 SILCHAR

DULLAVCHERRA

AEGCL 50.0 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 14 of 68

List 8: 132kV Line details of Manipur in North Eastern Region

SR. NO.

FROM TO UTILITY KM CKT

CONDUCTOR

1 CHURACHANDPUR KAKCHING MANIPUR 38.0 1 ACSR PANTHER 2 IMPHAL IMPHAL(PG) MANIPUR 2.3 2 ACSR PANTHER 3 IMPHAL (MANIPUR) KARONG MANIPUR 60.0 1 ACSR PANTHER 4 KAKCHING KONGBA MANIPUR 45.0 1 ACSR PANTHER 5 KONGBA YAINGANGPOKPI MANIPUR 33.0 1 ACSR PANTHER 6 LOKTAK NINGTHOUKONG MANIPUR 20.0 1 ACSR PANTHER 7 LOKTAK RENGPANG MANIPUR 42.0 1 ACSR PANTHER 8 NINGTHOUKONG CHURACHANDPUR MANIPUR 23.0 1 ACSR PANTHER 9 NINGTHOUKONG CHURACHANDPUR MANIPUR 23.0 2 ACSR PANTHER 10 NINGTHOUKONG IMPHAL(PG) MANIPUR 26.2 1 ACSR PANTHER 11 RENGPANG JIRIBAM MANIPUR 40.4 1 ACSR PANTHER 12 YAINGANGPOKPI IMPHAL MANIPUR MANIPUR 42.0 1 ACSR PANTHER

List 9: 132kV Line details of TSECL in North Eastern region

58 SIPAJHAR ROWTA AEGCL 44.0 1 ACSR PANTHER 59 SISUGRAM KAHELIPARA AEGCL 12.0 1 ACSR PANTHER 60 SRIKONA PAILAPOOL AEGCL 35.0 1 ACSR PANTHER 61 TINSUKIA LEDO AEGCL 53.0 1 ACSR PANTHER 62 TINSUKIA DIBRUGARH AEGCL 53.0 1 ACSR PANTHER 63 TINSUKIA NTPS AEGCL 43.0 1 ACSR PANTHER 64 Silchar Halaknandi AEGCL 27.0 1 ACSR PANTHER 65 Halaknandi Dullavcherra AEGCL 34.0 1 ACSR PANTHER 66

Balipara Sonabil AEGCL 10.0 1 AAAC PANTHER

67 Bilashipara Gauripur AEGCL 38.0 1 ACSR PANTHER 68 Bilashipara kokrajhar AEGCL 24.0 1 ACSR PANTHER 69 BTPS kokrajhar AEGCL 10.0 1 ACSR PANTHER

SR. NO. FROM TO

UTILITY KM CKT CONDUCTOR

1 AGARTALA BODHJ NGR TSECL 8.0 1 ACSR PANTHER 2 AGARTALA ROKHIA TSECL 35.0 1 ACSR PANTHER 3 AGARTALA ROKHIA TSECL 35.0 2 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

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List 10: 132kV Line details of Nagaland in North Eastern Region

4 BARAMURA GAMAITILLA TSECL 14.0 1 ACSR PANTHER 5 BODHJ NGR JIRANIA TSECL 7.0 1 ACSR PANTHER 6 DHALABIL AGARTALA TSECL 45.0 1 ACSR PANTHER 7 GAMAITILLA AMBASA TSECL 25.0 1 ACSR PANTHER 8 JIRANIA BARAMURA TSECL 15.0 1 ACSR PANTHER 9 KAMALPUR DHALABIL TSECL 32.0 1 ACSR PANTHER 10 P K BARI KAILASHOR TSECL 18.0 1 ACSR PANTHER 11 P K BARI KUMARGHAT TSECL 1.0 1 ACSR PANTHER 12 P K BARI AMBASA TSECL 45.0 1 ACSR PANTHER 13 P K BARI KAMALPUR TSECL 31.0 1 ACSR PANTHER 14 P K BARI DHARMA NAGAR TSECL 35.0 1 ACSR PANTHER 15 PALLATANA UDAIPUR TSECL 6 1 ACSR PANTHER 16 ROKHIA UDAIPUR TSECL 40.0 1 ACSR PANTHER 17 SURAJMANINAGAR BUDHJANGNAGAR TSECL 18.3 1 ACSR PANTHER 18 SURAJMANINAGAR BUDHJANGNAGAR TSECL 18.3 2 ACSR PANTHER 19 AMBASA KAMALPUR TSECL 31 1 ACSR PANTHER 20 RABINDRANAGAR MONARCHAK TSECL 3 1 ACSR PANTHER 21 MONARCHAK ROKHIA TSECL 29 1 ACSR PANTHER 22 MONARCHAK UDAIPUR TSECL 41 1 ACSR PANTHER

SR. NO.

FROM TO UTILITY KM CKT

CONDUCTOR

1 DIMAPUR DIMAPUR (PGCIL)

NAGALAND 1 1 ACSR PANTHER

2 DIMAPUR DIMAPUR NAGALAND 1 2 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 16 of 68

List 11: 132kV Line details of Mizoram in North eastern region

SR. NO. FROM TO UTILITY KM

CKT CONDUCTOR

1 ZUANGTUI SAITUAL MIZORAM 50.0 1 ACSR PANTHER 2 SERCHIP ZUANGTUI MIZORAM 54.0 1 ACSR PANTHER 3 LUNGLEI SERCHIP MIZORAM 69.0 1 ACSR PANTHER 4 AIZWAL LUANGMUAL MIZORAM 6.7 1 ACSR PANTHER 5 BHAIRABI KOLASIB MIZORAM 30.0 1 ACSR PANTHER

List 12: 132kV Line details of MeECL in North Eastern Region

(PGCIL) 3 DOYANG MOKOKCHUNG NAGALAND 30 1 ACSR PANTHER 4 KOHIMA MELURI NAGALAND 74 1 ACSR PANTHER

5 KOHIMA DIMAPUR (PGCIL)

NAGALAND 58 1 ACSR PANTHER

6 KOHIMA WOKHA NAGALAND 58 1 ACSR PANTHER 7 MELURI KIPHIRI NAGALAND 42 1 ACSR PANTHER 8 WOKHA DOYANG NAGALAND 13 1 ACSR PANTHER 9 MARIANI MOKOKCHONG NAGALAND 50 1 ACSR PANTHER

SR. NO.

FROM TO UTILITY KM CKT

CONDUCTOR

1 AGIA MENDIPATHAR MeECL 31.3 1 ACSR PANTHER

2 MENDIPATHAR

NAGALBIBRA MeECL

65.2 1 ACSR PANTHER

3 EPIP I

SHYAM CENTURY

MeECL 0.15 1

ACSR PANTHER

4 EPIP I MAITHAN MeECL 0.2 1 ACSR PANTHER 5 EPIP I SAI PRAKASH MeECL 4.0 1 ACSR PANTHER 6 EPIP I GREYSTONE MeECL 0.7 1 ACSR PANTHER 7 EPIP II EPIP I MeECL 2.5 1 ACSR PANTHER 8 EPIP II EPIP I MeECL 2.5 2 ACSR PANTHER 9 EPIP II KILLING MeECL 10.0 1 ACSR PANTHER

10 EPIP II KILLING MeECL 10.0 2 ACSR PANTHER 11 EPIP II TRISHUL MeECL 0.2 1 ACSR PANTHER 12 EPIP II NALARI MeECL 0.2 1 ACSR PANTHER

13 KHLEIHRIAT MeECL

LUMSHNONG MeECL 24.0 1 ACSR PANTHER

14 KHLEIHRIAT LESHKA MeECL 26.0 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 17 of 68

MeECL

15 KHLEIHRIAT MeECL

LESHKA MeECL

26.0 2 ACSR PANTHER

16 KHLEIHRIAT MeECL

KHLEIHRIAT MeECL 5.0 2 ACSR PANTHER

17 LUMSHNONG CMCL MeECL 0.16 1 ACSR PANTHER 18 LUMSHNONG MCL MeECL 3.0 1 ACSR PANTHER

19 LUMSHNONG

ADHUNIK CEMENT

MeECL 8.0 1

ACSR PANTHER

20 LUMSHNONG HILL CEMENT MeECL 8.0 1 ACSR PANTHER 21 LUMSHNONG JUD CEMENT MeECL 2.0 1 ACSR PANTHER 22 LUMSHNONG GVIL CEMENT MeECL 2.0 1 ACSR PANTHER 23 MAWLAI CHEERAPUNJI MeECL 41.0 1 ACSR PANTHER 24 MAWLAI NONGSTOIN MeECL 71.3 1 ACSR PANTHER 25 MAWLAI NEHU MeECL 9.2 1 ACSR PANTHER

26 NANGALBIBRA

TURA MeECL 68.7 1 ACSR PANTHER

27 NEHU NEIGHRIMS MeECL 7.0 1 ACSR PANTHER

28 NEHU

KHLEIHRIAT MeECL

MeECL 52.6 1 ACSR PANTHER

29 NEIGHRIMS

KHLEIHRIAT MeECL

MeECL 64.8 1 ACSR PANTHER

30 NONGSTOIN NANGALBIBRA MeECL 56.0 1 ACSR PANTHER 31 UMIUM NEHU MeECL 7.0 1 ACSR PANTHER 32 UMIUM ST I UMIUM ST II MeECL 3.0 1 ACSR PANTHER 33 UMIUM ST I MAWLAI MeECL 12.0 1 ACSR PANTHER 34 UMIUM ST I UMIUM MeECL 5.0 1 ACSR PANTHER 35 UMIUM ST I MAWNGAP MeECL 33 1 ACSR PANTHER 36 UMIUM ST I MAWNGAP MeECL 33 2 ACSR PANTHER 37 UMIUM ST III UMIUM ST I MeECL 17.5 1 ACSR PANTHER 38 UMIUM ST III UMIUM ST I MeECL 17.5 2 ACSR PANTHER 39 UMIUM ST IV UMIUM ST III MeECL 8.0 1 ACSR PANTHER 40 UMIUM ST IV UMIUM ST III MeECL 8.0 2 ACSR PANTHER 41 UMTRU UMIUM ST III MeECL 41.2 1 ACSR PANTHER 42 UMTRU UMIUM ST III MeECL 41.2 2 ACSR PANTHER 43 UMTRU UMIUM ST IV MeECL 37.6 1 ACSR PANTHER 44 UMTRU UMIUM ST IV MeECL 37.6 2 ACSR PANTHER 45 UMTRU EPIP II MeECL 0.7 1 ACSR PANTHER 46 UMTRU EPIP II MeECL 0.7 2 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 18 of 68

List 13: 132kV Line details of AP in North eastern Region

SR. NO.

FROM TO UTILITY KM CKT

CONDUCTOR

1 AGBPP DEOMALI AP 19 1 ACSR ZEBRA 2 DAPORIJO ALONG AP 81.7 1 ACSR PANTHER 3 HOZ CHIPMHU AP 30 1 ACSR PANTHER 4 LEKHI HOZ AP 18 1 ACSR PANTHER 5 ZIRO DAPORIJO AP 87.2 1 ACSR PANTHER 6 ALONG PASIGHAT AP 77 1 ACSR PANTHER

List 14: 66kV Line Details of North Eastern region

SR. NO.

FROM TO UTILITY KM CKT CONDUCTOR

1 AGIA LAKHIPUR AEGCL 34.0 1 ACSR WOLF 2 AMARPUR GUMTI TSECL 30.0 1 ACSR WOLF 3 BADARGHAT ROKHIA TSECL 24.0 1 ACSR WOLF 4 BADARGHAT AGARTALA TSECL 8.0 1 ACSR WOLF 5 BAGAFA SATCHAND TSECL 36.0 1 ACSR WOLF 6 BAGAFA UDAIPUR TSECL 29.0 1 ACSR WOLF 7 BARAMURA TELIAMURA TSECL 8.0 1 ACSR WOLF 8 BELONIA BAGAFA TSECL 15.0 1 ACSR WOLF 9 BOKAJAN DIPHU AEGCL 39.0 1 ACSR WOLF

10 DIMAPUR POWER HOUSE NAGALAND 4.0 1 ACSR WOLF

11 DIMAPUR SINGRIJAN NAGALAND 5.4 1 ACSR WOLF 12 DIMAPUR SINGRIJAN NAGALAND 5.4 2 ACSR WOLF 13 DULLAVCHERRA PATHARKANDI AEGCL .... 1 ACSR WOLF 14 FCI NTPS AEGCL 3.0 1 ACSR WOLF 15 FCI NTPS AEGCL 3.0 2 ACSR WOLF 16 GOKULNAGAR BADARGHAT TSECL 12.0 1 ACSR WOLF 17 GOLAGHAT BOKAJAN AEGCL 64.0 1 ACSR WOLF 18 GOLAGHAT BOKAJAN AEGCL 64.0 2 ACSR WOLF 19 GUMTI UDAIPUR TSECL 45.0 1 ACSR WOLF

47 EPIP I

MEGHA CARBIDES

MeECL 0.3 1 ACSR PANTHER

48 MAWLAI MAWNGAP I MeECL 2 1 ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 19 of 68

20 KHIPHIRE LIKHIMRO NAGALAND 35.0 1 ACSR WOLF 21 KHIPHIRE LIKHIMRO NAGALAND 35.0 2 ACSR WOLF 22 KOLASIB VAIRENGTE MIZORAM 35.0 1 ACSR WOLF 23 MARIANI GOLAGHAT AEGCL 40.0 1 ACSR WOLF 24 MARIANI GOLAGHAT AEGCL 40.0 2 ACSR WOLF 25 MARIANI NAZIRA AEGCL 54.0 1 ACSR WOLF 26 MARIANI NAZIRA AEGCL 54.0 2 ACSR WOLF 27 MOKOKCHUNG ZUNHEBOTO NAGALAND 46.0 1 ACSR WOLF 28 MOKOKCHUNG TULI NAGALAND 56.3 1 ACSR WOLF 29 MOKOKCHUNG TUENSANG NAGALAND 50.4 1 ACSR WOLF 30 NAGINIMORA TIZIT NAGALAND 44.0 1 ACSR WOLF 31 NAZIRA NTPS AEGCL 74.0 1 ACSR WOLF 32 NAZIRA NTPS AEGCL 74.0 2 ACSR WOLF 33 NITO FARM DAIRY FARM NAGALAND 12.0 1 ACSR WOLF 34 PATHARKANDI ADAMTILLA AEGCL .... 1 ACSR WOLF 35 POWER HOUSE DAIRY FARM NAGALAND 5.0 1 ACSR WOLF

36 RABINDRA NAGAR

BELONIA TSECL 38.0 1 ACSR WOLF

37 ROKHIA RABINDRA NAGAR

TSECL 23.0 1 ACSR WOLF

38 SATCHAND SABROOM TSECL 15.0 1 ACSR WOLF

39 SINGRIJAN GANESH NAGAR

NAGALAND 21.4 1 ACSR WOLF

40 SINGRIJAN CHUMUKIDIMA NAGALAND 7.9 1 ACSR WOLF 41 TELIAMURA AMARPUR TSECL 35.0 1 ACSR WOLF 42 TINSUKIA RUPAI AEGCL 25.0 1 ACSR WOLF 43 TINSUKIA NTPS AEGCL 36.0 1 ACSR WOLF 44 TINSUKIA NTPS AEGCL 36.0 2 ACSR WOLF 45 TIZIT MON NAGALAND 31.0 1 ACSR WOLF 46 TUENSANG KHIPHIRE NAGALAND 55.7 1 ACSR WOLF 47 TULI NAGINIMORA NAGALAND 33.0 1 ACSR WOLF 48 UDAIPUR GOKULNAGAR TSECL 31.0 1 ACSR WOLF

List 15: Shunt Compensated Lines in North Eastern Region

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 20 of 68

SR. NO.

FROM(End 1) TO(End 2) UTILITY KM CKT End 1 End 2

1 BONGAIGAON BALIPARA POWERGRID 289.9 1 50 63 2 BONGAIGAON BALIPARA POWERGRID 289.9 2 50 63 3 BONGAIGAON BALIPARA POWERGRID 305 3 63 63 4 BONGAIGAON BALIPARA POWERGRID 305 4 63 63

5 MISA

NEW MARIANI

POWERGRID 382.9 1 50 NIL

6 MISA MARIANI POWERGRID 220 1 50 NIL 7 PALLATANA SILCHAR NETCL 247 1 63 50 8 PALLATANA SILCHAR NETCL 247 2 63 50

9 RANGANADI

BISWANATH CHARALI

POWERGRID 204 1 50 NIL

10 RANGANADI

BISWANATH CHARALI

POWERGRID 204 2 50 NIL

11 BALIPARA

BISWANATH CHARALI

POWERGRID 65 1 50 NIL

12 BALIPARA

BISWANATH CHARALI

POWERGRID 65 2 50 NIL

13 SILCHAR AZARA NETCL 264 1 63 63 14 BANGAIGAON AZARA NETCL 118 1 63 NIL 15 SILCHAR BYRNIHAT NETCL 217.1 1 63 63 16 BANGAIGAON BYRNIHAT NETCL 167 1 63 NIL

List 16: Shunt Compensated Inter-Regional Lines in North Eastern Region

SR. NO.

FROM(End 1) TO(End 2) UTILITY KM CKT End 1 End 2

1 BONGAIGAON BINAGURI

(ER) POWERGRID 218 1 63 NIL

2 BONGAIGAON BINAGURI

(ER) POWERGRID 218 2 63 NIL

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 21 of 68

List 17: Inter State Line details of North Eastern Region

SR. NO

.

CONNECTING STATES

OWNED BY

FROM TO KV

KM CKTS

CONDUCTO

R

1 ARUNACHAL – ASSAM

POWERGRID RANGANADI

BISWANTHCHARALI

400 204 D/C ACSR TWIN

MOOSE ARUNACHAL PRADESH

DEOMALI KATHALGURI

220 19.0 S/C ACSR

ZEBRA

NEEPCO KHUPI BALIPARA 132 67.2 S/C ACSR

PANTHER

POWERGRID NIRJULI GOHPUR 132 42.5 S/C ACSR

PANTHER

2 ASSAM – MEGHALAYA

POWERGRID BADARPUR

KHLIEHRIET

132 76.6 S/C ACSR

PANTHER

POWERGRID KHANDONG

KHLIEHRIET

132 42.5 D/C ACSR

PANTHER

AEGCL & MeECL

PANCHGRAM

LUMSHNONG

132 23.4 S/C ACSR

PANTHER

AEGCL & MeECL

SARASUJAI

UMTRU 132 37.0 D/C ACSR

PANTHER

AEGCL & MeECL

AGIA MENDIPATHAR

132 31.3 S/C

ACSR PANTHE

R

POWERGRID MISA KILLING 220 115 D/C SINGLE ZEBRA

AEGCL & MeECL

KAHILIPARA

UMTRU 132 9.0 D/C ACSR

PANTHER

3

ASSAM - NAGALAND

POWERGRID MISA DIMAPUR 220 123.5 D/C ACSR

ZEBRA

AEGCL & NAGALAND

MARIANI MOKOKCHUNG

132 50.0 S/C ACSR

PANTHER

AEGCL BOKAJAN DIMAPUR 132 5.0 S/C ACSR

PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 22 of 68

POWERGRID MARIANI MOKOKCHONG

220 48.8 D/C ACSR

ZEBRA AEGCL & NAGALAND

BOKAJAN DIMAPUR 66 8.0 S/C ACSR WOLF

ASSAM – TRIPURA

AEGCL & TRIPURA

DULLAVCHERRA

DHARMANAGAR

132 29.0 S/C ACSR PANTHER

POWERGRID SILCHAR PK-BARI 400 127.2 D/C ACSR TWIN MOOSE

POWERGRID BADARPUR

KUMARAGHAT

132 118.5 S/C ACSR PANTHER

4 ASSAM – MANIPUR

POWERGRID BADARPUR

JIRIBAM 132 67.2 S/C ACSR PANTHER

POWERGRID HAFLONG JIRIBAM 132 100.6 S/C ACSR PANTHER

POWERGRID SILCHAR IMPHAL 400 140 D/C ACSR TWIN MOOSE

AEGCL PAILAPOOL

JIRIBAM 132 15.0 S/C ACSR PANTHER

5 ASSAM – MIZORAM

POWERGRID BADARPUR

KOLASIB 132 107.2 S/C ACSR PANTHER

6 MIZORAM – MANIPUR

POWERGRID AIZWAL JIRIBAM 132 172.3 S/C ACSR PANTHER

7 MIZORAM – TRIPURA

POWERGRID AIZWAL KUMARAGHAT

132 131.0 S/C ACSR PANTHER

8 NAGALAND – MANIPUR

POWERGRID DIMAPUR IMPHAL 132 168.9 S/C ACSR PANTHER

MANIPUR & NAGALAND

KOHIMA KARONG 132 50.0 S/C ACSR PANTHER

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 23 of 68

Annexure III: List of ICTs in North Eastern Region List 1: ICTS details of POWERGRID in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP

PT %AGE

KV

1 BALIPARA POWERGRID 01 315 400/220 /33 kV

TELK 17 9 1.25 5 9

2 BALIPARA POWERGRID 02 315 400/220 /33 kV

17 9 1.25 5 9

3 BONGAIGAON POWERGRID 01 315 400/220 /33 kV

TELK 17 9 1.25 5 12

4 SILCHAR POWERGRID 01 200 400/132

kV CGL 17 9 1.25 5 9B

5 SILCHAR POWERGRID 02 200 400/132

kV CGL 17 9 1.25 5 9B

6 MISA POWERGRID 01 315 400/220 /33 kV

TELK 17 9 1.25 5 05

7 MISA POWERGRID 02 315 400/220

kV CGL 17 9 1.25 5 05

8 DIMAPUR POWERGRID 01 100 220/132

kV TELK 17 9 1.25 2.75 12

9 DIMAPUR POWERGRID 02 100 220/132

kV ALSTOM 17 9 1.25 2.75 12

10 NIRJULI POWERGRID 01 50 132 /33

kV ….

17 9 1.25 1.65 09

11 NIRJULI POWERGRID 02 50 132 /33

kV ….

5 3 1.25 1.65 03

12 SALAKATI POWERGRID 01 50 220/132

kV NGEF 17 13 1.25 2.75 13

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 24 of 68

List 2: ICTs details of NEEPCO in North Eastern Region

SL. SUBSTATION AGENCY ICT MVA KV RATIO MAKE TT NT STEP PT

13 SALAKATI POWERGRID 02 50 220/132

kV EMCO 17 13 1.25 2.75 16

14 ZIRO POWERGRID 01 15 132 /33

kV AREVA

/ALSTOM 17 9 1.25 1.65 02

15 KOPILI POWERGRID 01 160 220/132

kV ….

17

9 1.25. 2.75 9

16 IMPHAL POWERGRID 01 50 132/33

kV

….

….

….

….

….

….

17 IMPHAL POWERGRID 02 50 132/33

kV

….

….

….

….

….

….

18 MOKOKCHUNG POWERGRID 01 30 220/132

kV …. 13 9 1.25 2.75 6

19 MOKOKCHUNG POWERGRID 02 30 220/132

kV …. 13 9 1.25 2.75 6

20 BISWANATH

CHARIALI POWERGRID 01 200

400/132 kV

…. 17 9 1.25 5 8

21 BISWANATH

CHARIALI POWERGRID 02 200

400/132 kV

…. 17 9 1.25 5 8

22 ROING POWERGRID 01 15 132/33

kV …. …. …. …. …. ….

23 ROING POWERGRID 02 15 132/33

kV …. …. …. …. …. ….

24 TEJU POWERGRID 01 15 132/33

kV …. …. …. …. …. ….

25 TEJU POWERGRID 02 15 132/33

kV …. …. …. …. …. ….

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 25 of 68

NO. NO. %AGE KV

1 RHEP NEEPCO 01 7.5 132/33

KV …. …. …. …. …. 02

2 RHEP NEEPCO 02 7.5 132/33

KV …. …. …. …. …. 03

3 BALIPARA NEEPCO 01 50 220/132

KV …. 17 9 1.25 2.75 09

4 KOPILI NEEPCO 01 60 220/132

KV …. …. …. …. …. 09

5 RHEP NEEPCO 01 360 400/132

KV …. 17 9 2.5 10 9

6 RHEP NEEPCO 02 360 400/132

KV …. 17 9 2.5 10 09

List 3: ICTs details of NHPC in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP PT

%AGE KV

1 LOKTAK NHPC 01 5 132/33

KV …. …. …. …. …. 02

List 4: ICTs details of NTPC in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV RATIO MAKE TT NT STEP

PT %AGE KV

1 BGTPP NTPC 02 315 400/220/33

KV BHEL 17 9 1.25 5 9

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 26 of 68

List 5: ICTs details of Arunachal Pradesh in North Eastern Region

List 6: ICTs details of AEGCL in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA kV RATIO MAKE TT NT STEP

PT %AGE KV

1 AGIA AEGCL 01 50 220/132

kV …. 23 13 1.25 2.75 12

2 AGIA AEGCL 02 100 220/132

kV …. 17 9 1.25 2.75 11

SL. NO. SUBSTATION AGENCY ICT

NO. MVA KV RATIO MAKE TT NT

STEP PT

%AGE KV

1 ALONG ARUNACHAL

PRADESH 01 15

132/33 KV

…. …. …. …. …. 03

2 DAPORIJO ARUNACHAL

PRADESH 01 5

132/33 KV

…. …. …. …. …. 02

3 DAPORIJO ARUNACHAL

PRADESH 02 5

132/33 KV

…. …. …. …. …. 02

4 DEOMALI ARUNACHAL

PRADESH 01 33.3

220/

132 kV

ALSTOM

…. …. …. …. 09

5 DEOMALI ARUNACHAL

PRADESH 01 16

132/33 KV

…. …. …. …. …. 04

6 LEKHI ARUNACHAL

PRADESH 01 15

132/33 KV

…. …. …. …. …. 05

7 LEKHI ARUNACHAL

PRADESH 01 20

132/33 KV

…. …. …. …. …. 05

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 27 of 68

2 AGIA AEGCL 01 40 132/33 kV …. …. …. …. …. 05

3 AGIA AEGCL 01 12.5 132/33 kV …. …. …. …. …. 05

4 AZARA AEGCL 01 315 400/220 EMCO 17 9 1.25 5 08

5 AZARA AEGCL 02 315 400/220 EMCO 17 9 1.25 5 08

6 ASHOK PAPER MILL AEGCL 01 12.5 132/33 kV …. …. …. …. …. 05

7 ASHOK PAPER MILL AEGCL 01 16 132/33 kV …. …. …. …. …. 05

8 BAGHJHAP AEGCL 01 16 132/33 kV …. …. …. …. …. 05

9 BAGHJHAP AEGCL 02 16 132/33 kV …. …. …. …. …. 05

10 BALIPARA AEGCL 01 50160 220 /132

kV BHEL 17 9B …. …. 9B

11 BOKO AEGCL 01 100 220/132

kV CGL 17 13 …. …. 14

12 BOKO AEGCL 02 50 220/132

kV CGL 17 13 …. …. 15

13 B CHARIALI AEGCL 01 16 132/33 kV …. …. …. …. …. 17

14 B CHARIALI AEGCL 02 16 132/33 kV …. …. …. …. …. 17

15 BORNAGAR AEGCL 01 25 132/33 kV …. …. …. …. …. ….

16 BORNAGAR AEGCL 02 25 132/33 kV …. …. …. …. …. ….

17 BOKAKHAT AEGCL 01 16 132/33 kV …. …. …. …. …. ….

18 BOKAKHAT AEGCL 02 16 132/33 kV …. …. …. …. …. ….

19 BOKAJAN AEGCL 01 16 132/33 kV …. …. …. …. …. ….

20 BTPS AEGCL 01 10 132/33 kV …. …. …. …. …. ….

21 BTPS AEGCL 02 10 132/33 kV …. …. …. …. …. ….

22 BTPS AEGCL 01 80 220/132

kV …. 17 9 1.25 2.75 9

23 BTPS AEGCL 02 80 220/132

kV …. 17 9 1.25 2.75 9

24 BTPS AEGCL 03 160 220/132 …. 17 9 1.25 2.75 9

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 28 of 68

kV

25 CTPS AEGCL 01 16 132/33 kV …. …. …. …. …. ….

26 CTPS AEGCL 01 30 132/33 kV …. …. …. …. …. ….

27 DEPOTA AEGCL 01 31.5 132/33 kV …. …. …. …. …. 05

28 DEPOTA AEGCL 02 31.5 132/33 kV …. …. …. …. …. 05

29 DHALIGAON AEGCL 01 25 132/33 kV …. …. …. …. …. ….

30 DHALIGAON AEGCL 02 25 132/33 kV …. …. …. …. …. ….

31 DHEMAJI AEGCL 01 16 132/33 kV …. …. …. …. …. ….

32 DIPHU AEGCL 01 16 132/66 kV …. …. …. …. …. ….

33 DIPHU AEGCL 02 16 132/66 kV …. …. …. …. …. ….

34 DIBRUGARH AEGCL 01 31.5 132/33 kV …. …. …. …. …. 08

35 DIBRUGARH AEGCL 01 20 132/33 kV …. …. …. …. …. 08

36 DIBRUGARH AEGCL 02 20 132/33 kV …. …. …. …. …. 08

37 DISPUR AEGCL 01 16 132/33 kV …. …. …. …. …. ….

38 DISPUR AEGCL 02 16 132/33 kV …. …. …. …. …. ….

39 DULLAVCHERRA AEGCL 01 3.5 132/33 kV …. …. …. …. …. ….

40 DULLAVCHERRA AEGCL 02 3.5 132/33 kV …. …. …. …. …. ….

41 DULLAVCHERRA AEGCL 03 3.5 132/33 kV …. …. …. …. …. ….

42 DULLAVCHERRA AEGCL 04 3.5 132/33 kV …. …. …. …. …. ….

43 DULLAVCHERRA AEGCL 05 3.5 132/33 KV …. …. …. …. …. ….

44 DULLAVCHERRA AEGCL 06 3.5 132/33 KV …. …. …. …. …. ….

45 GAURIPUR AEGCL 01 10 132/33 kV …. …. …. …. …. ….

46 GAURIPUR AEGCL 02 10 132/33 KV …. …. …. …. …. ….

47 GOHPUR AEGCL 01 16 132/33 kV …. …. …. …. …. 05

48 GOHPUR AEGCL 01 10 132/33 kV …. …. …. …. …. 03

49 GOSSAIGAON AEGCL 01 16 132/33 kV …. …. …. …. …. ….

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 29 of 68

50 GOLAGHAT AEGCL 01 25 132/33 kV …. …. …. …. …. ….

51 GOLAGHAT AEGCL 02 25 132/33 kV …. …. …. …. …. ….

52 HAFLONG AEGCL 01 10 132/33 kV …. …. …. …. …. 05

53 HAFLONG AEGCL 02 10 132/33 kV …. …. …. …. …. 05

54 JORHAT AEGCL 01 25 132/33 KV …. …. …. …. …. ….

55 JORHAT AEGCL 01 16 132/33 kV …. …. …. …. …. ….

56 KAHELIPARA AEGCL 01 30 132/33 kV …. …. …. …. …. 05

57 KAHELIPARA AEGCL 02 30 132/33 kV …. …. …. …. …. 05

58 KAHELIPARA AEGCL 03 30 132/33 kV …. …. …. …. …. 06

59 KAHELIPARA AEGCL 01 10 132/33/11

kV …. …. …. …. …. 02

60 KAHELIPARA AEGCL 02 10 132/33/11

kV …. …. …. …. …. 02

61 LEDO AEGCL 01 10 132/33 kV …. …. …. …. …. 06

62 LEDO AEGCL 02 10 132/33 kV …. …. …. …. …. 06

63 LTPS AEGCL 01 7.5 132/33 kV …. …. …. …. …. ….

64 LTPS AEGCL 02 7.5 132/33 kV …. …. …. …. …. ….

65 MAJULI AEGCL 01 5.5 132/33 kV …. …. …. …. …. ….

66 MARIANI AEGCL 01 20 132/66 kV …. …. …. …. …. 06

67 MARIANI AEGCL 02 20 132/66 kV …. …. …. …. …. 06

68 MARIANI AEGCL 01 100 220/132

kV …. 17 9 1.25 2.75 13

69 MARIANI AEGCL 02 100 220/132

kV …. 17 9 1.25 2.75 13

70 MORAN AEGCL 01 16 132/33 KV …. …. …. …. …. ….

71 MORAN AEGCL 02 16 132/33 kV …. …. …. …. …. ….

72 NALBARI AEGCL 01 16 132/33 kV …. …. …. …. …. ….

REACTIVE POWER MANAGEMENT AND VOLTAGE CONTROL IN NORTH EASTERN REGION

Page 30 of 68

73 NALBARI AEGCL 02 16 132/33 kV …. …. …. …. …. ….

74 NALKATA

(NORTH LAKHIMPUR) AEGCL 01 10 132/33 kV …. …. …. …. …. ….

75 NALKATA

(NORTH LAKHIMPUR) AEGCL 02 10 132/33 kV …. …. …. …. …. ….

76 NARENGI AEGCL 01 25 132/33 kV …. …. …. …. …. ….

77 NARENGI AEGCL 02 25 132/33 kV …. …. …. …. …. ….

78 NAZIRA AEGCL 01 25 132/33 kV …. …. …. …. …. 06

79 NTPS AEGCL 01 25 132/66 kV …. …. …. …. …. ….

80 NTPS AEGCL 02 25 132/66 kV …. …. …. …. …. ….

81 PAILAPOOL AEGCL 01 10 132/33 kV …. …. …. …. …. 05

82 PAILAPOOL AEGCL 02 10 132/33 kV …. …. …. …. …. 05

83 PAILAPOOL AEGCL 03 10 132/33 kV …. …. …. …. …. 05

84 PANCHGRAM AEGCL 01 16 132/33 kV …. …. …. …. …. 08

85 PANCHGRAM AEGCL 02 16 132/33 kV …. …. …. …. …. 08

86 PANCHGRAM AEGCL 01 10 132/33 kV …. …. …. …. …. 01

87 PANCHGRAM AEGCL 02 10 132/33 kV …. …. …. …. …. 03

88 PAVOI AEGCL 01 16 132/33 KV …. …. …. …. …. ….

89 PAVOI AEGCL 02 16 132/33 KV …. …. …. …. …. ….

90 RANGIA AEGCL 01 25 132/33 KV …. …. …. …. …. 03

91 RANGIA AEGCL 02 25 132/33 KV …. …. …. …. …. 03

92 ROWTA AEGCL 01 25 132/33 KV …. …. …. …. …. 03

93 ROWTA AEGCL 02 25 132/33 KV …. …. …. …. …. 03

94 S NAGAR AEGCL 01 16 132/33 KV …. …. …. …. …. 04

95 S NAGAR AEGCL 02 16 132/33 KV …. …. …. …. …. 05

96 SAMAGURI AEGCL 01 50 220/132 …. 17 9 1.25 2.75 12

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kV

97 SAMAGURI AEGCL 02 50 220/132

kV …. 17 9 1.25 2.75 12

98 SAMAGURI AEGCL 03 50 220/132

kV …. 17 9 1.25 2.75 12

99 SAMAGURI AEGCL 01 25 132/33 KV …. …. …. …. …. 06

100 SAMAGURI AEGCL 02 25 132/33 KV …. …. …. …. …. 06

101 SARUSAJAI AEGCL 01 31.5 132/33 KV …. …. …. …. …. 06

102 SARUSAJAI AEGCL 02 31.5 132/33 KV …. …. …. …. …. 06

103 SARUSAJAI AEGCL 01 100 220/132

KV …. 17 9 1.25 2.75 6

104 SARUSAJAI AEGCL 02 100 220/132

kV …. 17. 9 1.25 2.75 8

105 SARUSAJAI AEGCL 03 100 220/132

kV …. 17 9 1.25 2.75 7

106 SISUGRAM AEGCL 01 31.5 132/33 KV …. …. …. …. …. 06

107 SISUGRAM AEGCL 02 31.5 132/33 KV …. …. …. …. …. 06

108 SIBSAGAR AEGCL 01 16 132/33 KV …. …. …. …. …. ….

109 SIBSAGAR AEGCL 02 16 132/33 KV …. …. …. …. …. ….

110 SIPAJHAR AEGCL 01 16 132/33 KV …. …. …. …. …. ….

111 SIPAJHAR AEGCL 02 16 132/33 KV …. …. …. …. …. ….

112 SRIKONA AEGCL 01 25 132/33 KV …. …. …. …. …. 05

113 SRIKONA AEGCL 02 25 132/33 KV …. …. …. …. …. 05

114 TINSUKIA AEGCL 01 20 132/66 KV …. …. …. …. …. 02

115 TINSUKIA AEGCL 02 20 132/66 KV …. …. …. …. …. 04

116 TINSUKIA AEGCL 03 20 132/66 KV …. …. …. …. …. 03

117 TINSUKIA AEGCL 01 50 220/132

kV …. 17 9 1.25 2.75

115

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118 TINSUKIA AEGCL 02 50 220/132

kV …. 17 9 1.25 2.75 15

119 SONABIL AEGCL

01 100 220/132

kV

…. …. …. …. …. …

120 SONABIL AEGCL

02 100 220/132

kV

…. …. …. …. …. …

121 HAILAKANDI AEGCL

01 16 132/33

KV

…. …. …. …. …. …

122 HAILAKANDI AEGCL

02 16 132/33

KV

…. …. …. …. …. …

123 SAMAGURI AEGCL

01 100 220/132k

V …. …. …. …. …. …

124 BILASHIPARA AEGCL

01 16 132/33

KV …. …. …. …. …. …

125 BILASHIPARA AEGCL

02 16 220/132k

V …. …. …. …. …. …

List 7: ICTs details of Manipur in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP PT

%AGE KV

1 CHURACHANDPUR MANIPUR 01 20 132/33

KV …. …. …. …. …. ….

2 IMPHAL MANIPUR 01 20 132/33

KV …. …. …. …. …. ….

3 IMPHAL MANIPUR 02 20 132/33

KV …. …. …. …. …. ….

4 IMPHAL MANIPUR 03 20 132/33 …. …. …. …. …. ….

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KV

5 KAKCHING MANIPUR 01 20 132/33

KV …. …. …. …. …. ….

6 KARONG MANIPUR 01 20 132/33

KV …. …. …. …. …. ….

7 NINGTHOUKHONG MANIPUR 01 12.5 132/33

KV …. …. …. …. …. ….

8 NINGTHOUKHONG MANIPUR 02 12.5 132/33

KV …. …. …. …. …. ….

9 YANGANGPOKPI MANIPUR 01 20 132/33

KV …. …. …. …. …. ….

10 YANGANGPOKPI MANIPUR 02 20 132/33

KV …. …. …. …. …. ….

11 JIRIBAM MANIPUR 01 6.3 132/33

KV …. …. …. …. …. ….

List 8: ICTs details of Meghalaya in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP PT

%AGE KV

1 CHERAPUNJEE MeECL 01 12.5 132/33

KV …. …. …. …. …. 06

2 EPIP I MeECL 01 20 132/33

KV …. …. …. …. …. 03

3 EPIP I MeECL 02 20 132/33

KV …. …. …. …. …. 03

4 EPIP II MeECL 01 50 132/33

KV …. …. …. …. …. 08

5 KHLIEHRIAT MeECL 01 20 132/33

KV …. …. …. …. …. 05

6 KHLIEHRIAT MeECL 02 20 132/33

KV …. …. …. …. …. 06

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7 MAWLAI MeECL 01 20 132/33

KV …. …. …. …. …. 04

8 MAWLAI MeECL 02 20 132/33

KV …. …. …. …. …. 08

9 MAWLAI MeECL 01 10 132/33

KV …. …. …. …. …. 03

10 MAWLAI MeECL 01 12.5 132/33

KV …. …. …. …. …. 07

11 NANGALBIBRA MeECL 01 10 132/33

KV …. …. …. …. …. 07

12 NANGALBIBRA MeECL 01 12.5 132/33

KV …. …. …. …. …. 06

13 NEHU MeECL 01 20 132/33

KV …. …. …. …. …. 06

14 NEHU MeECL 02 20 132/33

KV …. …. …. …. …. 06

15 NEIGRIHMS MeECL 01 10 132/33

KV …. …. …. …. …. 05

16 NEIGRIHMS MeECL 02 10 132/33

KV …. …. …. …. …. 04

17 NONGSTOIN MeECL 01 12.5 132/33

KV …. …. …. …. …. 04

18 UMIUM ST III MeECL 01 10 132/33

KV …. …. …. …. …. 08

19 TURA MeECL 01 20 132/33

KV …. …. …. …. …. 15

20 TURA MeECL 01 15 132/33

KV …. …. …. …. …. 15

21 TURA MeECL 02 15 132/33

KV …. …. …. …. …. 15

22 TURA MeECL 03 15 132/33

KV …. …. …. …. …. 15

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23 LUMSHNONG MeECL 01 10 132/33

KV …. …. …. …. …. ….

24 UMTRU MeECL 01 20 132/33

KV …. …. …. …. …. 02

25 BYRNIHAT MeECL 01 315 400/132 …. 17 9 1.25 5 9

26 BYRNIHAT MeECL 02 315 400/132 …. 17 9 1.25 5 9

27 BYRNIHAT MeECL 03 160 220/132 …. 17 9 1.25 2.75 9

28 BYRNIHAT MeECL 04 160 220/132 …. 17 9 1.25 2.75 9

29 NANGALBIBRA MeECL 01 12.5 132/33 …. …. …. …. …. ….

30 NANGALBIBRA MeECL 02 12.5 132/33 …. …. …. …. …. ….

List 9: ICTs details of Mizoram in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV RATIO MAKE TT NT STEP

PT %AGE KV

1 AIZAWL

LUANGMUAL MIZORAM 01 12.5 132/33 KV …. …. …. …. …. 05

2 AIZAWL

LUANGMUAL MIZORAM 02 12.5 132/33 KV …. …. …. …. …. 05

3 AIZAWL

ZUANGTUI MIZORAM 01 12.5 132/33 KV …. …. …. …. …. 05

4 AIZAWL

ZUANGTUI MIZORAM 02 12.5 132/33 KV …. …. …. …. …. 05

5 KOLASIB MIZORAM 01 12.5 132/66 KV …. …. …. …. …. 10

6 KOLASIB MIZORAM 02 12.5 132/66 KV …. …. …. …. …. 09

7 LUNGLEI MIZORAM 01 12.5 132/33 KV …. …. …. …. …. 05

8 LUNGLEI MIZORAM 02 12.5 132/33 KV …. …. …. …. …. 09

9 SERCHHIP MIZORAM 01 12.5 132/33 KV …. …. …. …. …. 02

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10 SERCHHIP MIZORAM 02 6.3 132/33 KV …. …. …. …. …. 03

11 SAITUAL MIZORAM 01 6.3 132/33 KV …. …. …. …. …. 06

List 10: ICTs details of Nagaland in North Eastern Region

SL. NO. SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP PT

%AGE KV

1 DIMAPUR NAGALAND 01 20 132/66

KV …. …. …. …. …. 05

2 DIMAPUR NAGALAND 02 20 132/66

KV …. …. …. …. …. 05

3 DIMAPUR NAGALAND 03 20 132/66

KV …. …. …. …. …. 03

4 KIPHIRE NAGALAND 01 6.5 132/66

KV …. …. …. …. …. 04

5 KIPHIRE NAGALAND 02 6.5 132/66

KV …. …. …. …. …. 04

6 KIPHIRE NAGALAND 03 6.5 132/66

KV …. …. …. …. …. 04

7 KOHIMA NAGALAND 01 8 132/33

KV …. …. …. …. …. 03

8 KOHIMA NAGALAND 02 8 132/33

KV …. …. …. …. …. 03

9 KOHIMA NAGALAND 03 8 132/33

KV …. …. …. …. …. 03

10 MELURI NAGALAND 01 5 132/33

KV …. …. …. …. …. 01

11 MOKOKCHUNG NAGALAND 01 12.5 132/66

KV …. …. …. …. …. 04

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12 MOKOKCHUNG NAGALAND 02 12.5 132/66

KV …. …. …. …. …. 04

13 WOKHA NAGALAND 01 5 132/33

KV …. …. …. …. …. 03

List 11: ICTs details of TsECL in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP PT

%AGE KV

1 AGARTALA TSECL 01 15 132/66

KV …. …. …. …. …. 09

2 AGARTALA TSECL 01 15 132/33

KV …. …. …. …. …. 13

3 AGARTALA TSECL 02 15 132/33

KV …. …. …. …. …. 13

4 AGARTALA TSECL 03 15 132/33

KV …. …. …. …. …. 13

5 AGARTALA TSECL 04 15 132/33

KV …. …. …. …. …. 13

6 AGARTALA TSECL 01 20 132/33

KV …. …. …. …. …. 13

7 AGARTALA TSECL 02 20 132/33

KV …. …. …. …. …. 13

8 AGARTALA TSECL 01 15 132/11

KV …. …. …. …. …. 13

9 AMBASA TSECL 01 7.5 132/33

KV …. …. …. …. …. 08

10 AMBASA TSECL 02 7.5 132/33

KV …. …. …. …. …. 08

11 BARAMURA TSECL 01 30 132/66

KV …. …. …. …. …. 05

12 DHALABIL TSECL 01 7.5 132/33 …. …. …. …. …. 04

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KV

13 DHARMANAGAR TSECL 01 7.5 132/33

KV …. …. …. …. …. 07

14 DHARMANAGAR TSECL 02 7.5 132/33

KV …. …. …. …. …. 07

15 DHARMANAGAR TSECL 03 7.5 132/33

KV …. …. …. …. …. 07

16 KAILASHOR TSECL 01 7.5 132/33

KV …. …. …. …. …. 08

17 KAMALPUR TSECL 01 7.5 132/11

KV …. …. …. …. …. 08

18 P K BARI TSECL 01 15 132/33

KV …. …. …. …. …. 05

19 P K BARI TSECL 01 10 132/11

KV …. …. …. …. …. 05

20 ROKHIA TSECL 01 30 132/66

KV …. …. …. …. …. 05

21 UDAIPUR TSECL 01 15 132/66

KV …. …. …. …. …. 05

22 UDAIPUR TSECL 02 10 132/66

KV …. …. …. …. …. 05

23 UDAIPUR TSECL 03 10 132/66

kV …. …. …. …. …. ….

24 UDAIPUR TSECL 04 15 132/11

kV …. …. …. …. …. ….

25 UDAIPUR TSECL 05 10 66/33

kV

…. …. …. …. …. ….

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List 12: ICTs details of OTPC in North Eastern Region

SL. NO.

SUBSTATION AGENCY ICT NO.

MVA KV

RATIO MAKE TT NT

STEP PT

%AGE KV

1 PALATANA OTPC 01 125 400/132

kV BHEL 17 9 1.25 5 9

2 PALATANA OTPC 02 125 400/132

kV 17 9 1.25 5 9

Annexure IV: Substations in North Eastern Region

AGENCY 400KV 220 KV 132 KV &

66 KV TOTAL

POWER GRID

5 4 12 21

ARUNACHAL PRADESH

NIL 1 7 8

AEGCL 1 9 23 33 MANIPUR NIL NIL 10 10

MeECL 1 NIL 16 17 MIZORAM NIL NIL 6 6

NAGALAND NIL NIL 8 8 NEEPCO 1 2 4 7

NHPC NIL NIL 1 1 TSECL NIL NIL 13 13 OTPC 1 NIL NIL 1

TOTAL 9 14 82 125

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Annexure V: CAPABILITY CURVES OF VRIOUS GENERATORS IN NER GRID

Capability Curve 1: LTPS unit 5, 6, 7

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Capability Curve 2: NTPS UNIT 2 & 3

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Capability Curve 3: NTPS UNIT 4

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Capability Curve 4: NTPS UNIT 6

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Capability Curve 5: LTPS

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Capability Curve 6: NTPS

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Capability Curve 7: UMIUM ST I

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Capability Curve 8: UMIUM STAGE II

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Capability Curve 9: UMIUM STAGE III

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Capability Curve 10: UMIUM STAGE IV

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Capability Curve 11: AGBPP UNIT 5, 6, 7, 8 & 9

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Capability Curve 12: AGBPP UNIT 1, 2, 3 & 4

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Capability Curve 13: AGTPP

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Capability Curve 14: DOYANG HEP UNIT 1

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Capability Curve 15: KHANDONG HEP UNIT 2

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Capability Curve 16: KOPILI HEP UNIT 1

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Capability Curve 17: KOPILI HEP UNIT 2

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Capability Curve 18: KOPILI HEP ST II

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Capability Curve 19: RANGANADI HEP

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Capability Curve 20: LOKTAK HEP

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Capability Curve 21: ROKHIA UNIT 3, 4 & 6

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Capability Curve 22: ROKHIA & BARAMURA

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Capability Curve 23: OTPC PALATANA GTG

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Capability Curve 24: OTPC PALATANA STG

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Capabilty Curve 25: BgTPP Unit 1 and 2

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ANNEXURE VI: The AEGCL Gazette, Extraordinary, February 10, 2005

10.3.1 IN CHAPTER 9: FREQUENCY AND VOLTAGE MANAGEMENT

10.3.1.1 (9.1) Introduction

(a) This section describes the method by which all Users of the State Grid shall cooperate with SLDC in contributing towards effective control of the system frequency and managing the grid voltage.

(b) State Grid normally operates in synchronism with the North-Eastern Regional Grid

and NERLDC has the overall responsibility of the integrated operation of the North-Eastern Regional Power System. The constituents of the Region are required to follow the instructions of NERLDC for the backing down generation, regulating loads, MVAR drawal etc. to maintain the system frequency and the grid voltage.

(c) SLDC shall instruct SSGS to regulate Generation/Export and hold reserves of active

and reactive power within their respective declared parameters. SLDC shall also regulate the load as may be necessary to meet the objective.

(d) System voltages levels can be affected by Regional operation. The SLDC shall

optimise voltage management by adjusting transformer taps to the extent available and switching of circuits/ capacitors/ reactors and other operational steps. SLDC will instruct generating stations to regulate MVAr generation within their declared parameters. SLDC shall also instruct Distribution Licensees to regulate demand, if necessary.

10.3.1.2 (9.2) Objective The objectives of this section are as follows:

(a) To define the responsibilities of all Users in contributing to frequency and voltage management.

(b) To define the actions required to enable SLDC to maintain System voltages

and frequency within acceptable levels in accordance Planning and Security Standards of IEGC.

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10.3.1.3 (9.3) Frequency Management

The rated frequency of the system shall be 50 Hz and shall normally be regulated within the limits prescribed in IEGC Clause 4.6(b). As a constituent of North-Eastern Region, the SLDC shall make all possible efforts to ensure that grid frequency remain within normal band of 49.5 – 50.2Hz (Presently IEGC band is 49.7-50.2 Hz).

10.3.1.4 (9.4) Basic philosophy of control Frequency being essentially the index of load-generation balance conditions of the system, matching of available generation with load, is the only option for maintaining frequency within the desired limits. Basically, two situations arise, viz., a surplus situation and a deficit situation. The automatic mechanisms available for adjustment of load/generation are (i) Free governor action; (ii) Maintenance of spinning reserves and (iii) Under-frequency relay actuated shedding. These measures are essential elements of system security. SLDC shall ensure that Users of the State Grid comply with provisions of clause 6.2 of the IEGC so far as they apply to them. The SLDC in coordination with Users shall exercise the manual mechanism for frequency control under following situations:

10.3.1.5 (9.5) Falling frequency:

Under falling frequency conditions, SLDC shall take appropriate action to issue instructions, in coordination with NERLDC to arrest the falling frequency and restore it to be within permissible range. Such instructions may include dispatch instruction to SSGS and/or instruction to Distribution Licensees and Open access customers to reduce load demand by appropriate manual and/or automatic load shedding.

10.3.1.6 (9.6) Rising Frequency

Under rising frequency conditions, SLDC shall take appropriate action to issue instructions to SSGS in co-ordination with NERLDC, to arrest the rising frequency and restore frequency within permissible range through backing down hydel generation and thermal generation to the level not requiring oil support. SLDC shall also issue instructions to Distribution Licensees and Open access customers in coordination with NERLDC to lift Load shedding (if exists) in order to take additional load.

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10.3.1.7 (9.7) Responsibilities SLDC shall monitor actual Drawal against scheduled Drawal and regulate internal generation/demand to maintain this schedule. SLDC shall also monitor reactive power drawal and availability of capacitor banks. Generating Stations within AEGCL shall follow the dispatch instructions issued by SLDC.Distribution Licensees and Open access customers shall co-operate with SLDC in managing load & reactive power drawal on instruction from SLDC as required.

10.3.1.8 (9.8) Voltage Management

(a) Users using the Intra State transmission system shall make all possible efforts to ensure that the grid voltage always remains within the limits specified in IEGC at clause 6.2(q) and produced below:

(b) AEGCL Gridco and/or SLDC shall carry out load flow studies based on operational

data from time to time to predict where voltage problems may be encountered and to identify appropriate measures to ensure that voltages remain within the defined limits. On the basis of these studies SLDC shall instruct SSGS to maintain specified voltage level at interconnecting points. SLDC and AEGCL Gridco shall co-ordinate with the Distribution Licensees to determine voltage level at the interconnection points. SLDC shall continuously monitor 400/220/132kV voltage levels at strategic sub-stations to control System voltages.

(c) SLDC in close coordination with NERLDC shall take appropriate measures to control

System voltages which may include but not be limited to transformer tap changing, capacitor / reactor switching including capacitor switching by Distribution Licensees at 33 kV substations, operation of Hydro unit as synchronous condenser and use of MVAr reserves with SSGS within technical limits agreed to between AEGCL Gridco and Generators. Generators shall inform SLDC of their reactive reserve capability promptly on request.

Nominal Maximum Minimum

400 420 380

220 245 198

132 145 122

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(d) APGCL and IPPs shall make available to SLDC the up to date capability curves for all Generating Units, as detailed in Chapter 5.indicating any restrictions, to allow accurate system studies and effective operation of the Intra State transmission system. CPPs shall similarly furnish the net reactive capability that will be available for Export to / Import from Intra State transmission system.

(e) Distribution Licensees and Open access customers shall participate in voltage

management by providing Local VAR compensation (as far as possible in low voltage system close to load points) such that they do not depend upon EHV grid for reactive support.

10.3.1.9 (9.9) General

Close co-ordination between Users and SLDC, AEGCL Gridco and NERLDC shall exist at all times for the purposes of effective frequency and voltage management.