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Government Of Assam Power Assam Electricity Grid Corporation Ltd

Substations and Transmission line
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AEGCL operates and maintains EHV sub-stations and Transmission Lines from 66 KV and above. The existing sub-stations with their capacities are as follows-

 

  1. Extra High Voltage Sub-stations
  2. Transmission Lines

EHV Sub-stations:

 
Sl. No.Name of Sub-stationVoltage Level (KV)Present Installed
Transformer Capacity (MVA)		                             Remarks                                
1.Pailapool132/33(1x16+2x10)=36 
2.Srikona132/332x25=50 
3.Panchgram (New)132/332x25=50 
Panchgram (Old)132/332x10=20 
4.Durlavchharra132/331x16=16 
Durlavchharra132/333x3.5(1-Ø)= 10.5 
5.Haflong132/332x10=20 
6.Umrangshu (Khandong)132/33(1x25+1x16)=41 
7.Margherita (Ledo)132/332x25=50 
8.Doomdooma66/333x10=30 
9.Rupai132/332x25=50 
10.Tinsukia220/1322x100=200 
132/662x20=40 
132/332x40=80 
66/333x20=60 
11.Dibrugarh132/661x20=20 
132/332x31.5=63 
66/33(2x10+1x5)=25 
12.Behiating (Dibrugarh)132/332x40=80 
13.Moran132/332x16=32 
14.Namrup220/1322x50=100 
132/66(2x25+1x20)=70 
132/331x31.5=31.5 
66/333x10(1-Ø)= 30 
 15.  Nazira  132/33 2x25=50 
 66/33 2x16=32 
 16. Sonari 132/33 2x25=50 
 17. Bokakhat132/33 2x16=32 
 18. Sibsagar 132/33 2x16=32 
 19. Majuli 132/33 4x5.5(1-Ø) 
 20. Jorhat 132/33 2x25+1x16=66 
 21.   Golaghat  132/33 2x25=50 
 66/33 2x10=20 
 66/33 1x6.3=6.3 
 22.   Mariani   220/1322x100=200 
 132/66 2x20=40 
 66/33 2x16=32 
 23. Samaguri 220/132 1x100+2+50=200 
132/332x25+1+16=66 
24.Nagaon132/332x25=50 
25.Dhemaji132/332x16=32 
 26. North-Lakhimpur Sub-Station 132/33 2x25=50 
 27. Biswanath Charali Sub-Station 132/33 2x16=32 
 28. Balipara Sub-Stn.(AIDC)  132/33 1x16=16 
 29. Gohpur Sub-Station  132/33 2x25=50 
 30. Depota Sub-Station  132/33 2x31.5=63 
 31. Balipara Sub-Station (PGCIL) 220/132 1x50=50 Balipara Sub-station belongs to PGCIL. It is 400 KV Sub-station. One 220/132 KV, 50MVA Transformer owned by AEGCL.
 32. Rowta Sub-Station  132/33 2x25=50 
 33. Sipajhar Sub-Station  132/33 2x16=32 
 34.  Bokajan Sub-Station   132/33 1x16=16 
  66/33 3x5=15 
 35.  Diphu Sub-Station   132/33 2x16=32 
66/33 2x5=10 
 36. Lanka Sub-Station  132/33 2x25=50 
 37. Jagiroad Sub-Station  132/33 2x25=50 
 38. Chandrapur Sub-Station  132/33 1x30+1x16=46 
 39. Narengi Sub-Station  132/33 2x25=50 
 40. Kahilipara Sub-Station  132/33 1x31.5+2x30+2x40=171.5 
 41.  Sarusajai Sub-Station  220/132 3x100=300 
 132/33 3x31.5=94.5 
42.Jawaharnagar GIS sub-station220/33 2x50=100 
43. Kukurmara (Mirza) Sub-Station 400/220 2x315=630 
220/132 2x50=100 
44.Gossaigaon Sub-Station 132/33 2x16=32 
45.Gauripur Sub-Station 132/33 2x16=32 
46.Dhaligaon Sub-Station 132/33 2x25=50 
47.Barnagar Sub-Station 132/33 2x25=50 
48.Nalbari Sub-Station 132/33 1x40+1x16=56 
49.Rangia Sub-Station 132/33 2x25=50 
50. Boko Sub-Station 220/132 1x50=50 
132/33 1x40+1x16=56 
51.Amingaon Sub-Station 132/33 2x31.5+1x40=103 
52. Agia Sub-Station 220/132 1x100+1x50=150 
132/33 1x12.5+1x40=52.5 
53.APM (Jogighopa) S/Station 132/33 1x16+1x12.5=28.5 
54. BTPS Sub-Station 220/132 1x160+1x80=240 
132/33 1x16=16 
55.Capital (Dispur) Sub-Station132/11 2x16=32 

Transmission Lines:

 
Sl. No.Name of Transmission LinesVoltage Level (KV)Present Length (Ckt. km.)                             Remarks                            
A.400 KV Transmission Line
1.LILO of one circuit of Pallatana-Bongaigaon D/C line at 400/220/132 kV Kukurmara (Azara) sub-station4007 
 Total 7 
B.220 KV Transmission Line   
 1.Mariani - Samaguri S/C line (Ckt-I)220168.10 
 2.Mariani - Samaguri S/C line (Ckt-II)220169.10 
 3.Samaguri - Sarusajai D/C line220259.40 
 4.Samaguri - Tezpur D/C line220111.00 
 5.BTPS - Agia - Sarusajai D/C line220397.00 
 6.LILO of BTPS - Sarusajai line at Kukurmara S/S2202.14 
 7.LILO of one circuit of 220 kV D/C BTPS - Agia - Sarusajai line at Boko S/S2200.85 
 8.Langpi - Sarusajai D/C line220217.40 
 9.Kathalguri - Tinsukia D/C line22049.30 
 10.Tinsukia - Namrup D/C line22079.50 
 11.LILO of one circuit of 220 kV / Sarusajai - Samaguri line at Jawaharnagar S/S2200.80 
 Total 1454.60 
 C. 132 KV Transmission Line
   
1.Gauripur - Gossaigaon S/C line13262.00 
2.Gossaigaon - Dhaligaon S/C line13265.00 
3.Dhaligaon - BTPS D/C line13240.00 
4.Dhaligaon - APM (Jogighopa) S/C line13237.00 
5.Dhaligaon - B.R.P.L. S/C line1320.60 
6.Dhaligaon - Rangia S/C line132123.40 
7.Dhaligaon - Barnagar - Rangia S/C line132124.336 
8.LILO of Dhaligaon - Barnagar - Rangia S/C line at Nalbari S/S1321.00 
9.Rangia - Kahilipara D/C line13293.20 
10.LILO of 132 kV 2nd Ckt. Rangia - Kahilipara line at Sishugram sub-stn.1323.00 
11.Amingaon (Sishugram) - Sipajhat S/C line13227.479 
12.Rangia - Rowata - Depota S/C line132180.00 
13.Rangia - Sipajhar - Rowata - Depota S/C line132146.739 
14.Depota -Gohpur - North Lakhimpur D/C line132362.84 
15.LILO of one circuit of 132 kV D/C Depota - Gohpur line at Balipara S/S13226.42 
16.LILO of one circuit of 132 kV D/C Depota - Gohpur line at Biswanath Charali S/S1323.43 
17.North Lakhimpur - Dhemaji S/C line13263.00 
18.North Lakhimpur - Majuli S/C line13244.70 
19.Margherita - Tinsukia D/C line132106.00 
20.Namrup - Tinsukia - Dibrugarh S/C line13291.94 
 21. Lakwa - Dibrugarh S/C line 132 67.32 
 22. LILO of 132 kV S/C Lakwa - Dibrugarh line at Moran S/S 132 7.96 
 23. LILO of 132 kV S/C Lakwa - Dibrugarh line at Bihiating S/S 132 0.99 
 24. Namrup - Lakwa D/C line 132 120.00 
 25. LILO of 132 kV S/C Lakwa - Namrup line at Sonari S/S 132 8.508 
 26. Lakwa - Nazira D/C line 132 42.64 
 27. Lakwa - Mariani S/C line 132 80.00 
 28. Nazira - Sibsagar S/C line 132 13.335 
 29. Nazira - Jorhat S/C line on D/C tower 132 68.518 
 30. Mariani - Jorhat D/C line 132 38.90 
 31. Mariani - Dimapur (Assam portion) S/C interstate line 132 112.00 
 32. Mariani - Mokakchang (Assam portion) S/C interstate line 132 18.80 
 33. Jorhat (Gormur) - Bokakhat S/C line 132 86.197 
 34. LILO of 132 kV S/C Mariani - Dimapur line at Golaghat S/S 132 10.40 
 35. LILO of 132 kV S/C Mariani - Dimapur line at Bokajan S/S 132 5.46 
 36. Lanka - Diphu S/C line 132 71.614 
 37. Samagori - Lanka S/C line on D/C tower 132 120.91 
 38. Samaguri - Nagaon line 132 41.92 
 39. Chandrapur - Jagiroad S/C line 132 34.50 
 40. Jagiroad - H.P.C.S/C line 132 4.50 
 41. Kahilipara - Chandrapur D/C line 132 48.00 
 42. LILO of one circuit Kahilipara - Chandrapur D/C line at Narangi S/S 132 0.20 
 43. Kahilipara - Sarusajai D/C line (I & II) 132 7.00 
 44. Sarusajai - Kahilipara D/C line (III & IV) 132 7.86 
 45. Kahilipara - Umtru (Assam portion) D/C interstate line 132 12.60 
 46. Umium St.IV - Sarusajai (Assam portion) D/C interstate line 132 18.20 Route length 8.8 Km.
 47. Panchgram - H.P.C.S/C line 132 1.36 
 48. Panchgram - Khlehriet (Assam portion) S/C interstate line 132 30.02 
 49. LILO of 132 kV S/C Panchgram - Pailapool line at Silchar (Srikona) S/S

 132 1.30 
 50. Panchgram - Pailapool S/C line 132 52.60 
 51. Pailapool - Jiribam (Assam portion) S/C interstate line 132 15.00 
 52. Panchgram - Durllavcharra S/C line 132 45.30 
 53. Durllavcharra - Dharmanagar (Assam portion) S/C interstate line 132 26.00 
 54.Halflong (NEEPCO) - Lower Halflong (AEGCL) S/C line132 1.20 
 Total 2823.20 
 D. 66 KV Transmission Line
   
 1.Tinsukia - Doomdooma S/C line 66 25.00 
 2. Agia - Lakhipur (up to 183 loc.) S/C line 66 34.00 
 3. Bokajan - Diphu S/C line on D/C tower 66 39.00 
 4. Mariani - Nazira D/C line. 66 108.00 
 5. Mariani - Golaghat D/C line. 66 80.00 
 6. Golaghat - Bokajan D/C line 66 128.00 
 7. Nazira - Namrup D/C line 66 148.00 
 8. Namrup - Tinsukia D/C line 66 71.00 
 9. Namrup - F.C.I. D/C line 66 6.00 
 10. Tinsukia - Dibrugarh S/C line 66 48.00 
 11. Bokajan-Dimapur (Assam portion) S/C line 66 8.00 
  Total  613.00 
Substation and Transmission line