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Sub Station Short Circuit Current Capacity

 

Sub Station Capacity & Short Circuit Current Capacity:

As per GERC

VoltageSub Station CapacityShort Circuit Current
400 KVUp to 1000 MVA40 KA  (1 to 3 Sec)
220 KVUp to 320 MVA40 KA  (1 to 3 Sec)
132 KVUp to 150 MVA32 KA  (1 to 3 Sec)
66 KVUp to 80 MVA25 KA  (1 to 3 Sec)
33 KV1.5 MVA to 5 MVA35 KA (Urban) (1 to 3 Sec)
11 KV150 KVA to 1.5 MVA25 KA (Rural) (1 to 3 Sec)
415 V6  KVA to 150 KVA10 KA  (1 to 3 Sec)
220 VUp to 6 KVA6 KA  (1 to 3 Sec)

 Sub Station Capacity & Short Circuit Current Capacity:

As per Central Electricity Authority

VoltageSub Station CapacityShort Circuit Current
765 KV

4500 MVA

31.5 KA for 1 Sec
400 KV

1500 MVA

31.5 KA for 1 Sec
220 KV

500 MVA

40 KA for 1 Sec
110/132 KV

150 MVA

40 KA or 50 KA for 1 Sec
66 KV

75 MVA

40 KA or 50 KA for 1 Sec

 

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