How much current can 11KV line carry? What are the
formulae used to calculate current across both side of
transformer? Moreover I need to know can I connect 33KV
line with transformer of 1600KVA? Details are: V=415,
Pf= .9
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Answer Posted / arulkumaran
KW = KVA*PF
KW = 1600*0.9
KW = 1440
11KV PRIMARY CURRENT=
KW = 1.732*KV*I*PF root(3) = 1.732
1440 = 1.732*11*I*0.9
1440/1.732*11*0.9 = I
I = 83.98 AMPERE
415V SECONDRY CURRENT=
WATTS = 1.732*V*I*PF
1440000 = 1.732*415*I*0.9
I = 2226 AMPERE
| Is This Answer Correct ? | 80 Yes | 20 No |
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