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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 / manimaranmuthu.m
11KV PRIMARY CURRENT[HT]:
KW = KVA*PF
POWER [KW]= 1600*0.9
POWER = 1440 KW
POWER [KW]=√3*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[LT]:
WATTS = 1.732*V*I*PF
1440*1000 = 1.732*415*I*0.9
I = 2226 AMPERE
| Is This Answer Correct ? | 29 Yes | 13 No |
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