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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 / suhailpro
Primary side voltage be 11KV,
Transformer's capacity= 1000KVA
Real power= Apparent*Power factor
KW=KVA*Power factor
if Power factor = 0.95
Power= 1000*0.95
Power=950KW
We also know,
Power(KW)=(root 3)*(KV)*I*Power factor
950=1.732*11*0.95*I
I(Current)= 49.7A
Secondary Voltage Be 433V
We know that,
Power(watts)=(root 3)*V*I*Power factor
Power=950KW=950000W
950000=1.732*433*I*0.95
I= 1333.4 A
| Is This Answer Correct ? | 9 Yes | 7 No |
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