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how you can select circuit breaker for 2000kva transformer?
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Answer Posted / gaurang
As per Equation
P=route 3 * V *I* cos phi
I=KVA/ rout 3 * V
So for 2000 KVA Transformer and considering Volatge 415 V.
I=2000/1.732 * 0.415
I=2782 A
Considering the breaker rated capacity selection above 2782
A as per Mfg. std.
Circuit breaker capacity will be of 3200 A.
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