IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?
Answer Posted / kshirod
all are wrong
am telling you a simple method
always follow the thumb rule which is 500kva*1.39=695amp
bt every transformer can take extra 10% amp load
so you can use 800 amp mdo typae 3 pole l&t make acb in the
lt side
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