For a certain load i need 100kw load ,In that case what
rating mccb should i use?
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Answer Posted / kalyan sharma
for 100 kw we will use 3 phase supply inplace of single
phase.
use formula p= 1.732 vi cosphi
100= 1.732*0.415*0.8*I
I = 174 amp
we always use current rating of the mccb is 1.5 times of
full load current so we can use 250 AMPs MCCB.3P/4P.
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