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What is the criteria in selecting Air circuit breaker(ACB) &
Moulded case circuit breaker(MCCB) for a particular range?
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Answer Posted / e.r k.k dash
Suppose there is 750 kva transformer.then acb can choosen by following foamula=kva*1.35=amp
750*1.35=1012.50 amp
So next higher range is chossen.that is 1250 4 pole with high breaking capacity.
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