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Motor also having losses, we call KW rating. In
transformer and generator having losses but we call KVA
Rating why?
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Answer Posted / n.chandra shekar
transformer core lose find by using apply only rated voltage
and copper lossees find out by applying full load current,so
we obtaian exact performance in case motor added a
rotational losees so that it will measuredin kw.tranformer
measured in kva it is fixed .negligible p.f
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