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Answer Posted / syed arish ali
kw means that it is the power deliverd to the load. where
as the kva is the power can be meet the load demand. so
that kva is not with respect to load.
if we simply says kw=kva*power factor.
so that only alternators and transformers(giving supply,not
respect to load) specified in kva and load(motors)
specified in kw.
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