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 / shanmugam
Basically, transformer losses always depending the rated
voltages & rated current. Because the core losses
calculated by open circuit method with full rated voltages
& the copper losses calculating by short circuit method
with full rated current.The losses of transformer is
depending the voltages(V) & current(A).Hence, we saying the
transformer capacity in KVA. The above not in motor
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