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Answer Posted / birinchi87
KVA is the Apparent Power rating which has two components: one is Active and another is Reactive. And KW is the Active Power rating. KW depends upon load power factor. Generally electrical equipments like Transformer are rated in KVA because KW is not constant. It depends on power factor but KVA doesn't depend on Load power factor.
KW/KVA=cos(phi)=power factor
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