Answer Posted / tank

The transformer is an apparatus which receives the power in
VA,KVA or MVA rating depending upon the capacity of the
transformer and it transforms/supplies the power under same
rating to a particular load when it is connected to a
transformer.In this process the power factor of the
connected load decides the KW rating(KVA X P.F = KW).Hence
transformer rating is never given in KW but always in VA,
KVA or MVA at manufacturing stage as there is uncertainity
of the type of the load and power factor to be connected
with the transformer.

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