why transformer are rated in kva.

Answer Posted / prasanth p.s

copper loss depend on current and core loss depend on voltage
there for total loss depend on voltage and current not on powerfactor .in other equpment like motor total loss depend on
powerfactor ie kw=(v*i*pf)/1000 .there for motor rated in kW.but tranformer rated in kVA because kVA=(v*i)/1000

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