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why transformer ratings in kva?
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Answer Posted / elango
copper loss depends on current(I)iron loss depends upon
voltage(V). hence the total loss in a transformer depends
upon volt-ampere(VA)only and not on the phase angle between
voltage and current i.e,it is independ of load power
factor.that is why the rating of a transformer is given in
KVA and not in kw.
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