Answer / rabindra kumar

because motor gives mechanical power as output, where as transformer
n alternator give electrical power as output.

Answer / sanju

All depend on power factor.

Answer / jagu

Transformer is independent of pf.Hence the transformer rating is always expressed in KVA.
In Motor the pf is dependent on percentage loading & hence expressed in KW.

Answer / brd ganesh

All ac sources are rated in kva where alternator
&transformer and all ac loads are rated in kw
where motor

Answer / ritika

motor manufacture ki marji.
alternator manufacture ki marji.

Answer / prasanna

becoz iron losses depends on voltage and copperlosses depends on current.....so the motor rating is in KVA

Dear Sir I am living in Jaipur Rajasthan  now I did complete my b tech degree in electrical engineering in 2012  Sir how I gate certificate of competency for electrical supervisor

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Testing procedure of DG alternator stability test

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