1.why motor rating in kw instead of KVA?
2.why alternators rating in KVA instead of KW?.
3.why transformer rating in KVA instead of KW?.

Answers were Sorted based on User's Feedback



1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why tra..

Answer / rabindra kumar

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

Is This Answer Correct ?    5 Yes 3 No

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why tra..

Answer / sanju

All depend on power factor.

Is This Answer Correct ?    0 Yes 0 No

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why tra..

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.

Is This Answer Correct ?    0 Yes 0 No

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why tra..

Answer / brd ganesh

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

Is This Answer Correct ?    0 Yes 2 No

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why tra..

Answer / ritika

motor manufacture ki marji.
alternator manufacture ki marji.

Is This Answer Correct ?    4 Yes 11 No

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why tra..

Answer / prasanna

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

Is This Answer Correct ?    1 Yes 9 No

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