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How does frequency affect KVA rating of a transformer?
If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz
frequency then how will its KVA rating change?
a-increase
b-decrease
c-remains same
Also explain why do u think like that.
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Answer Posted / shaikh
Frequency is directly proportional to induced voltage of transformer (v=4.44NFphi). if you decrease frequency KVA will decrease and vice versa, because for the same rated voltage flux is also decreased and flux area of t/f decreases.
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