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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 / ashok kumar hudda
hey guys its simple yr
we say that transformers main aim is to maintain constant flux
so if we reduce the frequency for given size of transformer then we have to reduce the voltage to maintain constant flux so due to reduction in voltage KVA also decrease so we can say that KVA is directly proportional to frequency
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