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How does Transformer efficiency changes as load increases?

February 6, 2018 by Vishav

DWQA Questions › Category: Transformer › How does Transformer efficiency changes as load increases?
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Vishav asked 5 years ago
1 Answers
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admin Staff answered 5 years ago

The efficiency of a transformer changes with changing load. To understand this, first we have to remember that what is efficiency?

So efficiency = output/(output + losses),

When the transformer is on no load, there is only core losses because at no load copper losses are almost negligible. But ad load increases, copper loss in the system also increases, so efficiency varies with load.

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