What are the losses in the transformer? Explain why the rating of transformer in KVA not in KW.

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written 3.0 years ago by

teamques10 ★ 66k

• modified 3.0 years ago

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written 3.0 years ago by

teamques10 ★ 66k

Losses in a transformer are:

(1) Iron losses: Due to setting of hysteresis and eddy current in iron core.

(2) $C_u$ losses: Due to resistance of primary and secondry windings.

Transformers are rated in kVA and not in kW because load on them may vary and hence power factormay vary too.

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