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A single-phas...

Question

A single-phase transformer when supplied from 220V, 50 Hz has eddy current loss of 50 W. If the transformer is connected to a voltage of 330 V, 50 Hz, the eddy current loss will be

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Solution

$P_{e} \propto V^{2} P_{e} (a t 330 V) = {(\frac{330}{220})}^{2} \times 50 = 112.5 W$

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