A 2 kVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer will occur when the total loss is:
A 2 kVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer will occur when the total loss is: Correct Answer 300 W
The efficiency of a transformer will be maximum when copper losses are equal to iron losses. Iron losses include both hysteresis and eddy current losses.
Copper losses = 250 W
Iron losses = 150 W
At maximum efficiency, copper losses = 150 W
Total losses = 150 + 150 = 300 W
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Feb 20, 2025