A single-phase transformer rated for 220/240 V, 50Hz operates at no load at 220 V, 40 Hz.
This frequency operation at rated voltage results in which one of the following?
A. Increase of both eddy-current and hysteresis losses.
B. Reduction of both eddy-current and hysteresis losses.
C. Reduction of hysteresis loss and increase in eddy-current loss.
D. Increase of hysteresis loss and no change in the eddy-current loss
Show Answer
Answer: D
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