Q. 46 An open circuit test is performed on 50 Hz transformer, using variable frequency
source and keeping V/f ratio constant, to separate its eddy current and hysteresis
losses. The variation of core loss/frequency as function of frequency is shown in
the figure
The hysteresis and eddy current losses of the transformer at 25 Hz respectively
are
(A) 250 W and 2.5 W
(B) 250 W and 62.5 W
(C) 312.5 W and 62.5 W
(D) 312.5 W and 250 W
Answer:(B)
Explanation:
Excellent