Electrical Engineering > GATE 2014 SET-3 > Transformers
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
Correct : b
Similar Questions
Which one of the following options represents possible voltage polarities in a single-phase two winding transformer? Here, Vp is the applied primary voltage, Ep...
When the winding c-d of the single-phase, 50 Hz, two-winding transformer is supplied from an AC current source of frequency 50 Hz, the rated voltage of 200 V (r...
In a single-phase transformer, the total iron loss is 2500 W at nominal voltage of 440 V and frequency 50 Hz. The total iron loss is 850 W at 220 V and 25 Hz. T...
Total Unique Visitors
Loading......