Electrical Engineering > GATE 2013 SET-3 > Transformers
A single-phase transformer has no-load loss of 64 W, as obtained from an open-circuit test. When a
short-circuit test is performed on it with 90% of the rated currents flowing in its both LV and HV
windings, the measured loss is 81 W. The transformer has maximum efficiency when operated at
Correct :
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......