Transformers Leakage flux in a transformer occurs because Transformer is not an efficient device Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator Transformer is not an efficient device Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of colling a power transformer is Natural air cooling Air blast cooling Oil cooling Any of the listed here Natural air cooling Air blast cooling Oil cooling Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers We can find _______of the transformer with open circuit test. Turn ratio Total equivalent leakage reactance Copper losses Total equivalent resistance Turn ratio Total equivalent leakage reactance Copper losses Total equivalent resistance ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be fluctuating load saturation of core mechanical vibrations poor insulation fluctuating load saturation of core mechanical vibrations poor insulation ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are friction and windage losses hysteresis and eddy current losses magnetic losses copper losses friction and windage losses hysteresis and eddy current losses magnetic losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer is always made on ______ High voltage winding Either low or high voltage winding Low voltage winding None of the listed here High voltage winding Either low or high voltage winding Low voltage winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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