Transformers The efficiencies of transformers compared with that of electric motors of the same power are somewhat smaller much smaller much higher about the same somewhat smaller much smaller much higher about the same ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same kVA rating same efficiency same number of turns on the secondary side. same polarity same kVA rating same efficiency same number of turns on the secondary side. same polarity ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss copper loss efficiency magnetising current magnetising current and loss core loss copper loss efficiency magnetising current magnetising current and loss ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ Either low or high voltage winding High voltage winding Low voltage winding None of the listed here Either low or high voltage winding High voltage winding Low voltage winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Load current Power factor of load Both power factor and load current Supply frequency Load current Power factor of load Both power factor and load current Supply frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are friction and windage losses magnetic losses hysteresis and eddy current losses copper losses friction and windage losses magnetic losses hysteresis and eddy current losses copper losses ANSWER DOWNLOAD EXAMIANS APP
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