Transformers The approximate efficiency of a large transformer is 65% 50% 80% 95% 65% 50% 80% 95% ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 15-30% Above 40% 3-5% 30-40% 15-30% Above 40% 3-5% 30-40% ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Power factor of load Load current Supply frequency Both power factor and load current Power factor of load Load current Supply frequency Both power factor and load current ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine core losses eddy current losses copper losses hysteresis losses core losses eddy current losses copper losses hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary through cooling coil None of these through air by the flux through cooling coil None of these through air by the flux ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it decreases load remains constant None of these load on it increases load on it decreases load remains constant None of these load on it increases ANSWER DOWNLOAD EXAMIANS APP
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