Transformers In a transformer routine efficiency depends upon Supply frequency 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 ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Primary reactance is too much increased Magnetising current is abnormally high None of the listed here Permeability of core is increased Primary reactance is too much increased Magnetising current is abnormally high None of the listed here Permeability of core is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers A Buchholz relay can be installed on Air-cooled transformer Welding transformer Oil cooled transformer Auto transformer Air-cooled transformer Welding transformer Oil cooled transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Primary reactance is too much increased None of the listed here Core losses will be excessive Primary will draw large power Primary reactance is too much increased None of the listed here Core losses will be excessive Primary will draw large power ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer is always a high voltage winding is always a low voltage winding could either be a low voltage or high voltage winding None of these is always a high voltage winding is always a low voltage winding could either be a low voltage or high voltage winding None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The flux in the core of a single phase transformer is _____ None of the listed here Purely rotating one Partly alternating and partly rotating Purely alternating one None of the listed here Purely rotating one Partly alternating and partly rotating Purely alternating one ANSWER DOWNLOAD EXAMIANS APP
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