Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Thermal overload relays Breather Conservator Horn gaps Thermal overload relays Breather Conservator Horn gaps ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary current to primary current secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary current to primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ 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 Primary reactance is too much increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary through air None of these through cooling coil by the flux through air None of these through cooling coil by the flux ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer could either be a low voltage or high voltage winding is always a low voltage winding is always a high voltage winding None of these could either be a low voltage or high voltage winding is always a low voltage winding is always a high voltage winding None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure core loss copper loss insulation resistance total loss core loss copper loss insulation resistance total loss ANSWER DOWNLOAD EXAMIANS APP
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