Transformers The maximum load that a power transformer can carry is limited by its dielectric strength of oil copper loss temperature rise voltage ratio dielectric strength of oil copper loss temperature rise voltage ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Cause voltage drop in the windings None of the listed here Decreases copper losses Increase copper losses Cause voltage drop in the windings None of the listed here Decreases copper losses Increase copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Resistance of the two winding are equal Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Breather Horn gaps Conservator Thermal overload relays Breather Horn gaps Conservator Thermal overload relays ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ Is increased None of the listed here Is decreased Remains unchanged Is increased None of the listed here Is decreased Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 500 Hz 2kVA, 200 Hz 2kVA, 400 Hz 2kVA, 50 Hz 2kVA, 500 Hz 2kVA, 200 Hz 2kVA, 400 Hz 2kVA, 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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