Transformers Primary winding of a transformer is always a low voltage winding None of these could either be a low voltage or high voltage winding is always a high voltage winding is always a low voltage winding None of these could either be a low voltage or high voltage winding is always a high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers Harmonics in transformer result in increased core losses increased I2R losses magnetic interference with communication circuits All of the listed here increased core losses increased I2R losses magnetic interference with communication circuits All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers We can find _______of the transformer with open circuit test. Total equivalent leakage reactance Copper losses Total equivalent resistance Turn ratio Total equivalent leakage reactance Copper losses Total equivalent resistance Turn ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around Zero load 25% load 50% load 90% load Zero load 25% load 50% load 90% load ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ 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 Primary reactance is too much increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 95% 50% 65% 80% 95% 50% 65% ANSWER DOWNLOAD EXAMIANS APP
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