Transformers Distribution transformers are generally designed for maximum efficiency around 90% load 50% load Zero load 25% load 90% load 50% load Zero load 25% load ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ 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 Magnetising current is abnormally high ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. Less than More than None of the listed here The same as Less than More than None of the listed here The same as ANSWER DOWNLOAD EXAMIANS APP
Transformers A shell-type transformer has None of these negligibly hysteresis losses high eddy current losses reduced magnetic leakage None of these negligibly hysteresis losses high eddy current losses reduced magnetic leakage ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 65% 95% 50% 80% 65% 95% 50% ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Moisture Gases Sludge Odour Moisture Gases Sludge Odour ANSWER DOWNLOAD EXAMIANS APP
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