Transformers Sumpner's test is conducted on transformer to determine Temperature All day efficiency Stray losses None of the listed here Temperature All day efficiency Stray losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Magnetising current is abnormally high Primary reactance is too much increased Permeability of core is increased None of the listed here Magnetising current is abnormally high Primary reactance is too much increased Permeability of core is increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The dielectric strength of transformer oil is expected to be lkV 330 kV 33 kV 100 kV lkV 330 kV 33 kV 100 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Copper loss Eddy current loss Iron losses Leakage reactance Copper loss Eddy current loss Iron losses Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 30-40% 3-5% Above 40% 15-30% 30-40% 3-5% Above 40% 15-30% ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as ringing zoom hum buzz ringing zoom hum buzz ANSWER DOWNLOAD EXAMIANS APP
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