Transformers The efficiency of a transformer will be maximum when ______ Copper loss is equal to constant loss None of the listed here Leakage reactance of the two winding Resistance of the two winding are equal Copper loss is equal to constant loss None of the listed here Leakage reactance of the two winding Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Boo Zoom Magnetostriction Hum Boo Zoom Magnetostriction Hum ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at full load at no load at 50% full load at 80% full load at full load at no load at 50% full load at 80% full load ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Primary reactance is too much increased Magnetising current is abnormally high Permeability of core is increased None of the listed here Primary reactance is too much increased Magnetising current is abnormally high Permeability of core is increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine None of these all-day efficiency temperature stray losses None of these all-day efficiency temperature stray losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Mutual induction Self induction Dynamic induction Static induction Mutual induction Self induction Dynamic induction Static induction ANSWER DOWNLOAD EXAMIANS APP
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