Transformers The main reason for generation of harmonics in a transformer could be poor insulation mechanical vibrations saturation of core fluctuating load poor insulation mechanical vibrations saturation of core fluctuating load ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Resistance of the two winding are equal None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding Resistance of the two winding are equal None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 3000 kVA 250 kVA 500 kVA 1000 kVA 3000 kVA 250 kVA 500 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine magnetising current and loss copper loss efficiency of the transformer magnetising current magnetising current and loss copper loss efficiency of the transformer magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses inductive coupling Uses electric coupling Uses capacitive coupling A static device Uses inductive coupling Uses electric coupling Uses capacitive coupling A static device ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. Above 40% 3-5% 15-30% 30-40% Above 40% 3-5% 15-30% 30-40% ANSWER DOWNLOAD EXAMIANS APP
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