Transformers The efficiency of a transformer will be maximum when ______ 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 Copper loss is equal to constant loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be switched fused shorted open switched fused shorted open ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine magnetising current and loss efficiency of the transformer copper loss magnetising current magnetising current and loss efficiency of the transformer copper loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has Low hysteresis loss High silicon content All of the listed here High permeability Low hysteresis loss High silicon content All of the listed here High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Produces mutually induced emf Helps in transfer of energy Is negligible at full load Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Helps in transfer of energy Is negligible at full load Is minimised by interleaving the primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustment in both primary and secondary Adjustment in primary voltage Adjustments in secondary voltage None of the listed here Adjustment in both primary and secondary Adjustment in primary voltage Adjustments in secondary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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