Transformers Natural air cooling is generally restricted for transformers up to 15 MVA 1.5 MVA 5 MVA 50 MVA 15 MVA 1.5 MVA 5 MVA 50 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine copper loss magnetising current and loss magnetising current efficiency of the transformer copper loss magnetising current and loss magnetising current efficiency of the transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 95% 65% 50% 80% 95% 65% 50% ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 900 V 9 V 0.9 V 90 V 900 V 9 V 0.9 V 90 V ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure core loss total loss copper loss insulation resistance core loss total loss copper loss insulation resistance ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has All of the listed here High permeability High silicon content Low hysteresis loss All of the listed here High permeability High silicon content Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
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