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 The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary current to primary current secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary current to primary current secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Transformers The dielectric strength of transformer oil is expected to be 100 kV lkV 330 kV 33 kV 100 kV lkV 330 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High thermal conductivity Low hysteresis loss Mechanical strength High permeability High thermal conductivity Low hysteresis loss Mechanical strength High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ Low voltage winding Either low or high voltage winding None of the listed here High voltage winding Low voltage winding Either low or high voltage winding None of the listed here High voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. Magnetically None of the listed here Electrically and magnetically Electrically Magnetically None of the listed here Electrically and magnetically Electrically ANSWER DOWNLOAD EXAMIANS APP
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