Transformers Which of the following property is not necessarily desirable in the material for transformer core? Low hysteresis loss High permeability Mechanical strength High thermal conductivity Low hysteresis loss High permeability Mechanical strength High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? All of these Overfluxing protection Buchholz relay Overcurrent protection All of these Overfluxing protection Buchholz relay Overcurrent protection ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 1.5 MVA 15 MVA 5 MVA 50 MVA 1.5 MVA 15 MVA 5 MVA 50 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Increase copper losses Cause voltage drop in the windings Decreases copper losses None of the listed here Increase copper losses Cause voltage drop in the windings Decreases copper losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The dielectric strength of transformer oil is expected to be 100 kV 33 kV lkV 330 kV 100 kV 33 kV lkV 330 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Load current Power factor of load Both power factor and load current Supply frequency Load current Power factor of load Both power factor and load current Supply frequency ANSWER DOWNLOAD EXAMIANS APP
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