Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 μH 8 μH 4 μH 2 mH 2 μH 8 μH 4 μH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Conservator Buchholz relay Exciter Breather Conservator Buchholz relay Exciter Breather ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer is always made on ______ 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 Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The hum in a transformer is mainly attributed to mechanical vibrations oil in the transformer magnetostriction load changes mechanical vibrations oil in the transformer magnetostriction load changes ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means locking of rotor due to harmonics pulling the motor directly on line without a starter starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping locking of rotor due to harmonics pulling the motor directly on line without a starter starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 1000 kVA 3000 kVA 500 kVA 250 kVA 1000 kVA 3000 kVA 500 kVA 250 kVA ANSWER DOWNLOAD EXAMIANS APP
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