Transformers Which of the following insulating materials can withstand the highest temperature safely? Asbestos Glass fibre Cellulose Mica Asbestos Glass fibre Cellulose Mica ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means interchanging two supply phases for quick stopping starting the motor on load which is more than the rated load locking of rotor due to harmonics pulling the motor directly on line without a starter interchanging two supply phases for quick stopping starting the motor on load which is more than the rated load locking of rotor due to harmonics pulling the motor directly on line without a starter ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be mechanical vibrations fluctuating load saturation of core poor insulation mechanical vibrations fluctuating load saturation of core poor insulation ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be cool as there is no secondary current hot because primary will carry heavy current none of above will happen hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current hot because primary will carry heavy current none of above will happen hot because of heavy iron losses taking place in it due to high flux density ANSWER DOWNLOAD EXAMIANS APP
Transformers A shell-type transformer has None of these high eddy current losses negligibly hysteresis losses reduced magnetic leakage None of these high eddy current losses negligibly hysteresis losses reduced magnetic leakage ANSWER DOWNLOAD EXAMIANS APP
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