Three Phase Induction Motors The induction motor has lagging power factor during Starting only Operation only Both starting and operation None of the listed here Starting only Operation only Both starting and operation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 2 to 5 % None of the listed here 20 to 30 % 10 to 20 % 2 to 5 % None of the listed here 20 to 30 % 10 to 20 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ (S-1) × rotor input (1+S) × rotor input (1-S) × rotor input S × rotor input (S-1) × rotor input (1+S) × rotor input (1-S) × rotor input S × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Insertion of resistance in the rotor of an induction motor to develop a given torque Increases the rotor current Rotor current becomes zero Decreases the rotor current Rotor current remains same Increases the rotor current Rotor current becomes zero Decreases the rotor current Rotor current remains same ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The cogging of an induction motor can be avoided by Using DOL starter Proper ventilation Having number of rotor slots more or less than the number of stator slots Auto transformer starter Using DOL starter Proper ventilation Having number of rotor slots more or less than the number of stator slots Auto transformer starter ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 50 Hz 200 Hz 20 Hz 2 Hz 50 Hz 200 Hz 20 Hz 2 Hz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS