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 2 Hz 200 Hz 20 Hz 50 Hz 2 Hz 200 Hz 20 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For the same kVA rating, the leakage flux in induction motor is _______ that of transformer. None of the listed here More than About the same Less than None of the listed here More than About the same Less than ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In medium sized induction motor, the slip is generally around 4 % 0.04 % 0.4 % 14% 4 % 0.04 % 0.4 % 14% 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 starting torque of an induction motor is maximum when rotor resistance per phase is _____ rotor reactance / phase. Four times Two times Equal to None of the listed here Four times Two times Equal to None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For higher efficiency of 3-phase induction motor, the slip should be As small as possible Large 1 Very large As small as possible Large 1 Very large ANSWER DOWNLOAD EXAMIANS APP
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