Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 20 Hz 50 Hz 200 Hz 2 Hz 20 Hz 50 Hz 200 Hz 2 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 0.5 0.2 1 Practically zero 0.5 0.2 1 Practically zero ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a 3 phase induction motor, the rotor speed is _____ the synchronous speed. Greater than Smaller than None of the listed here Equal to Greater than Smaller than None of the listed here Equal to ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to (1-S) × rotor input None of the listed here S × rotor input (1+S) × rotor input (1-S) × rotor input None of the listed here S × rotor input (1+S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For the same kVA rating, the leakage flux in induction motor is _______ that of transformer. Less than About the same None of the listed here More than Less than About the same None of the listed here More than ANSWER DOWNLOAD EXAMIANS APP
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