Three Phase Induction Motors The rotor of an induction motor runs at Below synchronous speed Any of the above Above synchronous speed Synchronous speed Below synchronous speed Any of the above Above synchronous speed Synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel cage induction motor is changed by Pole changing None of the listed here Cascade control Rheostatic control Pole changing None of the listed here Cascade control Rheostatic control ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the air gap between the rotor and stator of a 3-phase induction motor is increased, then_______ Leakage reactances are decreased No load current is decreased Leakage reactances are increased None of the listed here Leakage reactances are decreased No load current is decreased Leakage reactances are increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor Always revolves in the direction of stator flux Insufficient data None of the listed here Always revolves in the direction opposite to stator flux Always revolves in the direction of stator flux Insufficient data None of the listed here Always revolves in the direction opposite to stator flux ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ Supply frequency Phase sequence of supply voltage Magnitude of supply voltage Number of poles Supply frequency Phase sequence of supply voltage Magnitude of supply voltage Number of poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 40% None of the listed here 90% 65% 40% None of the listed here 90% 65% ANSWER DOWNLOAD EXAMIANS APP
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