Three Phase Induction Motors The synchronous speed of a 3-phase induction motor having 20 poles and connected to a 50 Hz source is _____ 1000 rpm 300 rpm 1200 rpm 600 rpm 1000 rpm 300 rpm 1200 rpm 600 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ 50 Hz None of the listed here 25 Hz 60 Hz 50 Hz None of the listed here 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque in an induction motor depends on Square of supply voltage Rotor inductive reactance All of the listed here Frequency Square of supply voltage Rotor inductive reactance All of the listed here Frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of induction motor is made of Hollow Any of the listed here Flexible Stiff Hollow Any of the listed here Flexible Stiff ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Insertion of resistance in the rotor of an induction motor to develop a given torque Decreases the rotor current Rotor current becomes zero Increases the rotor current Rotor current remains same Decreases the rotor current Rotor current becomes zero Increases 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. Equal to None of the listed here Four times Two times Equal to None of the listed here Four times Two times ANSWER DOWNLOAD EXAMIANS APP
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