Three Phase Induction Motors A 3 phase induction motor is running at 2% slip. If the input to rotor is 1000 W, then mechanical power developed by the motor is _______ 980 W 20 W 200 W 500 W 980 W 20 W 200 W 500 W ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Insertion of resistance in the rotor of an induction motor to develop a given torque 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 Decreases the rotor current 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 S × rotor input (1+S) × rotor input (1-S) × rotor input (S-1) × rotor input S × rotor input (1+S) × rotor input (1-S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors DOL starting of induction motors is usually restricted to Variable speed motors High horsepower motors Low horsepower motors High speed motors Variable speed motors High horsepower motors Low horsepower motors High speed motors ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ None of the listed here Short circuited Open circuited Supplying a variable resistive load None of the listed here Short circuited Open circuited Supplying a variable resistive load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. high resistance High reactance Low resistance Large slip high resistance High reactance Low resistance Large slip ANSWER DOWNLOAD EXAMIANS APP
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