Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to 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 (1-S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ 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 Supply frequency ANSWER DOWNLOAD EXAMIANS APP
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 _______ 500 W 200 W 20 W 980 W 500 W 200 W 20 W 980 W ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For higher efficiency of 3-phase induction motor, the slip should be 1 As small as possible Very large Large 1 As small as possible Very large Large ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 20 to 30 % None of the listed here 10 to 20 % 2 to 5 % 20 to 30 % None of the listed here 10 to 20 % 2 to 5 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a squirrel cage induction motor, the number of rotor bars is generally ________ None of the listed here Even number Equal to stator poles Prime number None of the listed here Even number Equal to stator poles Prime number ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS