Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 30 to 50% 15 to 20 % 10 to 15% 5% 30 to 50% 15 to 20 % 10 to 15% 5% 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 None of the listed here (1-S) × rotor input (1+S) × rotor input S × rotor input None of the listed here (1-S) × rotor input (1+S) × rotor input S × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The good power factor of an induction motor can be achieved if the average flux density in the air gap is Large Small Absent Infinity Large Small Absent Infinity ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors 5 H.P., 50Hz, 3-phase, 440 V, induction motors are available for the following r.p.m. Which motor will be the costliest? 2880 rpm 730 rpm 1000 rpm 1440 rpm 2880 rpm 730 rpm 1000 rpm 1440 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 20 to 30 % 2 to 5 % 10 to 20 % None of the listed here 20 to 30 % 2 to 5 % 10 to 20 % None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a 3 phase induction motor, the rotor speed is _____ the synchronous speed. Equal to Greater than Smaller than None of the listed here Equal to Greater than Smaller than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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