Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ Outer cage winding has good pf Lower winding is more effective None of the listed here Lower cage winding has low reactance Outer cage winding has good pf Lower winding is more effective None of the listed here Lower cage winding has low reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip of an induction motor is negative when Magnetic field and rotor rotate in opposite direction None of these Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction None of these Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The stator of a three phase induction motor produces _______ magnetic field. Rotating Alternating Steady None of the listed here Rotating Alternating Steady None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Very costly A variable speed motor Essentially a constant speed motor Not easily maintainable Very costly A variable speed motor Essentially a constant speed motor Not easily maintainable ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors DOL starting of induction motors is usually restricted to Low horsepower motors High horsepower motors High speed motors Variable speed motors Low horsepower motors High horsepower motors High speed motors Variable speed motors ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Decreasing rotor resistance Increasing rotor reactance None of the listed here Increasing rotor resistance Decreasing rotor resistance Increasing rotor reactance None of the listed here Increasing rotor resistance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS