Three Phase Induction Motors The cogging of an induction motor can be avoided by Auto transformer starter Having number of rotor slots more or less than the number of stator slots Using DOL starter Proper ventilation Auto transformer starter Having number of rotor slots more or less than the number of stator slots Using DOL starter Proper ventilation 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? 1000 rpm 730 rpm 2880 rpm 1440 rpm 1000 rpm 730 rpm 2880 rpm 1440 rpm 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 An induction motor is so called because its operation depends on Mutual induction Self induction Eddy currents Hysteresis Mutual induction Self induction Eddy currents Hysteresis ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Star Partly star and partly delta None of the listed here Delta Star Partly star and partly delta None of the listed here Delta ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor None of the listed here Insufficient data Always revolves in the direction of stator flux Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux Always revolves in the direction opposite to stator flux ANSWER DOWNLOAD EXAMIANS APP