Three Phase Induction Motors A 3 phase induction motor is ________ A variable speed motor Very costly Not easily maintainable Essentially a constant speed motor A variable speed motor Very costly Not easily maintainable Essentially a constant speed motor 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 Infinity Absent Small Large Infinity Absent Small ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 8 poles 6 poles 4 poles 2 poles 8 poles 6 poles 4 poles 2 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The frame of an induction motor is usually made of Aluminium Bronze Silicon steel Cast iron Aluminium Bronze Silicon steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ None of the listed here Outer cage winding has good pf Lower cage winding has low reactance Lower winding is more effective None of the listed here Outer cage winding has good pf Lower cage winding has low reactance Lower winding is more effective ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ Is decreased Remains unchanged None of the listed here Is increased Is decreased Remains unchanged None of the listed here Is increased ANSWER DOWNLOAD EXAMIANS APP
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