Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ 25 Hz 50 Hz None of the listed here 60 Hz 25 Hz 50 Hz None of the listed here 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors One of the speeds of a 2 speed squirrel cage induction motor is 800 rpm. The other speed will be _____ 2400 rpm 400 rpm 1200 rpm 1600 rpm 2400 rpm 400 rpm 1200 rpm 1600 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The power factor of an induction motor under no load conditions will be closer to Unity 0.5 leading 0.2 lagging 0.2 leading Unity 0.5 leading 0.2 lagging 0.2 leading ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ Outer cage winding has good pf None of the listed here Lower cage winding has low reactance Lower winding is more effective Outer cage winding has good pf None of the listed here Lower cage winding has low reactance Lower winding is more effective ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The number of slip rings on a squirrel cage induction motor is usually Two One None Three Two One None Three 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 2 to 5 % 10 to 20 % 20 to 30 % None of the listed here 2 to 5 % 10 to 20 % ANSWER DOWNLOAD EXAMIANS APP
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