Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. Find the speed of stator magnetic field with respect to rotor? 1470 rpm 1500 rpm zero 30 rpm 1470 rpm 1500 rpm zero 30 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? constant loss None of these variable loss both A and B constant loss None of these variable loss both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following losses are negligible in blocked rotor test? both A and B copper loss mechanical loss iron loss both A and B copper loss mechanical loss iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of stator rotating magnetic field (RMF) with respect to rotor is Nr Ns Zero S.Ns Nr Ns Zero S.Ns ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Capacitor run Shaded pole Capacitor start Resistance split phase Capacitor run Shaded pole Capacitor start Resistance split phase ANSWER DOWNLOAD EXAMIANS APP
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