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