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? 1500 rpm 30 rpm zero 1470 rpm 1500 rpm 30 rpm zero 1470 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 4 pole lap winding is used. The number of parallel paths are? 1 4 8 2 1 4 8 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-winding single-phase motor has low starting torque. starting torque equal to full-load torque. zero starting torque. high starting torque. low starting torque. starting torque equal to full-load torque. zero starting torque. high starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: 100 Hz. Zero Hz. 25 Hz. 50 Hz. 100 Hz. Zero Hz. 25 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called harmonics. resonance. crawling. cogging. harmonics. resonance. crawling. cogging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has almost constant speed over their full load range? none of these. Shunt. Compound (cummolative). Series. none of these. Shunt. Compound (cummolative). Series. ANSWER DOWNLOAD EXAMIANS APP
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