engineering recuitment TANGEDCO Field Assistant (Trainee) Mock Test Electrical Machines Three Phase Induction Motor
Cogging in an induction motor is caused
1
If the number of stator slots are unequal to number of rotor slots
2
If the number of stator slots are an integral multiple of rotor slots
3
If the motor is running at fraction of its rated speed
4
Due to 5th harmonic