If the centrifugal switch does not open at 70 to 80 percent of synchronous speed of motor, it would result in damage to the starting winding.
Answer : Centrifugal switch disconnects the auxiliary winding of the motor at about 70 to 80 percent of synchronous speed.
Answer : In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will run as induction motor.
Description : Why the speed of synchronous motor is constant?
Description : If we change the excitation of synchronous machine will it affect on motor speed?
Answer : No, If we change the excitation of synchronous machine it will not affect on motor speed.
Description : Synchronous motor always runs at which speed?
Answer : Synchronous motor always runs at synchronous speed.