Electrical Engineering · Synchronous Motors
In a synchronous motor, 'pull-in torque' refers to:
- 1The maximum torque developed during starting when the motor is completely stationary
- 2The torque produced when the motor operates above synchronous speed
- 3The torque required to pull the rotor into synchronism with the rotating magnetic field near synchronous speed✓
- 4The maximum torque that the motor can sustain under steady-state full-load conditions without falling out of step
Correct answer
The torque required to pull the rotor into synchronism with the rotating magnetic field near synchronous speed
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