What is the term for the highest steady load torque at which a synchronous motor can achieve synchronism at its rated rotor voltage and frequency?

Explanation

Pull-in torque refers to the maximum constant load torque that a synchronous motor can handle while successfully pulling into synchronism at the rated rotor supply voltage and frequency. Pull-up torque is the torque needed to accelerate the motor to synchronous speed, whereas pull-out torque is the maximum torque the motor can sustain without losing synchronism.