Which of the following torques is NOT associated with a synchronous motor?

Which of the following torques is NOT associated with a synchronous motor?

Right Answer is:

Breakaway torque

SOLUTION

Type of torque associated with synchronous motor

Synchronous torque or Running Torque: It is the torque that acts on the shaft of a synchronous machine when the rotational speed of the rotor deviates from the synchronous speed and that keeps the machine in synchronism.

Pull-in torque: The amount of torque requires for the synchronous motor to pull into synchronism is called pull-in torque.

Pull-out torque: It is the maximum torque that the synchronous motor can develop without pulling out of step

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