Pull-out torque



Pull-out torque or breakdown torque - a maximum value of torque which allows a synchronous motor to remain in synchronism without "pulling out" of step or synchronism.

The value of pull-out torque is always higher than value of pull-in torque and can be between 1.25 - 3.5 of the nominal full-load torque.

For induction motors the value of breakdown torque is usually synonymous with the peak value on the torque curve.