The torque produced by a motor at rest when power is applied. For an ac machine, this is the locked-rotor torque.

The amount of torque produced when power is applied to a motor at rest.

The torque or twisting force delivered by a motor at the instant it is energized. Starting torque is often higher than rated running or full load torque.

The torque exerted by the motor during the starting period (a function of speed or slip).

The maximum torque (turning ability) produced on start of motor.

The torque at the bottom of a speed (rpm) versus torque curve. The torque developed by the motor is a percentage of the full-load or rated torque. At this torque the speed, the rotational speed of the motor as a percentage of synchronous speed is zero. This torque is what is available to initially get the load moving and begin its acceleration.

The torque produced by a motor as it begins to turn from a standstill and accelerate. Sometimes called locked rotor torque.