The torque that the motor develops at zero speed (rotor not turning) when the rated voltage and frequency are applied is called ____ torque.
A)pull-up
B)breakdown
C)locked-rotor
D)full-load

Question

Quizplus · Accepted Answer

The locked-rotor torque is the torque developed by a motor when it is starting up from a standstill. It occurs when the rotor is locked, and the stator is energized with rated voltage and frequency.

The Torque That the Motor Develops at Zero Speed (Rotor