What does engine stall mean?

[McAutumn]

Motor stall refers to a condition where the motor continues to output torque even when the rotational speed is 0 RPM, which is generally caused by mechanical or human factors. This phenomenon occurs when the motor cannot start or stops rotating due to reasons such as excessive motor load, mechanical failure of the driven equipment, bearing damage, or stator-rotor contact. Conditions: When the motor is running, the rotating magnetic field formed by the stator windings drives the rotor to rotate, while the magnetic field generated by the induced current in the rotor also induces a counter-electromotive force in the stator windings, known as inductive reactance, which prevents an increase in the stator current. Power factor during motor stall: During motor stall, the power factor is extremely low, and the current can reach up to 7 times the rated current. Prolonged stalling can burn out the motor. Therefore, general motor testing includes a stall test. The reason is that it is generally caused by mechanical or human factors. Prolonged motor stalling will eventually burn out the motor.