Definition: Asynchronous Motor

Asynchronous Motors

Asynchronous Motors are Alternating Current (AC) motors designed such that the rotor movement is not synchronized with the moving stator field. An asynchronous motor's rotating stator field induces a current in the rotor windings. This induced current, in turn, generates a force, drawing the rotor toward the stator.

In an asynchronous motor, torque is only generated when the rotor is not in phase with the stator. If the rotor were to become aligned with the stator field, the torque would disappear, thus, causing the rotor to pause. The stator field basically pulls the rotor. This lag between the stator and the rotor is commonly referred to as a "slip."

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