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AC asynchronous motor principle

1, when three-phase asynchronous motor connection of three-phase AC power, three-phase stator windings through a symmetrical three-phase of the current magnetomotive force (rotation of the stator MMF) and produce a rotating magnetic field.

2, the rotating magnetic field and rotor conductors correspondingly cutting movement, based on the principle of electromagnetic induction, induced electromotive force induced rotor conductors.

3, according to electromagnetic laws, current-carrying conductor in a magnetic field of the rotor by magnetic force, formed the electromagnetic torque, drives the rotor rotation, when the mechanical load on the motor shaft, it outputs mechanical energy outward.