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Induction motor (1 Viewer)
- Thread starter howareya
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+:: $i[Q]u3 ::+
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- HSC
- 2003
AC induction motors~>
basically you have a cylindrical "squirrel-cage" rotor which turns inside the motor.
the stator has a whole bunch of coils in it (check a textbook; you might find a picture)
The coils in the stator are powered by a three-phase alternating current, which sets up a shifting magnetic field - it 'rotates'...
This rotating magnetic field induces currents in the metal bars of the 'squirrel cage' rotor. (changing magnetic field will induce currents in a conductor)
but then the bars find themselves carrying a current in a magnetic field.
So the bars are forced to turn, following the same direction of the rotating magnetic field, 'chasing' it...
(it has to chase it because if they went at the same time, there'd be no relative movement between the magnetic field and the rotor, so no current would be induced...)
basically you have a cylindrical "squirrel-cage" rotor which turns inside the motor.
the stator has a whole bunch of coils in it (check a textbook; you might find a picture)
The coils in the stator are powered by a three-phase alternating current, which sets up a shifting magnetic field - it 'rotates'...
This rotating magnetic field induces currents in the metal bars of the 'squirrel cage' rotor. (changing magnetic field will induce currents in a conductor)
but then the bars find themselves carrying a current in a magnetic field.
So the bars are forced to turn, following the same direction of the rotating magnetic field, 'chasing' it...
(it has to chase it because if they went at the same time, there'd be no relative movement between the magnetic field and the rotor, so no current would be induced...)