Basic drawings for 3 Phase Wye wound Induction Motor [Squirrel Cage Rotor], including C.C.W / C.W. direction arrangements.



wye wound Induction Motor [squirrel Cage Rotor], 2 speed, single winding, Constant Torque arrangement. This is done via tapped points on windings.



Another 2 speed single winding arrangement, this one is for Variable Torque.



Dual voltage arrangements for typical Wye wound Squirrel Cage Induction Motor.
The connections are similar to a Transformer bank using split coil type secondaries, and as far as the operation and electrical characteristics, there's no difference between an AC Induction Motor and a Transformer. The motor has a moving secondary which is separated from the primary by an air gap. Other than this, the operating methods are similar. The stator windings are actually the Primary Windings. The Short Circuited Squirrel Cage Rotor is the Secondary Windings, in which the the KVA applied to it is done thru Induction, not a physical, or Electrical circuit connection - like a brush type motor. Transformer does the same [remember the Isolated Transformer??].

I like this little bit 'o electrical theory, which is why it gets broadcasted so much

Anyhow, the motor can be set up for Low or High voltage by following the connections arrangements shown above.

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More motor drawings!!!
Synchronous 1 & 3 phase [self and externally excited], wound rotor induction, brush type motors, and more!!!

Discussion thread coming soon, or feel free to create one!

Scott SET posted 09/21/2001 @ 23:39:00