Synchronous Motor

[IASMike]

I have an application where we need to upgrade a drive on a two speed 5ooHP Synchronous motor. Can anyone tell me can I put an ac vectrol drive on this motor and if so what are the advntages and disadvantages ?

 

[electricuwe]

If you hardwire the motor for one of the two speeds any AC drive suitable for synchronus motors should be able to deal with that setup.

The only disadvantage (compared to the current situation)that comes to my mind is, that you loose the option to operate the motor optimised for power factor correction.