Controlling Induction Motor Speed with Fixed Frequency Supply

[strokebow]

If I have an induction motor connected to a fixed frequency supply then it is essentially a constand speed drive.

How can I control the speed of such a machine?

 

[stewartcs]

If I have an induction motor connected to a fixed frequency supply then it is essentially a constand speed drive.

How can I control the speed of such a machine?

Use a variable frequency drive (VFD) or change the number of poles.

CS