"Karl Townsend" remove .NOT wrote in
message ink.net...
VFDs would replace the phase converter need. As a rule of thumb you can
run a VFD up to twice the motor rated RPM. I've done it on several motors
and nevere has a problem. Yes, power goes down porportional to RPM.

BTW, you'd LOVE a VFD on that mill also.

So does this mean that a 1140 motor becomes 2280 RPM motor? At twice the
power?

Peter