Posted by chriscase on Wednesday, October 04, 2006 at 11:47AM :
In Reply to: OT - Single Phase to Three Phase RPC's posted by jack cain on Tuesday, October 03, 2006 at 2:46PM :
since they make the second and third phases, they can make them whatever frequency, so you'd have variable speeds.
With th statics, woodworkers run thier dust collectors off a big motor, that stabilizes the 3rd leg, making the system a 'rotary'.