Running 3 phase 780s on single phase power

Gordon> Since extremely high current switchers are relatively cheap Gordon> (at least compared to getting three-phase installed, and Gordon> massive aircon systems), is there any reason why you Gordon> *wouldn't* go down this route? Particularly for a machine Gordon> that's going to be on a lot? If you have an RP06 you need 3-phase anyway... Note that you can generate 3 phase power from a 1 phase supply. There are electronic devices to do this ("variable frequency converters", devices intended to drive motors) up to 2 kW or so. Those can also produce odd frequencies, so they might be a suitable substitute for a CDC motor generator (for 400 Hz power). For higher power you can get a "rotary phase converter" which is just a 3 phase motor with some trick wiring. Those are more expensive though they are easy to build paul