Running 3 phase 780s on single phase power

[Paul Koning]

>>>>> "Gordon" == Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net> writes:

 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
from a suitable size surplus motor plus some capacitors.

   paul