Running 3 phase 780s on single phase power
Paul_Koning at Dell.com
Wed Jan 21 10:40:28 CST 2009
>>>>> "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.
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