> Errr.... 220V comes in single phase and three phase flavors. While I
> believe 2 phase power does exist, it's somewhat esoteric-- I've never even
> *heard* of one, let along seen one.
There once was two phase - four wires with the phases 90 degrees apart -
but it is basically "gone"* now. A few big old Navy radio transmitters
from the 1920s used in for the motor-generators.
*It may still be held on in old factories. Remember, New York City *just*
discontinued DC power distribution!
William Donzelli
aw288_at_osfn.org
Received on Mon Feb 24 2003 - 20:30:01 GMT
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