Texas/New Mexico Stateline | Uh, nope you got that wrong. With 220 both have current running the same direction and vectorily add too zero if load is balanced, hence no return current on the neutral. With 110, the current does not cycle but circulates with current from the hot wire returning on the neutral wire. Don't believe me? Hook up two 110 volt light circuits using a common neutral. Turn on the lights, then open one breaker and touch the neutral wire. Gaurantee YOUR light will go on. hee hee.
I'm not sure what you are saying there that with 110 the current does not cycle. It does cycle at 60 hertz just like all household current. The way I understand 110 and 220 electricity is like this picture. As to cowboy's question does half the amps mean half the Kw, I don't think so. I have always heard it is more efficient to do say 1 hp with 220 than with 110. But how much more efficient I don't know.
 (electricity.jpg)
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Help wiring a new pump in the well
