Hello ... probably the only thing I don't understand is how a neutral is NOT required on a 220V line to operate at 220.
A normal 110 circuit terminates at the panel with white to common and black (hot) to breaker. When a motor is turned on, I understand current *flows* from neutral to hot (even though it's AC, it flips 60 times a second; not dealing with AC?) I assume this is just boilerplate.
I have a 220V air compressor (2 hots, 1 ground) and it has no return, which is OK since there's no device requiring 110 (one leg). How can current flow with just 2 hot wires? I assume the 2 incoming "hot bars" (from outside) are in sync. Both bars are either positive or negative. So, when the "negative" phase occurs, where does the current drain? I can see how the ground will work... and maybe it *IS* used.
Can someone clarify?
Thanks a lot! I greatly appreciate it.
Mike