| You have single phase at home, it is called an Edison three wire system. Two hot legs are the one phase, the neutral is the center tap of the transformer, which divides the voltage in half.
If a 3 wire circuit is balanced there will be no current flow in the neutral.
A Single phase circuit off of a three phase with a neutral is always current carrying, never gets balanced.
You need all three hots with a neutral and each circuits to carrying the same load to see zero amps in a balanced three phase circuit.
The rotation is 360 deg on a true single phase service. A three phase is 120 deg apart. |