"Edwin Pawlowski" wrote in message
.. .

"Jeff" wrote in message

If you really want to be confused try to understand 3 phase power. Ever
notice how all high voltage lines are in sets of three. With three
phase
power the sum of the power supplied to a load is constant so motors and
generators run much more smoothly.

3 Phase is really easy to explain. You put a volt meter across any two
wires and you get 277 volts. but across the three is 480. Simple math
huh?
Then there is power factor . . . . . .

Any two will get you 480 volts. If wired in the Y configuration and the
center is grounded , then you get 277 to ground from any wire.