On Wed, 08 Dec 2010 07:17:09 -0700, Doug Winterburn
wrote:

On 12/08/2010 06:32 AM, Markem wrote:
On Tue, 07 Dec 2010 21:06:47 -0700, Doug Winterburn
wrote:

OK, the two hots are 180 degrees out of phase with respect to the
center-tap/neutral/ground.

At any rate, if identical loads are present on each hot, there will be
no neutral current.

If the phase is 180 degres out of phase and you add them together you
have no potential!

Mark

...on the neutral.

No electricity in two wires at 180 degrees on phase have no potential,
ie no EMF, nada, nothing, they cancel each other out. Your 240 volts
is made up from two 120 lines that are the same phase. The electric
company does not run two generators 180 degrees out of phase at the
power plant. It is just to much of a pain in the ass to keep them
synchronized.

Mark