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Dean Hoffman[_7_]

wrote:
On Wed, 12 Jan 2011 20:54:48 -0600, Dean Hoffman
wrote:

This sentence is the one that doesn't ring true.
"The two insulated wires each carry 120 volts, but they are 180
degrees out of phase so the difference between them is 240 volts. "

There is NO PHASE DIFFERENCE on a center tapped transformer. If the
voltages were 180 degrees out, there would be 120 on each side and
ZERO voltage across the pair.

Which is exactly what made the little buzzer in my head go off. A
single phase can't be out of phase or out of time with itself.