On 11/16/2013 12:50 PM, wrote:

[snip]

How those waveforms are derived, what else you call
them in a particular application, doesn't change the
fact of what they are and their relationship to each
other. There are many ways that such voltage waveforms
could be generated. It doesn't change the fact that in
a 240V residential service the two hots are in fact
180 deg out of phase realtive to each other.


I think the people who are denying that it (residential 120/240) is
2-phase are considering the (1-phase) connection to the transformer
primary. You still have 2 phases inside.

You could be using 2 120V transformers (primaries in parallel,
secondaries in series with ground between then), a generator with a
2-phase (180 deg apart) output, or even 2 120V (synchronized)
generators. You still have 2 phases.

--
39 days until The winter celebration (Wednesday December 25, 2013 12:00
AM for 1 day).

Mark Lloyd
http://notstupid.us

"It is the creationists who blasphemously are claiming that God is
cheating us in a stupid way." [J. W. Nienhuys]