Tony Hwang wrote:

Toller wrote:

I know 3 phase is 120v line-neutral, and 208v line-line, but what is
it when all three lines are used? Or is it just not referred to at
all, since voltage between three lines doesn't mean anything?

Can 208v be called 2 phase? I know 2 phase is properly an obsolete
system that involved 2 120v line, 180 degrees out of phase; but is the
term now ever used for 208v?



Hi,
Sounds like you are confused between real 3 phase(star ot Y) and Edison
circuit. 2 phase? Maybe bi-phase?
Draw them out on a piece of paper then you'll wee what is what.
Tony
Hi,
Oops, Star = Y or delta.
Tony