"volts500" wrote in message
. ..

"PrecisionMachinisT" wrote in message
...


At any rate, a better description IMO would have been something like "
a
two wire service, usually one phase of a three phase supply"

One phase to neutral of a 480 volt 3 phase supply is single-phase but the
voltage is only 277 volt. The OP wanted to know what single-phase 480
volt
was. Chris was absolutely right, whenever 2 phases of a 3 phase system
are
combined, the resultant sine-wave is single-phase. (It's called
single-phase because _that's_ what it is.)


Horse ****.

Makes absolutely no differance how it is derived--could be from a single
phase generator, or battery backup with an inverter and still be single
phase.

You need to toss the three phase reference out the door because it is of
absolutely no value in defining single phase power.....

You have the cart in front of the horse--three phase being three single
phase circuits that are 120 degrees out of phase from each other, connected
together in a star or a triangle configuration.

And by the way, anyone who knows diddly squat about power distribution is
likely not very impressed at your obvious attempts at further clouding the
issue by your rattling off various types of three phase service, bringing in
line to line and center tap voltages, control transformers, streetlight
wiring and all the rest of the irrevelant crap.

Have a nice day.

--

SVL