19 Jul
2016
19 Jul
'16
10:30 a.m.
On Jul 19, 2016, at 12:53 PM, Mouse <mouse at
Rodents-Montreal.ORG> wrote:
Yes, and time dependent as well. I grew up in Holland; in the 1970s, we had 3 phase in
our house because we had an electric cooking range. But ours was the only house in the
block with 3 phase service; all our neighbors cooked with gas.
In the USA, if you're a home owner with a need for 3 phase power, you probably have to
get a phase converter. Fortunately those are not hard to get, and solid state ones
(variable frequency motor controllers) can be rather inexpensive. I have one for the
3-phase motor on the lathe in the barn. $100 for a 3 hp model, as I recall, though that
may have been on sale. VFCs should even work for 3 phase 400 Hz power, just the thing if
you have a CDC Cyber tucked away in the basement.
paul
[...], especially since most electrical
installations (even domestic)
are 3-phase.
This, I believe, must be location-specific. In North America, it is
usual for domestic electrical feeds to be only two-phase (that is, they
are the two sides of a centre-tapped secondary - the two hot wires are
180 degrees out of phase with one another).