19 Oct
2007
19 Oct
'07
4:34 p.m.
I've run IBM S/390 and SP systems off of a single
phase supply like
this, with no other work to convert them, and they're perfectly happy
with it. One small "gotcha" is that it may have some control bits of
the power supply that are wired to two of the three phases, so if you
have the third phase bonded to one of the hot leads, and it doesn't
work, you may want to try bonding it to the other phase instead.
This, folks, is the Phase Rotation Sensor that he talks about, and
will cause a power check if not fooled.
Worrying about any sort of single to three phase
converter for a
modernish computer is just a waste of money. The only things that
truly need three phase (real or improvised) are things with three-phase
motors in them...
I would agree. This is what in my post a bit back was specific to
older machines - basically, before the switching power supply moved
into the picture, in the mid 1970s.
--
Will