> > Realy 234V (strange) and 180 degree ? Where do you know ? By definition ?
> > Just remember, if you tap between 2 phases of a 3~ signal you still get
> > a perfect sinus and you can't decide if it is a single phase or part of
> > a 3 phase signal. Ok, I'm always learning new things on this earth :9
> > The numbers just saemed to fit well.
> It's 230, 231, whatever it takes (from the movie "Mister Mom").
:))
> I'm sure the power company has a legal obligation to keep the voltage
> within a certain range of values. Although, I don't know exactly what that
> range is. I think 117 is probably the optimal value for each of the legs
> giving 234 for the total. I've heard it referred to as 110, 115, 117, and
> 120. Since the actual voltage varies any of these could be correct.
Anybody out there knowing the US regulations ? AFAIR somewhen in the
late 70s the acording definitions have been worldewide standardized
on 115V/200V and 230/400V - the intention was to allow manufacturers
(especialy the ones for power transmission systems) to develop more
efiecently and to lower building costs, since within the lower power
range (up to some MW) designs could be standardized on a simple level.
> Since it is a simple transformer, the phases are 180 degrees out of phase
> (by definition). That's assuming a balanced resistive load. Of course, that
> could change under a heavy inductive or capacitive load but, that's an
> extreme and won't normally present a problem.
Still not an argument against 2 phases from an 3~ signal.
Gruss
H.
--
Stimm gegen SPAM: http://www.politik-digital.de/spam/de/
Vote against SPAM: http://www.politik-digital.de/spam/en/
Votez contre le SPAM: http://www.politik-digital.de/spam/fr/
Ich denke, also bin ich, also gut
HRK
Received on Tue Apr 20 1999 - 17:13:00 BST