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Re: Single vs Two Phase - both sides are right!
Original poster: "Alex Crow by way of Terry Fritz <twftesla-at-qwest-dot-net>" <alexcrow-at-blueyonder.co.uk>
On Tuesday 08 January 2002 1:59 am, Tesla list wrote:
> Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <evp-at-pacbell-dot-net>
>
I know what you mean, but surely these waveforms below can be represented (if
you're using degrees, not radians, as (where t=time):
V=120 x sin(t)
> >
> > _ +120
> > / \
> > Hot1 |---|-------0
> > \_/ -120
> >
V=120 x sin(t+180)
> > _ +120
> > / \
> > Hot2 |---|-------0
> > \_/ -120
> >
?
I agree however that to all intents and purposes this is a single-phase
system, since it can be produced by a *single* rotating armature and a
transformer whose output center tap is grounded. But if you (masochistically)
wanted to simulate these two as separate voltage sources in, say, microsim,
you'd probably have to add a 180 degree lag to one of them in order to get
this...
Cheers,
Alex