Unraveling the Mystery of Electrical Phases

[sophiecentaur]

I wonder if we considered a three phase system, that we could resolve this. The only reason that the two 'ends' of a WYE (star) system have a PD between them is because there is a phase difference (ref neutral and ref anywhere else, aamof). If they were in phase there would be no PD between them. Likewise, the two ends of the secondary of a 'split phase' are in antiphase. If they were in phase (ref to anywhere) and of equal magnitude, there would be no PD between them.
How can there be anything 'special' about the volts at the two ends of a centre tapped secondary that would make you say the phases (and amplitudes) were the same but have a PD between them? I guess the only thing you could say is that the magnetic flux through the core, for each half of the winding is actually in phase.

 

[Averagesupernova]

We went less than two hours yesterday from the time I posted in #65 until post #69 when Zgo said:

... and supernova? What about you?

And here we are nearly a whole day later with no reply from Zgo. I would also like to continue this debate.