JohnT, I have used a dual trace scope and looked at 3 phase waves that are 120 degrees out of phase and two waves from a transformer with center tap that are 180 degrees out.
Doesn't matter how you cut it, when waves are 120 out of phase, you want to call it 3 phase. When 2 waves are 180 out of phase, you want to call it single phase. Do you see the irony?
However, there are motors working on single phase that use a run capacitor on the start windings and you call them poly-phase motors. Guess you don't want to call a poly-phase motor a 2 phase motor. Poly sounds better!
No need to explain, I understand phase angles, how 3 phase generators are made.
BTW, most alternators are actually 3 phase, some heavy duty are 4 phase.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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