Axiom Home Page Forums General Discussion Advice from Axiom Owners Dedicated Line for Amp?

hmmm ... I think maybe you meant 120 degrees apart ... and yes if you only look at the difference between line one and line 2 it's single phase which is what most 240V devices see. It's just a point of view. I'm thinking about it from power into the house perpective and your looking at it as power distribute to the device.

I don't think we are disagreeing here, If you don't distribute the neutral, the outlet is single phase ... but what is it if you do distribute the neutral?

Anyway, It would have been nice to have all three phases but I don't think it's distributed on the pole in residential areas. There are a few machines I'd would have consider'ed if it was.

Nope. 90 degrees apart.

I remember, Mr. Vermeulen, my grade 11 Electric Machines teacher, hand-built a 2-phase motor. He told us, "You rotten kids will never see another machine like this in your pathetic lives." He wanted to demonstrate how easy it was to start a 2-phase motor compared to a single phase motor. The rotating field starts the rotor when it's stationary.

I clearly remember the two windings were spaced 90 degrees apart and so were the two phase voltages. It had 4 brushes and he brought 4 wires out.

Mr. V was one of those rare teachers who expanded my mind.

ok, did I miss something ... this is 2 lines of a 3 phase generator ... take your choice of two: 0, 120 or 240 degrees of phase shift ...

ahhh wait, I think I understand ... your up to your devilish tricks again ... knowingly causing trouble and confusion by referring to something similar but different ... and I stepped into the trap ...

No. I assure you I am up to nothing but trying to educate. It is two phases with each separated by 90 electrical degrees. Each phase goes to a winding. The two windings are spaced 90 degrees apart. That is a two phase motor - or generator if you decide to spin the shaft and watch the voltages between the brushes.

Two phase power is rare in North America. It's all single and three phase now.

Scroll down to Figure 17. Two phase power is not the same as two phases of a three phase source.

https://www.industrial-electronics.com/epst-3e_14b.html

Pretty good visual aid worth the watch....... https://www.youtube.com/watch?v=CBiUOQ2WX2I

And yah, 2 phase power is a different animal than single/three-phase.

He's egg'in you on Michael ... he knows exactly what he's doing ...

Two phase motor vid:

https://youtu.be/XOWO2o9_J3E

Three phase rotating magnetic field:

https://youtu.be/_DYt0Wpmwqg

It's magic!

Obvisously he knew his audience

Yup. Three of us were the exception.

I can tell a lot of googling went into this thread…. Lol.

Michael is an OG sparkie! Respect!