On Wed, 25 Jul 2018 11:36:10 -0500, notX
wrote:

On 07/24/2018 12:45 PM, wrote:

[snip]

I suppose you will want to call 3 p center tap delta "4 phase".

Isn't the center tap neutral, not a phase?


A phase refers to the angular displacement of the sine wave. Center
tapping a winding does not change the angular displacement. it is
still one sine wave, you are just looking at it from the middle.

Think about walking up a ramp. It is just one ramp with one slope but
when you are in the middle, one way is up and the other way is down.
The ramp did not change, only the place where you are standing.