On Mon, 6 Aug 2018 17:40:37 -0700 (PDT), trader_4
wrote:

I went through that with Fretwell already. Look, I was accused of doing
a "parlor trick" with a scope. What did I do? I connected the scope
ground to the SYSTEM neutral.

I have explained several times, attaching a scope to a center tap will
make that scope lie to you. I gave you the example of ANY delta.
You corrected me that you can buy a scope with a floating common. OK
put that on L1 and tell me what you see.
http://gfretwell.com/electrical/End%...nter%20tap.jpg
and you will see this
http://gfretwell.com/electrical/sine...0secondary.jpg

How many phases do you see? I only see one.
Is there any angle shift in that secondary? I don't see any.
A generator would act the same way.
Your "2 supply" thing is just an illusion caused by looking at a
system from the middle.
I understand people have come up with all sorts of things to try to
rationalize what they see with their meter or a scope but it is really
pretty simple if you understand power systems.

I still wonder why you persist with your paralleling bull****. Draw
that out and you will see you are simply connecting L1 to L2 and you
don't need to do anything with the white wire at all. You can leave it
disconnect on both circuits and you still get a bolted fault.