MOT stack rebuild

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Christoph Bohr" <cb@xxxxxxxxxxxxxxx>

Hello Folks.

I am currently in the process of rebuilding my 6MOT
stack as I wired the primary side with a too thin gauge
wire and am expecting significant losses there.
So I drained the oil, but now I have two more questions:

Should I remove the shunts? I do not need more current,
but I fear  with the shunts in place I might experience
other negative effects, as lower output voltage or
increased no load current draw.
With no load it pulls around 8 amps which sounds pretty
much to me, or am I missing something?

The other thing is, I fear one MOT might have experienced
a breakdown of the insulation. But when I do a low voltage
test, everything works fine. ( However, I have no way to
measure the secondary voltage with 230V in, only with 12Vin )
I believe it might be possible, that the insulation broke down,
but after switching off, the oil caused some kind of "selfhealing"
action.... probably just wishfull thinking.
The physical arrangment makes it impossible to access the
possibly affected mot, so I have to disassemble the stack first.
Is there a way to test the single xformer alone outside the stack
for this kind of failure mode?
Unfortunately I do not have access to more MOT's, otherwise
I would simply change the one transformer...

Thanks a lot in advance

regards

Christoph Bohr