[TCML] transformer theory questions

[Thomas Ryckmans]

Hello,

 

I have general questions about transformer theory, and hopefully you'll be
able to point me in the right direction. looking at textbooks, all
transformers behave "ideally" so it is not of great use. 

 

How is the current output of a NST fixed?

 

What is depotting - I understand the removal of tar etc, but why do it
(sounds messy) and does it allow to change the output current?

 

What happens if you cut into the frame of a transformer, cutting the across
the iron lamination?

 

I also had a play with an old MOT, cutting the secondary winding and
replacing it with a few turns of heavy jumper cable to make a spot welder.
Works alrightish. It is an EI configuration with both the primary and the
secondary coiled around the central bar of the "E". Is it possible to
improve performance by changing the "EI" e.g. cutting a gap in it?

 

Many thanks

 

Thomas