ballasting not revisited, Saturable, controllable cores

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Hello All,

I tried to cross post to Steven Roys on HV but no 
luck. Hopefully heâ??s bending glass and passing 
gas! Wow, heâ??s a renaissance man. I have been 
reading his articles on air conditioning conversions on a separate Google.

Ok Iâ??m good with a PC and a calculator and wish 
I had such when I was using a slide rule! Someone 
help with the math? it seems to get hairy with cores and such!
There has been talk of making a saturable 
reactors out of three phase transformers (on the 
primary side). The two outer coils control the 
saturation, center coil is inductance to the pig. 
First question: do the outer cores have to be 
reverse wound or can they be reverse polarity DC? 
Would a 15KVA tranny be too big for say a 10KVA 
14.4? If not, what kind of DC power are we 
talking about to control this on both legs from 
20amps to full tilt? DCâ??s 120 ma would be far 
exceeded so rewinding the thing seems likely. 
Anyone want to explore this? Take it easy on the core geometries â?º

Still working on my 3 phase monster... 3 2950 
Superiors in a stack for voltage control. A 20KW 
3 phase generator driven by an Isuzu diesel (not 
a factory unit!). Probably smoke my DC/asrg first 
light. I'll be standing back...

Jim Mora
Long Streamers