Re: Three phase TC-Geek Group

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Greg Leyh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <lod-at-pacbell-dot-net>

Original poster: Christopher Boden <chrisboden-at-hotmail-dot-com>

> We got our first 3 phase variac yesterday :) a nice big stack of 3 GE 30Amp 
> units rated for 520VAC max (480 in). All matched and mechanicly paralelled 
> with a 24VDC motor drive, limit switches, and even a pot on the bottom for 
> position sensing....hmmmmm this is begging to be computer controlled :)
> 
> I'm building the new control panel specificaly for the Promethious Project. 
> It will house the 3 variacs and a TON of other goodies. It will be fed from 
> 3 phase 480. I'm winding 3 secondaries all 23"x100". I see this being tried 
> as a 3ph coil.
[snip]


Will this system be 3-phase RF, as well as 3-phase 60Hz mains?
The primary switching and charging circuits will certainly be
an interesting design task.  What kind of primary drive scheme
do you imagine using for this?
-- 


-GL
www.lod-dot-org