Re: 25 Kilavolts -at- 2 amps!

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

Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com> 

I know about making xformers, I'm in the process of making an arc welder
atm(now that I understand what size wires I need to use). As for industrial
control transformers I have no idea what you are talking about. However,
your idea of knocking out the middle leg of an E transformer has caught my
eye. Although it means you would not have as much core area, the window
would be huge. The central leg could be reused in a transformer also. As for
the straight laminations, they are great for cores to! I noticed when
dissassembling the transformer for making my arc welder I was lugging around
20 lbs of "I" laminations and figured if I left them out of the transformer
I would have a lighter welder and enough material for several 1x1 cores!

---Eric
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, February 04, 2004 9:16 AM
Subject: RE: 25 Kilavolts -at- 2 amps!


 > Original poster: "Godfrey Loudner" <ggreen-at-gwtc-dot-net>
 >
 > Hello H2
 >
 > Don't dream, make one! Start collecting three phase industrial control
 > transformers (200 to 300 pounds). Knock out the straight laminations.
 > After you amass a large pile of E laminations, rent a metal cleaver
 > and cut out straight sections from the E's on a weekend. Then
symmetrically
 > as
 > possible, assemble a rectangular core. Use channel ducting to squeeze
 > the core tight. Well you get the idea. The core will have lots of
 > discontinuities, but so what---your building for a hobby, not some ultra
 > precision project. Go to http://home.att-dot-net/~allencoilpage and build
 > the auto winder to wind your high voltage coils. Use that transformer
 > design engine I mentioned in an earlier posting. Its a major building
 > and thinking project, but eventually you will have your own bombarder.
 > Of course you will have to beef up your service box. If the pig on the
 > pole outside is only 15 kva (like here), then you might have problems
 > running the thing with the pedal to the floor. About the choke, make one.
 >
 > So far I have dissembled 3 control transformer, but still not enough
 > laminations. I'm trying to get by with only the straight laminations,
 > without cutting the E's. I've gotten hold of a matrix printer for that
 > auto winder. I think it can be done.
 >
 > Godfrey Loudner
 >
 >
 >http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=2593780370&category=4288
 > 1
 >
 >  >check out that transformer, it appears to be a 12500-0-12500
configuration
 >  >with around 50 KVA of peak output! This would be even larger than most
pole
 >  >pigs. I wish I could afford this thing, its potential is endless.
 >
 >
 >


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