[TCML] Climbing Arcs
resonance at wildblue.net
Tue May 27 09:06:54 MDT 2008
You need to enclose it. The very slightest air draft will cause the arc to
go out and restart at the base.
We had this same problems with our commercial units until we enclosed them.
On Mon, May 26, 2008 at 9:10 PM, <Sfxneon at aol.com> wrote:
> Hi All,
> I have a spare 12.5 kVA/20 kV bombarding transformer and sliding choke
> which I'm building a large Jacob's ladder using 3/4" x 10' EMT conduit. It
> works reasonably well, but the arc tends to rise up the rails too slowly
> and the
> middle of the arc outruns the ends, resulting in a restart before it
> the top. I've adjusted the angle of the rails from near parallel to about
> 18" apart at the top, without much success.
> Does anyone know how to tweak the performance of a big climbing arc so that
> it will climb to the top of the rails more often? I'm guessing that
> the air convection around the arc would help it to climb, so will
> it in a tall clear tube or box make a difference? Does the material that
> rails are made of have any effect? How about the ballasting of the
> transformer, as far as inductive or resistive, etc?
> Tony Greer
> **************Get trade secrets for amazing burgers. Watch "Cooking with
> Tyler Florence" on AOL Food.
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