Re: Toroid to primary arcing

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

Original poster: "Mark Broker by way of Terry Fritz <teslalist-at-qwest-dot-net>" <mbroker-at-thegeekgroup-dot-org>

Steve,

I ditto the suggestions to add a strike rail.  I also like the MMC ;)

You could try experimenting with ETesla 6: 
http://hot-streamer-dot-com/TeslaCoils/Programs/E-Tesla6.zip
to reduce the voltage stress around the bottom of the toroid.  ET6 outputs 
a voltage and voltage stress grids that you can open in a spreadsheet 
program (Excel, Quattro, etc) or some other plotting program (MathCAD, etc) 
to view the areas of highest voltage stress (the areas most likely to break 
out).  I little twiddling with numbers and dimensions should help decrease 
the stress on the lower side of the toroid and increase it on the top 
side.  A second toroid or corona ring may be helpful, too.

Regards,

Mark Broker
Chief Engineer, The Geek Group


On Thu, 15 May 2003 15:27:27 -0600, Tesla list <tesla-at-pupman-dot-com> wrote:

>Original poster: "Steve K by way of Terry Fritz <teslalist-at-qwest-dot-net>" 
><teslainnovations-at-yahoo-dot-com>
>
>Hello everyone,
>
>I have been making coils for 4 years now, and often
>sell Tesla coils on Ebay under the name,
>"Energywizzard". There is another seller on there who
>is bashing my coil, because some arcs from the toroid
>touch the primary. I have safety gaps, and they only
>fire a small amount of weak discharge when this
>happens. It was to my understanding that this was a
>perfectly acceptable function of a Tesla coil. Am I
>wrong? I know that there is the possibility that the
>high amperage of the primary can connect to the
>output, but is this the only danger? That's what I was
>thinking... Anyway, I have some excellent pictures
>under the listing, "TESLA COIL-45 inch arcs LIGHTNING
>GENERATOR," if anyone was interested in seeing my
>12/60 coil.
>
>Steve Klec
>
>
>msnip...
>