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Re: Output arc lenghts (fwd)
---------- Forwarded message ----------
Date: Thu, 16 Jul 1998 16:44:45 +0100
From: Steve Rodway <Legion-at-legion-elec.demon.co.uk>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Output arc lenghts (fwd)
Tesla List wrote:
> > Is there anyone out there who is willing to take a guess at the maximum arc
> > lenght I could get from a 4nF primary cap run at 11Kv (rms), I'm thinking in
> the
> > range 6", but if anyone knows better I'd be V.greatful to hear from you.
> >
> > Steve >>
>
> Steve,
>
> You can get about 19" sparks without resonant charging, and
> 26" with resonant charging. Is this an NST powered TC? As
> references, I obtained 13" sparks from a 10kV, 23ma OBIT, with 1.5nF
> pri. cap., and 18" or so from a 7kV, 30ma NST, with 7nF cap., and 26"
> from a 9kV,30ma NST, with 7nF cap. (I'm assuming you can get at
> least 30ma of current from your transformer. If you're using something
> current limited to 10ma for example, then all bets are off :)
>
> Power input, toroid size, quenching, etc, will affect the results.
The system will be powered by a resistively limited pole pig, so no chance of
resonant charging, I'm planning on running with a static gap, so 100 pulses per
sec, and a spherical top load about 3" in dia. as for quenching, not sure, but the
gap will be at least fan blown, possibly air blast if I can get the compresor back
of a friend :-).
Thanks for the advice,
--
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