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Re: More arc simulations
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To: tesla-at-pupman-dot-com
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Subject: Re: More arc simulations
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From: Terry Fritz <terryf-at-verinet-dot-com>
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Date: Thu, 15 Oct 1998 20:10:08 -0600
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Approved: terryf-at-verinet-dot-com
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In-Reply-To: <1.5.4.32.19981015111445.006aaa34-at-pop.cwru.edu>
Hi Mark,
At 07:14 AM 10/15/98 -0400, you wrote:
>Hello All:
>Terry said in part:
><snip>
> I calculated your coil resistance some time ago and came up with 227
>ohms, with DC resistance, skin effects and proximity effects taken into
>account. The calculation does not take into account dielectric losses and
>radiative losses. I think your 270 ohm value is VERY realistic for this
>coil system.
>Regards,
>Mark S. Rzeszotarski, Ph.D.
>
>
The skin effects of 3500 feet of 22 guage wire didn't seem to have much
effect (about 6 ohms). So I set the coil's resistance to 70 ohms and added
a 14 mega ohm resistor from the toroid to ground to have the same loss
effects. I thought this was more realistic of a real coil. The effects on
the model are the same as the original 270 ohm resistance. Perhaps I need
to measure the AC resistance of my coil at 111kHz to be sure 70 ohms is a
good value of resistance for my coil? I may have miss-calculated? I
figured that the 14 M ohms would represent corona and dissipation losses in
the secondary capacitance more realistically. Of course, the model's
calculations are the same either way.
Terry