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Re: Primary Q's and Spark Gaps
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Primary Q's and Spark Gaps
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From: mrbarton-at-ix-dot-netcom-dot-com (Mark Barton)
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Date: Sat, 2 Dec 1995 01:18:42 -0800
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>Received: from ix3.ix-dot-netcom-dot-com (ix3.ix-dot-netcom-dot-com [199.182.120.3]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id CAA18800 for <tesla-at-grendel.objinc-dot-com>; Sat, 2 Dec 1995 02:15:28 -0700
You wrote:
The quenching action from a multi-section gap as you describe comes
from the many plasma-to-metal interfaces. The more metal that can be
introduced into the gap, the better. As is written somewhere in _High
Power Electronics_ (I think), spark quenching action can ONLY take
place at these interfaces. Essentially, the metal is sinking the heat
out of the spark, and the more surfaces that are interposed, the better
job it can do.
Zap,
Mark
>
>Re: Gap resistance
> I'm not sure that it isn't possible to reduce the resistance
>of the gap by using large, closely-spaced electrodes. I have an
>AMRAD quenched gap from spark coil days which has electrodes
>spaced about 0.010" and of 1-1/4" diameter. A great deal of efford
>effort! was put into keeping the faces parallel. The whole gap
>is made up of 22 sections in series. From examining the faces of
>the electrodes after they have been cleaned and run a while I
>suspect the discharge is of reasonably large area. Don't know,
>though. Anyhow, the quenching is supposed to come from the large
>area and short spacing.
>