[RE]Quenching Theory Question (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 18 May 2007 18:42:39 -0400 (EDT)
From: M G <gt4awd@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: [RE]Quenching Theory Question (fwd)

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I'm not an expert at any of this but I can say I looked at one of this
list members websites. It showed one volt at one thousand amps jumping a
large air gap just as one thousand volts at one amp would. So, I do not
think the potential difference (voltage) is the only determining factor
to spark length.
Matt G.

By the way, if the person with this website can link to that
image/article that would be great.


      ---------[ Received Mail Content ]----------

      Subject : Quenching Theory Question (fwd)

      Date : Fri, 18 May 2007 09:34:49 -0600 (MDT)

      From : "Tesla list" <tesla@xxxxxxxxxx>

      To : tesla@xxxxxxxxxx



      ! Original poster: List moderator







      ---------- Forwarded message ----------

      Date: Fri, 18 May 2007 11:19:35 -0400

      From: "Breneman, Chris"

      To: tesla@xxxxxxxxxx

      Subject: Quenching Theory Question



      Hello,



      I'm trying to figure out some simulation parameters for a
      spark gap, and had a few questions about arc formation and
      quenching. Is it correct that the point at which an arc forms
      is entirely dependent on the potential difference between the
      contacts? I've seen a lot of tables that relate arc length to
      voltage, so if this is correct, I could find out all of the
      arc formation parameters myself. Also, I was wondering what
      determined when an arc quenched. I know that once a gap
      fires, the voltage can drop and/or oscillate significantly
      without the arc extinguishing, but how low can the
      voltage/current drop before a typical arc extinguishes for a
      giv! en distance? The distance involved here is going to be
      only a few mil limeters, so that's what I'm interested in.
      Like, how low could the voltage/current across a gap of a few
      millimeters get before quenching, with moderate air flow?

      I also had a few questions about resistance encountered in a
      gap. Is the resistance generally constant with a given gap
      width? And what kind of resistances are usually encountered?



      Thanks a lot,

      Chris












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