Re: Surge protectors as silent spark gaps

• To: tesla-at-pupman-dot-com
• Subject: Re: Surge protectors as silent spark gaps
• From: Doug Brunner <dabrunner-at-earthlink-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Fri, 21 May 1999 06:28:46 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

You might want to try it with a bigger cap, to accurately simulate the current
you'd get in TC service, since with a 10nF cap at 15kV, you would have
about 5x the
current, because the cap would be charged with higher voltage. So, I'd say
try it
with a .47uF cap, and if it works with that, and you can get enough, it would
probably work, as long as it breaks down suddenly, rather than on a curve,
which
could cause problems, depending on the steepness of the curve. Check the
specifications on it if possible.

Tesla List wrote:

> Original Poster: "Marco Denicolai" <Marco.Denicolai-at-tellabs.fi>
>
> I have been using for several hours a 350 V small surge protector (small
> cylinder with a transparent window) to discharge a 0.1 uF capacitor
charged by
> my switching power supply. Charging voltage was about 300V and pulse
repetition
> rate was about 70 Hz.
>
> The nice thing is that the surge protector didn't break or even get sligthly
> warm: it was directly in parallel to the capacitor (no series inductance or
> resistance). And it was EXTREMELY silent (I could hear nearly no sound at
> all!).
>
> That makes me to believe that this kind of devices could be used in a long
> string as a static silent spark gap. Anybody has experienced with that?
>
> MMSG = Multi Mini Spark Gaps ????

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