Re: Combo Gap

["Kevin R Eldredge" <kreld-at-juno-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

On Sat, 07 Oct 2000 12:12:38 -0600 "Tesla list" <tesla-at-pupman-dot-com>
writes:
>Original poster: "BunnyKiller" <bigfoo39-at-telocity-dot-com> 
>
>Hi Scot

  Your idea is the exact setup I'm using on the Biggg Coil.   I am using
a vacuum quench gap in series using six 1.5" x 3" copper pipes with my
12" dia 3600 R.P.M. rotary.    Only 4 gaps are used out of it.    My
assumption is more gaps will divide the power between the total number of
gaps.   This is based on Richard Hull's theory, and does seem to work. 
The gap spacing is kept close,  and have had no overvoltage problems as
compared to not having the vacuum gap in series,

  The gap system handles 30 kVA using 1/2" steel rotating electrodes
which have not had much wear to my surprise.    The stationary electrodes
are 3/8" tungsten, and have considerable wear.    The vacuum source for
the quench gap is a 240 volt single stage surplus motor running on 120
volt.

  I am still waiting on calm weather for more tests of the system.  The
wind just won't let up lately. :'(

Patiently waiting in Oklahoma

Kevin E.

>
>I've been kicking around an idea that I havent seen much talk 
>about...
>running a SRSG with a static gap in series.   The SRSG I currently use 
>is
>showing signs of wear -n- tear and I feel it is due to the high 
>voltages
>present at gap alignment timing. What is happening is that the disc 
>is
>begining to show arc marks before the electrodes fully align. ( 
>slight
>schorching on the disc before the electrodes)
>
>
>
>
>
>Scot D
>
>
>
>

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