TSSP: List Archives

From: "Terrell W. Fritz"
Date: Mon, 14 Oct 2002 20:51:52 -0600
Subject: Re: [TSSP] Top Voltage

Hi Paul,

At 03:51 PM 10/14/2002 +0100, you wrote:
>Terry wrote:
>
>> 300 Vfire raised medium shpere (base current)
>> http://hot-streamer.com/temp/OLTC10-12-11.gif
>> http://hot-streamer.com/temp/OLTC10-12-11.CSV
>> breakout was 100% of teh time
>
>I notice when examining the secondary ringdown that
>we can see a clear transition between the initial 
>steep part of the decay, and the later part of
>the ringdown.
>
>The transition seems to occur around 400uS, at 0.6
>amps base current.  This corresponds to 63kV on the
>topload, and a surface field on the sphere of 19kV.
>
>Prior to this point, the Q factor averages 32 and
>afterwards, it averages 86 (almost the unloaded value).
>
>I suppose we're seeing the discharge cut off.  
>
>It's wonderful to see so much of the secondary energy
>going into the streamer load.
>--
>Paul Nicholson,
>--

I see that dual slope waveform a lot but I never realized what it meant, till
now :-)  I think you are totally correct in light of my direct observations
here.  It is interesting since it suggests a voltage or power level where the
streamer is actually quenched or starved off.  If the pulses were more
repetitive to keep a leader going and all, I bet the power to the streamer
would be greater.


Maintainer Paul Nicholson, paul@abelian.demon.co.uk.