Re: spark gap question...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Sundog by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sundog-at-timeship-dot-net>

Hi All!

Isn't the plasma effectively remvoed by the high airflow?  I see no reason
the gap wouldn't quench well, if the spark by the trigger electrode is tho
only thing that lets it fire? With enough air, you can quench anything :)

Shad
besides, it's less fuss than a rotary!

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, July 01, 2001 9:06 PM
Subject: RE: spark gap question...


> Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Gary.Lau-at-compaq-dot-com>
>
>
>
> >> Original poster: "Lau, <Gary.Lau-at-compaq-dot-com>
> >> A triggered spark gap can be turned ON at any desired point in time
> >>(provided the electrode voltage is above some minimum value), but the
> >>turn OFF time is still dependant upon the same nebulous factors that
> >>govern any spark gap's quenching.
>
> >Original poster: "Metlicka Marc <mystuffs-at-orwell-dot-net>
> >this is the misconception, if the plasma channel is being totally
> >removed
> >and only supported by the triggered pulses electrons, then the gap
> >cannot maintain itself without the trigger. this is how i get it to
> shut
> >off when i want it to, granted i'm using a blower that the average
> >coiler doesn't readily have access to, but the average coiler doesn't
> >need it to force quench at will. as long as the arc cannot support
> >itself at any power level and once ignited, cannot support an arc
> >channel, it will shut down.
>
> Sorry marc, I have to differ.  Plasma in a spark gap will continue to
> conduct for as long as current is able to flow, regardless of trigger
> electrode activity.  Your trigger source is a lamp dimmer discharging a
> cap into some kind of step-up transformer.  The timing of your trigger
> pulse relative to the mains is variable by means of the dimmer control,
> but its pulse width (i.e. the end of the trigger pulse relative to the
> start of the pulse) is not independently controllable, and would have no
> effect if it were.
>
> I didn't follow you about "if the plasma channel is totally removed".
> If there's no plasma, there's no spark gap?
>
> Gary Lau
> MA, USA
>
>
>
>