Re: Triggered gap questions

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

Original poster: "Metlicka Marc by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>

ahhh, i understand now. i looked at the arc through my welding goggles
(#13 lens a must) and saw that it was hitting the trigger electrode and
then on.
i used a carbide ball mill as the trig. "trode" so this is why i never
saw the erosion.
thanks a bunch, i think good sinking will be a must.
marc m.

Tesla list wrote:
> 
> Original poster: "Bert Hickman by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <bert.hickman-at-aquila-dot-net>
> 
> Marc, all,
> 
> Once the trigger pulse fires the main gap, the main discharge will flow
> from one of the main electrodes, through the trigger electrode, to the
> other main electrode. The trigger electrode must be robust enough to
> withstand these high current discharges even though there's actually no
> high current flowing into or out of the trigger electrode. Erosion of the
> relatively small trigger electrode in trigatrons is a wearout mechanism.
> Because of high rep rates (120 PPS or possibly more with more sophisticated
> triggering circuitry in a DC system), I'd recommend using fairly robust
> trigger electrodes and substantial air flow to prevent the trigger
> electrode from overheating or excessively eroding...
> 
> Safe triggerin' to you!
> 
> -- Bert --
> --
> Bert Hickman
> Stoneridge Engineering
> Email:    bert.hickman-at-aquila-dot-net
> Web Site: http://www.teslamania-dot-com
>