Re: Strike Rail

• To: tesla-at-pupman-dot-com
• Subject: Re: Strike Rail
• From: "Barton B. Anderson" <tesla123-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 29 Mar 2000 21:36:57 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

>
> Original Poster: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz>


Ok John and Malcolm, 
This is interesting  - comment below: 

>
> > There is some indication that in many coils, a strike to the primary 
> > is unable to damage the cap because the low impedance of the 
> > primary "kills" the voltage.  Also overvoltages will be shunted across 
> > the safety gap.  I do not use a strike rail on my coils....I just let the 
> > sparks hit the primary. 
> > 
> > cheers, 
> > John Freau 
>
> My reaoning exactly. I don't use strike rails either and the primary 
> gets hit plenty. 
>
> Regards, 
> Malcolm




I was thinking that a high powered system may be better off with a strike rail.
Would either of you say a high powered (14.4kv/694mA pole pig driver) strike to
the primary have no ill effects on the cap? It just seems a 1.6MVp-p strike may
find it's way across the gap to the cap and possibly back to the transformer.
Does the low impedance of the primary actually stop this from occurring
regardless of power levels? 

Bart 
 

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