Re: [TCML] Magnifier topics

["Dex Dexter" <dexterlabs@xxxxxxxxxxx>]

I guess the main reason for racing sparks is simply
overvolting secondary structure.Giving too much
bang size without enough output dissipation.
I heard of the reports where racing sparks quickly
triggered direct flashover between top and bottom
of coil (and primary).
Is there a racing spark phenomenon in a single 
shot mode with large enough bang size?
I think there should be which could be experimentaly 
checked out running s.s. in a complete dark.
I have also heard of design guidline not to exceed
450 kV/m of average secondary gradient to be sure
insulation problems are avoided.
Not sure about extra coil.
Maybe it is higher for some unusual reason.


Dex    
 

--- tcml88@xxxxxxxxxxx wrote:

From: Paul Nicholson <tcml88@xxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Magnifier topics
Date: Mon, 15 Feb 2010 16:35:25 +0000



For me, the most curious thing about magnifiers is that the
overall coupling coefficient goes much higher than a 2-coil TC,
but without the racing arcs.   As k is increased in a 2-coil
system, the secondary often breaks down (for reasons unknown)
with racing arcs.  Why do we not get this breakdown with
the 3-coil in which the overall k is high, and the k to the
secondary is very high.  Is it simply that the hot and cold
ends of the resonator are much further apart?   Or is there
more to it than that?  It doesn't help that we don't know what
the racing arcs are.

--
Paul Nicholson
--




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