Re: Basic TS curcuit conflict

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

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-uswest-dot-net>" <m.j.watts-at-massey.ac.nz>

On 30 Apr 01, at 17:22, Tesla list wrote:

> Original poster: "Liviu Vasiliu by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <teslina-at-yahoo-dot-com>
> 
> 
> --- Tesla list <tesla-at-pupman-dot-com> wrote:
> > Original poster: "jpeakall by way of Terry Fritz
> > <twftesla-at-uswest-dot-net>" <jpeakall-at-mcn-dot-org>
> > 
> > Gary, Gregory, All,
> > 
> Just an idea because I am not a specialist.
> In the way when the spark gap is put in parallel with
> the transformer, after the spark gap quenching, in the
> cap it is possible to remain a rezidual charge. The
> potential on the cap can add to the HV transformer
> voltage,in the next cycle, giving a higher tension at
> the ends of the primary coil. So, when the spark gap
> fires again, the voltage across the primary coil will
> drop from a higher value, inducing a higher tension in
> the TC secondary.
> teslina

The difference won't be much and there is probably an equal chance of 
the residual being an unfavourable polarity. Calculate cap energy at 
10kV. Now calculate it at 70V (being a typical gap extinguishing 
figure). If you like, be generous and calculate it at a couple of kV. 
Remember, cap energy is proportional to V^2 and it is energy that you 
are filling the cap with. 

Malcolm