Re: Strange shock (fwd)

["Daniel Boughton" <daniel_boughton-at-yahoo-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Antonio,

I also noted that you thought I was speaking of
capacitance between primary and secondary, I WAS NOT
BY ANY MEANS! I was talking about the distributed
capacitance in the secondary only as I already
outlined.

Dan
--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Antonio Carlos M. de Queiroz"
> <acmq-at-compuland-dot-com.br> 
> 
> Tesla list wrote:
> > 
> > Original poster: "Daniel Boughton"
> <daniel_boughton-at-yahoo-dot-com>
> 
> > I too have seen this effect with coils that either
> > have heavy varnish or heavy insulation on the
> > windings. The static charge comes from the last
> half
> > of the charging cycle in the primary circuit. It
> is
> > esentially varying +DC or -DC (varying
> sinusoidally
> > and changes polarity when it drops to 0 Volts).
> > Distributed capacitance between the windings holds
> the
> > charge until a larger capacitance (human
> touch)causes
> > an inrush of current (shock) to estanblish
> > equilibrium.
> 
> Charge stored in the capacitance between primary and
> secondary?
> Possible if the primary circuit is insulated from
> the ground,
> but this is a very small capacitance. 
> The most probable origin of this charge is from
> ionized air 
> around the coil depositing charges over the
> insulation that 
> covers the grounded secondary coil. 
> 
> Antonio Carlos M. de Queiroz
> 
> 
> 


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