# Re: Danger, and I don't understand why.

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-----Ursprüngliche Nachricht-----
Von: Tesla List <tesla-at-pupman-dot-com>
An: <tesla-at-pupman-dot-com>
Gesendet: Donnerstag, 19. August 1999 00:49
Betreff: Re: Danger, and I don't understand why.

> Original Poster: "Robert Jones" <alwynj48-at-earthlink-dot-net>
>
> Hi all,
>
> The energy may be even higher.  If the primary is disconnected at the peak
> of the input current the energy stored in the magnetisation flux (not the
> current or windings) of the primary may get transferred to the secondary
and
> may add to its stored energy.
>
> Presumably this will happen even on a shorted pole pig which I assume has
> little shunt inductance.  The time constant is an increasing function of
the
> core and copper volume so in general the time constant will be longer for
a
> larger transformer.  Also the maximum stored energy is proportional to the
> core volume so that will be greater for a larger transformer.  So be
careful
> with those big pole pigs.
>
> -----Original Message-----
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
> Date: 16 August 1999 09:51
> Subject: Re: Danger, and I don't understand why.
>
>
> >Original Poster: Michael Tucknott <Michael.Tucknott-at-virgin-dot-net>
> >
> >Hi Terry & all
> >
> >Big snip ola--
> >>
> >> Also consider the energy stored in the transformer.  If it is a 60mA
> >> transformer and you happen to catch it at the peak current of 85mA.
Then
> >> the energy stored per leg is 0.5 x L x I^2.  It this case, 0.5 x 3711 x
> >> .085^2 = 13.4 joules!!  Given both legs, the neon can store almost six
> >> times the energy the primary cap can!  So the neon by not only be able
to
> >> shock you but easily kill you too!!!  Dangerous indeed....
> >>
> >> Cheers,
> >>
> >>         Terry
> >
> >If this true for NST`s and OBIT`S would the same occur with the
> >more powerfull pole pig or PT.
> >
> >Also if you are using MOT`s to limit your pig could thay retain
> >a residual charge on there windings.
> >
> >Thanks to all for making Tesla coiling a safer hobby.
> >
> >Mike Tucknott
> >*********************************************************************
> >If at first you don`t succeed......
> >
> >It must be someone else`s fault so
> >Find them; Blame them; Make them pay
> >
> >http://freespace.virgin-dot-net/michael.tucknott/tesla.html
> >*********************************************************************
> >
> >hi there all,

I'm a newcomer in teslacolisproblems. I need information:

what is a copper magnetic wire?
is it a wire with magnetic effecience without a current like a permanent
magnet? I can't believe that.

regards

stone
> >
>
>

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