Re: : Ballasting question

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

Original poster: "CJ Moore by way of Terry Fritz <twftesla-at-qwest-dot-net>" <wizard1234-at-home-dot-com>

Yes that's what I mean

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, June 26, 2001 8:16 PM
Subject: Re: : Ballasting question


> Original poster: "Charles Hobson by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <charles.a.hobson-at-btinternet-dot-com>
>
>
> > Original poster: "CJ Moore by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <wizard1234-at-home-dot-com>
> >
> > So ballasting is not necessary not matter what the scenario is if you
> using
> > a shunted power supply?
> >
> Hello CJ
> I am still coming to terms with Tesla Coil terminology. By power supply,
do
> you mean the mains input power and transformer combination?  If that is
so,
> then do you mean a magnetically shunted transformer which lowers the
> coefficient of coupling (k)? If that is so, then I understand your
response
> and agree with it. If not, please set me straight.
>
> Regards Chuck
> > ----- Original Message -----
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > To: <tesla-at-pupman-dot-com>
> > Sent: Tuesday, June 26, 2001 8:51 AM
> > Subject: Re: Ballasting question
> >
> >
> > > Original poster: "Charles Hobson by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <charles.a.hobson-at-btinternet-dot-com>
> > >
> > > ----- Original Message -----
> > > From: Tesla list <tesla-at-pupman-dot-com>
> > > To: <tesla-at-pupman-dot-com>
> > > Sent: Monday, June 25, 2001 11:15 PM
> > > Subject: Ballasting question
> > >
> > >
> > > > Original poster: "Michael O. Poley by way of Terry Fritz
> > > <twftesla-at-qwest-dot-net>" <mpoley-at-mindspring-dot-com>
> > > >
> > > > Okay, since I got such a fast response on the other question, let me
> ask
> > > > this...
> > > >
> > > > Can someone explain the theory and practice of "ballasting"?  I'm
> > familiar
> > > > enough with the physics behind the Tesla coil, but the term has been
> > > > bandied about a lot and I haven't seen anything explaining what
> exactly
> > > > ballasting is nor when it should be done, and when it is acceptable
to
> > > > overlook it.
> > > >
> > > > Mike
> > > >
> > > > Michael O. Poley
> > > > mpoley-at-mindspring-dot-com
> > >
> > > Hi Mike,
> > >
> > > I hope you get some good clear answers to your question. I am looking
> > > forward to them also. My understanding for ballast is limited relative
> to
> > > Tesla Coil application, but as I see it, the ballast in needed for
> systems
> > > using "pole pigs", transformers where if the secondary is shorted,
"like
> > > with a spark gap" , the primary see the short also. Hence, the minimum
> > > inductance needed in series with the primary appears to be a function
of
> > the
> > > transformer's maximum VA rating. (You experienced guys please correct
me
> > on
> > > this if I am wrong)
> > >
> > > But that's not where it seems to stop. Between bangs the transformer
is
> > > looking at the Tesla Coil's primary tank circuit capacitor Cp. Thus,
> there
> > > appears to be an LC series circuit comprising Cp and L where L =
ballast
> > > inductance x N^2 (pole pig turns ratio). Please again you experienced
> > guys,
> > > jump in and correct me if this is wrong. If I am right in this, then
the
> > > ballast inductance can be increased from its minimum value to where it
> > will
> > > resonate with Cp at 50/60Hz. Again the transformer primary circuit
will
> > > behave as a short circuit at resonance. So--- some value between the
> > minimum
> > > inductance and the resonating inductance needs to be worked out. I
think
> > > inductances greater than the resonant value can also be
> considered.(Please
> > > again you experts, help!!) There seems again here to be computer
> programs
> > > around to work this all out, but I would like to see and understand
the
> > > algorithms used.
> > >
> > > I hope this is helpful here or has stirred up better and more correct
> > > answers to your question.
> > >
> > > Chuck
> > >
> > >
> > >
> >
> >
> >
>
>
>