Re: Capacitive ballast

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

Original poster: "Jason Johnson by way of Terry Fritz <twftesla-at-uswest-dot-net>" <hvjjohnson13-at-hotmail-dot-com>

Actually capacitive ballast will work in a level shifting circuit as used on
MOTs. There are two capacitors in the circuit that limit the output of the
MOTs in this circuit. You can see the circuit at Gregory Hunter's webpage
http://www.angelfire-dot-com/ga3/tesla/motpic.htm . There was also a discussion
on the list about this a while ago too, and it was decided that there was no
reason that this wouldn't work for a pole pig or other transformer as well.
While its not the same as a ballast thats commonly used on pole pigs where
the current actually passes through the ballast on the primary side, it
serves the same function, and gives you more voltage to boot, which may be a
good thing (wider gaps better efficciency etc.) or a bad thing (more
expensive caps etc.).

Jason Johnson

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, February 25, 2001 1:44 PM
Subject: Re: Capacitive ballast


> Original poster: "R.E.Burnett by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<R.E.Burnett-at-newcastle.ac.uk>
>
> Hi Alan and all,
>
> This idea seems to come up from time to time, but does not work for
> a number of reasons.  Check out this previous post in the archives for an
> explanation:
>
> http://www.pupman-dot-com/listarchives/1999/October/msg00590.html
>
>                                                         Cheers,
>
>                                                         -Richie,
>
> > Original poster: "Kelly & Phillipa Williams by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <kellyw-at-ihug.co.nz>
> >
> > Hi All!
> >
> > Why can't you use a capacitor for ballasting a pole transformer?
> > Would it resonate with the primary windings or induce a resonant
condition
> > in the secondary ciruit? If so, how?
> >
> > Thank you for any information,
> >
> > Alan Williams
>
>
>
>