Re: Wanted own 50K PT or two 24 to 25 kv for possible capacitors energy charging.

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Jim, Dr, all,

The x-ray transformer thing is an excellent idea that
I would have never thought of. However, with the
2 old-style 60 Hz, single phased, iron-cored x-ray
transformers that I have, I would say that the "6-8
kVA" for short duty cycles could be multiplied by 10!
They are rated at 125 and 150 kV at 500 and 600 mA,
respectively. I do realize that this voltage/current rating is
indeed designed for very short duty cycles, in that today's
x-rays are usually taken within a fraction of a second.
However, I can run either transformer through a ballasted
and variac controlled input, which allows them to draw ~ 100
to 120 amps at around 180 -200 volts (that's all the input
voltage that's required to make the output fire my Jacob's
ladder with the bottom min. clearance of the rails about
6" apart!), and can run them in this manner for 10 minutes
continuously, and the outer metal tank case does not get
any detectable warmth above ambient temperature! I should
note that the internal diodes in both of them have been re-
moved and they are now strictly AC ouput. From my ex-
perience, the internal diodes is their weakest link and they
will eventually fail if their HV outputs are shorted on an
ongoing basis. For cap charging, though, the diodes should
be fine.

The only drawback that I could see with the old style, 60
hz, iron cored x-ray transformer idea for cap charging is
that of their size/weight. Mine weigh several hundred pounds,
each.  If portability is not an issue, though, and if you
can easily get your hands on x-ray transformers, this would
be the way to go.

David

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, December 31, 2006 12:24 AM
Subject: Re: Wanted own 50K PT or two 24 to 25 kv for possible capacitors
energy charging.


> Original poster: "resonance" <resonance@xxxxxxxxxxxx>
>
>
>
>
> Why not consider an X-ray xmfr?  Most single coils will produce 30 kV
> with ease --- just remove the unused extra 30 kV coil.  Most are good
> for 6-8 kVA for short duty cycles such as capacitor charging.
>
> Dr. Resonance
>
>
> Subject: Wanted own 50K PT or two 24 to 25 kv for possible capacitors
> energy charging.
>
>
> >Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>
> >
> >
> >Thanks Jim Mora
> >
> >
>
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>