Re: Simple Ballast - Photos and data

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

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bert.hickman-at-aquila-dot-net>

Terry and all,

After your extended run, I was able to put my little finger inside the
spool. While the temperature inside the spool was somewhat warmer that
the outermost turns of wire, it certainly wasn't "hot", and it was
nowhere close to the rated temperature of the THHN insulation (90
degrees C). Any idea about the current level you were running at?

Best regards,

-- Bert --
-- 
Bert Hickman
Stoneridge Engineering
"Electromagically" (TM) Shrunken Coins!
http://www.teslamania-dot-com

Tesla list wrote:
> 
> Original poster: "Terry Blake by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tb3-at-att-dot-net>
> 
> Hi Dan,
> 
> I started this Tesla stuff about 16 months ago and do not feel like an
> expert on the topic.  There are lots opinions and it can be hard to figure
> out what is OK and what is a no no.  The gist of most coilers seems to be
> that it is OK to run transformers beyond the rating for a short time.  It is
> usually a heat build-up sort of thing.  So why not a spool of wire, I ask
> you?
> 
> I have not done testing on my ballast to see if there are areas inside that
> are getting too hot.  The outside never really gets that warm.  I have a
> fellow coiler on video (Gary Lau, I think) saying that it is "slightly
> warm".  He also tried to put his fingers inside, but did not report
> anything.  I'll have to get things set back up and check it out in further
> detail for myself..
> 
> I have put together a bunch of information about what I am running and video
> clips from the tesla event.
> 
> Check it out.  All feedback welcome.
> 
> http://www.tb3-dot-com/tesla/mrun/index.html
> 
> Terry Blake
> Coiling in Chicago.
> 
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Thursday, September 05, 2002 8:14 AM
> Subject: Simple Ballast for 3kVA Pole Mount Distribution Transformer
> 
> > Original poster: "Mccauley, Daniel H by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
> >
> >
> >
> > I have a small 3kVA polemount distribution transformer and was wondering
> if
> > i could use just a big spool of 12 AWG for a simple ballast for this a
> coil
> > run with this thing.  I know at a recent tesla event Terry Blake was using
> > something similar with a similarly sized potential transformer with
> success,
> > although i'm not sure if he had a metal rod inserted as a core - although
> i
> > guess doing so would probably heat up that rod enough to cook the spool of
> > wire.
> >
> > What are your thoughts.
> >
> > "Captain Corona"
> > Formerly Daniel McCauley
> >
> > Dan
> >
> >
> >
> >