Re: ??Where to get a POLE Transformer??

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

Original poster: "Metlicka Marc by way of Terry Fritz <twftesla-at-uswest-dot-net>" <mystuffs-at-orwell-dot-net>

shad, all
a little while ago i had to find a 750 kva pad mount for our company, i
ran across alfa transformers site which is richly informative.
especially :http://www.alfatransformer-dot-com/coppervsalum.htm
i think most will be surprised that for our needs in coiling, aluminum
wound transformers are actually better suited.
i know i was.
well worth the reading.
marc

Tesla list wrote:
> 
> Original poster: "Sundog by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<sundog-at-timeship-dot-net>
> 
> Hi All,
> 
>  Out of curiosity, why's the aluminum wound pig crap?  There should be
> little effect of oxidation on the internal connections, as it's submerged in
> oil.  The 14kv10kva pig I got is aluminum wound.   If I'm remembering right,
> aluminum wound pigs use foil vs wire (I'm sure more educated ppl can correct
> me if I'm wrong).  The foil will have many times the surface area of the
> wire, so it can carry more current.
>   Besides all that, caps use aluminum, and they stand up to pretty chunky
> current jolts with no trouble.  Only real drawback I can see to aluminum
> over copper is the higher resistance once the surface is oxidized.
> 
> So I ponder, why is the aluminum pig crap? :)
> 
> Shad
> 
> ----- Original Message -----
> From: Tesla list <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Friday, April 06, 2001 5:54 PM
> Subject: RE: ??Where to get a POLE Transformer??
> 
> > Original poster: "Loudner, Godfrey by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <gloudner-at-SINTE.EDU>
> >
> > You can get a good deal on a 14,400V/5KVA or 14,400V/10KVA pole pig at T-at-R
> > Electric in SD (www.t-r-dot-com). Their pole pigs are fully reconditioned with
> > all copper windings---none of that aluminum crap. If you live close to
> South
> > Dakota, there is your best deal.
> > You also will get papers to prove that your transformer is free of
> > PCB'S---good to have on hand if the EPA drops by for a little visit.
> > Talk to Chris at T-at-R, who has set aside pole pigs just for Tesla
> > coilers---very friendly. The price has been going up $50 per year.
> > Last year $250 for a 14,400/5Kva---this year $300 for the same.
> >
> > Godfrey Loudner
> > > -----Original Message-----
> > > From: Tesla list [SMTP:tesla-at-pupman-dot-com]
> > > Sent: Friday, April 06, 2001 12:55 PM
> > > To: tesla-at-pupman-dot-com
> > > Subject: ??Where to get a POLE Transformer??
> > >
> > > Original poster: "raven0075 by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> > > <raven0075-at-home-dot-com>
> > >
> > > Is there anywhere I can order a used pole transformer 14.KV
> > > Or where can you pick these up?
> > >
> > > Thanks
> > > Brian
> > >
> > >
> > >
> >
> >
> >
> >