Re: [TCML] Diesel for transformer oil?

["DC Cox" <resonance@xxxxxxxxxxxx>]

Best to use transformer oil, or risk the very real possibility of damaging
your expensive to replace X-ray transformer windings.

Dr. Resonance




On Wed, Nov 5, 2008 at 2:44 PM, Terry Oxandale <Toxandale@xxxxxxx> wrote:

> I'd think that you'd have one heck of a fire to put out if something
> went wrong.
>
> ox
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of David Rieben
> Sent: Wednesday, November 05, 2008 2:52 PM
> To: Tesla Coil Mailing List
> Subject: [TCML] Diesel for transformer oil?
>
> Hi all,
>
> I have recently removed some bad oil from my
> x-ray transformer due to some internal arcing
> that had been occuring. The oil was nearly
> black with suspended carbon paritcles (not
> good). The tank holds a whopping 25 gallons
> and a quick call to my local oil jobber revealed
> that the recent lower spot market cost oil crude
> had obviously NOT yet trickeld down to the
> transformer oil customer, as the price quote
> for a Shell DialaX transformer oil was $10.01/gal!
> Partial fill-up is not an option for x-ray transfor-
> mers as they run a very high voltage/volume
> ratio that is entirely dependant upon proper oil
> filling to be functional at anything near their
> rated voltage. This got me to thinking about
> stories of scrap metal dealers running their
> diesle trucks on the oil of reclaimed transformers
> and wondering if diesel fuel could also possi-
> bly be used for a suitable dielectric oil for
> filling transformers. Diesel has an oily consis-
> tancy and can now be purchased for less than
> $4/gallon. I know properly rated transformer oil
> is the BEST but I just can't see dropping >$250
> to repair a transformer that I only paid $50 for
> when I bought it! How much does mineral oil
> laxitive at the farm coops generally go for per
> gallon? Any suggestions?
>
> David Rieben
>
> PS - Too bad that I couldn't have filtered the
> contaminated oil to reuse.
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