Re: buying a pole pig

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "J. Aaron Holmes" <jaholmes@xxxxxxxxxxxxxxxxxx>

12470Y refers to the phase-to-phase voltage in a
three-phase "Y" configuration.  Not interesting to
you, really.  7200V is what you should see between the
two HV bushings when you put 240V in on the LV side.

7200V is a little low, but probably ok with a rotary
gap.

As for "Orto", that is a little concerning.  Google
turns up lots of references to "non-orto" and
"mono-orto" PCBs...don't know if that means "Orto" and
"PCBs" are synonymous or not, but I'd definitely take
a closer look.  The transformer does appear to be
pretty old.  Forestry Suppliers Inc sells Dexsil 50ppm
PCB test kits for about $20.  Before that, however,
you could try the "burn test" prescribed by Dr. R.  If
it doesn't burn, you might simply dismiss it as PCB.
If it *does* burn, it might still be worth a PCB test
to make sure it isn't above 50ppm.

I used one of the Dexsil PCB test kits on my first
pole transformer (which happily turned out to be
PCB-free).  They're a little cumbersome to use (lots
of steps!) but my peace of mind is worth $20 to me ;-)

Regards,
Aaron, N7OE

--- Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: Justin <rocketfuel@xxxxxxxxxxxxx>
>
>
> Hi All,
>
> Just an update, here are the specs on the pig:
>
> 15KVA
> Rated Volts: 7200/12470Y        120/240
> 2.2% impedence
> Orto Filled
>
> http://jay.g-cipher.net/pig2.jpg
> http://jay.g-cipher.net/pig1.jpg
>
>
> I'm curious what the Y means in the "12470Y"...any
> ideas?
>
>
>
> Thanks as always!
>
> Justin
>
>
>
>
>
> On Mon, Jun 05, 2006 at 01:45:12AM -0600, Tesla list
> wrote:
>  > Original poster: "Barton B. Anderson"
> <bartb@xxxxxxxxxxxxxxxx>
>  >
>  > Hi Gerry,
>  >
>  > Certainly there's a place to dispose of hazardous
> waste. Look in the
>  > Yellow pages for Hazardous Waste Removal or
> similar. A call to any of
>  > the company's listed should lead you to a place
> that will take pcb oil.
>  >
>  > Take care,
>  > Bart
>  >
>  >
>  >
>  > Tesla list wrote:
>  >
>  > >Original poster: "Gerry  Reynolds"
> <gerryreynolds@xxxxxxxxxxxxx>
>  > >
>  > >Hi Bart,
>  > >
>  > >Is there a place to dispose of PCB oil if
> needed???  I think Terry
>  > >got rid of some radioactive stuff at a county or
> state site that
>  > >takes toxic stuff.
>  > >
>  > >Gerry R.
>  > >
>  > >
>  > >>Original poster: "Barton B. Anderson"
> <bartb@xxxxxxxxxxxxxxxx>
>  > >>
>  > >>Hi Justin,
>  > >>
>  > >>It may very well have pcb's. As long as you
> don't intend on bathing
>  > >>in the oil, I don't see a problem. The only
> problem is if you tried
>  > >>to dispose of the oil. As long as you leave it
> in the case and use
>  > >>the pig as intended, it's fine. If the pig
> doesn't work, well, then
>  > >>your stuck with a case full of pcb oil. So
> verify it works or get a
>  > >>written guarantee from the seller to buy back
> the pig if it doesn't work.
>  > >>
>  > >>Take care,
>  > >>Bart
>  > >>
>  > >>Tesla list wrote:
>  > >>
>  > >>>Original poster: Justin
> <rocketfuel@xxxxxxxxxxxxx>
>  > >>>
>  > >>>Hi All,
>  > >>>
>  > >>>The opportunity to buy a pole pig just landed
> in my lap.
>  > >>>This pig was in service recently and was taken
> down a couple of years
>  > >>>ago when a new road went in.
>  > >>>
>  > >>>Do you all think there's any chance it would
> contain PCBs?
>  > >>>
>  > >>>I'm a bit wary of even messing with this
> sucker, but for $50 I can't
>  > >>>pass it up...unless it's full of PCBs in which
> case it doesn't seem
>  > >>>like a good idea.
>  > >>>
>  > >>>
>  > >>>Anything else I should look for?  I'll bring a
> meter with me to test
>  > >>>continuity, but if there's anything else I can
> try I'd appreciate any
>  > >>>tips.  Not sure what the KVA rating it yet,
> but it's about 3.5 feet tall
>  > >>>so I imagine it's "big".
>  > >>>
>  > >>>
>  > >>>Regards,
>  > >>>
>  > >>>Justin
>  > >>>
>  > >>>
>  > >>>
>  > >>
>  > >>
>  > >
>  > >
>  > >
>  > >
>  > >
>  > >
>  > >
>  >
>  >
>
>
>