FW: buying a pole pig

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Hello All,

It seems to me that my transformer is 14400y/x. Does that mean this has the
potential BTW the HV conductors on the pole lines as described below? That
would make a knurly 3 phase, Yes?

Lighting,
Jim Mora

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Monday, June 05, 2006 9:08 AM
To: tesla@xxxxxxxxxx
Subject: Re: buying a pole pig

Original poster: "Jack King" <ekklekktikk@xxxxxxxxxxx>

Greetings,

"Y" or "GRDY" is a connection arrangement in a three phase set-up of
these tubs. "Y" denotes that three transformers are each fed a phase
on one of the HV bushings and the three remaining HV bushings are
tied together - and typically grounded - The arrangement resembles a
"WYE" the other (less common these days) is a "DELTA" connection...

Anyway, for all intents and purposes, the transformer your
considering is a 7.2 kv unit as used in the manner you will be using
it in...I will say these big pigs are pretty forgiving with limited
duty cycle runs of over-volting the "primary" (or the secondary I
should say - as the linemen refer to the lv side as a secondary)...

Also if your concerned as to the PCB content of the oil, get yourself
a "Chlor-N-Oil" test kit. I like the 20 PPM screen kit. These are
availbale through most X-Ray repair facilities and also through some
local utiliites (if you know where to look). The kits cost between
$15 $30....Anything that reads <50ppm is considered pcb free,
anything above that opens up a lot of liabilities for you if you
posess such an item...

CHeers,

JAck


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: buying a pole pig
>Date: Mon, 05 Jun 2006 09:15:30 -0600
>
>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
> > >>>
> > >>>
> > >>>
> > >>
> > >>
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
>