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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
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
> >
> >
> >
> >
>
>