Re: FW: buying a pole pig

["Tesla list" <tesla@xxxxxxxxxx>]

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

14400Y is not unheard of.  It's definitely strange,
though.  The phase voltage would be 8320V.  T&R has a
few 8320V pigs in stock.

Aaron

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

> 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,
msnip...