Re: Pole Pig Question: (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 25 May 2007 11:12:42 -0700 (PDT)
From: Yurtle Turtle <yurtle_t@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Pole Pig Question: (fwd)

Sometimes a picture's better than ASCII:

http://www.hot-streamer.com/adam/bigass_coil/pig_14.4kV_25kVA_3.jpg

Illustrates how the secondaries (or primaries to some
of us) may be connected in series or parallel.

Adam

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

> Original poster: List moderator <mod1@xxxxxxxxxx>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Fri, 25 May 2007 10:01:09 -0700 (PDT)
> From: J. Aaron Holmes <jaholmes@xxxxxxxxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Pole Pig Question: (fwd)
> 
> You really shouldn't refer to pole pig secondaries
> as
> "center-tapped".  For the average U.S. 120/240V pig,
> that is simply not true.  There are *two* 120V
> secondaries configured in parallel or series
> according
> to the service type, as I explained in my prior
> mail. 
> If there really was only a single center-tapped
> secondary, this would not be possible.
> 
> Actual "center taps" in distribution transformers
> seem
> to be, in reality, a bit unusual.  The most common
> use
> of a center tap that *I've* seen is on 240V delta
> three-phase transformers, where one of the 240V
> windings is sometimes center-tapped to provide 120V
> without the requirement of a separate transformer.
> 
> Cheers,
> Aaron, N7OE
> 
> 
> --- Tesla list <tesla@xxxxxxxxxx> wrote:
> 



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