RE: Ident. Xfmr.

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Original poster: "Loudner, Godfrey by way of Terry Fritz <twftesla-at-uswest-dot-net>" <gloudner-at-SINTE.EDU>

Hi

This is a three phase power transformer to run a three phase X-ray machine.
The transformer converts service main voltage to the rather odd voltages
that X-ray units require, like 240 to 293. The inductance of the transformer
also helps to stabilize the power supply to the X-ray machine (stiffen the
supply). The three coils are connected together in a wye connection. It can
be used as a ballast, but I would disconnect the three coils from each
other.

Godfrey Loudner
> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Saturday, April 14, 2001 8:57 PM
> To:	tesla-at-pupman-dot-com
> Subject:	Ident. Xfmr.
> 
> Original poster: "J. B. Weazle McCreath by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <weazle-at-hurontel.on.ca>
> 
> 
> Hello Coilers,
> 
> I was given a rather substantial transformer out of a hospital
> X-ray machine that I'd like to make some use of.  It's not the
> high voltage transformer, but instead has three windings, all
> with multiple taps.  The tap leads are 14 or 12 gauge, making
> me think it's good for some current.  I was wondering if any
> of you on the list might have an idea as to what it is and if
> I could use it as a ballast for a pole pig?
> 
> There seems to be a voltage ratio of 3:1  between what I termed
> the primary (lowest numbered terminals) and the secondary (high-
> est numbered terminals).  The taps on the primary seem to be in
> a non-linear increasing scale, while the secondary appears to be
> pretty much linear.  There is no identification on the unit save
> for the manufacturer, Siemens.  The cross section of the center
> part of the core, around which are the windings is 2.3" by 3.3"
> and it weighs 55 pounds.
> 
> 
> 73, Weazle, VE3EAR/VE3WZL
> 
> Listening: 147.030+ and 442.075+
> E-mail:    weazle-at-hurontel.on.ca
>            or ve3ear-at-rac.ca
> Web site:  www.hurontel.on.ca/~weazle
> 
>