Transformer identification

[CHoaglin at aol.com]

In a message dated 8/9/99 9:27:23 PM Eastern Daylight Time, 
jlarryh at iquest.net writes:

> But, that brings up an intersting question.  Is there anyway to quickly
>  check the ratio of such a transformer from winding to winding.  We have a
>  simple-to-use tester at work (but probably not cheap) that we use to verify
>  the ratio of large power transformers (as part of a series of testing). 
>  Anybody know how these work?  Knowing the ratios of a transformer and
>  something about the original application could easily lead one to the
>  appropriate connections and voltages.

I'm not sure if this would work, but maybe a time domain reflectometer could 
be used to find the length of each winding, giving a rough idea of the ratio 
of one to another..I may be attacking the problem in a totally wrong way, 
though..I'm not sure..

Chris