PIG rating plate decoding?

To: tesla-at-pupman-dot-com
Subject: PIG rating plate decoding?
From: "Bill the arcstarter" <arcstarter-at-hotmail-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
Date: Fri, 25 Sep 1998 02:32:28 -0600
Approved: terryf-at-verinet-dot-com

Coilers,
 This has been discussed before so I am just writing this to verify the 
information.

 Turns out my pig DOES have a rating plate: 33200 GRDY/19200

 In my case, if I apply 240V to the 120-120 inputs, I get 19200 measured 
from the HV bushing to the case (my pig has the 'other' HV lead 
internally tied to the case).

 Therefore I can verify this transformer was likely part of a 3-phase 
Y-distribution system, since 19200 = (approx) 33200/sqrt(3).  Or, 
alternately, the line to neutral voltage was 19200 and the line to line 
voltage was 33200.

 Perhaps knowing what this "33200 GRDY/19200" format actually means will 
help some other coiler looking for an appropriate pig.

 If anyone else knows how to decode any other popular rating plate 
formats, I think that'd be useful information to post to the lists!

-Bill


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