Re: abb voy-11 transformer

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: DRIEBEN-at-midsouth.rr-dot-com 

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
Date: Sunday, April 4, 2004 1:55 pm
Subject: abb voy-11  transformer
 > Original poster: "bill wilson" <wtw-at-tampabay.rr-dot-com>
 >
 >
 >
 >
 >
 >  i have an abb voy-11  transformer. it is rated at  8400/14560y.
 > the ratio
 > is 70:1. my question is what is the y sign in the voltage. i know
 > y usually
 > means delta or three phase but this transformer is rated for 120
 > volts.

Hi Bill,

You are correct in that the Y stands for the delta votage rating in a three 
phase
configuration. The 14,560 volts is NOT a rating for the transformer in single
phase mode. The 8400 volts is the voltage that you will get from the high 
voltage
bushings when you apply 120 volts to the low voltage side of it.


   also can some one tell me what to use for a ballast to
 > make a tc
 > using this transformer. would a roll of #12 wire say 500 feet work
 > for a
 > ballast. thank you for your help
 >
 > 
http://138.227.174.121/GLOBAL/SCOT/scot235.nsf/VerityDisplay/00D5D3A3FC7B159C85256B170063C59E/$File/42-964%20VOY-11%20VT.pdf 



Yes, this is one way to ballast this transformer. You can also use one or two
paralleled MOTs with their secondaries shorted in series with the 120 volt in-
put to the transformer although you will probably need to submerge the MOTs
in oil if you plan on doing extended runs with it.

David Rieben