Quick Q- impedance of 112.5kVA transformer

[greenspark1]

Hi,
I should be able to find this information but for some reason it doesn't appear on manufacturer websites. I'm looking for the impedance of a 112.5kVA dry type 480-208/120V indoor transformer. Nothing fancy. I believe it's around 4%? Frustrated I can't find it on their websites.

Jay

 

[rcwilson]

Old Cutler-Hammer data book:

112.5 kVA 600V Dry Type Transformers, Typical Impedance :

DT-3 150C rise: 6.2%
DT-3 115C rise: 5.1%
DT-3 80C rise: 4.3%

K-4 115C rise: 5.4%
K-4 80C rise: 3.3%

K-13 150C rise: 5.1%
K-13 115C rise: 7.2%
K-13 80C rise: 3.4%

Take your pick. Newer ones might be different.