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What is the Impedance (%IZ) for the EE15T3H transformer?

Issue:
What is the Impedance (%IZ)  for the EE15T3H transformer?

Product Line:
LV Transformers, 600 Volts and Below, Energy Efficient
 
Environment:
EE15T3H, 3 phase, 60 Hz,480V Delta primary, 208Y/120Vac secondary, UL Listed

Cause:
Impedance of Transformers is information often required by specifications, and for calculations for Average Interrupting Current, Voltage Regulation, and other factors.

Resolution:
The impedance for the EE15T3H is 5.1 per the Energy Efficient Transformers Technical Data Bulletin 7400DB0702R07/09, page 4.  
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