Hi,(adsbygoogle = window.adsbygoogle || []).push({});

I need to calculate the voltage regulation of the 3 ph Dzn transformer. I have knowledge of the current going into the primary winding of the transformer (Delta winding) and hence need to calculate the current in the secondary (load current) so that I can use this in the voltage regulation calculations. I am unsure of the current relationships for a Dzn transformer, are they the same as for a Delta - Star transformer (Dyn)? Also, for the voltage regulation, I have P.U. values of Positive Sequence Impedance Resistance and Reactance. Are these the values that I should convert into actual values and then use in the regulation equation, or do I use Zero sequence values as I have them also?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Voltage Regulation for three phase Dzn Transformer

**Physics Forums | Science Articles, Homework Help, Discussion**