Transformer core loss

[Amri80]

I had a problem about core losses of a three phases transformer. I did test on a three phases transformer at no load condition for measuring its core losses, it didn't show the same result when measuring at Y or Delta or Z connection of the windings. I hope some of you can help me about this problem. Thanks before.

 

[marshg]

Try out the Electric motors & controls engineering forum:
forum237

 

[ScottyUK]

Or the power engineering forum
Forum238