Three phase transformer question

[Surefire01]

I have a three phase HV delta LV star connected transformer (Dy11). The name plate gives the following information: 400KVA rated, HV is 3.3KV at 70 amps, LV is 433v at 534 amps. My question: is the current on the name plate total three phase current, or is it current per phase. Simple for you guys I know but it is something I need to get my head around.

Thanks

 

[ScottyUK]

534A per phase.

Use the relationship P=V*I*[√]3 when dealing with balanced 3-phase loads, or with the rating of equipment designed to supply balanced 3-phase loads. Unbalanced loads need to be dealt with differently.

 

[prc]

In name plates of three phase transformers always the line currents are shown and not winding phase current which will be less with delta connection.

 

[Mila15]

Surefire01....the current is always what each phase sees, not the total sum current seen by all phases.