3 Phase current with Transfos and stuff

Do you have a good website for that ?

By Transfos I assume you mean Transformers? What exactly are you asking? Three phase power distribution comes in a few "flavors" for example a Y (WYE) configuration or a Δ Delta configuration. Which did you have in mind?

As to a "good website" this link is to a .pdf that is aimed at the trades and is a good read. I am sure a Google of Three Phase Power or Current should bring up a wealth of information.

Ron

Thank you, your PDF will do the trick

Yes transfo (transformers) with delta-delta-, wye-wye, delta-wye, wye-delta configuration with delta ou wye loads.