I built a wind turbine a while back and have been using it to power lights in my house. It gives out 3-phase in star setup with no neutral. Neutral is buried in epoxy resin in the casting.
It feeds into a three phase rectifier down at the house and charges batteries. Generates 500 W peak.
I recently got my hands on a good number of single phase toroidal 400 W each transformers. I want to use them to step up the voltage at the base of the pole and step back down at the far side as it is a long distance (100 meters) and might give less voltage drop with higher voltage using these.
How can I connect these? Any diagrams I see online seem to require the neutral to be available.