How to build a 22kW charging station + soft starter for a 25kVA transformer
To enable faster charging of our EV, I needed 3 phase 400V. But in Norway, most houses only get 3 phase 230V (IT earthing system). In order to get 400V, a transformer is needed. In this project, you can see how I built my own 22kW charging station using a cheap second hand transformer. I will also show you how you can soft start such a transformer to overcome the problem of high inrush current.