22kW charging station with transformer and soft starter

How to build a 22kW charging station with a transformer and a soft starter to deal with the large inrush current.
Project details: dehnes.com/electronics/2015/1...

[@BenjaminEsposti]

Nice! That sucker is heavy! You should upload more videos!
BTW, the link in the description is dead, gives me a 404.
Kinda neat how you only need two resistors for the 3ph delta soft-start, I never thought about that before but it makes sense. Of course you could use three resistors as well, like especially if you wanted to have each resistor dissipate less power (3 resistors share the same power as 2 resistors, thus each one dissipates less power).
The thermal fuses are very nice additions, I like that. You see some other setups where there isn't any protection like that, and you gotta wonder what would happen when there is a failure ... yikes!
Also it's interesting that you don't need a delay circuit to operate the bypass contactor ... the time it takes for the contactor to engage is all you needed! Cool!

[@herbertsax7169]

You mention 400V at secondary side between the phases and 230V from each phase to GND. Your schematic shows 120V to GND and 208V between the phases. I assume you charge a Renault ZOE. This mean 230V from phases to GND is correct. Overall your solution is perfect.