Hi
I set up the following setup at home:
3xMultiplus 2 5000
BatteryBank with 1800Ah approx.96kwh
Octo GX
Fronius and some MPPT to Load Battery
I also have an electric car ZOE Q210 2014 and a charging station called GO E with 11 KW So now to my problem, if I activate the fuses (* 3 AC IN) (3x230V) so that the multiplus are supplied with mains power, and then try to charge the car with 3 phases, this works without problems! Now I simulate the power failure (* 3 AC IN) (3x230V) will be deactivated, if I then try to charge the car with 3 phases, an error in the charging station RCCB error occurs after 5 seconds.
The grounding relay is activated under the inverter.
I can't find a solution for this!
Charging with only 1 phase is possible without any problems!
I would also like to note that I have connected the grounding of the housing earth (multiplus) and AC IN and AC out for every Multiplus 2, but even if I break this connection, the same result fails when charging the 3-phase battery into the electric car
Best regards
Reinhard