Back from holidays and already hit my first impasse! oh well, work is work.
We have a client that wants to substitute his 3 phase 220V generator with a 2kW PV system. Fine, but he wants to be able to switch between the generator and PV. The trouble is that the circuits are mixed up between the phases of 220V. So he has one circuit L1-L2, one L2-L3 and another L1-L3.
Is there any way we can keep the circuits as they are, yet switch between PV single phase and then to the 3-phase motor if the batteries are low?