There is three-phase inverter SolarEdge SE17K in the house.
After a few months of work, we add in the house Victron MultiPlus 48/5000/70 with SmartSolar 250/60-Tr, 15 modules and BYD batteries on the third phase.
Since that time SolarEdge started to turn off nearly 15 times per day. There is the error on it "High voltage on the third phase".
Victron is working in ESS mode and feeding into the grid.
What problem can it be and how to solve it?
How did you finally resolve this?
if the grid goes down, can you get solar power from the panels using the Solaredge inverter for loads and to store energy using the Victron inverter?
Or is the Victron inverter perhaps setup only to provide energy when the grid goes down by discharging a batter?
Or none of the above?
Kind regards,
Sounds like the grid voltage is too high and you need to disable the ESS export from the Victron system.
Or find some other way to reduce the grid voltage:
Increase the wire size or reduce the length from the mains connection to the inverters.
Or upgrade the mains connection between the pole, the meter and the point of interconnection.
Or get the mains authority to tap down the mains transformer to reduce the voltage on the lines.
Another option would be to increase the high voltage tolerance of the SolarEdge, but it is likely that set to the specification of the local line rules.
Confirm that is the cause by looking at the VRM, and the high voltage threshold point of the SolarEdge. In Australia it's about 255-260V = shutdown.
