Hi. I have an 8-kW Deye inverter connected to three 5-kWh Shoto batteries. The system during the day runs at about 5-kW and in the evening at about 6-kW. I have noted that the Grid voltage is very poor and sometimes run as low a 194-V as load goes up. What puzzles me is that somehow the inverter trips if the voltage improves say to 216-V and remains OK for voltage well below 200-V. The setting for the inverter is 184 to 270-V. Does anyone have a clue?

 

Maybe check under device info if there is a fault code. Could be disconnecting for other reasons like frequency.