ET340 measures three phase grid input to control single phase ESS (on phase 1).
The voltage reading are strange and consequently the power input/export seem off
for example on phase 1 voltage is 217.9V; on phase 2 voltage is 230.5 V and phase 3 voltage is 259.7 V.
PV production is measured with a CT attached to Multiplus II on phase 1 and reports at the same time a voltage of 236V (ET340: 217.9) (see screenshot)
recently my connection to the grid was renewed. Can someone guide me what steps to take to determine what is wrong? Thanks in advance.
