Today I launched my installation:
Three MultiPlus II 48/8000 inverters configured in a 3-phase setup.
I also have two MPPT BlueSolar 250/100 VE.Can chargers connected to the Cerbo GX II via the VE.Can bus, and two SEPLOS batteries (14.2 kWh total).
Unfortunately, I cannot export power to the grid due to connection limitations.
After turning on the system, I noticed that **even with fully charged batteries, the system started exporting energy to the grid.
At first, the exported values were small (5–30 W), but sometimes — when there was no local load — the chargers inexplicably raised the voltage from FLOAT (54 V) to 57 V, and in that moment the system exported up to 500W to the grid.
My settings:
Grid Setpoint:100 W
System Feed-in Limit: 0 W
Hi if setup as ess it will always feed some back to grid, it needs grid to balance
What are you using as a grid meter, the better/faster meter will help to reduce grid feed in
Have your set up on multiphase regulation set to individual phase.
Sometimes, having the grid set point at zero helps.
Also for further explanation see FAQ 6 here.
You’re absolutely right, because in fact the whole system is balanced and doesn’t feed into the grid — I only see negative values on two phases. Unfortunately, I don’t have a meter yet, but I’ve already ordered one and will install it as soon as it arrives. We’ll see if that improves anything. I used to use a Growatt system before, and it didn’t show such values — though they might have occurred as well — that’s why I got concerned.
Unfortunately, I don’t have any meter at the moment, but I’ve already ordered the ET340. As soon as I receive it, I’ll install it and let you know if it improves the situation.
Is the reading shown in the attached image normal? Two phases are showing negative values and one is positive. Overall, the total is positive, but this reading seems strange to me. Is this normal?
Yes this is multiphase regulation
I only worry about about send to grid is this fake measure ?
