For a project, we are considering reducing the grid connection from 3×35 A to 3×25 A.
The system consists of three Victron Multi RS Solar units connected to a 2×16s MB31 battery pack. In the near future, the battery capacity will be doubled.
My expectation was that in ESS mode the net power at the grid connection is maintained at zero. I also assumed that an overload on one phase (e.g. L1) would be compensated by exporting power on the other phases (L2 and L3).
In practice, this phase compensation does not seem to occur.
Is this expected behavior, or is it possible to enable this functionality? If so, where can I configure this setting?
In the future, we will improve phase balancing. However, since energy metering is based on the sum of all three phases, phase compensation would be desirable in this situation.
The ESS is currently set to 0 W and is operating in multiphase regulation mode.
From experience with other installations, I know that it will never be exactly 0 W and that some fluctuation is normal.
I’m familiar with this setting on the MultiPlus-II, but I can’t seem to find an equivalent option on the Multi RS.
ESS operation with the Multi RS appears to be slightly different, and this particular function seems to be missing (at least for now).
