I have a Multiplus-2 with a battery
Now I wonder what happens if the mains voltage drops below 184V or frequency below 47.5Hz (values according to my gridcode settings)
So no sudden shutdown, but a slow drop below one of the thressholds.
Will it shut off or will it disconnect the mains powerline and continue to run in island mode?
Mmmm I imagine it would do the same for voltage I’m only going off of my experience as my area was one of the area that experienced a drop in frequency on the UK grid I wouldn’t have noticed anything different good and a bad thing!
What I mean by that yes you get an alert on your phone but if your at work and people are at home for them it’s business as normal, setting up home assistance with voice alerts in the house came in handy everyone knew to watch what they put on and only use essential stuff internet and TV lol, so the answer is both disconnect the mains and go in island mode until grid comes back to grid code
It will reject the grid connection and change to inverting, until the supply is within spec again.