Hi All,
I’ve got an issue on site. It’s a 3 phase installation w/ 3 x 10kVA Quattros, 2 x 12kW Fronius Symo + 800kWh battery bank.
System has been working as expected at least the past 6 weeks, but recently the L3 inverter has been going straight into overload, no warning, just alarm and shut down. Looking at the VRM data (and downloaded csv) it doesnt look like there is much load on the inverter when this is happening (~7kW).
Its also making a strange clicking sound as per the video below.
There is a chance it is a load issue, though this seems unlikely since it has been running fine before this and it doesn’t sound like any new loads have been connected.
Has anyone come across something like this before?
Cheers,
Jethro