My 10KVA inverter periodically changes over into inverting mode even though the mains
power supplying the inverter is not switched off? my supplier (installer) says this is because the
incoming AC supply from the municipality is 'Dirty'. AC waveform seems ok to me.
+- 220v to 240v continuous.
Has anyone had or seen this behavior before?
My batteries have also been giving me issues lately and the supplier replaced 2 of them last week
since they failed their load testing cycles
These are 8x 12v Victron AGM batteries. 2 x (4 x 12v) in Parallel with each other.
I noticed on one of the charging cycles after we had a municipal power failure the Batteries discharged to around 50v then the power came back on but the inverter tried charging the batteries at 52v this charge voltage should have surely been between 55v to 57v ?
Has anyone had this behavior before ?
Thanks in advance