I am looking for a support concerning the possible causes of a problem we found in our Quattro Inverter.
Quattro 24/8000/200-100/100 230 Vac
The issue happened when I plugged the equipment on grid in AC IN 1. Few seconds later, a spark occured inside and the external circuit breaked cut the power. With the grid off, the system continued to work as expected with the batteries.
We plugged the grid in the second channel to simulate the generator (AC IN 2) and it worked as expected.
It seems the spark was on the circuit showed in the pictures attached, the fuse is blown. I think it is not a good idea just replacing it.
Thank you in advance.