We have a 9 x Quattro 15kVA system. 3 x 33.3kW SE pv inverters and 3 x 450/100 MPPT's system. There is also a 250kVA generator connected to AC 1 with smaller grid supply at in AC 2.
The genset is set to start on overload warning when warning is active for 10s. The problem is that when grid goes off during the day, which happen everyday is SA, the inverters often go into overload warning and starts the genset. The output cuurent over the last few weeks was at 155A, 155A, 168A, once at 172A when the overload warning started.
The 3 x 15kvA Quattro inverters per phase cont output power is 12kW x 3 / 230V = 156A. So the load current is just over the 156A for the 2min while the SE inverters ramp up and take most of the load off the quattro output.
My questions is if we can set the overload warning is active for time longer so that the system can transition when grid goes off and when it goes on again so that genset is not activated. Can we set it to 180sec?
Please let me know.