I have a system that runs anywhere from 1-200A per phase. For loads under 100A per phase a three phase Quattro system with Cerbo GX (and autostarting generator) works nicely except for when the grid drops while the system is using more power than the inverters can supply. Is there another way to connect Quattros or Multiplus in three phase with a transfer switch to supply base loads when the grid is down but start the generator when the inverter capacity is reached?