Generator Sizing for Single-Phase Symmetra UPS Systems
What is the recommended generator size for a single phase Symmetra UPS system? ... If the generator is not sized properly, the UPS may run on battery or switch back and forth between line and battery operation while the generator is running. ... For these reasons, the recommendation is to size the generator at 1.5 times the Symmetra's full capacity and not exceed 75 % of the generator's load capacity .