... output over-voltage, under-voltage, output overload, short circuit protection, inverter, rectifier over-temperature protection, voltage under- ... Load<5%Imbalance voltageBalance load≤1%,Imbalance load≤3%Phase shift angleBalance load≤±1°, Imbalance load≤±2° ... functionInput Over-voltage, under-voltage; Output overload, short-circuit; Inverter over-temperature; Battery under-voltage, over-voltageRunning ...