... and to fully acclimate various grid environment. Single-machine capacity is ranging from 10KVA to 800KVA ... time0ms(adopted static switch )protectioninputvoltage,frequency ultralimit,phase wrong,phase lost outputovercurrent, short circuit, power factor lowEconomic ... Production Range: UPS, three phase (10kva~800kva), single phase(300va~20kva), three phase in and single phase out(6kva~80kva), online ...