... three DSPs including IGBT rectifier, inverter, chargerDigital circulating current control technology, increasing the parallel reliabilityWide input voltage ... utilitiesGreen power technology, high input power factor, low current THD, high efficiencyIntelligent battery management, extending battery ... 500VDC)Dielectric strengh(input,output to PE)2820Vdc, leakage current lower than 3.5mA, no flashover in 1 ...