A PV system is sustainable, because it produces solar power. Three-phase String Grid-tied PV Inverters KSG-50K-HV  are installed in Brazil,which have a good performance and create higher yields for the local citizens.KSG 36~60K HV Series,a three-phase inverter whose rated output voltage is 480Vac,  is high efficiency, high reliability and easy installation. It is applicable for distributed commercial PV system and large-scale centralized PV power plants.