Yueqing Sandi Electric Co.,Ltd is one of the leading China wind turbine on grid inverters manufacturers,Website: , welcome to wholesale cheap wind turbine on grid inverters from our professional factory. Technical specification Type SDS-10KW SDS-20KW SDS-30KW SDS-50KW SDS-100KW Rated capacity 10kW 20kW 30kW 50kW 100kW Rated AC Output power 10kW 20kW 30kW 50kW 100kW Max. AC output power 11kW 22kW 33kW 55kW 110kW Insulate mode Low frequency transformer Recommended wind turbine power 10kW 20kW 30kW 50kW 100kW Max. DC open Circuit voltage 780Vdc MPPT range 150~780Vdc 200~780Vdc 450~780Vdc Max. DC input current 73A 100A 150A 110A 250A Max. efficiency 94% Europe efficiency 92% Operating range utility voltage (single phase) 310~450Vac Operating range utility frequency 47.5Hz-51.5Hz Total Harmonic Distortion (THD) <3% Power factor ≥0.99 Communication Interfaces RS485/RS232 Operation surroundings -25~+55°C Temperature   Operation surroundings Humidity 0~95%,No condensing Protection Protection for input connecting contrary,input lack of voltage, output overload, output short circuit and over heat. Cooling mode Forced cooling Noisy <50dB Protect degree IP20