20kw wind turbine Blade diameter 12m Rated Rotated speed 160 Rated wind speed 12m/s Max voltage 30kw 20kw wind turbineHF10.0-20KWBlade diameter 12.0mRated ... voltage 30KWOutput voltage 380vStart up wind speed 3(m/s) Operating wind speed 3-25(m/s)Security wind speed 50(m/s ... ,tv,lighting,electric fan,charger,air condition,samll village 20kw wind turbine