... ,guyed tower,controller,inverter,battery Technical description of 1000W wind turbine with high reliability ModelHY-1000Rotor diameter 1.8MBlade materialHY ... etc)Blade number5(variable section aerofoil)Speed-limitation mechanismElectromagnetic speed limitation and blade over-speed brakingWorking wind speed3~30m/sCut-in speed2m/ ... normally working for 15 years free of maintenance 1000W wind turbine