... , Sweden and Japan. The rated output power include 300W, 500, 800W, 1,500W, 3,000W, 5,000kW, 10kW,15kW and 20kW. ... lubricating of more than 20,000 hours without maintenance 2) Start-up breeze, electricity generating at force 2 wind, safe operating at ... lower noise4) They adopt flexible connection between the rotor and generator and wind turbines operate smoothly and without vibration5) The closed ...