30KW power curve chart Technical data of 30KW wind turbine Product characteristics Rotational speed controlled by centrifugal force and passive pitch mechanism. The power curve optimized by the two-stage spring is designed downwind to balance the driving force of the pitch and transmit power through the electric ring. Ö 3-phase direct-driven permanent magnet generator, maintenance-free. Ö All surfaces shall be sealed with external parts of the turbine, galvanized and rust-proof. ▸ Quick installation and easy operation. ▸ Compact structure and beautiful streamline.