FIELD: power industry.
SUBSTANCE: wind power installation includes a nacelle (104) and a rotor that has at least two rotor blades (108). The rotor blades (108) each have a rotor blade integral portion (108a), at least one metal conductor (220) serving as a conductor for the struck lightning, and a conductive ring (230) connected thereto that is provided in the region of the root portion of the rotor blade. On the nonrotating part of the nacelle (104), the lightning protection unit (240) is fixed in such a way that the lightning protection unit (240) rests on the ring (230). The lightning protection unit (240) has two rollers (241) and a lightning rod mast (242), the free end of the lightning rod (242) being from the outer end of the rollers (241) at a distance that defines the spark gap.
EFFECT: increasing the reliability of lightning in the blade area.
5 cl, 3 dwg
