| 摘要 |
Provided is a wind power apparatus, which is enabled to suppress the reduction of an operation rate to the minimum by shortening the time period required for a frozen anemometer to restore even under the snowing cold circumstance of a cold area. The wind power apparatus comprises an anemometer (7) in the upper portion of a nacelle, in which a driving/generating mechanism connected to a rotor head carrying windmill vanes is housed. In the nacelle upper portion, there is formed an exit port for an in-nacelle cooling wind, which is opened toward the anemometer (7) and which is equipped with a ventilating flap (13) acting as blow direction varying means for the cooling wind. |
