| 摘要 |
A wind turbine generator that is capable of completely eliminating heater heating of lubricating-oil piping or that is capable of reducing the number of heater heating locations to the minimum requirement is provided. A wind turbine generator (1) is provided with a lubricating system (20) that circulates lubricating oil (L) in a lubricating-oil storage tank (21) through lubricating-oil piping (23) connected to a lubricating-oil pump (22), to lubricate a main bearing (12) connected to the lubricating-oil piping (23) by supplying the lubricating oil (L) thereto. This lubricating system (20) is provided with a lubricating-oil recovery line that is formed when the lubricating-oil pump (22) is stopped and in which the lubricating oil (L) falls naturally and is recovered in the lubricating-oil storage tank (21). |
