| 摘要 |
A method for removing and replacing an article of wind turbine equipment (300), such as a yaw drive, internal to a nacelle (102) of a wind turbine tower (104) without use of an external windfarm site crane or external rigging on the wind tower. External rigging of wind turbine tower components may expose workers and the equipment inside the nacelle to outside weather and hazardous wind conditions. The yaw drive (300) is internally rigged with an internal support crane (200) within the nacelle (104) to an internal winch (510) capable of supporting the yaw drive (300) during a lift to the base of the wind turbine tower (104). |
