The nacelle cover is fastened to the main frame, which also supports all the other components inside the nacelle. The main frames are large metal structures that must be able to withstand large fatigue loads.
On top of the nacelle of some off-shore wind turbines is a platform capable of supporting service personnel and their tools, winched down to the platform from a helicopter hovering above it. Wind turbine rotors are stopped, feathered, and locked before personnel are dropped down to or picked up from the platform.
Related category• WIND POWER
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