Once the turbine was installed, commissioning and handover day provided an opportunity to get inside the EWT DW54 wind turbine, in order to check everything was as it should be – as well as provide an an opportunity to take some interesting pictures.
The main photograph (above) is taken from the access ladder inside the turbine tower. This is essential for routine maintenance or repairs and extends from the ground right up into the nacelle. Fortunately, there is a rest platform half way up!
The first picture below (top left) is taken from within the nacelle and is looking into the generator and stator and rotor coils. In terms of scale, although it appears small in the photograph, it is possible to climb inside and move around.
The second picture below (top right) shows the yaw motor in the nacelle, responsible for enabling the nacelle to pivot around on the top of the tower section. The yaw system controls the orientation of the rotor blades towards the wind.
The final picture (below left) is looking down into the blade pitching mechanism. This allows the blade’s angle in relation to the wind to be adjusted to optimise the efficiency, but also for it to brake quickly by stalling the blade aerofoil. The red cable is from the lightning conductor on the blade tip, which can carry the high voltage all the way down through a proper lightning earth system to the turbine foundations, reducing the risk of any serious damage happening to the turbine. Given the physical prominence of large wind turbines, such as the EWT DW54, lightning strikes within any turbine’s working lifetime are a real possibility.
Are you considering a wind turbine project?
The first step to develop any wind power site is to conduct a full Wind Turbine Feasibility Study.