Structure of wind power generator<br> engine room<br> The engine room contains the key equipment of wind turbine, including gearbox and generator. Maintenance personnel can enter the engine room through the wind turbine tower. At the left end of the engine room is the rotor of the wind turbine, that is, the rotor blades and shafts.<br> rotor blade<br> The rotor blades catch the wind and transmit it to the rotor axis. On the modern 600 kW wind turbine, the measuring length of each rotor blade is about 20 meters, and it is designed very much like the wing of an airplane.<br> axis<br> The axis of the rotor is attached to the low-speed shaft of the wind turbine.<br> Low speed shaft<br> The low-speed shaft of the wind turbine connects the rotor axis with the gear box. On modern 600 kW wind turbines, the rotor speed is quite slow, about 19 to 30 revolutions per minute. There is a conduit for the hydraulic system in the shaft to activate the operation of the pneumatic brake.<br> gear case<br> On the left side of the gearbox is the low-speed shaft, which can increase the speed of the high-speed shaft to 50 times that of the low-speed shaft.<br> High-speed shaft and its mechanical brake<br> The high-speed shaft runs at 1500 revolutions per minute and drives the generator. It is equipped with an emergency mechanical brake, which is used when the pneumatic brake fails or when the wind turbine is repaired.
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