Wind Power 3D Animated Video - Renewable Energy Educational Videos
Wind power, as an alternative to fossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation and uses little land.
How it works:
Wind Turbines draw upon the kinetic energy of moving air to generate electricity.
Wind passing over the angled blades of the rotor causes them to lift and rotate.
Blades are pitched out of the wind to keep the rotor from turning in winds that are too high or too low to produce electricity.
Gears connect the low-speed shaft to high-speed shaft and increase the rotational speeds from about 10 to 60 rotations per minute.
The high-speed shaft drives a typical induction generator that produces 60 cycle AC electricity.
An anemometer measures the wind speed as well as direction, and transmits the data to the controller.
The controller starts up the machine at appropriate wind speeds and orients the turbine properly with respect to the wind.
Gears in the yaw drive mechanically turn the turbine to face the wind.
In case of emergencies or high wind speeds, a brake can be applied to stop the rotor.
Produced electricity is channeled down the tower and underground to the power grid.
And all aspects can be monitored at a ground level console.
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