Wind powered turbine is a kind of equipment uses wind to generate electricity. Wind drives the turbine blades, which spin a shaft, and connects to the generator and makes electricity. The local transformer can be used to speed up the electrical voltage, so that the electricity can then be sent through transmission and distribution lines to homes, enterprises and other users. When the wind speed reaches 23 km/h or more, the wind driven generator will generate electricity. They would turn off at above 90 km/h for safety.
Wind powered turbine can also provide equipment with power for its special work, such as grinding grain or pumping water. For instance, on the Canadian Prairies, there are several thousand wind powered turbines for pumping water.
There are four basic components of a wind powered turbine. The first, the rotor is composed of two or three blades attached to a hub. Then, the power the generator generates is in the form of alternating current. And the control and protection system is performance optimized and keeps the machinery operating within safe limits. Lastly, the tower can raise the rotor high off the ground.
Modern wind powered turbines take advantage of a few, but quite big blades with diameter between 40 meters to 80 meters to optimized catch wind energy from the air. The blades are fixed with different angles to different wind speed. The generator and blades can open up to different wind direction. A rotor is installed in the height between 40 meters and 80 meters of the tower in order to catch strong wind flows.