A white pole with three leaves is not a signal tower. Because the signal tower is a wireless signal transmission device established by network operators such as China Mobile, China Unicom and China Telecom, it looks like a tower, so it is called a signal tower. It is also a form of public radio station, which refers to a radio transceiver station that transmits information with mobile telephone terminals via a communications switching center within a certain radio coverage area.
However, a white pole with three leaves on it is a wind power plant. The kinetic energy of the wind is converted into electrical energy. Wind energy is a non-polluting energy source. Using wind energy to generate electricity is very environmentally friendly and can generate huge amounts of electricity. Energyglobal wind power is about 2.74 × 10^9 MW, of which the available wind power is 2 × 10^7 MW, which is 10 times larger than the total amount of hydropower that can be developed and used on Earth.
So a white pole with three leaves on it is a wind power plant.
In short, it is - single blade type: under the same size, in order to obtain the same amount of energy, single blade type requires higher speed, and at the same time , this means more noise, visual pollution, greater ecological impact; unbalanced rotation, need for counterweight, advantages of high speed - lower ratio gearbox, lighter mass are weakened and low efficiency; So there is no cost advantage. Double blade type: The advantages and disadvantages are similar to the single blade type; Three-blade type: it can achieve its own dynamic balance, has a speedLower esse, low noise and is not easily struck by birds. More blades: low speed, requiring a high ratio gearbox, heavy, causing problems in manufacturing, installation, operation and maintenance, easy to hit birds, oh, no, these are d blows 'birds ; (The blades are relatively large in size, with a diameter of up to tens of meters.) In summary, three-leaf blades are most suitable.