Cut off the nodes of high-voltage lines and the classification of power plants
● Equipment installation
● Reduce line load
The above are artificial, planned removal of the route
● Cut off the line in case of failure
Irregular, anytime, anywhere, because the fault is uncertain-so an automatic removal device is needed, which is the relay protection device.
1. Thermal power plant: A factory that converts the chemical energy of coal, oil, natural gas or other fuels into electrical energy.
It is mainly composed of three parts: combustion, soda, and electrical system; it can be divided into two types: gas-fired thermal power plant and thermal power plant
Normal operating life is 25 years.
2. Nuclear power plant: all use the energy released during nuclear fission to generate electricity.
3. Hydropower plants: use hydropower to generate electricity, which can be divided into three types: dam type, runoff type (such as Gezhouba), and pumping animal energy; the hydraulic unit is flexible and can quickly adapt to the sudden change in load, generally from unit startup, grid connection to belt The load can be completed in just a few minutes; the operating life is usually 50 years.
4. Wind power plant