Electric power is the main energy and motive force of modern industrial production and the material and technological basis of modern civilization. Without electricity, there would be no modernization of industry, no modernization of the entire national economy. The task of the power supply and distribution system is to supply and distribute the electric energy needed by users, and it is an important part of the power system. Distribution Network and power supply and consumption equipment take on the task of supplying power to users directly, which is one of the basic links of generation, transmission, distribution and consumption.