Overview: 

 The power system is an electricity production and consumption system composed of power generation, transmission, distribution, electricity sales and consumption. Among them, the power industry covers four items: power generation, transmission, distribution and power supply. The power industry is a basic industrial industry that converts various types of primary energy into electricity through corresponding power generation equipment, and then transmits electricity from power plants to end users through power transmission and distribution networks to provide end users with electricity with different voltage levels and different reliability standards and other power auxiliary services.