Since the Second Industrial Revolution in the mid-nineteenth century, mankind has ushered in the electric age. From manual operation to automation, from wired telephones to wireless communications, etc., human beings are inseparable from electricity and related technologies in the process of pursuing progress and freedom, and the use of electrical energy has greatly promoted the development of human society. With the widespread use of various electrical equipment in human production and life, electric energy has become the main form of energy in the energy system and is closely related to the daily life of human beings.