Today, I would like to introduce to you that the "vacuum circuit breaker" is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; Advantages, the application in the distribution network is more popular. Next, I will tell you in detail "what is a high-voltage vacuum circuit breaker and the role of a high-voltage vacuum circuit breaker"

1. What is a high-voltage vacuum circuit breaker?

"Vacuum circuit breaker" is named because both the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and no need for maintenance for arc extinguishing. The application in the power grid is more popular. The vacuum circuit breaker is an indoor power distribution device in a 3-10kV, 50Hz three-phase AC system. It can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations. In the places of maintenance and frequent operation, circuit breakers can be configured in central cabinets, double-layer cabinets and fixed cabinets to control and protect high-voltage electrical equipment.

Second, the role of high-voltage vacuum circuit breakers

(1) Controlling effect. According to the needs of the operation of the power system, some or all of the electrical equipment and some or all of the lines are put into or out of operation.

(2) Protective effect. When a certain part of the power system fails, it cooperates with protection devices and automatic devices to quickly remove the faulty part from the system, reduce the scope of power outages, prevent the expansion of accidents, protect various electrical equipment in the system from damage, and ensure that the system The trouble-free part operates safely.