Switchgear plays a very important role in the power system. Its working principle is to realize the switching and protection of the circuit channel through the coordination and interlocking of various switching devices. Among them, the high-voltage circuit breaker is the most critical equipment, which can use the spring mechanism to cut off the circuit when the current is overloaded or short-circuited to protect the safety of the entire power system.
In the power system, Switchgear must have the characteristics of high performance, high reliability, high safety, high environmental protection and low loss to ensure the normal operation of various electrical equipment.
