The CV1-40.5/CV2-40.5 indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is designed by our company using advanced CAD/CAM/CAE technology A new generation of high-voltage electrical products independently developed and developed with manufacturing technology. Circuit breakers are used for AC 50Hz, rated voltage 40.5kV and below It plays a control and protection role in the power grid and is widely used in industrial and mining enterprises, power plants, and substations as a source of load current, overload current, and fault electricity The use of flow.