CV1-24 indoor high-voltage vacuum circuit breaker (insulated cylinder type), CV2-24 indoor high-voltage vacuum circuit breaker (fixed sealed pole type) (hereinafter referred to as The circuit breaker is a new generation of high-voltage vacuum circuit breakers independently developed and developed by our company using advanced CAD/CAM/CAE design and manufacturing technology Device. This circuit breaker is used for control and protection in power grids with AC 50Hz and rated voltage of 24kV and below, and is widely used in industrial and mining enterprises and substations Power stations and other places.