CYG provides series of column mounted products based on the excellent arc extinguishing and insulation performance of SF6 load switches, combined with column mounted automatic reclosers with fault self diagnosis and remote communication functions, to achieve rapid isolation and automatic recovery of line faults. With the assistance of intelligent drop fuses that are easy to operate and accurately protected, the three work together to build a comprehensive automated monitoring and protection network from the main line to the end of the branch, significantly improving the reliability of distribution network power supply and the level of intelligent operation and maintenance.