HXGN15-12 sulfur hexanitride ring network switchgear (hereinafter referred to as ring network cabinet) is a new generation of high-voltage electrical products successfully developed by our company by introducing foreign advanced technology and according to the requirements of urban power grid transformation. After strict type test and long-term test run assessment, all technical performance indexes meet the national standards. The main switch, operating mechanism and components of the unit cabinet adopt fln36-24 SF6 switchgear, and its operation mode is divided into manual and electric. The cabinet body is made of aluminum coated zinc plate processed by NC machine tool, and has reliable mechanical interlocking and anti misoperation function. This product has the remarkable characteristics of small volume, light weight, beautiful appearance, simple operation, long service life, high parameters, no pollution and less maintenance. It is widely used in industrial and mining enterprises, high-rise buildings, residential quarters, schools, etc. as ring network power supply and terminal power distribution of 24kV power distribution system. Sulfur hexanitride load switch or combination of sulfur hexanitride load switch and fuse is installed in the ring network cabinet, which can turn on and off the rated load current, turn on the rated short-circuit current and turn off the no-load current of transformer. After the combination is equipped with fuse, it can turn off 31.5KA short-circuit current once, which plays a role of control and protection in the power system.