The XGN15-12 series of AC high-voltage sulfur hexafluoride ring network switchgear is anew generation of metal-enclosed switchgear with sulfur hexafluoride load switch as themain switch and air insulation for the entire cabinet. The ring network cabinet ismetal-clad and enclosed, with air insulation inside the cabinet, suitable for terminalsubstations and adaptable to ring network power supply connections. This series of ringnetwork cabinet equipment adopts modular components, selects SF6 load switches,grounding switches, fuses, transformers, secondary instruments, and the combination ofthese components can meet the requirements of various design schemes. The product hasa reliable mechanical interlock device to meet the requirements of "five-proof" functions.It is suitable for AC 50Hz, 12kV power systems, and is widely used in industrial and civilcable ring networks and power supply terminal projects. It is particularly suitable forurban residential area distribution, small secondary substations, switching stations,industrial and mining enterprises, shopping malls, airports, subways, wind power genera-tion, hospitals, stadiums, railways, tunnels, etc.