The XGN15-12 (L) indoor AC high-voltage sulfur hexafluoride ring network switchgear is a new generation of metal enclosed switchgear that uses sulfur hexafluoride load switches as switches and adopts air insulation throughout the cabinet. It is suitable for distribution automation, compact and expandable, has the characteristics of miniaturization, full parameters, low price, and less maintenance. This product has a three position arc extinguishing chamber with "closing opening grounding" function, equipped with "five protections" (to prevent load opening and closing of the main switch; to prevent accidental entry into the live compartment; to prevent accidental opening and closing of the main switch; to prevent live hanging of the grounding wire; to prevent the grounding switch from transmitting power in the grounding position), reliable interlocking, high insulation strength of the fracture, large creepage distance design, and pressure cover protection at the outlet end. Special dynamic sealing and fixed sealing design, combined with advanced technical performance and lightweight and flexible assembly scheme, can fully meet the constantly changing requirements of the market. It is a new generation of high-voltage switchgear equipped in urban power grids. This product is used in three-phase AC 10KV, 50Hz power systems, and is used in industrial and mining enterprises, high-rise buildings, residential communities, prefabricated substations, and other places to disconnect and close load currents, fault currents, control and protect lines and distribution transformers.