The box-type opening and closing station is mainly used for 10kV cable ring power supply or terminal power supply system for receiving and distributing electric energy. This product is equipped with GT-SRM-12 series SF6 gas-insulated ring main unit manufactured by our company. It is fully insulated, fully sealed, dust-proof, corrosion-resistant and maintenance-free. It can realize different combinations of solutions and meet various connection methods. . The RMU can also be combined with a 10kV power supply PT, a distributed power supply module, a DTU, and a communication control terminal to realize automation of the medium voltage distribution network, which greatly improves the reliability of the city's power distribution network. Its simple, convenient and flexible connection and combination methods, economical, reliable, and durable structural characteristics, become the preferred equipment for distribution network cable engineering.