Medium Voltage Switchgear is a key equipment for 3.6kV~40.5kV voltage level in power system. It has the characteristics of compact structure, reliable operation and convenient maintenance, and can realize the opening, closing, protection and isolation functions of the circuit. Its shell is usually designed with metal enclosed type (such as galvanized steel plate or stainless steel) or environmentally friendly gas insulation (such as SF₆ or dry air). The internal conductive parts are mostly made of copper or copper alloy. The contact material is often made of silver alloy or copper-tungsten composite material to improve the arc resistance performance. The insulating medium is selected from epoxy resin, silicone rubber or vacuum arc extinguishing technology to ensure high insulation strength and long life. Medium voltage switchgear is widely used in industrial power distribution, commercial buildings, data centers, rail transportation, new energy (such as wind power, photovoltaic power stations) and smart grids. It is suitable for ring network cabinets, circuit breakers, load switches and combined electrical appliances (such as inflatable cabinets C-GIS) and other scenarios to ensure the safe and stable operation of the power system and support intelligent monitoring and control functions.