The HXGN-12(24) series SF6 fully insulated ring main unit switch cabinets (hereinafter referred to as "gas-filled cabinets") are suitable for three-phase AC power supply systems with rated voltages of 12kV (24kV), including dual-power radial power supply systems and single-power distribution systems. They are used for the control and protection of transformers, capacitors, cable lines, and overhead lines, and can also serve as the high-voltage distribution part of box-type substations. They are the main high-voltage complete switchgear equipment for the urban power grid renovation in China. 

Performance features: 

Full insulation: All the primary conductive components of this series of gas-filled cabinets are installed within a sealed stainless copper enclosure filled with SF6 gas. The enclosure has a protection level of IP67, allowing it to be used in humid, salt-spray, and heavily polluted environments, and it can also be applied in areas prone to floods. 

Small size: Due to the SF6 gas insulation in the gas chamber, the insulation distance between the charged parts and to the ground has been significantly reduced. The entire cabinet is small in size, light in weight, and has high mechanical strength. 

Flexible expansion: This series of gas-filled cabinets are designed based on a modular concept and offer top expansion and side expansion options for users to choose from, significantly enhancing the flexibility of expansion. Comprehensive functions: The gas-filled cabinets meet the "five prevention" requirements. They adopt advanced welding methods and have undergone strict inspections. The annual leakage rate of SF6 gas is less than 0.05%, and the designed maintenance-free service life is up to 50 years.