The XGN15-24 AC High-voltage SF₆ Ring Main Unit (RMU) is a new high-voltage electrical product developed by Daya Electric Group, incorporating advanced foreign technologies and tailored to domestic power grid and urban network renovation needs.

Having passed rigorous type tests and long-term trial operations, all its technical performance indicators fully meet national standards. The main switch, operating mechanism and components of the unit cabinet adopt the group’s self-produced FLN36-24 SF₆ switchgear, available in manual and electric operation modes.

Fabricated by riveting aluzinc-coated steel sheets processed via CNC machine tools, the cabinet features reliable mechanical interlocks and misoperation prevention functions. Boasting compact size, light weight, aesthetic appearance, easy operation, long service life, high parameters, pollution-free operation and minimal maintenance, the product is widely used in industrial and mining enterprises, high-rise buildings, residential quarters, schools, etc., for 24kV power distribution system ring network and terminal power distribution.

Internally fitted with an SF₆ load switch or a combined SF₆ load switch-fuse unit, it can close and break rated load current, close rated short-circuit current and break transformer no-load current. The combined unit, paired with fuses, can break 31.5kA short-circuit current in one go, performing control and protection roles in power systems.