Ring Main Units (RMU)
12 kV metal-enclosed ring-network switchgear for secondary distribution — gas-insulated and solid-insulated compact load-switch and modular C-GIS units for urban grids and prefabricated substations.
HLXGN-12 Gas-Insulated Ring Main Unit (12 kV)
Unit-type, gas-insulated metal-enclosed ring-network switchgear for 12 kV, three-phase 50 Hz distribution and ring-network systems, designed for urban grids, prefabricated / compact substations and renewable-energy collection. A sealed gas compartment (IP67, ≤ 0.01 % annual leakage) houses the load-break switch, giving a maintenance-free, compact and fully interlocked unit with a 10 000-operation mechanical life.
SLG-12 Solid-Insulated Compact Ring Main Unit (12 kV)
A solid-insulated compact ring-main unit for 12 kV ring-network and radial distribution, using a load-break switch as the main switching device in a fully insulated, factory-assembled enclosure. Low partial discharge (< 10 pC at 14.4 kV) and a sealed IP67 switchgear body give a maintenance-free, space-efficient unit for compact secondary substations and urban installations.
HLC-12 Gas-Insulated Modular RMU / C-GIS (12 kV)
A gas-insulated, fully sealed modular ring-main unit (C-GIS style) for 12 kV ring-network and cable distribution. Built from independent functional units — C (load-switch / cable), F (load-switch-fuse) and V (vacuum circuit breaker) — so configurations can be combined per project. A pressurized gas tank (IP67, ≤ 0.01 % annual leakage) and IK10-rated, IP54 switchgear body deliver a compact, maintenance-free unit for urban and underground networks.