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Ring Main Units (RMU) / Solid-Insulated RMU
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.
Key Specifications
StandardsIEC 62271-200 (ref. GB 3906)
Rated Voltage12 kV
Rated Frequency50 Hz
Rated Current630 A
Power-frequency Withstand42 / 48 kV (isolation gap)
Product Features
- Solid-insulated, low partial discharge (< 10 pC)
- Sealed IP67 body, maintenance-free
- 10 000-operation mechanical life
- Internal arc classified (AFLR, 25 kA, 1 s)
- Compact for prefabricated / urban substations