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Vacuum RMU (Box)
Model:
HXGN口-12
Overview:
The HXGN-12 Vacuum Ring Main Unit (RMU) is suitable for distribution systems in industrial and mining enterprises, residential communities, high-rise buildings, and schools. It serves as an indoor AC 10kV, 50Hz ring main unit power supply module and terminal distribution equipment. Capable of interrupting or closing rated load currents and transformer no-load currents, as well as interrupting or closing capacitive currents in overhead lines, cable circuits, or capacitor banks over specified distances. Functions within power systems for protecting distribution equipment, distributing electrical energy, and providing transformer protection and control.
• The enclosure structure of the ring main unit (RMU) cabinet is fabricated from cold-rolled steel plate or aluminum-zinc coated steel plate, ensuring robust construction and excellent sealing with an IP3X enclosure protection rating

• The RMU cabinet is designed with two completely isolated metal compartments: the busbar compartment and the switch compartment. No additional isolation panels are required, facilitating safe maintenance and fuse replacement. The busbar compartment is fully enclosed with metal, and busbars are connected through wall bushings. As required, a fully isolated instrument compartment may be installed in front of the busbar compartment for dedicated secondary equipment. The switch compartment primarily houses primary equipment and cable connections. Its door is mechanically interlocked with the switch to achieve five-position interlocking, ensuring simplicity and reliability. The door features an observation window for inspecting isolation breaks and monitoring operational status;

• This high-voltage load switch cabinet comprises a cable compartment, busbar compartment, and instrument compartment. The front door incorporates a locking mechanism that permits opening only after disconnecting high-voltage power and closing the earthing switch. It provides reliable five-position interlocking functionality.