A Ring Main Unit (RMU) is a compact, pre-assembled switchgear designed specifically for ring-type distribution networks. Unlike larger switchgear panels that are built from individual components, an RMU integrates two or more load break switches and busbars in a single factory-sealed enclosure. HXGN15-12 is designed for ring networks where power flows in a loop, allowing any section to be isolated without interrupting the rest of the network — perfect for improving distribution reliability.

SF6-insulated RMUs use sulfur hexafluoride gas as the arc-quenching and insulation medium — they are more compact and require less maintenance but have higher environmental impact. Vacuum-insulated (air-insulated) RMUs use vacuum interrupters in an air environment — they are more environmentally friendly and typically have a longer service life but may be slightly larger. For most standard applications, both work well. GOHO offers both types — we'll recommend based on your space constraints, environmental policies, and maintenance preferences.

HXGN15-12 is modular and can be configured with 2 to 6 ways depending on your network requirements. The most common configurations are 2-way (incoming + outgoing) and 3-way (ring-in, ring-out, and transformer feeder). Each way can be equipped with a load break switch, circuit breaker, or fused switch. We also offer metering compartments and protection relay bays. Tell us your single-line diagram and we'll design the exact configuration.

Yes, HXGN15-12 can be equipped with motorized operation mechanisms and FTU (Feeder Terminal Unit) controllers for automatic fault detection, isolation, and network reconfiguration. This enables self-healing ring networks where power is automatically restored within seconds after a fault. The system can be integrated with your existing SCADA or distribution automation platform using standard communication protocols like IEC 61850, Modbus, or DNP3.

Standard 2-way and 3-way HXGN15-12 units typically ship within 15-20 working days from order confirmation. Custom configurations with special protection relays, metering, or automation features may take 25-30 working days. All units undergo full factory testing including dielectric withstand test, partial discharge measurement, and mechanical operation tests before shipment. We can also arrange third-party inspection upon request.