HRM-SI
HRM-SI Solid Insulated Ring Main Unit
Eco-friendly solid insulated ring main unit using vacuum and epoxy insulation technology. Eliminates greenhouse gas usage while maintaining high performance for medium voltage distribution applications.
Key Features
- SF6-free: vacuum + solid epoxy insulation
- Environmentally friendly design
- Maintenance-free sealed construction
- Modular and extensible architecture
- Integrated protection relay option
- SCADA-ready with IEC 61850 support
- Indoor and outdoor rated enclosure
Technical Specifications
| Rated Voltage | 12kV / 24kV |
| Rated Current | 630A (ring), 200A (tee-off) |
| Breaking Capacity | 20kA (vacuum CB) |
| Insulation | Solid epoxy resin + vacuum |
| Configurations | RRC, RRCC, RCR |
| Communication | IEC 61850 / DNP3 |
| Operating Temperature | -25°C to +55°C |
| Standards | IEC 62271-200 |
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