HV Switchgear
XGN15-12 SF6 Ring Main Unit
12kV SF6-insulated ring main unit for compact secondary distribution and cable networks.
XGN15-12 is a 12kV SF6 gas-insulated ring main unit (RMU) with load-break switch and optional SF6 or vacuum circuit breaker. Its compact, sealed structure suits cable distribution in urban networks, wind/solar sites and industrial parks.
Key Technical Parameters
| Rated voltage | 12 kV |
|---|---|
| Rated current | 630 A |
| Transfer current | 1700 A (load switch – fuse) |
| Rated short-circuit breaking | 20 kA (breaker) / 50 kA (fuse) |
| Rated peak withstand | 50 kA |
| Protection degree | IP67 (tank) |
| Standards | GB/T 3906-2020, IEC 62271-200 |
Structure & Features
- Sealed SF6 tank with busbar, load switch and earthing switch.
- Optional combined fuse-switch and vacuum breaker units.
Application Scenarios
- Cable ring networks, compact substations and renewable energy collection.
Model Designation & Variants
- XGN = fixed SF6 enclosure; 15 = series; 12 = rated voltage 12kV.