SafeRing Gas-insulated Ring Main Unit
Medium voltage (MV) SF6-insulated ring main unit for IEC secondary distribution applications up to 40.5 kV, 630A
SafeRing is a ring main unit (RMU) for the secondary distribution network. It is available in 18 different configurations suitable for most switching applications within the range from 6 to 40.5 kV. The standardized RMU configurations, which are mostly required within a distribution network, can be extensible upon request.
SafeRing is a completely sealed system with a stainless steel tank containing all live parts and switching functions. A sealed steel tank with constant atmospheric conditions ensures a high level of reliability as well as personnel safety and a virtually maintenance-free system.
Product scope
- 12-24 kV, 630A
- 36-40.5 kV, 630A
Benefits
- Completely sealed system
- Safe and reliable operation
- Smart grid enabled
- Compact design with small footprint and low physical weight
- Most typical variants: RMU with standard variants up to 5 modules (12-24kV) or 4 modules (36kV)
- Harmonized for higher flexibility: Select SafePlus switchgear for more options
Features
- Minimal maintenance
- No live parts exposed
- One full range up to 40.5kV
- Module width: 325mm for 12-24kV, 420mm for 36kV
- Optional integrated remote control and monitoring unit
- Optional arc suppressor: No gases released even in arc fault cases
- Type tested according to all relevant IEC standards