Description
Gas-insulated ring main unit SafeRing
Medium voltage (MV) SF6-insulated ring main unit for secondary distribution 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
Key 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
Key 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
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