12kV SF6 Gas-Insulated Ring Main Unit Switchgears
Hifuture IA series SF6 Gas Insulated Ring Main Unit (RMU) has a compact, safe, user-friendly and maintenance-free design. Its modular design of Load Switch Unit, Fuse Switch Unit, Vacuum Interrupter Unit, and Incoming Busbar Unit, provides customers with flexible tailor made options. It is mainly used for city power distribution, commercial centers, shopping centers, office buildings, industrial areas and other locations where the load is concentrated or the demand is increasing.
Ratings |
Unit |
P Module |
Fuse unit |
Rated Voltage |
kV |
12 |
Rated Current |
A |
200 |
Power frequency withstand voltage 1 min |
Phase to earth /phase to phase |
kV |
42 |
Insulating distance |
kV |
48 |
Impulse withstand voltage |
Phase to earth /phase to phase |
kV |
|
Insulating distance |
kV |
|
Rated closed loop breaking current |
A |
|
Rated cable-charging breaking current |
A |
|
Rated breaking inductive current |
A |
|
Rated short-time withstand current 4s |
kA |
|
Rated peak withstand current |
kA |
|
Rated transfer current |
A |
1700 |
Rated short circuit breaking current |
kA |
Limited by high voltage fuse links |
Rated short circuit making current |
kA |
|
Rated short circuit breaking times |
times |
|
Rated short circuit making times (load switch/grounding switch) |
times |
|
Rated current breaking times |
times |
|
Machine operation times (load switch/ground switch) |
times |
5000/2000 |
RMU can be customized according to customers' request. More detals about this product, pls contact us.