XGW-12 SF6 Ring Main Unit

Brief Introduction 

 

Ring Main Units - switches can be freely assembled in a completely sealed tank filled with SF6 gas, which could be both manual and motor operation. FTU/RTU is operational. Up to 4 to 7 switches can be assembled. Load break switches, circuit breakers and fuse-switch combination can be freely assembled. Cables exit from front side or rear side of the device. Operating is controlled by spring mechanism; permanent electromagnetic protection is optional configuration. Circuit breaker can adopt self-powered micro-computing relay or normal micro-computing protection relay.

  

Technical Data

Rated voltage                                          *2kV

Rated current                                          **0A

Rated short-time withstand current          *0kA,4s

Rated peak withstand current                  *0kA

1 min power frequency withstand            *2kV

Lightning impulse withstand voltage         **0kV

Gas pressure                                          0.*3MPa

Mechanical life                                       ***0

Degree of protection                              IP*7

Annual Leakage rate                              0.3%

 

Technical Features

Stainless steel enclosure, filled with SF6 gas

Fully Shield and insulated,

Maintenance-free

Compressed-air load switch, high capacity and long life expectancy

Visible interrupting gap

Reliable interlocking