11kV~550kV Live-Tank SF6 Circuit Breaker Series, Flexible Configuration, Reliable Performance for Harsh Outdoor Environments
General Specification
- Rated Voltage: 11kV /24kV /36kV /72.5kV /123kV /145kV /245kV /362kV /420kV /550kV
- Rated Current: 1250A /2000A /2500A /3150A /4000A /5000A
- Frequency: 50Hz / 60Hz
- Rated Short-time Withstand Current (3s): 20kA /25kA /31.5kA /40kA /50kA /63kA
- Rated Short-circuit Making Current (peak): 50kA /63kA /80kA /100kA /125kA /158kA
- Operating sequence: O-0.3s-CO-3min-CO
RHB is outdoor live tank SF6 circuit breaker complying with IEC 62271-1 and IEC 62271-100 and KEMA type tested. Rated voltage ranges from 11kV up to 550kV, rated current up to 5000A, short-circuit breaking current up to 63kA. It adopts hybrid self-blast puffer arc quenching and oil-free spring mechanism. Composite or porcelain insulators are optional. It is widely applied in transmission substations and power plants for circuit control and fault protection.