High-Voltage Switchgear Mechanical Online Monitoring System
Circuit Breaker (CB)
Equipped with arc-extinguishing device. It can switch load current and interrupt short-circuit fault current automatically, realizing circuit control and equipment protection.
The circuit breaker is core switching & protection equipment in substation. It can switch normal load current and interrupt short-circuit fault current automatically.
- VCB (Vacuum Circuit Breaker)
Arc quenched in vacuum. Widely used in 10~35kV indoor switchgear, no SF₆ gas required, low maintenance.
- GCB (SF₆ Gas Circuit Breaker)
Use sulfur hexafluoride as insulation & arc-quenching medium. Including outdoor SF6 circuit breaker and built-in breaker module inside GIS, applied for 110kV and above high voltage substation.
