Indoor SF6 Circuit Breaker

Function of SF6 Gas Circuit Breaker

SF6 circuit breakers employ sulfur hexafluoride (SF6) gas for both arc quenching and insulation. This colorless, odorless, non-toxic, and non-flammable inert gas boasts exceptional dielectric strength and superior arc-extinguishing capabilities, far surpassing traditional insulating gases. Consequently, its use in electrical equipment allows for smaller designs, eliminates fire hazards, and enhances the reliability and safety of power systems.
Thanks to SF6’s smooth current interruption characteristics, these breakers prevent current chopping and the resulting switching overvoltages. This excellent feature ensures a prolonged electrical lifespan and has no adverse effects on the equipment’s operational stresses, dielectric integrity, or thermal strain. The breaker’s poles, which house the arc-quenching chambers, are hermetically sealed systems designed for a lifetime of maintenance-free operation.

Application of Indoor SF6 Circuit Breaker

SF6 circuit breakers are a perfect upgrade for aging power infrastructure, especially in situations where the insulation of motors and cables is sensitive to dielectric stress. Liyond SF6 circuit breakers offer a rock-solid solution for the control and protection of power systems, finding wide application in transmission and distribution networks, substations, as well as the control and protection of motors, transformers, and capacitor banks.
Indoor SF6 circuit breakers, with their compact footprint and top-notch insulation performance, are right at home in space-constrained indoor substations and distribution rooms. They stand up well to frequent operation, ensuring the stable running of critical equipment and slashing maintenance downtime. Furthermore, their environmentally friendly characteristics make them an ideal fit for indoor locations with strict environmental requirements, helping to build a safer and more reliable power distribution network.