Rapid and Safe Arc Quench by Using External Magnetic Coil in Power Interruption

Low-voltage arc quench is one of the most processes for a successful power interruption in circuit breakers. Typical breakers are designed to switch off fault current within half cycle, less than 10 milliseconds, which requires an efficient and thus poses great challenges interruption. Apart from using electronics, very expensive low capacity, classical that uses stack steel plates split fault-current into many sub-arcs still dominant both industry residential installations. Due high current, self-induced magnetic field will drive towards force being spitted sub-arcs, arc-steel plate interfaces generates multiple voltage drops. Once sum all drops increases exceeds source voltage, extinguish quench. ferromagnetic effect, dramatically during splitting by plates. However, have reversed direction on sides pushes opposite directions prevents concurrent even splitting. In this report, we report new technique compensate background coil, thus, give simultaneous guarantee