Vacuum load break automatic recloser switch mainly includes three parts: vacuum arc extinguishing chamber, electromagnetic or spring operating mechanism, support and other components. At pole mounted auto recloser manufacturer, the working principle of pole mounted recloser is: when the moving and static contacts are opened under the action of the operating mechanism, an arc is generated between the contacts, and the contact surface volatilizes steam at high temperatures. Because the contact is designed in a special shape, a magnetic field is generated when the current passes through. Under the action of this magnetic field, the arc moves rapidly along the tangent direction of the contact surface, and some metal steam condenses on the metal cylinder (shielding cover). The arc extinguishes when it naturally crosses zero, and the dielectric strength between the contacts recovers rapidly. This is the principle of vcb breaker operation. The arc extinguishing principle of the auto recloser circuit breaker is: like any kind of high-voltage switch, extinguishing the arc depends on the interrupter chamber. The interrupter is the heart of a high-voltage switch. When the movable and static contacts of the switch are separated, under the action of high electric field, the media particles around the contacts become ionized, thermally free and collisionally free, thus producing an electric arc. As one of auto recloser manufacturer, we manufacture VCB recloser circuit breaker according to its working principle of vcb. If the moving and static contacts are in an absolute vacuum, when the contacts are opened and closed, no arc is generated because there is no material present, and the circuit is easily broken.  If you want to know more details about VCB breaker working principle, please contact us.