In contact with the wall of the arc splitter plates, accelerated cooling of the arc

Using the principle of magnetic arc blow a circuit breaker. Column using a magnetic field by the electromagnetic force on the arc that drives the arc into the grid sheet is  electric transformer  a set of arc chamber wall of the arc in contact with the gate sheet, accelerated cooling of the arc, to enhance ionization of the arc off quickly. In  power transformers with the gate films of different materials, magnetic blow circuit breakers are generally divided into metal gate chip and insulating grid sheet two. Magnetic blow-piece metal gate structure of the circuit  circuit breakers  in principle, a gate conductive film is a metal, the electromagnetic force of the arc into a grid sheet, the arc is divided into a number of short, when the current zero after every a short arc gap on the dielectric strength can be up to several hundred volts.