Hosted within the specified time, closing and breaking currents under abnormal

Can carry, closing and breaking the normal operation of the line currents can also be carried within the stipulated time, closing and breaking currents under abnormal (such as short-circuit current) switching equipment, power system protection and operation of the major electrical devices. Circuit-breaker many different types, but  power transformers  circuit are electrically conductive, insulating support member, and the interrupter  electric meter  composed of several parts. Basic structure include: ① a conductive main circuit, through the movable contact,  Voltage stabilizer  of the contacts on the circuit implementation and isolation; ② interrupter, the circuit breaking arc generated during the sealed chamber under a high pressure in rapidly within tens of milliseconds off, cut off the circuit;