Vacuum interrupter for the vacuum circuit breaker in the heart of its nerve center actuator

Medium voltage vacuum circuit breaker technology and vacuum breakers are generally made ​​of a conductive arc system, body, conveyance systems and actuator components. Wherein the vacuum interrupter chamber of vacuum circuit breakers in the heart of its nerve center actuator, both vital to the vacuum breaker. Medium voltage vacuum circuit breaker block diagram. Vacuum circuit breakers have decades of  Voltage stabilizer history, becoming the dominant medium voltage indoor products, production, new  power transformers  to emerge. Now indoor vacuum circuit breaker has formed a huge model system, there are hundreds of models. For ease of understanding, this article from product development, structure evolution and product type etc. is analyzed as follows. From the past, present, and will be run, which can be  mcb circuit breaker  four stages: the initial stages of development; development stage; improvement phase; module intelligent stage. First stage: the early stage of development during this period, the use of copper contact materials such as bismuth, breaking, fight wear and other properties are poor, performance is not stable enough, stop only at the level of 20kA or less, compared with less oil circuit breakers , no significant advantages. It uses actuator, either electromagnetic or spring mechanism, to reach 10,000 times life has a greater degree of difficulty.