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由于真空灭弧室比其它形式的灭弧装置优越得多,因此在配电装置中得到了越来越广泛的应用。真空灭弧室所用材料的体积最小、寿命最长,在整个使用过程中,触头接触时不需要消耗能量;工作时无声、干净,在分断电流后,电气强度的恢复时间最短,因此,还可以用来通断较高频率的电流。但是,在应用真空灰弧室的时候,应当计算好真空灭弧室在切断电流并经几个周期以后,产生击穿的概率。弧光放电的增强就出现击穿现象,弧光放电时间的长短,取决于电路的各个参量。可能在数百微秒到数十毫秒范围内。击穿后,在极大多数情况下,真空灭弧室的电气强度将得到提高,并且击穿现象对真空开关所切断电路的
As the vacuum interrupter than other forms of interrupter is much superior, so in the distribution device has been more and more widely used. Vacuum interrupter materials used in the smallest, longest life expectancy in the entire process, the contacts do not need to consume energy contact; work silent, clean, breaking current, the electrical strength of the recovery time is the shortest, therefore, also Can be used to turn off the higher frequency current. However, when applying a vacuum arc chamber, the probability that the vacuum interrupters will break down after a few cycles of current flow should be calculated. Arc discharge enhancement occurs breakdown phenomenon, the length of arc discharge time, depending on the circuit of the various parameters. It may be in the range of hundreds of microseconds to tens of milliseconds. After breakdown, in most cases, the electrical strength of the vacuum interrupter will be improved, and the breakdown of the vacuum switch circuit