真空接触器是真空开关的核心部分,是60年代发展起来的新型开关,由于它具有体积小、容量大、分断力强、寿命长、安全可靠等特点,目前已在全国煤矿推广使用。随着真空开关的大量推广,一些煤矿已面临着繁重的检修任务及使用真空开关后引起的三相不同步、过电压、烧电机……等问题。产生这些问题的原因,目前尚在探索之中,而最主要的因素是真空接触器的正常使用,这就要求对新旧真空接触器的各项参数进行全面、准确的检测,严 Vacuum contactor is the core part of the vacuum switch, is a new type of switch developed in the 1960s, because of its small size, large capacity, breaking strength, long life, safe and reliable, and so on, has been in the country to promote the use of coal mines. With the large number of vacuum switch promotion, some coal mines have faced heavy maintenance tasks and the use of vacuum switch caused by three-phase asynchronous, over-voltage, burning motor ...... And so on. The causes of these problems are still under investigation, and the most important factor is the normal use of the vacuum contactor, which requires the old and new vacuum contactor parameters of a comprehensive and accurate detection of strict