高壓絕緣監測儀采用直流高壓注入法對電纜或電機繞組等進行絕緣測量，測試電壓為DC2650V，儀yi器qi與yu電dian路lu接jie觸chu器qi或huo斷duan路lu器qi輔fu助zhu觸chu點dian聯lian鎖suo控kong製zhi，實shi現xian電dian機ji回hui路lu通tong電dian時shi絕jue緣yuan監jian測ce儀yi退tui出chu監jian測ce與yu電dian網wang分fen離li，線xian路lu斷duan電dian時shi絕jue緣yuan監jian測ce儀yi自zi動dong開kai始shi對dui線xian路lu進jin行xing絕jue緣yuan監jian測ce，雖sui然ran絕jue緣yuan監jian測ce儀yi隻zhi是shi在zai母mu線xian斷duan電dian後hou監jian測ce，但dan考kao慮lv到dao其qi直zhi接jie與yu高gao壓ya母mu線xian連lian接jie因yin此ci絕jue緣yuan監jian測ce儀yi還hai配pei置zhi一yi耦ou合he器qi，用yong於yu對dui線xian路lu和he絕jue緣yuan監jian測ce儀yi主zhu機ji的de保bao護hu。