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絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)視(shi)儀是一種用于監(jian)(jian)(jian)測(ce)(ce)電(dian)(dian)力系(xi)統中絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)狀況的(de)設備。其(qi)工(gong)(gong)作原(yuan)理(li)是通過(guo)測(ce)(ce)量(liang)電(dian)(dian)網(wang)對(dui)地(di)(di)的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻值來判斷(duan)電(dian)(dian)網(wang)對(dui)地(di)(di)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)是否(fou)良好。當電(dian)(dian)源(yuan)(yuan)(yuan)正常時(shi),絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)視(shi)儀的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)測(ce)(ce)繼(ji)電(dian)(dian)器接通,對(dui)地(di)(di)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)測(ce)(ce)電(dian)(dian)路處于監(jian)(jian)(jian)測(ce)(ce)狀態。當電(dian)(dian)源(yuan)(yuan)(yuan)出(chu)現接地(di)(di)故障或絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)劣化時(shi),絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)測(ce)(ce)繼(ji)電(dian)(dian)器斷(duan)開,報警裝(zhuang)置發(fa)出(chu)信號,并(bing)切(qie)斷(duan)電(dian)(dian)源(yuan)(yuan)(yuan)。絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)視(shi)儀還可(ke)以(yi)檢測(ce)(ce)電(dian)(dian)纜的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)狀況,通過(guo)測(ce)(ce)量(liang)電(dian)(dian)纜的(de)泄(xie)露(lu)電(dian)(dian)流(liu)(liu)來評估(gu)電(dian)(dian)纜的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)質(zhi)量(liang)。正常情況下,電(dian)(dian)纜的(de)泄(xie)露(lu)電(dian)(dian)流(liu)(liu)很(hen)小,當電(dian)(dian)纜出(chu)現絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)劣化或破(po)損(sun)時(shi),泄(xie)露(lu)電(dian)(dian)流(liu)(liu)會增(zeng)加,絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)視(shi)儀會檢測(ce)(ce)到并(bing)發(fa)出(chu)警報。總之,絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)監(jian)(jian)(jian)視(shi)儀的(de)工(gong)(gong)作原(yuan)理(li)是通過(guo)測(ce)(ce)量(liang)電(dian)(dian)網(wang)對(dui)地(di)(di)的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻值和電(dian)(dian)纜的(de)泄(xie)露(lu)電(dian)(dian)流(liu)(liu)來監(jian)(jian)(jian)測(ce)(ce)電(dian)(dian)力系(xi)統的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)狀況,及時(shi)發(fa)現故障并(bing)切(qie)斷(duan)電(dian)(dian)源(yuan)(yuan)(yuan),保障電(dian)(dian)力系(xi)統的(de)安全運行。
絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障測(ce)試儀(yi)是(shi)一(yi)種(zhong)用于檢測(ce)電(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障的儀(yi)器,其工(gong)作原理是(shi)通(tong)過(guo)測(ce)量電(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)的絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻、介質損耗因(yin)數(shu)、耐壓(ya)(ya)(ya)等參(can)數(shu),來(lai)(lai)(lai)判(pan)(pan)斷絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)是(shi)否存(cun)在(zai)故(gu)(gu)(gu)障。具體來(lai)(lai)(lai)說(shuo),絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障測(ce)試儀(yi)首(shou)先會通(tong)過(guo)測(ce)量絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻的方法,來(lai)(lai)(lai)判(pan)(pan)斷電(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)是(shi)否存(cun)在(zai)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障。如果(guo)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻過(guo)低,說(shuo)明(ming)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)存(cun)在(zai)故(gu)(gu)(gu)障。接著,測(ce)試儀(yi)會進一(yi)步測(ce)量電(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)的介質損耗因(yin)數(shu)和(he)(he)(he)耐壓(ya)(ya)(ya),以確(que)定絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障的類(lei)型(xing)和(he)(he)(he)程(cheng)度(du)。例如,如果(guo)介質損耗因(yin)數(shu)過(guo)高,說(shuo)明(ming)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)材(cai)料老化(hua)或(huo)(huo)受(shou)潮(chao);如果(guo)耐壓(ya)(ya)(ya)不足,說(shuo)明(ming)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)材(cai)料存(cun)在(zai)缺陷或(huo)(huo)被擊穿。絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障測(ce)試儀(yi)的工(gong)作原理基于電(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)的絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)性能(neng)和(he)(he)(he)故(gu)(gu)(gu)障特點,通(tong)過(guo)對絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻、介質損耗因(yin)數(shu)和(he)(he)(he)耐壓(ya)(ya)(ya)等參(can)數(shu)的測(ce)量和(he)(he)(he)分析,幫助診斷和(he)(he)(he)排除(chu)電(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)的絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)故(gu)(gu)(gu)障。
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