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氧化鋅避雷器測試儀檢測注意事項

更新時間:2023-10-26      瀏覽次數:374

氧化鋅避雷器測試儀檢測注意事項

該儀器可(ke)用于氧化(hua)鋅避雷器的(de)(de)現場在線監測(ce)(ce)(帶電(dian)測(ce)(ce)試(shi))和實驗室(停電(dian)檢修)的(de)(de)測(ce)(ce)試(shi)。可(ke)測(ce)(ce)量(liang)氧化(hua)鋅避雷器在工(gong)頻電(dian)壓下的(de)(de)全電(dian)流,阻性電(dian)流,以(yi)判(pan)斷MOA絕緣受潮和閥(fa)片老(lao)化(hua)程(cheng)度,同時還具備(bei)電(dian)參量(liang)測(ce)(ce)試(shi)、矢量(liang)分析(xi)、諧(xie)波測(ce)(ce)試(shi)的(de)(de)功(gong)能。

儀器電流(liu)測量(liang)采取直接接線(xian)(xian)的方式,能保證測試數據(ju)的準確(que)度(du),電壓測量(liang)采用有(you)線(xian)(xian),無線(xian)(xian),無PT三(san)種測量(liang)方式,其中的 無線(xian)(xian)傳輸方式,避免了(le)因避雷器與PT距(ju)(ju)離(li)遠而需要鋪設長距(ju)(ju)離(li)電壓測量(liang)線(xian)(xian)的麻煩。

整套儀(yi)(yi)器(qi)(qi)氧化鋅避(bi)雷器(qi)(qi)帶電(dian)(dian)(dian)特性測(ce)(ce)(ce)試(shi)儀(yi)(yi)主要由主機、電(dian)(dian)(dian)壓(ya)無(wu)(wu)線(xian)(xian)(xian)傳輸(shu)分機、一(yi)條(tiao)四(si)芯電(dian)(dian)(dian)壓(ya)測(ce)(ce)(ce)試(shi)線(xian)(xian)(xian)、一(yi)組電(dian)(dian)(dian)流線(xian)(xian)(xian),測(ce)(ce)(ce)試(shi)夾(jia)等(deng)組成。下(xia)面以(yi)實(shi)驗(yan)室(停電(dian)(dian)(dian)檢(jian)修(xiu))做法來進行實(shi)際操作講解,首先(xian)是(shi)試(shi)驗(yan)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian),一(yi)步(bu),將(jiang)測(ce)(ce)(ce)試(shi)儀(yi)(yi)良好接(jie)(jie)(jie)(jie)(jie)地,第(di)二步(bu),接(jie)(jie)(jie)(jie)(jie)入電(dian)(dian)(dian)壓(ya)信號,此時(shi)需注(zhu)意(yi),電(dian)(dian)(dian)壓(ya)信號測(ce)(ce)(ce)試(shi)線(xian)(xian)(xian)一(yi)定要先(xian)插到(dao)儀(yi)(yi)器(qi)(qi)的(de)電(dian)(dian)(dian)壓(ya)測(ce)(ce)(ce)試(shi)孔上(shang)(shang)(shang),然(ran)后再(zai)去接(jie)(jie)(jie)(jie)(jie)PT二次側端(duan)子。如使用無(wu)(wu)線(xian)(xian)(xian)傳輸(shu)分機,也是(shi)必須(xu)先(xian)接(jie)(jie)(jie)(jie)(jie)至(zhi)無(wu)(wu)線(xian)(xian)(xian)分機端(duan)插孔。黑夾(jia)子接(jie)(jie)(jie)(jie)(jie)中(zhong)性點,黃綠紅夾(jia)子分別(bie)接(jie)(jie)(jie)(jie)(jie)相(xiang)電(dian)(dian)(dian)壓(ya)(a/b/c) ,我們現場采用的(de)單相(xiang)高壓(ya)發生器(qi)(qi), 第(di)三步(bu),接(jie)(jie)(jie)(jie)(jie)入電(dian)(dian)(dian)流信號,同(tong)樣與之前(qian)一(yi)樣,必須(xu)先(xian)將(jiang)電(dian)(dian)(dian)流測(ce)(ce)(ce)試(shi)線(xian)(xian)(xian)接(jie)(jie)(jie)(jie)(jie)至(zhi)儀(yi)(yi)器(qi)(qi)的(de)IA IB IC測(ce)(ce)(ce)試(shi)端(duan)子上(shang)(shang)(shang),然(ran)后再(zai)去接(jie)(jie)(jie)(jie)(jie)放電(dian)(dian)(dian)計數器(qi)(qi)的(de)兩端(duan),更需要注(zhu)意(yi),要先(xian)接(jie)(jie)(jie)(jie)(jie)放電(dian)(dian)(dian)計數器(qi)(qi)的(de)下(xia)端(duan),再(zai)接(jie)(jie)(jie)(jie)(jie)放電(dian)(dian)(dian)計數器(qi)(qi)的(de)上(shang)(shang)(shang)端(duan)。 至(zhi)此,完成了試(shi)驗(yan)的(de)全部接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)。

接下來(lai)進(jin)入參數(shu)(shu)設置(zhi)模(mo)塊, 電(dian)(dian)(dian)壓(ya)等(deng)(deng)級,輸(shu)入被(bei)試品的(de)電(dian)(dian)(dian)壓(ya)等(deng)(deng)級數(shu)(shu)值(zhi),電(dian)(dian)(dian)流輸(shu)入,選(xuan)擇我們(men)對應的(de)電(dian)(dian)(dian)流測(ce)量方式即(ji)可,補償角度是在采(cai)用無(wu)PT的(de)測(ce)量方式下輸(shu)入。 設置(zhi)完成以后,我們(men)直接進(jin)入到無(wu)線(xian)測(ce)試 模(mo)塊,此屏顯示出當(dang)前實際測(ce)量的(de)三(san)(san)相(xiang)(xiang)二次(ci)電(dian)(dian)(dian)壓(ya)幅值(zhi),換算出來(lai)的(de)三(san)(san)相(xiang)(xiang)一次(ci)電(dian)(dian)(dian)壓(ya)幅值(zhi),三(san)(san)相(xiang)(xiang)全電(dian)(dian)(dian)流幅值(zhi),三(san)(san)相(xiang)(xiang)阻性電(dian)(dian)(dian)流峰值(zhi)、容性電(dian)(dian)(dian)流峰值(zhi),以及三(san)(san)相(xiang)(xiang)基波,3、5、7、次(ci)諧波阻性電(dian)(dian)(dian)流峰值(zhi)等(deng)(deng)各項(xiang)的(de)數(shu)(shu)據(ju),從(cong)而即(ji)可判定(ding)被(bei)試品是否合格, 在而此界(jie)面,按F1能鎖(suo)屏,F2繼續刷新數(shu)(shu)據(ju),F4可打印數(shu)(shu)據(ju),也可通過按存(cun)儲鍵(jian),將測(ce)試結(jie)果保存(cun)起來(lai)。

關于氧化鋅避(bi)雷器測(ce)(ce)試(shi)儀在使(shi)用(yong)無線測(ce)(ce)試(shi)功(gong)能的(de)操作過(guo)程(cheng)我們就講完(wan)了(le),還有(you)有(you)PT測(ce)(ce)試(shi),無PT測(ce)(ce)試(shi)與之(zhi)一樣(yang),我們就不一一仔細介(jie)紹了(le)。 下(xia)面我們再看(kan)看(kan)儀器的(de)電(dian)(dian)氣(qi)測(ce)(ce)試(shi)以及矢量分析模塊,電(dian)(dian)氣(qi)測(ce)(ce)試(shi)模塊可實(shi)時顯(xian)示電(dian)(dian)壓電(dian)(dian)流幅(fu)值和相(xiang)角(jiao),功(gong)率值以及總功(gong)率因素,矢量分析模塊則(ze)可實(shi)時顯(xian)示三(san)相(xiang)電(dian)(dian)壓電(dian)(dian)流六角(jiao)向量圖,非常(chang)便于我們現場分析接線。

使用該儀器(qi)(qi)進行(xing)測試(shi)時,嚴(yan)禁在電壓電流超過(guo)量程(cheng)的情況下(xia)工(gong)作(zuo),嚴(yan)禁在測量過(guo)程(cheng)中接(jie)觸測試(shi)線(xian)的金(jin)屬部分。測試(shi)完(wan)畢后的拆線(xian)工(gong)作(zuo),請按(an)照先拆被試(shi)品側(ce),再(zai)拆儀器(qi)(qi)側(ce)的原則進行(xing),最后再(zai)拆除安全地線(xian)。


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