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直流電阻測(cè)試儀主要是用來(lái)做什么試驗(yàn)的？

返回打印來(lái)源：儀天成電力時(shí)間：2019/06/21 閱讀：次

電力工作者在工作中，經(jīng)常會(huì)聽(tīng)說(shuō)有一款常用的設(shè)備，那就是直流電阻測(cè)試儀，該設(shè)備具有較大的適用范圍，同時(shí)精度比萬(wàn)用表要高出不少，好用還便宜，很受廣大電力工作者的歡迎，那么具體來(lái)說(shuō)，直流電阻測(cè)試儀都有哪些功能，可以來(lái)做哪些試驗(yàn)?zāi)?？本文為您?jiǎn)單介紹。

直流電阻測(cè)試儀的主要功能，就是測(cè)量電力變壓器和大功率電感設(shè)備直流電阻的，是一款比較常規(guī)但是實(shí)用的設(shè)備。變壓器繞組的直流電阻測(cè)試是變壓器在交接、大修和改變分接開(kāi)關(guān)后，必不可少的試驗(yàn)項(xiàng)目。《規(guī)程》規(guī)定在變壓器交接、大修、小修、變更分接頭位置、故障檢查及預(yù)試等，須要測(cè)量變壓器繞組的直流電阻。

測(cè)量電力變壓器直流電阻的目的是：檢查繞組內(nèi)部導(dǎo)線和引線的焊接質(zhì)量；檢查分接開(kāi)關(guān)各個(gè)位置接觸是否良好；檢查繞組或引出線有無(wú)折斷處；檢查并聯(lián)支路的正確性，是否存在由幾條并聯(lián)導(dǎo)線繞成的繞組發(fā)生一處或幾處斷線的情況；檢查層、匝間有無(wú)短路的現(xiàn)象。

整體來(lái)說(shuō)，通過(guò)直流電阻測(cè)試儀來(lái)測(cè)試電力變壓器的直流電阻，相當(dāng)于給電力變壓器做了一個(gè)全身體檢，及時(shí)查找出變壓器內(nèi)部的小的故障點(diǎn)，是保值電力變壓器安全運(yùn)行的一個(gè)好幫手。

湖北儀天成電力設(shè)備有限公司

2019年6月21日

上一篇：互感器綜合測(cè)試儀PT和CT試驗(yàn)有什么不同下一篇：選擇一款好的繼電保護(hù)測(cè)試儀要從哪些方面去選擇？

更多技術(shù)問(wèn)題請(qǐng)致電儀天成電力客戶服務(wù)：027-87876585，技術(shù)部專線：027-87876585，在線客服：

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