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onblur="if(this.value=='')this.value='請(qǐng)輸入您要查詢的產(chǎn)品'" onfocus="this.value=''" value="請(qǐng)輸入您要查詢的產(chǎn)品" type="text" class="search-txt"> <input name="" type="submit" class="search-btn" value=""> </form> </div> <div id="f55nvtnxj1n" class="clear"></div> </div> </div> <div id="f55nvtnxj1n" class="nybanner"><img src="/skins/106676/images/nybanner.jpg"></div> <script src="http://www.chem17.com/mystat.aspx?u=mbdzkj"></script>  <div id="f55nvtnxj1n" class="ncontent w_1100"> <div id="f55nvtnxj1n" class="h-6">技術(shù)文章<span>您當(dāng)前的位置：<a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 10kv絕緣電阻測(cè)試儀對(duì)絕緣質(zhì)量的評(píng)價(jià)</span></div>  <div id="f55nvtnxj1n" class="n-3 c-news"> <div id="f55nvtnxj1n" class="newsnr"> <h1>10kv絕緣電阻測(cè)試儀對(duì)絕緣質(zhì)量的評(píng)價(jià)</h1> <p class="source"><span>日期：2022-09-27</span><span>瀏覽：640次</span></p> <div> <p><span style="font-size: 16px;"><strong>10kv絕緣電阻測(cè)試儀對(duì)絕緣質(zhì)量的評(píng)價(jià)</strong><br/></span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">所有電氣裝置和設(shè)備的絕緣電阻，特別是大容量絕緣電阻測(cè)試，必須符合相關(guān)規(guī)范和標(biāo)準(zhǔn)的要求，以確?，F(xiàn)場(chǎng)操作的安全。無論是電纜、分段保護(hù)設(shè)備，還是電動(dòng)機(jī)、發(fā)電機(jī)等，電導(dǎo)體部分都必須采用高絕緣電阻材料進(jìn)行絕緣，以盡量減少電流流出。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">由于環(huán)境、工作條件或其他作用于設(shè)備的外力，這些絕緣材料的質(zhì)量會(huì)隨著時(shí)間的推移而惡化。它降低了絕緣材料的電阻率，從而增加了泄漏電流，最終可能導(dǎo)致嚴(yán)重的事故，危及人身或財(cái)產(chǎn)安全，并可能導(dǎo)致工廠停工，造成經(jīng)濟(jì)損失。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">對(duì)于新安裝或整改后的設(shè)備，除了運(yùn)行前試驗(yàn)、常規(guī)預(yù)防性試驗(yàn)（包括絕緣試驗(yàn)）外，還可以避免此類事故的發(fā)生，在事故發(fā)生前，這些試驗(yàn)可以有效地對(duì)絕緣老化情況進(jìn)行檢測(cè)，早期缺陷檢測(cè)，在故障發(fā)展的早期階段，可以發(fā)現(xiàn)和處理。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">在這里，我們首先需要區(qū)分兩種常被混淆的測(cè)試方法：耐壓測(cè)試（介電強(qiáng)度測(cè)試）和絕緣測(cè)試。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">耐壓試驗(yàn)：稱為“破壞性試驗(yàn)"，就是在絕緣子上加載高壓浪涌，檢測(cè)絕緣子是否有擊穿現(xiàn)象。在實(shí)踐中，這種浪涌現(xiàn)象可能發(fā)生在雷擊，或者輸電線路發(fā)生故障時(shí)感應(yīng)電壓。本實(shí)驗(yàn)的主要目的是測(cè)試被測(cè)產(chǎn)品的絕緣性及其承受各種過電壓的能力。耐壓試驗(yàn)通常使用交流電壓進(jìn)行，但也可以使用直流電壓進(jìn)行試驗(yàn)。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">絕緣電阻測(cè)試：是在常規(guī)測(cè)試條件下的無損測(cè)試。通過被測(cè)設(shè)備的潮流電壓（小于“壓力測(cè)試"的電壓值），然后計(jì)算出測(cè)試結(jié)果的電阻，單位以KΩ、MΩ、GΩ或TΩ表示被測(cè)電阻值，它代表了兩個(gè)導(dǎo)體之間的絕緣質(zhì)量。由于絕緣電阻測(cè)試是一種“非破壞性測(cè)試"，它對(duì)檢測(cè)運(yùn)行中的電氣設(shè)備和裝置的絕緣老化特別有效。進(jìn)行此項(xiàng)試驗(yàn)應(yīng)使用絕緣電阻測(cè)試儀或高壓可調(diào)數(shù)字兆歐表。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">絕緣測(cè)試原理及影響測(cè)試的因素：</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">絕緣電阻測(cè)試儀基于歐姆定律。絕緣電阻值可以通過加載一個(gè)已知的直流電壓（低于耐壓試驗(yàn)的試驗(yàn)電壓），然后測(cè)量流過絕緣材料的電流來計(jì)算。理論上絕緣電阻的值很大，但不是無窮大，所以通過小電流的絕緣材料進(jìn)行測(cè)量，絕緣電阻測(cè)試儀可以計(jì)算并顯示出絕緣電阻的值，電阻值代表了絕緣材料的好壞。兩個(gè)導(dǎo)體之間的電氣絕緣，并指示絕緣材料中存在泄漏電流的風(fēng)險(xiǎn)。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">當(dāng)對(duì)被測(cè)物體施加恒定電壓時(shí)，很多因素都會(huì)影響被測(cè)物體的絕緣電阻值，即流經(jīng)的絕緣材料的電流值。例如，溫度或濕度可能會(huì)極大地影響測(cè)量結(jié)果。首先，我們首先分析在絕緣測(cè)試中流過被測(cè)物體（絕緣材料）的電流的自然特性，并假設(shè)這些因素不影響測(cè)量結(jié)果。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">這些方法用于在規(guī)定時(shí)間內(nèi)連續(xù)測(cè)量絕緣電阻值。這種測(cè)試方法的優(yōu)點(diǎn)是環(huán)境溫度對(duì)實(shí)驗(yàn)結(jié)果影響不大。因此，只要被測(cè)設(shè)備的環(huán)境溫度在測(cè)試過程中沒有發(fā)生劇烈變化，就不需要修改測(cè)量結(jié)果。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">這種方法非常適合旋轉(zhuǎn)電機(jī)的預(yù)防性測(cè)試和絕緣監(jiān)測(cè)。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">如果絕緣良好，漏電流會(huì)很小，所以測(cè)試初期的總電流主要是電容充電電流和介質(zhì)吸收電流。隨著測(cè)試電壓繼續(xù)加載，測(cè)量的絕緣電阻隨著這些干擾電流逐漸減小而繼續(xù)上升。在主體絕緣條件良好的情況下，測(cè)量絕緣電阻所需的穩(wěn)定時(shí)間取決于絕緣材料的種類。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">如果絕緣已經(jīng)惡化，泄漏電流非常大且恒定，通常超過電容器充電電流和電介質(zhì)吸收電流。在這種情況下，當(dāng)施加高電壓時(shí)，測(cè)得的絕緣電阻值很快就會(huì)穩(wěn)定下來。</span></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24);"><br/></p><p style="margin-top: 2px; margin-bottom: 2px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: inherit; font-family: 微軟雅黑, Arial, 宋體; color: rgb(24, 24, 24); text-indent: 2em;"><span style="font-size: 16px;">根據(jù)試驗(yàn)電壓的加載時(shí)間，分析絕緣材料絕緣電阻的變化情況，可用于評(píng)價(jià)被測(cè)產(chǎn)品的絕緣質(zhì)量。</span></p> <div id="f55nvtnxj1n" class="clear"></div> </div> <div id="f55nvtnxj1n" class="article"> <p>上一篇：<a href="/Article-3146528.html">干式試驗(yàn)變壓器如何保養(yǎng)</a></p> <p>下一篇：<a href="/Article-3146524.html">伏安特性測(cè)試及誤差曲線計(jì)算</a></p> </div> <div id="f55nvtnxj1n" class="clear"></div> </div> </div> <div id="f55nvtnxj1n" class="n-9"> <div id="f55nvtnxj1n" class="c-right"> <div id="f55nvtnxj1n" class="c-1 r-pro"> <div id="f55nvtnxj1n" class="c-left"> <div id="f55nvtnxj1n" class="h-2"><a href="/products.html">產(chǎn)品分類</a></div> <ul> <li><a href="/ParentList-1388067.html" onmouseover="showsubmenu('大電流發(fā)生器')" class="yj">大電流發(fā)生器</a> <div class="f55nvtnxj1n" id="submenu_大電流發(fā)生器" style="display:none"> <ul> </ul> </div> </li> <li><a 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半絕緣二節(jié)拉伸梯</a></li> <li><a href="/SonList-1359483.html">> 絕緣凳</a></li> <li><a href="/SonList-1359482.html">> 絕緣A型梯</a></li> <li><a href="/SonList-1359481.html">> 絕緣二節(jié)拉伸梯</a></li> <li><a href="/SonList-1359480.html">> 絕緣單梯</a></li> <li><a href="/SonList-1359478.html">> 多功能絕緣關(guān)節(jié)梯</a></li> </ul> </div> </li> <li><a href="/ParentList-1326774.html" onmouseover="showsubmenu('防爆電加熱器')" class="yj">防爆電加熱器</a> <div class="f55nvtnxj1n" id="submenu_防爆電加熱器" style="display:none"> <ul> <li><a href="/SonList-1326775.html">> 防爆管狀加熱器</a></li> </ul> </div> </li> <li><a href="/ParentList-1326772.html" onmouseover="showsubmenu('電加熱器')" class="yj">電加熱器</a> <div class="f55nvtnxj1n" id="submenu_電加熱器" style="display:none"> <ul> <li><a href="/SonList-1326773.html">> 管狀加熱器</a></li> </ul> </div> </li> <li><a href="/ParentList-1324449.html" onmouseover="showsubmenu('液壓鉗、繞纜剪總匯')" class="yj">液壓鉗、繞纜剪總匯</a> <div class="f55nvtnxj1n" id="submenu_液壓鉗、繞纜剪總匯" style="display:none"> <ul> <li><a 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