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<div id="iy7ludgahikt" class="clear"></div> </div> </div> <div id="iy7ludgahikt" class="nybanner"><img src="/skins/106676/images/nybanner.jpg"></div> <script src="http://www.chem17.com/mystat.aspx?u=mbdzkj"></script>  <div id="iy7ludgahikt" class="ncontent w_1100"> <div id="iy7ludgahikt" 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> > 斷路器絕緣電阻的測試及回路電阻測試</span></div>  <div id="iy7ludgahikt" class="n-3 c-news"> <div id="iy7ludgahikt" class="newsnr"> <h1>斷路器絕緣電阻的測試及回路電阻測試</h1> <p class="source"><span>日期：2024-11-13</span><span>瀏覽：45次</span></p> <div> <p><strong><span style="font-family: 宋體, SimSun; font-size: 16px;">斷路器絕緣電阻的測試及回路電阻測試</span></strong></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">絕緣電阻的測試<br/>測量絕緣電阻是所有型式斷路器的基本試驗項目，對于不同型式的斷路器有不同的要求，同時也應(yīng)使用不同電壓等級的兆歐表都應(yīng)包括絕緣部件及輔助、控制回路的絕緣測試。<br/>絕緣部件絕緣測量</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"> </span></p><p style="text-align: center"><img style="max-width: 800px; max-height: 300%; width: 547px; height: 374px;" src="https://img45.chem17.com/9/20241113/638670814506240881768.jpg" title="10KV絕緣電阻測試儀.jpg" alt="10KV絕緣電阻測試儀.jpg" width="547" height="374"/></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/>斷路器的絕緣部件包括瓷套、絕緣拉桿、滅弧室、絕緣介質(zhì)在斷路器合閘狀態(tài)下測量絕緣電阻，主要檢查絕緣拉桿、套管及絕緣介質(zhì)的絕緣狀況。<br/><br/>在斷路器分閘狀態(tài)下測量絕緣電阻，主要檢查各端口之間的絕緣以及內(nèi)部滅弧室是否受潮或燒傷。<br/>輔助回路和控制回路的絕緣電阻<br/><br/>測量之前，應(yīng)對相關(guān)回路做好隔離措施，使用500V(或1000V)兆歐表進行測試(對于500kV斷路器應(yīng)使用1000V兆歐表)，其值應(yīng)大于2MΩ。<br/></span><img src="https://www.chem17.com/UserManage/ueditor/themes/default/images/spacer.gif" word_img="file:///C:\Users\Administrator\Documents\Tencent Files\3502948309\nt_qq\nt_data\Pic\2024-11\Ori\f4a958091ed8af6d4985d6f67ae3f852.jpeg" style="background:url(https://www.chem17.com/UserManage/ueditor/lang/zh-cn/images/localimage.png) no-repeat center center;border:1px solid #ddd"/><br/><br/><span style="font-family: 宋體, SimSun; font-size: 16px;">導(dǎo)電回路電阻測量<br/><br/>導(dǎo)電回路電阻主要取決于斷路器動靜觸頭的接觸電阻，其大小直接影響通過正常作電流時是否產(chǎn)生不允許的發(fā)熱及通過短路電流時的它是反應(yīng)安裝檢修質(zhì)量的重要數(shù)據(jù)切斷性能；<br/>觸頭接觸電阻上升的原因有：<br/>觸頭表面氧化<br/> </span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img54.chem17.com/9/20241113/638670811868371992569.png" alt="638670811868371992569.png"/></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"> <br/>觸頭間存在有機雜物或多次開斷短路電流后，殘存有碳化物觸頭壓力下降<br/>觸頭有效接觸面積減少<br/><br/>測量時合上斷路器，將回路電阻測試儀與斷路器一次端用試驗導(dǎo)線連接，電流線接在外側(cè)、電壓線接在內(nèi)側(cè)，施加不小于100A的直流電流，測量出每相導(dǎo)電回路的直流電阻值，其值應(yīng)符合廠家技術(shù)規(guī)范要求。<br/>斷路器分、合閘線圈絕緣電阻及直流電阻測量用500V兆歐表測量分、合閘線圈的絕緣電阻，其值不應(yīng)低于10MΩ用萬用表測量分、合閘線圈的直流電阻，其值與產(chǎn)品出廠試驗值比較無明顯差別。</span><br/></p> <div id="iy7ludgahikt" class="clear"></div> </div> <div id="iy7ludgahikt" class="article"> <p>上一篇：沒有了</p> <p>下一篇：<a href="/Article-3862042.html">斷路器導(dǎo)電回路接觸電阻測試方法與試驗注意事項</a></p> </div> <div id="iy7ludgahikt" class="clear"></div> </div> </div> <div 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id="submenu_硅橡膠加熱器電加熱器康登電氣" style="display:none"> <ul> <li><a href="/SonList-1344170.html">> 硅橡膠加熱器</a></li> <li><a href="/SonList-1344169.html">> 鑄鋁加熱器</a></li> <li><a href="/SonList-1344168.html">> 電熱管</a></li> <li><a href="/SonList-1344166.html">> 空氣加熱器</a></li> <li><a href="/SonList-1344165.html">> 全自動溫控加熱器</a></li> </ul> </div> </li> <li><a href="/ParentList-1359477.html" onmouseover="showsubmenu('絕緣梯')" class="yj">絕緣梯</a> <div class="iy7ludgahikt" id="submenu_絕緣梯" style="display:none"> <ul> <li><a href="/SonList-1359484.html">> 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="iy7ludgahikt" 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