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style="display:none"> <ul> <li id="1571n5fppxr7" class="ej"><a href="/SonList-1800102.html" class="eja">繼電保護測試儀</a></li> </ul> </div> </li> </ul> </div> </div></div> <div id="1571n5fppxr7" class="inpage_right"> <div id="1571n5fppxr7" class="mbx2"><a href="/">首頁</a> > <a href="/article.html">技術文章</a> > 高壓斷路器預防性試驗內容及方法說明</div> <div id="1571n5fppxr7" class="inpage_content"> <div id="1571n5fppxr7" class="nr_main_box"> <h1 class="inside_rnewtil">高壓斷路器預防性試驗內容及方法說明</h1> <div id="1571n5fppxr7" class="inside_rnewtime">點擊次數(shù)：837 更新時間：2023-06-01</div> <div id="1571n5fppxr7" class="inside_rnewcon"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><strong><span style="font-size: 16px; color: rgb(0, 0, 0);">高壓斷路器預防性試驗內容及方法說明</span></strong></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">斷路器：電氣工程中不可少的電氣元件，是重要的一次設備，在正常的情況下切、合高壓電路，在故障的情況下開斷巨大的故障電流，斷路器又是關鍵的操作設備。</span></p><p><span style="font-size: 16px; font-family: 宋體; background-color: rgb(255, 255, 255); color: rgb(0, 0, 0);">在高壓配電系統(tǒng)的斷路器擔負著大面積的供電，它關系到電力供應是否正常的關鍵，也是經常出現(xiàn)問題和發(fā)生故障的器件之一。<br style="margin: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">主要有：油斷路器、真空斷路器和SF6氣體斷路器。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">高壓斷路器的試驗內容</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(1)絕緣電阻測試</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(2)導電回路電阻測量</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(3)線圈直流電阻測量</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(4)跳、合閘時間的測量</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(5)絕緣油試驗</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(6)相同期試驗</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(7)操作機構的低動作時間測量</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">(8)交流耐壓試驗</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255); text-align: center;"><span style="font-size: 16px; color: rgb(0, 0, 0);"> </span></p><p style="text-align: center"><img style="max-width: 800px; max-height: 300%; width: 321px; height: 270px;" src="https://img64.chem17.com/9/20230601/638211980761327231296.jpg" title="799BED7C3452E359F95CE0A8B0A871C1.jpg" alt="799BED7C3452E359F95CE0A8B0A871C1.jpg" width="321" height="270"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255); text-align: center;"><span style="color: rgb(0, 0, 0); font-size: 16px;"><br/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">1、絕緣電阻測試</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">測試前應將支持絕緣子擦干凈，使用2500V的兆歐表，1）要測量相與相之間的絕緣電阻，2）相與地之間的絕緣電阻，測試結果不應少1000MΩ。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">2、導電回路電阻測量</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">高壓斷路器的導電回路電阻也叫作接觸電阻，其測量試驗使用雙臂電橋，測試時先將斷路器合、跳幾次后再將斷路器操作保險取下，將斷路器手動操作部分綁死捆住，以防突然跳聞傷人并防止突然斷開時電橋的檢流計打壞。測量時如果懷疑測定數(shù)值可復測幾次，每次都將開關動作幾次。取分散性較小的三次平均值為測試值。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">3、跳閘、合閘線圈直流電阻測量跳閘、合閘線圈直流電阻測量，這是一項常規(guī)的試驗，用電橋進行測試，測試結果與以往測試結果相比不應有較大的變化。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">4、跳閘、合閘時間的測量</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">它屬于斷路器的動作特性試驗，跳閘、合閘時間與跳合閘的速度有關，與機械的結構、機械的摩擦力及機械勢能能量等有關。測量時使用電秒表進行動作時間的測量，測量合閘時間時將三相開關主觸電串聯(lián)連接到電秒表，當只有全部接點閉合時的時間為合閘時間;測量分閘時間時，將三相開關主觸點并聯(lián)連接后，接到電秒表，當只有全部接點斷開時的時間為分閘時間。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">5、絕油試驗</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">僅對油斷路器做此項試驗，實驗方法同油試驗。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">6、三相同期試驗</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">斷路器的三相同期試驗是通過手動壓合開關進行的，在三相動、靜觸頭之間接入三只小電珠，小電珠回路始終是通電的，當壓合開關時，按電珠亮的先后做好記號，壓到底后在三相導電桿上再做出記號，分開閘后測量各導電桿上下兩記號間的距離，調整導電桿的長度使之相同，反復調整到壓合時電珠同時亮，斷開時電珠同時滅為止。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">7、高壓斷路器操作<span style="font-size: 16px; color: rgb(0, 0, 0);">機構的低動作時間測量</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">高壓斷路器操作機構的低動作時間測量，它屬于操作機構的檢驗。為保證斷路器在各種運行狀況下都能可靠地工作，規(guī)程規(guī)定了動作電壓的下限值，如果動作電壓過低，會引起斷路器的誤動作。<br style="margin: 0px; padding: 0px;"/>合閘接觸器線圈低動作電壓:不大于額定電壓的80%，不小于額定電壓的30%;分閘電磁鐵線圈低動作電壓: 不大于額定電壓的65%，不小于額定電壓的30%。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">8、交流耐壓試驗</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">交流耐壓試驗是在斷路器特性試驗完成后進行的，油斷路器還要在油試驗合格后進行，氣體斷路器要在充滿合格的SF6氣體后進行斷路器要做兩次試驗，進行斷口間耐壓試驗和對地耐壓試驗。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(59, 59, 59); font-family: 宋體; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; color: rgb(0, 0, 0);">注意：試驗標準中有些斷路器的斷口耐壓值大于對地耐壓值。</span></p><p><br/></p></div> <div id="1571n5fppxr7" class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-3372354.html">絕緣電阻表的正確使用方法及常見故障處</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-3372351.html">40A直流電阻測試儀結構特征與工作原理</a></b></p> <span><a href="/article.html">返回列表>></a></span> </div> </div> </div> </div> </div>    <div class="1571n5fppxr7" id="z_Footer"> <div id="1571n5fppxr7" class="pz_down"> <div id="1571n5fppxr7" class="w_1200"> <div id="1571n5fppxr7" class="footT"> <div id="1571n5fppxr7" class="footAddr"> <div id="1571n5fppxr7" class="footTit">上?？档请姎饪萍加邢薰?/div> <div id="1571n5fppxr7" 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