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href="/ParentList-1935169.html" class="yja" onmouseover="showsubmenu('高壓核相儀')">高壓核相儀</a> <div class="quimsyk" id="submenu_高壓核相儀" style="display:none"> <ul> </ul> </div> </li> </ul> </div> </div></div> <div id="quimsyk" class="inpage_right"> <div id="quimsyk" class="mbx2"><a href="/">首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > FCZ-IV 避雷器放電計(jì)數(shù)器校驗(yàn)儀工作原理</div> <div id="quimsyk" class="inpage_content"> <div id="quimsyk" class="nr_main_box"> <h1 class="inside_rnewtil">FCZ-IV 避雷器放電計(jì)數(shù)器校驗(yàn)儀工作原理</h1> <div id="quimsyk" class="inside_rnewtime">點(diǎn)擊次數(shù)：2254 更新時(shí)間：2017-10-25</div> <div id="quimsyk" class="inside_rnewcon"><p><strong><span style="font-size:18px">FCZ-IV 避雷器放電計(jì)數(shù)器校驗(yàn)儀工作原理</span></strong></p><p><span style="font-size:15pt"><span style="font-family:宋體">本儀器用于校驗(yàn)各種避雷器計(jì)數(shù)器動(dòng)作的可靠性。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">計(jì)數(shù)器動(dòng)作的可靠性對(duì)于電力系統(tǒng)非常重要，它是記錄避雷器在正常運(yùn)行中受到雷擊次數(shù)統(tǒng)計(jì)的一個(gè)重要參數(shù)。它能為電力系統(tǒng)的工作人員提供有針對(duì)性對(duì)避雷器進(jìn)行檢驗(yàn)的重要依據(jù)。本儀器主要用于</span></span><span style="font-size:15pt"><span style="font-family:宋體">35kV</span></span><span style="font-size:15pt"><span style="font-family:宋體">以上的高壓避雷器。<br /><img alt="" src="http://img55.chem17.com/9/20171025/636445189258480505604.jpg" style="height:314px; width:450px" /></span></span></p><h2><strong><span style="font-size:15pt"><span style="font-family:宋體">二、儀器特點(diǎn)</span></span></strong></h2><p><strong><span style="font-size:15pt"><span style="font-family:宋體">本儀器具有體積小、重量輕、攜帶方便、可靠性強(qiáng)、操作簡(jiǎn)單等特點(diǎn)。</span></span></strong></p><h2><strong><span style="font-size:15pt"><span style="font-family:宋體">三、工作原理</span></span></strong></h2><p><span style="font-size:15pt"><span style="font-family:宋體">儀器原理圖見(jiàn)下：</span></span></p><p> <img alt="" src="http://img63.chem17.com/9/20171025/636445181472038829211.png" style="height:542px; width:627px" /> </p><p><img src="file:///C:\Users\lenovo\AppData\Local\Temp\ksohtml\wps7890.tmp.png" style="height:1px; width:111px" /><img src="file:///C:\Users\lenovo\AppData\Local\Temp\ksohtml\wps7891.tmp.png" style="height:1px; width:19px" /><img src="file:///C:\Users\lenovo\AppData\Local\Temp\ksohtml\wps7892.tmp.png" style="height:34px; width:1px" /><img src="file:///C:\Users\lenovo\AppData\Local\Temp\ksohtml\wps78A3.tmp.png" style="height:1px; width:160px" /> </p><p> <span style="font-size:15pt"><span style="font-family:宋體">圖</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:宋體">（</span></span><span style="font-size:15pt"><span style="font-family:arial">b</span></span><span style="font-size:15pt"><span style="font-family:宋體">）計(jì)數(shù)器的原理接線圖</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">圖</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:arial">(a)</span></span><span style="font-size:15pt"><span style="font-family:宋體">所示為</span></span><span style="font-size:15pt"><span style="font-family:宋體">FCZ-</span></span><span style="font-size:15pt"><span style="font-family:宋體">Ⅳ避雷器記數(shù)儀的原理圖。圖</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:arial">(a)</span></span><span style="font-size:15pt"><span style="font-family:宋體">中</span></span><span style="font-size:15pt"><span style="font-family:宋體">JD</span></span><span style="font-size:15pt"><span style="font-family:宋體">為交流接觸器，</span></span><span style="font-size:15pt"><span style="font-family:宋體">JD1</span></span><span style="font-size:15pt"><span style="font-family:宋體">、</span></span><span style="font-size:15pt"><span style="font-family:宋體">JD2</span></span><span style="font-size:15pt"><span style="font-family:宋體">為</span></span><span style="font-size:15pt"><span style="font-family:宋體">JD</span></span><span style="font-size:15pt"><span style="font-family:宋體">的兩對(duì)常開(kāi)觸點(diǎn)。圖</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:宋體">（</span></span><span style="font-size:15pt"><span style="font-family:arial">b</span></span><span style="font-size:15pt"><span style="font-family:宋體">）中</span></span><span style="font-size:15pt"><span style="font-family:宋體">R1</span></span><span style="font-size:15pt"><span style="font-family:宋體">、</span></span><span style="font-size:15pt"><span style="font-family:宋體">R2</span></span><span style="font-size:15pt"><span style="font-family:宋體">為非線性電阻，</span></span><span style="font-size:15pt"><span style="font-family:宋體">C</span></span><span style="font-size:15pt"><span style="font-family:宋體">為電容，</span></span><span style="font-size:15pt"><span style="font-family:宋體">L</span></span><span style="font-size:15pt"><span style="font-family:宋體">為計(jì)數(shù)器的線圈。當(dāng)避雷器動(dòng)作時(shí)，放電電流流過(guò)閥片</span></span><span style="font-size:15pt"><span style="font-family:arial">R</span></span><sub><span style="font-size:15pt"><span style="font-family:arial">1</span></span></sub><span style="font-size:15pt"><span style="font-family:宋體">，在</span></span><span style="font-size:15pt"><span style="font-family:arial">R</span></span><sub><span style="font-size:15pt"><span style="font-family:arial">1</span></span></sub><span style="font-size:15pt"><span style="font-family:宋體">上的壓降經(jīng)閥片</span></span><span style="font-size:15pt"><span style="font-family:宋體">R</span></span><sub><span style="font-size:15pt"><span style="font-family:arial">2</span></span></sub><span style="font-size:15pt"><span style="font-family:宋體">給電容器</span></span><span style="font-size:15pt"><span style="font-family:宋體">C</span></span><span style="font-size:15pt"><span style="font-family:宋體">充電，然后</span></span><span style="font-size:15pt"><span style="font-family:宋體">C</span></span><span style="font-size:15pt"><span style="font-family:宋體">再對(duì)電磁式計(jì)數(shù)器的電感線圈</span></span><span style="font-size:15pt"><span style="font-family:宋體">L</span></span><span style="font-size:15pt"><span style="font-family:宋體">放電，使其轉(zhuǎn)動(dòng)</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:宋體">格，記</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:宋體">次數(shù)。改變</span></span><span style="font-size:15pt"><span style="font-family:arial">R</span></span><sub><span style="font-size:15pt"><span style="font-family:arial">1</span></span></sub><span style="font-size:15pt"><span style="font-family:宋體">及</span></span><span style="font-size:15pt"><span style="font-family:arial">R</span></span><sub><span style="font-size:15pt"><span style="font-family:arial">2</span></span></sub><span style="font-size:15pt"><span style="font-family:宋體">的阻值，可使計(jì)數(shù)器具有不同的靈敏度。一般zui小動(dòng)作電流為</span></span><span style="font-size:15pt"><span style="font-family:宋體">10</span></span><span style="font-size:15pt"><span style="font-family:arial">0</span></span><span style="font-size:15pt"><span style="font-family:宋體">A</span></span><span style="font-size:15pt"><span style="font-family:宋體">（</span></span><span style="font-size:15pt"><span style="font-family:宋體">8</span></span><span style="font-size:15pt"><span style="font-family:宋體">／</span></span><span style="font-size:15pt"><span style="font-family:宋體">20μs</span></span><span style="font-size:15pt"><span style="font-family:宋體">）的沖擊電流。因</span></span><span style="font-size:15pt"><span style="font-family:宋體">R</span></span><sub><span style="font-size:15pt"><span style="font-family:宋體">1</span></span></sub><span style="font-size:15pt"><span style="font-family:宋體">上有一定的壓降，將使避雷器的殘壓有所增加，故它主要用于</span></span><span style="font-size:15pt"><span style="font-family:宋體">35kV</span></span><span style="font-size:15pt"><span style="font-family:宋體">以上的高壓避雷器。</span></span></p><h2><strong><span style="font-size:15pt"><span style="font-family:宋體">四、動(dòng)作的檢查方法及計(jì)數(shù)器檢測(cè)儀原理</span></span></strong></h2><p><span style="font-size:15pt"><span style="font-family:宋體">由于密封不良，動(dòng)作記數(shù)器在運(yùn)行中可能進(jìn)入潮氣或水分，使內(nèi)部元件銹蝕，導(dǎo)致記數(shù)器不能正常動(dòng)作，所以《規(guī)程》規(guī)定，每年應(yīng)檢查</span></span><span style="font-size:15pt"><span style="font-family:宋體">1</span></span><span style="font-size:15pt"><span style="font-family:宋體">次。現(xiàn)場(chǎng)檢查記數(shù)器動(dòng)作的方法有直流法、交流法和標(biāo)準(zhǔn)沖擊電流法。研究表明，以標(biāo)準(zhǔn)沖擊電流法zui為可靠，其原理接線如圖</span></span><span style="font-size:15pt"><span style="font-family:宋體">2</span></span><span style="font-size:15pt"><span style="font-family:宋體">所示。</span></span></p><p> </p><table cellpadding="0" cellspacing="0" style="border:1px dotted rgb(211, 211, 211); color:rgb(51, 51, 51); font-family:sans-serif,arial,verdana,trebuchet ms; font-size:13px"><tbody><tr><td> </td></tr><tr><td> </td><td> </td></tr></tbody></table><p><img alt="" src="http://img63.chem17.com/9/20171025/636445181945499660731.png" style="height:253px; width:293px" /></p><p><span style="font-size:15pt"><span style="font-family:宋體">將沖擊電流發(fā)生器發(fā)生的</span></span><span style="font-size:15pt"><span style="font-family:宋體">8</span></span><span style="font-size:15pt"><span style="font-family:宋體">／</span></span><span style="font-size:15pt"><span style="font-family:宋體">20μs</span></span><span style="font-size:15pt"><span style="font-family:宋體">、</span></span><span style="font-size:15pt"><span style="font-family:宋體">100A</span></span><span style="font-size:15pt"><span style="font-family:宋體">的沖擊電流波作用于動(dòng)作記數(shù)器，若記數(shù)器動(dòng)作正常，則說(shuō)明儀器良好，否則應(yīng)解體檢修。例如某電業(yè)局曾用此法對(duì)</span></span><span style="font-size:15pt"><span style="font-family:宋體">27</span></span><span style="font-size:15pt"><span style="font-family:宋體">只記數(shù)器進(jìn)行檢測(cè)，其中有</span></span><span style="font-size:15pt"><span style="font-family:宋體">3</span></span><span style="font-size:15pt"><span style="font-family:宋體">只不動(dòng)作，解體發(fā)現(xiàn)內(nèi)部元件受潮、損壞。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">《規(guī)程》規(guī)定，連續(xù)測(cè)試</span></span><span style="font-size:15pt"><span style="font-family:宋體">3</span></span><span style="font-size:15pt"><span style="font-family:宋體">～</span></span><span style="font-size:15pt"><span style="font-family:宋體">5</span></span><span style="font-size:15pt"><span style="font-family:宋體">次，每次應(yīng)正常動(dòng)作，每次時(shí)間間隔不少于</span></span><span style="font-size:15pt"><span style="font-family:宋體">30s</span></span><span style="font-size:15pt"><span style="font-family:宋體">。測(cè)試后記錄器應(yīng)調(diào)到</span></span><span style="font-size:15pt"><span style="font-family:宋體">0</span></span><span style="font-size:15pt"><span style="font-family:宋體">。</span></span></p><h2><strong><span style="font-size:15pt"><span style="font-family:宋體">五、儀器面板布置</span></span></strong></h2><p> <img alt="" src="http://img63.chem17.com/9/20171025/636445183128917739672.png" style="height:275px; width:655px" /></p><p><img src="file:///C:\Users\lenovo\AppData\Local\Temp\ksohtml\wps7940.tmp.png" style="height:49px; width:1px" /><span style="font-size:15pt"><span style="font-family:宋體">圖</span></span><span style="font-size:15pt"><span style="font-family:宋體">3 </span></span><span style="font-size:15pt"><span style="font-family:宋體">檢測(cè)儀面板示意圖</span></span></p><p><span style="font-size:14pt"><span style="font-family:宋體">1----</span></span><span style="font-size:14pt"><span style="font-family:宋體">電源插座</span></span><span style="font-size:14pt"><span style="font-family:宋體"> 2----</span></span><span style="font-size:14pt"><span style="font-family:宋體">電壓顯示表</span></span></p><p><span style="font-size:14pt"><span style="font-family:宋體">3----</span></span><span style="font-size:14pt"><span style="font-family:宋體">電源開(kāi)關(guān)</span></span><span style="font-size:14pt"><span style="font-family:宋體"> 4----</span></span><span style="font-size:14pt"><span style="font-family:宋體">輸出電壓</span></span><span style="font-size:14pt"><span style="font-family:宋體">+</span></span></p><p><span style="font-size:14pt"><span style="font-family:宋體">5----</span></span><span style="font-size:14pt"><span style="font-family:宋體">測(cè)量按鍵</span></span><span style="font-size:14pt"><span style="font-family:宋體"> 6----</span></span><span style="font-size:14pt"><span style="font-family:宋體">輸出電壓</span></span><span style="font-size:14pt"><span style="font-family:宋體">-</span></span></p><p><span style="font-size:14pt"><span style="font-family:宋體">7----</span></span><span style="font-size:14pt"><span style="font-family:宋體">接地柱</span></span></p><p> </p><h2><strong><span style="font-size:15pt"><span style="font-family:宋體">六、操作方法</span></span></strong></h2><p><span style="font-size:15pt"><span style="font-family:宋體">1. </span></span><span style="font-size:15pt"><span style="font-family:宋體">將儀器輸出端與避雷器計(jì)數(shù)器兩端相連，紅色端接上端，黑色端接地端。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">2. </span></span><span style="font-size:15pt"><span style="font-family:宋體">將電源線接好后，檢查儀器及接線是否正確，確認(rèn)無(wú)誤后即可開(kāi)始試驗(yàn)。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">3. </span></span><span style="font-size:15pt"><span style="font-family:宋體">合上電源開(kāi)關(guān)（電源燈亮），待電壓穩(wěn)定（</span></span><span style="font-size:15pt"><span style="font-family:宋體">1000V</span></span><span style="font-size:15pt"><span style="font-family:宋體">左右）后，即可開(kāi)始校驗(yàn)。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">4. </span></span><span style="font-size:15pt"><span style="font-family:宋體">按下測(cè)量鍵，輸出電壓立即下降，此時(shí)可觀察計(jì)數(shù)器的動(dòng)作情況。</span></span> </p><p><span style="font-size:15pt"><span style="font-family:宋體">5. </span></span><span style="font-size:15pt"><span style="font-family:宋體">如需多次試驗(yàn)，可待輸出電壓達(dá)到穩(wěn)定值時(shí)，再按校驗(yàn)鍵，并觀察計(jì)數(shù)器的動(dòng)作情況。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">6. </span></span><span style="font-size:15pt"><span style="font-family:宋體">檢驗(yàn)完畢后，立即關(guān)掉電源，待輸出電壓*回零時(shí)，才能拆除接線。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">7. </span></span><span style="font-size:15pt"><span style="font-family:宋體">如按測(cè)量鍵，輸出電壓沒(méi)有下降，應(yīng)關(guān)掉電源，待電壓指示回零后，檢查是否回路有斷點(diǎn)，或者是放電計(jì)數(shù)器不適合技術(shù)指標(biāo)中規(guī)定的型號(hào)。</span></span></p><h2><strong><span style="font-size:15pt"><span style="font-family:宋體">七、注意事項(xiàng)</span></span></strong></h2><ul style="list-style-type:square"><li><span style="font-size:15pt"><span style="font-family:宋體">打開(kāi)電源開(kāi)關(guān)之前，應(yīng)先將電流調(diào)節(jié)鈕按逆時(shí)針調(diào)至</span></span><span style="font-size:15pt"><span style="font-family:宋體">“</span></span><span style="font-size:15pt"><span style="font-family:宋體">零位</span></span><span style="font-size:15pt"><span style="font-family:arial">”</span></span><span style="font-size:15pt"><span style="font-family:宋體">。</span></span></li><li><span style="font-size:15pt"><span style="font-family:宋體">儀器應(yīng)放置于干燥、通風(fēng)，無(wú)腐蝕性氣體的室內(nèi)。</span></span></li><li><span style="font-size:15pt"><span style="font-family:arial">請(qǐng)不要私自拆卸、分解或改造</span></span><span style="font-size:15pt"><span style="font-family:宋體">儀器</span></span><span style="font-size:15pt"><span style="font-family:arial">，否則有觸電的危險(xiǎn)。</span></span></li><li><span style="font-size:15pt"><span style="font-family:arial">請(qǐng)不要私自維修</span></span><span style="font-size:15pt"><span style="font-family:宋體">儀器</span></span><span style="font-size:15pt"><span style="font-family:arial">或自主改造、加工</span></span><span style="font-size:15pt"><span style="font-family:宋體">儀器，</span></span><span style="font-size:15pt"><span style="font-family:arial">否則</span></span><span style="font-size:15pt"><span style="font-family:宋體">儀器不在質(zhì)保之</span></span> <span style="font-size:15pt"><span style="font-family:宋體">列。</span></span></li><li><span style="font-size:15pt"><span style="font-family:宋體">為發(fā)揮本產(chǎn)品的性能</span></span><span style="font-size:15pt"><span style="font-family:宋體">,</span></span><span style="font-size:15pt"><span style="font-family:arial">在使用本公司產(chǎn)品前請(qǐng)仔細(xì)閱讀使用說(shuō)明</span></span><span style="font-size:15pt"><span style="font-family:宋體">書(shū)</span></span><span style="font-size:15pt"><span style="font-family:arial">。</span></span></li></ul><h1><strong><span style="font-size:15pt"><span style="font-family:宋體">八、運(yùn)輸、貯存</span></span></strong></h1><p><strong><span style="font-size:15pt"><span style="font-family:宋體"> ■</span></span></strong><strong><span style="font-size:15pt"><span style="font-family:宋體">運(yùn)輸</span></span></strong></p><p> <span style="font-size:15pt"><span style="font-family:宋體">設(shè)備需要運(yùn)輸時(shí)，建議使用本公司儀器包裝木箱和減震物品，以免在運(yùn)輸途中造成不必要的損壞，給您造成不必要的損失。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">設(shè)備在運(yùn)輸途中不使用木箱時(shí)，不允許堆碼排放。使用本公司儀器包裝箱時(shí)允許zui高堆碼層數(shù)為二層。</span></span></p><p><span style="font-size:15pt"><span style="font-family:宋體">運(yùn)輸設(shè)備途中，儀器面板應(yīng)朝上。</span></span></p><p><strong><span style="font-size:15pt"><span style="font-family:宋體"> ■貯存</span></span></strong></p><p> <span style="font-size:15pt"><span 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