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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="mm8vt6z" class="twoCol"><div id="xsmf3we" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_lpgypsp/">禮品、工藝品、飾品</a>?<a href="http://www.cdcfah.com/cp/third-lpgypsp_sppj/">飾品配件</a>?江西安全工器具檢測(cè)中心誠(chéng)信經(jīng)營(yíng) 沛能電力供應(yīng)</p><div id="p1oco0p" class="leftbox clearfix"><h1>江西安全工器具檢測(cè)中心誠(chéng)信經(jīng)營(yíng) 沛能電力供應(yīng)</h1><div id="n3p3ef8" class="proBig"><div id="ogksfnk" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/9/15/637062304501422108_hapn_4512105.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qguwzuz" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/9/15/637062304501422108_hapn_4512105.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="apdhrjc" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江西安全工器具檢測(cè)中心</p><p><span>***更新：</span>2020-06-04 08:04:16</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3baimhm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">淮安沛能電力技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>蔡國(guó)義</p><p><span>郵箱: </span>271858583@qq.com</p><p><span>電話: </span>13236268898</p><p><span>傳真: </span>0517_84333338</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0517-84333338</p><p><span>地址: </span>淮安市淮陰區(qū)九江路56號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="wshfkaq" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xcq37oa" class="box"><p><p style="text-indent:25px">攜帶型接地線運(yùn)用注意事項(xiàng)1. 接地線的挑選應(yīng)依據(jù)運(yùn)用地址短路容量的需要來(lái)選定； 2. 所有接地線均應(yīng)一致編號(hào)，建立運(yùn)用記錄準(zhǔn)則，專人保管；接地線一致編號(hào)后，存放在**的接地線架上，按編號(hào)次序擺放；3. 攜帶型接地線的裝拆次序應(yīng)正確；4. 裝設(shè)接地線必須由兩人進(jìn)行；5. 攜帶型接地線在每次裝設(shè)曾經(jīng)應(yīng)具體查看，軟銅線無(wú)損壞，各處連接應(yīng)結(jié)實(shí)，損壞的接地線應(yīng)及時(shí)修補(bǔ)或替換，制止運(yùn)用不符合規(guī)則的導(dǎo)線作接地線或短路線之用；6.攜帶型短路接地線在通過(guò)短路電流后，一般應(yīng)予以報(bào)廢；7. 實(shí)驗(yàn)規(guī)范：成組直流電阻實(shí)驗(yàn)用于考核攜帶型短路接地線線鼻和匯流夾與多股銅質(zhì)軟導(dǎo)線之間的觸摸是否良好，江西安全工器具檢測(cè)中心。一起,也可考核多股銅質(zhì)軟導(dǎo)線的截面積是否符合要求,成組直流電阻實(shí)驗(yàn)采用直流電壓降法丈量,常用的丈量方法為電流-電壓表法,實(shí)驗(yàn)電流宜≥30A，江西安全工器具檢測(cè)中心。進(jìn)行接地線的成組直流電阻實(shí)驗(yàn)時(shí),應(yīng)先丈量各接線鼻間兩兩的長(zhǎng)度,依據(jù)測(cè)得的直流電阻值,算出每米的電阻值，江西安全工器具檢測(cè)中心,其值如符合下表的規(guī)則,則為合格。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西安全工器具檢測(cè)中心" src="http://tyunfile.71360.com/UpLoadFile/2019/10/9/15/637062304501422108_hapn_4512105.jpg"></div><p style="text-indent:25px">部分放電分析所謂的部分放電就是在高壓電力系統(tǒng)的設(shè)備里的絕緣體傍邊，因?yàn)殡妶?chǎng)的部分性的會(huì)集而發(fā)生了一種放電現(xiàn)象，這種放電現(xiàn)象對(duì)錯(cuò)橋接狀態(tài)下發(fā)生的。與此同時(shí)，加上當(dāng)時(shí)不管是國(guó)內(nèi)仍是在國(guó)外在這個(gè)領(lǐng)域研究相當(dāng)多的并且運(yùn)用的相當(dāng)好的為部分放電在線監(jiān)測(cè)方法一個(gè)就是通過(guò)脈沖電流法，另一個(gè)就是超聲波法。關(guān)于這兩種方法我下面做一個(gè)扼要的分析：脈沖電流法在理論上是可以做到測(cè)量規(guī)模相當(dāng)小達(dá)到幾皮庫(kù)的部分放電，這可以說(shuō)是它的一個(gè)長(zhǎng)處，可是這也意味著這種在線監(jiān)測(cè)方法相對(duì)而言交易簡(jiǎn)略受到外界的電磁煩擾。而超聲波法的原理主要是通過(guò)安裝在變壓器的油箱上面的超聲波傳感器來(lái)對(duì)部分放電形成的超聲壓力波進(jìn)行檢測(cè)，其優(yōu)勢(shì)是抗電磁煩擾的性能較強(qiáng)。同時(shí)，如果選用多個(gè)超聲波傳感器之后不只可以愈加精細(xì)的在線檢測(cè)，還可以對(duì)放電進(jìn)行定位?？墒沁@種方法也有其不足之處，因?yàn)槌暡ㄔ谠O(shè)備內(nèi)部絕緣里的吸收以及散射，靈敏度沒(méi)有脈沖電流法高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西安全工器具檢測(cè)中心" src="http://tyunfile.71360.com/UpLoadFile/2019/10/9/15/637062304555378891_hapn_8808204.jpg"></div><p> 新裝變壓器要做的實(shí)驗(yàn)： </p> <p> 1、停止5次沖擊實(shí)驗(yàn) </p> <p> 請(qǐng)求：每次沖擊實(shí)驗(yàn)均要檢查變壓器有無(wú)異音、異狀。 </p> <p> 新裝的變壓器在帶電投入空載運(yùn)轉(zhuǎn)中，會(huì)產(chǎn)生勵(lì)磁涌流，其值可達(dá)6～8倍的額定電流。初始勵(lì)磁涌流衰減較快，普通經(jīng)0.5～1s后即可衰減到額定電流值的0.25～0.5倍。但完整衰減的時(shí)間較長(zhǎng)，大容量的變壓器可達(dá)幾十秒。由于勵(lì)磁涌流會(huì)產(chǎn)生很大的電動(dòng)力，為了考驗(yàn)變壓器的機(jī)械強(qiáng)度，同時(shí)調(diào)查勵(lì)磁涌流衰減初期能否會(huì)形成繼電維護(hù)安裝誤動(dòng)，故需做沖擊實(shí)驗(yàn)。 </p> <p> 另外在拉開(kāi)空載運(yùn)轉(zhuǎn)變壓器時(shí)，有可能產(chǎn)生操作過(guò)電壓。在中性點(diǎn)不接地或經(jīng)消弧線圈接地的電力系統(tǒng)中，其過(guò)電壓幅值可達(dá)4～4.5倍相電壓；在中性點(diǎn)直接接地時(shí)，也達(dá)3倍相電壓。為了檢查變壓器絕緣強(qiáng)度能否接受電壓或操作過(guò)電壓，也需做沖擊實(shí)驗(yàn) </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西安全工器具檢測(cè)中心" src="http://tyunfile.71360.com/UpLoadFile/2019/10/9/15/637062304516852248_hapn_6534341.jpg"></div></p><br 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