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clearfix"><div id="sw2skmd" class="twoCol"><div id="rgipbn8" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_gydqew/">高壓電器</a>?<a href="http://www.cdcfah.com/cp/third-gydqew_gyrdqzr/">高壓熔斷器</a>?珠海跌落式熔斷器選型值得信賴江西百新電瓷電氣供應(yīng)</p><div id="mkb23h7" class="leftbox clearfix"><h1>珠海跌落式熔斷器選型值得信賴江西百新電瓷電氣供應(yīng)</h1><div id="q2dnpgc" class="proBig"><div id="ug2hovc" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533639541015/7254425.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jdp2zvr" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533639541015/7254425.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8gulizl" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江西省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>珠海跌落式熔斷器選型,熔斷器</p><p><span>***更新：</span>2020-08-14 16:20:12</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8ryahj7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江西百新電瓷電氣有限公司</a></p><p><span>聯(lián)系人：</span>黃女士</p><p><span>郵箱: </span>bxdc360@163.com</p><p><span>電話: </span>13697997707</p><p><span>傳真: </span>0799_</p><p><span>網(wǎng)址: </span>http://www.jx-ne.com</p><p><span>手機: </span>0799-6378010</p><p><span>地址: </span>工業(yè)園</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="8pj2w77" class="page-proshow02"><p class="title">詳細說明</p><div id="8wd8fz2" class="box"><p><p style="text-indent:25px">熔斷器組成的三個部分主要由熔體、外殼和支座，其中熔體是控制熔斷特性的關(guān)鍵元件。熔體的材料、尺寸和形狀決定了熔斷特性。熔體材料分為低熔點和高熔點兩類，珠海跌落式熔斷器選型。低熔點材料如鉛和鉛合金，其熔點低容易熔斷，因為其電阻率較大，所以制成熔體的截面尺寸較大，熔斷時產(chǎn)生的金屬蒸氣較多，只適用于低分斷能力的熔斷器。高熔點材料如銅、銀，其熔點高，不容易熔斷，但因為其電阻率較低，可制成比低熔點熔體較小的截面尺寸，珠海跌落式熔斷器選型，珠海跌落式熔斷器選型，熔斷時產(chǎn)生的金屬蒸氣少，適用于**斷能力的熔斷器。熔體的形狀分為絲狀和帶狀兩類。熔斷器的構(gòu)成部件主要是什么？珠海跌落式熔斷器選型</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海跌落式熔斷器選型,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533639541015/7254425.jpg"></div><p> 在春檢停電檢修時應(yīng)對熔斷器做如下內(nèi)容的檢查：靜、動觸頭接觸是否吻合，緊密完好，有否燒傷痕跡。熔斷器轉(zhuǎn)動部位是不是靈活，是不是銹蝕、轉(zhuǎn)動不靈等異常，零部件是不是損壞、彈簧有否銹蝕。熔體本身有否受到損傷，經(jīng)長期通電后有無發(fā)熱伸長過多變得松弛無力。熔管經(jīng)多次動作管內(nèi)產(chǎn)氣用消弧管是否燒傷及日曬雨淋后是否損傷變形、長度是不是縮短。清掃絕緣子并檢查有無損傷、裂紋或放電痕跡，拆開上、下引線后，用2500V搖表測試絕緣電阻應(yīng)大于300MΩ。檢查熔斷器上下連接引線有無松動、放電、過熱現(xiàn)象。對上述項目檢查出的缺點一定要認真檢修處理。 </p> <p> <br /> </p> <p> <br /> 珠海跌落式熔斷器選型熔斷器的參數(shù)和型號有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海跌落式熔斷器選型,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533503652343/6659730.jpg"></div><p style="text-indent:25px">對熔體來說，其動作電流和動作時間特性即熔斷器的安秒特性，也叫反時延特性，即：過載電流小時，熔斷時間長；過載電流大時，熔斷對安秒特性的理解，從焦耳定律上可以看到Q=I2*R*T，串聯(lián)回路里，熔斷器的R值基本不變，發(fā)熱量與電流I的平方成正比，與發(fā)熱時間T成正比，也就是說：當(dāng)電流較大時，熔體熔斷所需的時間就較短。而電流較小時，熔體熔斷所需用的時間就較長，甚至如果熱量積累的速度小于熱擴散的速度，熔斷器溫度就不會上升到熔點，熔斷器甚至不會熔斷。因此，在一定過載電流范圍內(nèi)，當(dāng)電流恢復(fù)正常時，熔斷器不會熔斷，可繼續(xù)使用。</p><p style="text-indent:25px">高壓跌落式熔斷器三相的操作順序。停電操作時，應(yīng)先拉中間相，后拉兩邊相。送電時則先合兩邊相，后合中間相。停電時先拉中相的原因主要是考慮到中相切斷時的電流要小于邊相(電路一部分負荷轉(zhuǎn)由兩相承擔(dān))，因而電弧小，對兩邊相無危險。操作第二相(邊相)跌落式熔斷器時，電流較大，而此時中相已拉開，另兩個跌落式熔斷器相距較遠，可防止電弧拉長造成相間短路。遇到大風(fēng)時，要按先拉中間相，再拉背風(fēng)相，之后拉迎風(fēng)相的順序進行停電。送電時則先合迎風(fēng)相，再合背鳳相，末尾合中間相，這樣能夠防止風(fēng)吹電弧造成短路。熔斷器有哪些不同的分類？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海跌落式熔斷器選型,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533502812500/1137116.jpg"></div><p style="text-indent:25px">當(dāng)電流超過規(guī)定值時，以本身產(chǎn)生的熱量使熔體熔斷，斷開電路的一種電器叫做熔斷器。熔斷器是根據(jù)電流超過規(guī)定值一段時間后，用其自身產(chǎn)生的熱量使熔體熔化，從而使電路斷開；采用這種原理制成的一種電流保護器。熔斷器多應(yīng)用于高低壓配電系統(tǒng)和控制系統(tǒng)以及用電設(shè)備中，作為短路和過電流的保護器，是應(yīng)用比較普遍的保護器件之一。運用金屬導(dǎo)體作為熔體串聯(lián)于電路中，當(dāng)過載或短路電流通過熔體時，由于其自身發(fā)熱而熔斷，從而分斷電路的一種電器。熔斷器有哪一些型號？珠海跌落式熔斷器選型</p><p style="text-indent:25px">選擇跌落式熔斷器時，我們應(yīng)該先了解哪些方面？珠海跌落式熔斷器選型</p><p> 熔絲不正常熔斷熔絲熔斷引起掉管，從理論上說是熔絲保護起到了作用。但是，從往年的統(tǒng)計圖表中可明顯地看出，不正常熔斷有時間規(guī)律和氣候規(guī)律，反映在每年的7～8月間，氣溫高、用電負荷大、配變負載上升快，熔絲熔斷掉管故障集中多發(fā)。這說明了熔絲不正常熔斷，其原因有：(1)熔絲容量與配變?nèi)萘颗渲貌划?dāng)，達不到熔絲配置的技術(shù)標準。(2)熔絲的質(zhì)量不過關(guān)，熔斷特性比較差。熔絲軋斷從往年的統(tǒng)計圖表中還可看出，熔絲由于軋傷引起掉管沒有特別的時間規(guī)律和氣候規(guī)律，而從熔絲本體軋斷的部位來分析，發(fā)現(xiàn)一是熔絲兩端固定的螺栓處，二是熔絲在熔絲管兩端的金屬鑄件轉(zhuǎn)角處。 </p> <p> <br /> </p> <p> <br /> 珠海跌落式熔斷器選型</p><p style="text-indent:25px">江西百新電瓷電氣有限公司創(chuàng)立于2003-02-24，是一家生產(chǎn)型公司。公司業(yè)務(wù)分為[ "絕緣子", "電力元器件", "避雷器", "熔斷器" ]等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供質(zhì)量的產(chǎn)品和服務(wù)。公司從事電工電氣多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供質(zhì)量的產(chǎn)品及服務(wù)。在社會各界的鼎力支持下，經(jīng)過公司所有人員的努力，公司自2003-02-24成立以來，年營業(yè)額達到1億元以上。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/914889.html</p></div></div></div></div></div><div id="imt77gv" class="page-right twoColRt"><div id="lpr97np" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="d8u3r7d" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="aprlxol" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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