南通高壓跌落式熔斷器公司歡迎咨詢江西百新電瓷電氣供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="熔斷器的動作是靠熔體的熔斷來實現(xiàn)的，熔斷器有個非常明顯的特點性能，就是安秒特性。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"><meta name="keywords" content="南通高壓跌落式熔斷器公司,熔斷器"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="s5nuwdk" 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="o3nfhe8" 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>南通高壓跌落式熔斷器公司,熔斷器</p><p><span>***更新：</span>2020-08-29 07:21:59</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="gzwy3ok" 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="q2ac4wy" class="page-proshow02"><p class="title">詳細說明</p><div id="wl7bifh" class="box"><p><p style="text-indent:25px">熔斷器的動作是靠熔體的熔斷來實現(xiàn)的，熔斷器有個非常明顯的特點性能，就是安秒特性。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，南通高壓跌落式熔斷器公司，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，南通高壓跌落式熔斷器公司，南通高壓跌落式熔斷器公司，熔斷器不會熔斷，可繼續(xù)使用。熔斷器的選擇那么多，我們應(yīng)該怎么挑選？南通高壓跌落式熔斷器公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通高壓跌落式熔斷器公司,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533639541015/7254425.jpg"></div><p style="text-indent:25px">低壓配電系統(tǒng)中熔斷器是起保護作用的一種電器，熔斷器多應(yīng)用于電網(wǎng)保護和用電設(shè)備保護，當(dāng)電網(wǎng)或用電設(shè)備發(fā)生短路故障或過載時，可自動切斷電路，避免電器設(shè)備損壞，防止***蔓延。熔斷器由絕緣底座（或支持件）、觸頭、熔體等組成，熔體是熔斷器的主要工作部分，熔體相當(dāng)于串聯(lián)在電路中的一段特殊的導(dǎo)線，當(dāng)電路發(fā)生短路或過載時，電流過大，熔體因過熱而熔化，從而切斷電路。熔體常做成絲狀、柵狀或片狀。熔體材料具有相對熔點低、特性穩(wěn)定、易于熔斷的特點。一般采用鉛錫合金、鍍銀銅片、鋅、銀等金屬。在熔體熔斷切斷電路的過程中會產(chǎn)生電弧，為了很好地熄滅電弧，一般均將熔體安裝在熔斷器殼體內(nèi)，采取措施，快速熄滅電弧。江西熔斷器供應(yīng)商熔斷器的安裝應(yīng)該注意什么？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通高壓跌落式熔斷器公司,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533503486328/5517286.jpg"></div><p> 熔斷器按照使用電壓可分為高壓熔斷器和低壓熔斷器。根據(jù)保護對象可分為保護變壓器用和一般電氣設(shè)備用的熔斷器、保護電壓互感器的熔斷器、保護電力電容器的熔斷器、保護半導(dǎo)體元件的熔斷器、保護電動機的熔斷器和保護家用電器的熔斷器等。根據(jù)結(jié)構(gòu)可分為敞開式、半封閉式、管式和噴射式熔斷器。敞開式熔斷器結(jié)構(gòu)簡單,熔體完全暴露于空氣中,由瓷柱作支撐，沒有支座，適合低壓戶外使用。分斷電流時在大氣中產(chǎn)生較大的聲光。<span style="font-size:12px;">半封閉式熔斷器的熔體裝在瓷架上，插入兩端帶有金屬插座的瓷盒中,適于低壓戶內(nèi)使用分斷電流時,所產(chǎn)生的聲光被瓷盒擋住。管式熔斷器的熔體裝在熔斷體內(nèi)。然后插在支座或直接連在電路上運用。熔斷體是兩端套有金屬帽或帶有觸刀的完全密封的絕緣管。</span> </p> <p> <br /> </p><p style="text-indent:25px">跌落式熔斷器適用于環(huán)境空氣無導(dǎo)電粉塵、無腐蝕性氣體及易燃、易爆等危險性環(huán)境，年度溫差變比在±40℃以內(nèi)的戶外場所。其選擇是按照額定電壓和額定電流兩項參數(shù)進行，也就是熔斷器的額定電壓需要與被保護設(shè)備(線路)的額定電壓相匹配。熔斷器具的額定電流應(yīng)大于或等于熔體的額定電流。而熔體的額定電流可選為額定負荷電流的1.5～2倍。此外，應(yīng)按被保護系統(tǒng)三相短路容量，對所選定的跌落式熔斷器進行校核。保證被保護系統(tǒng)三相短路容量小于熔斷器額定斷開容量的上限，但需要大于額定斷開容量的下限。若熔斷器的額定斷開容量(一般是指其上限)過大，很可能使被保護系統(tǒng)三相短路容量小于熔斷器額定斷開容量的下限，造成在熔體熔斷時難以滅弧，引起熔管燒毀，等狀況。熔斷器該如何去維護它呢？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通高壓跌落式熔斷器公司,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533639609375/588778.jpg"></div><p> 10kV跌落式熔斷器適合于環(huán)境空氣無導(dǎo)電粉塵、無腐蝕性氣體及易燃、易爆等危險性環(huán)境，年度溫差變比在±40℃以內(nèi)的戶外場所。其選擇是按照額定電壓和額定電流兩項參數(shù)進行，也就是熔斷器的額定電壓需要與被保護設(shè)備(線路)的額定電壓相匹配。熔斷器具的額定電流應(yīng)大于或等于熔體的額定電流。而熔體的額定電流可選為額定負荷電流的1.5～2倍。此外，應(yīng)按被保護系統(tǒng)三相短路容量，對所選定的熔斷器進行校核。保證被保護系統(tǒng)三相短路容量小于熔斷器額定斷開容量的上限，但需要大于額定斷開容量的下限。若熔斷器的額定斷開容量(一般是指其上限)過大，很可能使被保護系統(tǒng)三相短路容量小于熔斷器額定斷開容量的下限，造成在熔體熔斷時難以滅弧，引起熔管燒毀，等***。一些供電單位仍處于農(nóng)網(wǎng)改造高峰，在選用該類熔斷器時，需要嚴把產(chǎn)品質(zhì)量關(guān)，保護合格的設(shè)備入網(wǎng)，同時要注意到它的額定斷開容量上限值和下限值。 </p> <p> <br /> </p> <p> <br /> 跌落式熔斷器有哪些優(yōu)點？江西熔斷器供應(yīng)商</p><p style="text-indent:25px">熔斷器該怎么去維護它呢？南通高壓跌落式熔斷器公司</p><p> 跌落式熔斷器操作時由兩人進行(一人監(jiān)護，一人操作)，但需要戴經(jīng)試驗合格的絕緣手套，穿絕緣靴、戴護目眼鏡，使用電壓等級相匹配的合格絕緣棒操作，在雷電或者大雨的氣候下禁止操作。在拉閘操作時，一般規(guī)定為先拉斷中間相，再拉背風(fēng)的邊相，之后拉斷迎風(fēng)的邊相。這是因為配電變壓器由三相運行改為兩相運行，拉斷中間相時所產(chǎn)生的電弧火花小，不致造成相間短路。其次是拉斷背風(fēng)邊相，因為中間相已被拉開，背風(fēng)邊相與迎風(fēng)邊相的距離增加了一倍，即使有過電壓產(chǎn)生，造成相間短路的可能性也很小。之后拉斷迎風(fēng)邊相時，*有對地的電容電流，產(chǎn)生的電火花則已很輕微。合閘的時候操作順序拉閘時相反，先合迎風(fēng)邊相，再合背風(fēng)的邊相，之后合上中間相。操作熔管是一項頻繁的項目，注意不到便會造成觸頭燒傷引起接觸不良，使觸頭過熱，彈簧退火，促使觸頭接觸更為不良，形成惡性循環(huán)。因此，拉、合熔管時要用力適度，合好后，要仔細檢查鴨嘴舌頭能緊緊扣住舌頭長度三分之二以上，可用拉閘桿鉤住上鴨嘴向下壓幾下，再輕輕試拉，檢查是否合好。合閘時未能到位或未合牢靠，熔斷器上靜觸頭壓力不足，很容易造成觸頭燒傷或者熔管自行跌落。 </p> <p> <br /> </p> <p> <br /> 南通高壓跌落式熔斷器公司</p><p style="text-indent:25px">江西百新電瓷電氣有限公司是一家高低壓電瓷、電器、絕緣子、工業(yè)陶瓷、五金配件、塑膠制品、配電開關(guān)控制設(shè)備、電力元器件、電線電纜及電纜附件、機電設(shè)備、高低壓電器開關(guān)、斷路器、隔離開關(guān)、熔斷器、避雷器、智能配電設(shè)備、節(jié)能設(shè)備、三項不平衡自動調(diào)節(jié)裝置、電力金具與附件的生產(chǎn)、銷售、技術(shù)研發(fā)，玻璃絕緣子、瓷（玻璃/復(fù)合）絕緣子的技術(shù)研發(fā)、銷售，及相關(guān)產(chǎn)品的進出口貿(mào)易（依法須經(jīng)批準(zhǔn)的項目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動）的公司，是一家擁有301~500人***員工的企業(yè)。江西百新電瓷電氣致力于為客戶提供質(zhì)量的絕緣子，電力元器件，避雷器，熔斷器，一切以用戶需求為中心，深受廣大客戶的歡迎。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)。江西百新電瓷電氣憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1079546.html</p></div></div></div></div></div><div id="3apb92h" class="page-right twoColRt"><div id="pjgycyu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="sroqfgd" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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