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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="x7z3qnx" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533503486328/5517286.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="byax8y7" 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>東莞高壓跌落式熔斷器供應(yīng)商,熔斷器</p><p><span>***更新：</span>2020-08-06 15:17:47</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="znacz88" 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="8a9ogyn" class="page-proshow02"><p class="title">詳細說明</p><div id="s3cw7cr" class="box"><p><p> 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，東莞高壓跌落式熔斷器供應(yīng)商，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，東莞高壓跌落式熔斷器供應(yīng)商，熔斷器甚至不會熔斷。因此，在一定過載電流范圍內(nèi)，東莞高壓跌落式熔斷器供應(yīng)商，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> <br /> </p> <p> <br /> 熔斷器的維護方面我們應(yīng)該注意什么？東莞高壓跌落式熔斷器供應(yīng)商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞高壓跌落式熔斷器供應(yīng)商,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533503486328/5517286.jpg"></div><p> 充有石英砂的熔斷器，當(dāng)熔體熔斷時，電弧在石英砂中的狹溝里燃燒，根據(jù)狹縫滅弧原理，電弧與周圍填料緊密接觸受到冷卻而熄滅，它的熄弧能力很強，可在電流未到峰值之前就熄滅電弧，具有限流作用。但它會產(chǎn)生過電壓，其過電壓的情況與使用地點的電壓有關(guān)，如果用在低于額定電壓的電網(wǎng)中，過電壓可能達到3.5-4倍的相電壓，將使電網(wǎng)產(chǎn)生電暈，甚至損壞電網(wǎng)中的設(shè)備。如果用在高于其額定電壓的電網(wǎng)中，則熔斷器產(chǎn)生的過電壓有可能引起電弧重燃，無法再度熄滅，會造成熔斷器外殼燒壞:而用在額定電壓相同的電網(wǎng)中，熔斷時的過電壓*為2-2.5倍的電網(wǎng)相電壓，比設(shè)備的線電壓稍高一些。 </p> <p> <br /> </p> <p> <br /> 東莞高壓跌落式熔斷器供應(yīng)商我們怎么選購熔斷器？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞高壓跌落式熔斷器供應(yīng)商,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533502812500/1137116.jpg"></div><p> 跌落式熔斷器的注意事項：我們在操作的時候是要戴防護色眼鏡這也是為了避免在操作的時候出現(xiàn)故障卻不知道從而拉還有合的時候會發(fā)生弧光，那樣的話很容易灼傷眼鏡的還需要同時站在一個比較可靠的位置操作的時候不能夠猶豫需要要果斷并且迅速，但是迅速也不可以用大力我們用的力是需要適中的也是為了避免沖擊從而造成不可逆轉(zhuǎn)的對瓷體的損傷。當(dāng)我們合的時候首先需要要合兩側(cè)也就是兩邊的相然后再合中間相，而拉就需要先拉開中間相了以后然后拉來兩側(cè)這是開關(guān)的時候需要注意的可千萬別弄錯了，而且我們在操作的時候是不允許帶負荷操作的。 </p> <p> <br /> </p> <p> <br /> </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。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，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。哪些方面是我們選擇跌落式熔斷器需要注意的呢？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞高壓跌落式熔斷器供應(yīng)商,熔斷器" src="http://tyunfile.71360.com/UploadFile/pxbaixin/637188533502880859/802124.jpg"></div><p> 高壓跌落式熔斷器的內(nèi)熔絲一般用銅和銀等材料制成，因為銅和銀的電阻率很小，導(dǎo)電性能強，所以導(dǎo)線可以做細些，這樣有利于滅弧,但它們的熔點很高，可使熔斷器的熔管過熱，易于損壞。所以用銀和銅質(zhì)做的熔絲，均采用人為的方法使熔絲的熔點降低，即在熔絲上焊上小錫珠或鉛珠。當(dāng)熔絲加熱到錫(232℃)或鉛(327℃)的熔點時，小球珠先熔化，使熔絲中斷，中斷點所形成的電弧使熔絲朝兩邊熔化，從而保護線路或電氣設(shè)備不受過大電流的發(fā)熱而損壞。 </p> <p> <br /> </p> <p> <br /> 熔斷器的主要組成構(gòu)造是什么？東莞高壓跌落式熔斷器供應(yīng)商</p><p style="text-indent:25px">熔斷器該怎么去維護它呢？東莞高壓跌落式熔斷器供應(yīng)商</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，這樣可以防止風(fēng)吹電弧造成短路。東莞高壓跌落式熔斷器供應(yīng)商</p><p style="text-indent:25px">江西百新電瓷電氣有限公司坐落在工業(yè)園，是一家專業(yè)的高低壓電瓷、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）公司。公司目前擁有301~500人員工，為員工提供廣闊的發(fā)展平臺與成長空間，為客戶提供高質(zhì)高效的產(chǎn)品服務(wù)，深受員工與客戶好評。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準(zhǔn)則。公司致力于打造***的[ "絕緣子", "電力元器件", "避雷器", "熔斷器" ]。目前公司已經(jīng)成為[ "絕緣子", "電力元器件", "避雷器", "熔斷器" ]的**企業(yè)，正積蓄著更大的能量，向更廣闊的空間、更***的領(lǐng)域拓展。</p></p><br 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