熔(rong)斷(duan)器(qi)有各種(zhong)不同(tong)的(de)(de)熔(rong)斷(duan)特性(xing)曲線，可以(yi)適用于(yu)不同(tong)類型保(bao)護(hu)對象的(de)(de)需要。限流(liu)特性(xing)由于(yu)快速熔(rong)斷(duan)器(qi)的(de)(de)熔(rong)體為具有一系列(lie)圓孔狹(xia)頸的(de)(de)矩形薄片，且充有石英(ying)砂滅(mie)(mie)弧(hu)介質[1]。圓孔狹(xia)頸處(chu)的(de)(de)截面積小(xiao)，熱容量小(xiao)，發生短(duan)(duan)路(lu)(lu)(lu)故(gu)障(zhang)時，故(gu)障(zhang)電(dian)(dian)(dian)(dian)(dian)流(liu)尚未達(da)到預期(qi)的(de)(de)短(duan)(duan)路(lu)(lu)(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)時，即被(bei)熔(rong)斷(duan)，電(dian)(dian)(dian)(dian)(dian)弧(hu)被(bei)石英(ying)砂分(fen)隔成(cheng)(cheng)許多小(xiao)段。這樣，既(ji)限制了短(duan)(duan)路(lu)(lu)(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)增加(jia)，亦加(jia)速電(dian)(dian)(dian)(dian)(dian)弧(hu)的(de)(de)熄(xi)滅(mie)(mie)。分(fen)斷(duan)能力強(qiang)發生短(duan)(duan)路(lu)(lu)(lu)故(gu)障(zhang)時，圓孔狹(xia)頸處(chu)首先被(bei)熔(rong)斷(duan)，電(dian)(dian)(dian)(dian)(dian)弧(hu)被(bei)石英(ying)砂分(fen)隔成(cheng)(cheng)許多小(xiao)段，電(dian)(dian)(dian)(dian)(dian)弧(hu)被(bei)很快熄(xi)滅(mie)(mie)。由于(yu)石英(ying)砂是(shi)絕緣(yuan)的(de)(de)，電(dian)(dian)(dian)(dian)(dian)弧(hu)熄(xi)滅(mie)(mie)后，熔(rong)斷(duan)器(qi)立即變成(cheng)(cheng)一個絕緣(yuan)體，將電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)斷(duan)。因而快速熔(rong)斷(duan)器(qi)分(fen)斷(duan)能力強(qiang)，可高(gao)達(da)50kA。負載設(she)備承受的(de)(de)沖擊能量小(xiao)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)出現短(duan)(duan)路(lu)(lu)(lu)故(gu)障(zhang)時，負載設(she)備承受的(de)(de)沖擊能量為W=I2Rt式中，I—短(duan)(duan)路(lu)(lu)(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)；R—電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)；t—從短(duan)(duan)路(lu)(lu)(lu)故(gu)障(zhang)發生到電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)被(bei)切(qie)斷(duan)的(de)(de)時間。快速熔(rong)斷(duan)器(qi)分(fen)斷(duan)的(de)(de)時間短(duan)(duan)，且有很好的(de)(de)限流(liu)作用。熔(rong)斷(duan)器(qi)俗(su)稱保(bao)險，是(shi)低壓配電(dian)(dian)(dian)(dian)(dian)系統和電(dian)(dian)(dian)(dian)(dian)動機控制電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中簡單，常用的(de)(de)保(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)器(qi)。山(shan)東(dong)進口(kou)美(mei)爾森(sen)羅蘭熔(rong)斷(duan)器(qi)供應

熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)只(zhi)能起到(dao)短(duan)路保(bao)護(hu)作(zuo)用(yong)，不能起過(guo)載保(bao)護(hu)作(zuo)用(yong)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)選擇，主要(yao)依據負載的(de)(de)(de)(de)(de)保(bao)護(hu)特性和(he)短(duan)路電流(liu)的(de)(de)(de)(de)(de)大小選擇熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)類(lei)(lei)型。...[熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)]熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)外形(xing)與結(jie)構(gou)圖(tu)解日期(qi)(qi)：2020-05-2308:23:59有磁(ci)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)外形(xing)與結(jie)構(gou)圖(tu)，包括RC1A系(xi)列瓷插式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)、RL1系(xi)列螺旋式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)、RM12系(xi)列無(wu)填(tian)料(liao)封(feng)閉管式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)、RT0有填(tian)料(liao)封(feng)閉管式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)等的(de)(de)(de)(de)(de)外形(xing)與結(jie)構(gou)圖(tu)。...[熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)]熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)安(an)(an)裝(zhuang)與熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)更(geng)換注(zhu)(zhu)意(yi)事(shi)項(xiang)日期(qi)(qi)：2020-05-2308:18:37有關熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)安(an)(an)裝(zhuang)與使(shi)用(yong)注(zhu)(zhu)意(yi)事(shi)項(xiang)，包括安(an)(an)裝(zhuang)前檢(jian)查熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)參(can)數檢(jian)查、安(an)(an)裝(zhuang)時(shi)(shi)應(ying)保(bao)證(zheng)(zheng)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體和(he)觸刀(dao)，以及觸刀(dao)和(he)觸刀(dao)座之間接觸緊密可靠(kao)，更(geng)換熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)絲等時(shi)(shi)的(de)(de)(de)(de)(de)注(zhu)(zhu)意(yi)事(shi)項(xiang)等。...[熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)]熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)如何更(geng)換？熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體更(geng)換注(zhu)(zhu)意(yi)事(shi)項(xiang)日期(qi)(qi)：2020-05-2307:48:30有關熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)更(geng)換方(fang)法(fa)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體更(geng)換注(zhu)(zhu)意(yi)事(shi)項(xiang)，要(yao)求(qiu)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體更(geng)換的(de)(de)(de)(de)(de)安(an)(an)全要(yao)求(qiu)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)后，應(ying)及時(shi)(shi)更(geng)換，以保(bao)證(zheng)(zheng)負載正(zheng)常運行(xing)，一起來了解下。...[熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)]高(gao)壓熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)分類(lei)(lei)方(fang)法(fa)_高(gao)壓熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)優缺點(dian)_高(gao)壓熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)作(zuo)用(yong)日期(qi)(qi)：2020-05-2307:48:28有關高(gao)壓熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)分類(lei)(lei)方(fang)法(fa)，按裝(zhuang)設的(de)(de)(de)(de)(de)地點(dian)、按熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)管的(de)(de)(de)(de)(de)安(an)(an)裝(zhuang)情況(kuang)、按開斷(duan)(duan)(duan)(duan)(duan)(duan)電流(liu)的(de)(de)(de)(de)(de)方(fang)式(shi)對高(gao)壓熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)進行(xing)分類(lei)(lei)，并介紹了熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)優缺點(dian)，高(gao)壓熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)功能作(zuo)用(yong)等。山東進口美爾森羅蘭熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)供應(ying)核對熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)額定電壓是(shi)否(fou)相符，額定分斷(duan)(duan)(duan)(duan)(duan)(duan)能力是(shi)否(fou)大于線路預(yu)期(qi)(qi)短(duan)路電流(liu)。

熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)主要由(you)(you)(you)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)、外殼(ke)和支座(zuo)3部(bu)分(fen)組成(cheng)，其中(zhong)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)是控制(zhi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)特(te)(te)(te)性(xing)(xing)的(de)(de)(de)(de)(de)關鍵元件。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)的(de)(de)(de)(de)(de)材料(liao)、尺(chi)(chi)(chi)寸和形(xing)(xing)狀(zhuang)(zhuang)決(jue)定了熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)特(te)(te)(te)性(xing)(xing)。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)材料(liao)分(fen)為低(di)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點和高熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點兩(liang)類(lei)。低(di)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點材料(liao)如鉛和鉛合金，其熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點低(di)容易熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)，由(you)(you)(you)于(yu)其電(dian)阻(zu)率(lv)較(jiao)(jiao)大(da)，故制(zhi)成(cheng)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)的(de)(de)(de)(de)(de)截面(mian)尺(chi)(chi)(chi)寸較(jiao)(jiao)大(da)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)時(shi)(shi)(shi)(shi)產(chan)生(sheng)的(de)(de)(de)(de)(de)金屬(shu)(shu)蒸氣較(jiao)(jiao)多，只(zhi)適用(yong)于(yu)低(di)分(fen)斷(duan)(duan)(duan)能力(li)的(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)。高熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點材料(liao)如銅、銀(yin)，其熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點高，不容易熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)，但由(you)(you)(you)于(yu)其電(dian)阻(zu)率(lv)較(jiao)(jiao)低(di)，可(ke)(ke)(ke)制(zhi)成(cheng)比(bi)(bi)低(di)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)點熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)較(jiao)(jiao)小的(de)(de)(de)(de)(de)截面(mian)尺(chi)(chi)(chi)寸，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)時(shi)(shi)(shi)(shi)產(chan)生(sheng)的(de)(de)(de)(de)(de)金屬(shu)(shu)蒸氣少，適用(yong)于(yu)高分(fen)斷(duan)(duan)(duan)能力(li)的(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)的(de)(de)(de)(de)(de)形(xing)(xing)狀(zhuang)(zhuang)分(fen)為絲狀(zhuang)(zhuang)和帶(dai)狀(zhuang)(zhuang)兩(liang)種(zhong)。改變(bian)變(bian)截面(mian)的(de)(de)(de)(de)(de)形(xing)(xing)狀(zhuang)(zhuang)可(ke)(ke)(ke)改變(bian)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)的(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)特(te)(te)(te)性(xing)(xing)。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)有各種(zhong)不同(tong)的(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)特(te)(te)(te)性(xing)(xing)曲線(xian)，可(ke)(ke)(ke)以適用(yong)于(yu)不同(tong)類(lei)型保護對象的(de)(de)(de)(de)(de)需要。安(an)秒(miao)特(te)(te)(te)性(xing)(xing)：熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)的(de)(de)(de)(de)(de)動作是靠(kao)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)的(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)來(lai)實現的(de)(de)(de)(de)(de)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)有個非(fei)常明顯的(de)(de)(de)(de)(de)特(te)(te)(te)性(xing)(xing)，就(jiu)是安(an)秒(miao)特(te)(te)(te)性(xing)(xing)。對熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)來(lai)說，其動作電(dian)流和動作時(shi)(shi)(shi)(shi)間特(te)(te)(te)性(xing)(xing)即熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)的(de)(de)(de)(de)(de)安(an)秒(miao)特(te)(te)(te)性(xing)(xing)，也叫反時(shi)(shi)(shi)(shi)延(yan)特(te)(te)(te)性(xing)(xing)，即：過載電(dian)流小時(shi)(shi)(shi)(shi)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)時(shi)(shi)(shi)(shi)間長；過載電(dian)流大(da)時(shi)(shi)(shi)(shi)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)（圖(tu)6）時(shi)(shi)(shi)(shi)間短。對安(an)秒(miao)特(te)(te)(te)性(xing)(xing)的(de)(de)(de)(de)(de)理解，我們從焦耳定律上可(ke)(ke)(ke)以看(kan)到Q=I2*R*T，串(chuan)聯回路(lu)里，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)的(de)(de)(de)(de)(de)R值基本不變(bian)，發熱量與(yu)(yu)電(dian)流I的(de)(de)(de)(de)(de)平(ping)方成(cheng)正(zheng)比(bi)(bi)，與(yu)(yu)發熱時(shi)(shi)(shi)(shi)間T成(cheng)正(zheng)比(bi)(bi)，也就(jiu)是說：當電(dian)流較(jiao)(jiao)大(da)時(shi)(shi)(shi)(shi)，熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)所需的(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)間就(jiu)較(jiao)(jiao)短。而電(dian)流較(jiao)(jiao)小時(shi)(shi)(shi)(shi)。

宜(yi)采用(yong)具(ju)有限流作(zuo)(zuo)用(yong)的(de)(de)(de)(de)(de)(de)(de)RT0和(he)(he)RTl2系列的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流可(ke)按(an)以下方法選擇：1、保護(hu)(hu)無起(qi)動(dong)(dong)過(guo)程的(de)(de)(de)(de)(de)(de)(de)平穩負(fu)載如照明線路、電(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)爐等時(shi)，熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流略大(da)(da)于(yu)(yu)或(huo)等于(yu)(yu)負(fu)荷(he)電(dian)(dian)(dian)(dian)路中(zhong)的(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流。2、保護(hu)(hu)單臺長(chang)期工(gong)(gong)作(zuo)(zuo)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)電(dian)(dian)(dian)(dian)流可(ke)按(an)起(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)流選取，也可(ke)按(an)下式(shi)選取：IRN≥(～)IN式(shi)中(zhong)IRN--熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流；IN--電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流。如果(guo)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)頻繁起(qi)動(dong)(dong)，式(shi)中(zhong)系數可(ke)適(shi)當加大(da)(da)至3～，具(ju)體(ti)(ti)應(ying)根據實際(ji)情況而定(ding)(ding)。3、保護(hu)(hu)多臺長(chang)期工(gong)(gong)作(zuo)(zuo)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)（供電(dian)(dian)(dian)(dian)干線）IRN≥(～)INmax+ΣININmax-容量單臺電(dian)(dian)(dian)(dian)機(ji)的(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流。ΣIN其(qi)余.電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)流之(zhi)和(he)(he)。熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)主要分(fen)類編輯熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)根據使(shi)用(yong)電(dian)(dian)(dian)(dian)壓(ya)可(ke)分(fen)為高(gao)壓(ya)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)和(he)(he)低(di)壓(ya)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)。熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)（圖8）根據保護(hu)(hu)對象可(ke)分(fen)為保護(hu)(hu)變壓(ya)器(qi)用(yong)和(he)(he)一般電(dian)(dian)(dian)(dian)氣設備用(yong)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)、保護(hu)(hu)電(dian)(dian)(dian)(dian)壓(ya)互感(gan)器(qi)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)、保護(hu)(hu)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)容器(qi)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)、保護(hu)(hu)半導(dao)體(ti)(ti)元件的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)、保護(hu)(hu)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)和(he)(he)保護(hu)(hu)家用(yong)電(dian)(dian)(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)等。根據結構(gou)可(ke)分(fen)為敞開(kai)(kai)式(shi)、半封閉式(shi)、管式(shi)和(he)(he)噴射式(shi)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)。敞開(kai)(kai)式(shi)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)結構(gou)簡(jian)單,熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)完全暴露于(yu)(yu)空氣中(zhong),由瓷柱作(zuo)(zuo)支(zhi)撐，沒有支(zhi)座，適(shi)于(yu)(yu)低(di)壓(ya)戶(hu)外使(shi)用(yong)。分(fen)斷(duan)(duan)(duan)電(dian)(dian)(dian)(dian)流時(shi)在(zai)大(da)(da)氣中(zhong)產生較大(da)(da)的(de)(de)(de)(de)(de)(de)(de)聲光。半封閉式(shi)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)裝(zhuang)在(zai)瓷架上，插入兩(liang)端帶有金屬插座的(de)(de)(de)(de)(de)(de)(de)瓷盒中(zhong),適(shi)于(yu)(yu)低(di)壓(ya)戶(hu)內使(shi)用(yong)。分(fen)斷(duan)(duan)(duan)電(dian)(dian)(dian)(dian)流時(shi)。根據其(qi)工(gong)(gong)作(zuo)(zuo)原(yuan)理(li)，熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)對于(yu)(yu)輕度過(guo)載不是很敏感(gan)，熔(rong)(rong)(rong)(rong)(rong)體(ti)(ti)熔(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)所(suo)需時(shi)間(jian)比較久(jiu)。

熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)（fuse）是指當電(dian)(dian)(dian)流(liu)超過(guo)(guo)規(gui)定(ding)值時，以(yi)本身產生(sheng)的(de)熱量(liang)使(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)，斷(duan)(duan)(duan)開電(dian)(dian)(dian)路(lu)(lu)的(de)一(yi)(yi)種(zhong)電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)是根據電(dian)(dian)(dian)流(liu)超過(guo)(guo)規(gui)定(ding)值一(yi)(yi)段時間后，以(yi)其自身產生(sheng)的(de)熱量(liang)使(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)化(hua)，從而使(shi)電(dian)(dian)(dian)路(lu)(lu)斷(duan)(duan)(duan)開；運用(yong)(yong)(yong)這種(zhong)原理制(zhi)成的(de)一(yi)(yi)種(zhong)電(dian)(dian)(dian)流(liu)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)應(ying)用(yong)(yong)(yong)于(yu)(yu)高(gao)低壓(ya)配電(dian)(dian)(dian)系(xi)(xi)統和(he)控(kong)制(zhi)系(xi)(xi)統以(yi)及用(yong)(yong)(yong)電(dian)(dian)(dian)設備(bei)(bei)(bei)中，作(zuo)(zuo)為短(duan)(duan)路(lu)(lu)和(he)過(guo)(guo)電(dian)(dian)(dian)流(liu)的(de)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)，是應(ying)用(yong)(yong)(yong)普遍的(de)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)件之一(yi)(yi)。中文名熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)外文名Fuse性質過(guo)(guo)電(dian)(dian)(dian)流(liu)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)組(zu)成熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)和(he)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)管目錄(lu)1工(gong)作(zuo)(zuo)原理2常(chang)(chang)見種(zhong)類3結構特性4主(zhu)要分類5級(ji)間配合(he)6使(shi)用(yong)(yong)(yong)維護(hu)7注(zhu)意(yi)事項8主(zhu)要區別熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)工(gong)作(zuo)(zuo)原理編輯(ji)利用(yong)(yong)(yong)金(jin)屬(shu)導體(ti)(ti)(ti)作(zuo)(zuo)為熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)串聯(lian)于(yu)(yu)電(dian)(dian)(dian)路(lu)(lu)中，當過(guo)(guo)載(zai)或(huo)短(duan)(duan)路(lu)(lu)電(dian)(dian)(dian)流(liu)通熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)（圖2）過(guo)(guo)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)時，因其自身發(fa)熱而熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)，從而分斷(duan)(duan)(duan)電(dian)(dian)(dian)路(lu)(lu)的(de)一(yi)(yi)種(zhong)電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)結構簡單，使(shi)用(yong)(yong)(yong)方便，用(yong)(yong)(yong)于(yu)(yu)電(dian)(dian)(dian)力系(xi)(xi)統、各種(zhong)電(dian)(dian)(dian)工(gong)設備(bei)(bei)(bei)和(he)家用(yong)(yong)(yong)電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)中作(zuo)(zuo)為保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)件。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)常(chang)(chang)見種(zhong)類編輯(ji)插入式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)：它常(chang)(chang)用(yong)(yong)(yong)于(yu)(yu)380V及以(yi)下(xia)電(dian)(dian)(dian)壓(ya)等(deng)(deng)級(ji)的(de)線(xian)路(lu)(lu)末端，作(zuo)(zuo)為配電(dian)(dian)(dian)支(zhi)線(xian)或(huo)電(dian)(dian)(dian)氣設備(bei)(bei)(bei)的(de)短(duan)(duan)路(lu)(lu)保(bao)護(hu)用(yong)(yong)(yong)。螺旋式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)：熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)上的(de)上端蓋有(you)一(yi)(yi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)指示(shi)器(qi)(qi)(qi)(qi)(qi)，一(yi)(yi)旦熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)，指示(shi)器(qi)(qi)(qi)(qi)(qi)馬上彈出，可透過(guo)(guo)瓷帽上的(de)玻(bo)璃孔觀察到，它常(chang)(chang)用(yong)(yong)(yong)于(yu)(yu)機床電(dian)(dian)(dian)氣控(kong)制(zhi)設備(bei)(bei)(bei)中。螺旋式(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)。分斷(duan)(duan)(duan)電(dian)(dian)(dian)流(liu)較大，可用(yong)(yong)(yong)于(yu)(yu)電(dian)(dian)(dian)壓(ya)等(deng)(deng)級(ji)500V及其以(yi)下(xia)、電(dian)(dian)(dian)流(liu)等(deng)(deng)級(ji)200A以(yi)下(xia)的(de)電(dian)(dian)(dian)路(lu)(lu)中，作(zuo)(zuo)短(duan)(duan)路(lu)(lu)保(bao)護(hu)。再向遠程控(kong)制(zhi)、智能方向發(fa)展。熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)內部(bu)熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)體(ti)(ti)(ti)損(sun)壞后，需要進行(xing)更換。山(shan)東(dong)進口(kou)美爾森羅蘭熔(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)供應(ying)

熔斷器主要由(you)熔體、安裝熔體的熔管和(he)熔座三部分(fen)組(zu)成。山東進口美(mei)爾森(sen)羅蘭(lan)熔斷器供應

2）熔(rong)(rong)(rong)體(ti)(ti)(ti)與(yu)熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)確(que)定(ding)(ding)(ding)(ding)熔(rong)(rong)(rong)體(ti)(ti)(ti)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)小與(yu)負(fu)(fu)載(zai)(zai)(zai)大(da)小、負(fu)(fu)載(zai)(zai)(zai)性(xing)(xing)質有關。對(dui)于(yu)(yu)負(fu)(fu)載(zai)(zai)(zai)平穩、無沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)流(liu)，如一般照明電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)、電(dian)(dian)(dian)(dian)(dian)熱電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)可(ke)按負(fu)(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)小來確(que)定(ding)(ding)(ding)(ding)熔(rong)(rong)(rong)體(ti)(ti)(ti)的(de)(de)(de)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)。對(dui)于(yu)(yu)有沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)負(fu)(fu)載(zai)(zai)(zai)，為(wei)達到短路(lu)(lu)(lu)保(bao)(bao)護(hu)目的(de)(de)(de)，又保(bao)(bao)證電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)正常(chang)起(qi)(qi)動(dong)(dong)(dong)(dong)，對(dui)籠型感應電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)其(qi)熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)熔(rong)(rong)(rong)體(ti)(ti)(ti)的(de)(de)(de)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)：單臺(tai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)INP=（~）INM（1-6）式中，INP為(wei)熔(rong)(rong)(rong)體(ti)(ti)(ti)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)（A）；INM為(wei)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)（A）。多臺(tai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)共用一個熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)保(bao)(bao)護(hu)INP=（~）INMmax+∑INM（1-7）式中，INMmax為(wei)容量一臺(tai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)（A）；∑INM為(wei)其(qi)余各臺(tai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)之和（A）。在式（1-6）與(yu)式（1-7）中，對(dui)于(yu)(yu)輕載(zai)(zai)(zai)起(qi)(qi)動(dong)(dong)(dong)(dong)及(ji)起(qi)(qi)動(dong)(dong)(dong)(dong)時(shi)間(jian)較短時(shi)，式中系(xi)數(shu)取(qu)；重載(zai)(zai)(zai)起(qi)(qi)動(dong)(dong)(dong)(dong)及(ji)起(qi)(qi)動(dong)(dong)(dong)(dong)時(shi)間(jian)較長時(shi)，式中系(xi)數(shu)取(qu)。熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)的(de)(de)(de)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)于(yu)(yu)或等于(yu)(yu)熔(rong)(rong)(rong)體(ti)(ti)(ti)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)。3)校(xiao)核熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)的(de)(de)(de)保(bao)(bao)護(hu)特性(xing)(xing)對(dui)上述(shu)選定(ding)(ding)(ding)(ding)的(de)(de)(de)熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)類型及(ji)熔(rong)(rong)(rong)體(ti)(ti)(ti)額(e)(e)(e)(e)定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)，還須校(xiao)核該熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)的(de)(de)(de)保(bao)(bao)護(hu)特性(xing)(xing)曲線是否(fou)與(yu)保(bao)(bao)護(hu)對(dui)象的(de)(de)(de)過載(zai)(zai)(zai)特性(xing)(xing)有良好的(de)(de)(de)配(pei)合(he)，使在整個范圍內獲得(de)可(ke)靠的(de)(de)(de)保(bao)(bao)護(hu)。同時(shi)，熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)的(de)(de)(de)極限分(fen)斷(duan)能力應大(da)于(yu)(yu)或等于(yu)(yu)所保(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)可(ke)能出現的(de)(de)(de)短路(lu)(lu)(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)值，這樣才能得(de)到可(ke)靠的(de)(de)(de)短路(lu)(lu)(lu)保(bao)(bao)護(hu)。4)熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)上、下級(ji)的(de)(de)(de)配(pei)合(he)為(wei)滿足選擇性(xing)(xing)保(bao)(bao)護(hu)的(de)(de)(de)要(yao)求，應注意(yi)熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)上下級(ji)之間(jian)的(de)(de)(de)配(pei)合(he)。山(shan)東進口美爾森羅蘭(lan)熔(rong)(rong)(rong)斷(duan)器(qi)(qi)(qi)供應

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