電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)啟動(dong)(dong)時(shi)會產(chan)生(sheng) 3-7 倍額定(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)啟動(dong)(dong)沖(chong)(chong)擊，若(ruo)保(bao)(bao)護(hu)(hu)元件特(te)(te)性(xing)不(bu)當(dang)，易誤(wu)動(dong)(dong)作；而運(yun)行(xing)中若(ruo)出(chu)現(xian)過(guo)載或短(duan)路(lu)，又需快(kuai)速響應保(bao)(bao)護(hu)(hu)。ABB 熔(rong)斷器(qi)針對電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)保(bao)(bao)護(hu)(hu)需求(qiu)，采用 “抗沖(chong)(chong)擊 + 快(kuai)保(bao)(bao)護(hu)(hu)” 的(de)(de)(de)(de)雙重特(te)(te)性(xing)設計：熔(rong)體選用高(gao)導電(dian)(dian)(dian)(dian)(dian)率的(de)(de)(de)(de)銀合(he)金(jin)材料，通過(guo)特(te)(te)殊的(de)(de)(de)(de)變(bian)截面結構(gou)，既能承受(shou)啟動(dong)(dong)時(shi)的(de)(de)(de)(de)瞬時(shi)大電(dian)(dian)(dian)(dian)(dian)流(liu)沖(chong)(chong)擊而不(bu)熔(rong)斷，又能在電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)運(yun)行(xing)出(chu)現(xian)短(duan)路(lu)或持(chi)續(xu)過(guo)載時(shi)，迅速切斷故障回路(lu)。在汽(qi)車制造車間(jian)的(de)(de)(de)(de)焊接(jie)機(ji)(ji)(ji)器(qi)人(ren)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)回路(lu)中，ABB OSM 系列(lie)熔(rong)斷器(qi)可(ke)(ke)完美(mei)適配電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)頻繁啟停(ting)的(de)(de)(de)(de)工(gong)況：啟動(dong)(dong)時(shi)耐(nai)受(shou)瞬時(shi)沖(chong)(chong)擊電(dian)(dian)(dian)(dian)(dian)流(liu)，確(que)保(bao)(bao)機(ji)(ji)(ji)器(qi)人(ren)正常啟動(dong)(dong)；當(dang)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)因負載卡滯出(chu)現(xian)過(guo)載時(shi)，按預設時(shi)間(jian)熔(rong)斷，避免電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)繞組燒毀。這種(zhong)精確(que)適配性(xing)，大幅提升了電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)設備(bei)的(de)(de)(de)(de)運(yun)行(xing)可(ke)(ke)靠性(xing)，降低(di)生(sheng)產(chan)線停(ting)機(ji)(ji)(ji)維護(hu)(hu)頻率。

ABB 熔斷(duan)器的(de)(de)**技術優勢之一是(shi) “選擇(ze)性(xing)保(bao)護” 設計(ji)，通過(guo)精(jing)確(que)(que)匹配不同層(ceng)級電(dian)(dian)(dian)路(lu)的(de)(de)保(bao)護特(te)性(xing)，實現故障區域的(de)(de)精(jing)確(que)(que)隔離。例如，在低(di)壓配電(dian)(dian)(dian)系統中，前端(duan)主回路(lu)熔斷(duan)器與后(hou)端(duan)分支回路(lu)熔斷(duan)器的(de)(de)時間 - 電(dian)(dian)(dian)流曲線存在明確(que)(que)級差，當(dang)分支回路(lu)發生短路(lu)時，后(hou)端(duan)熔斷(duan)器會在毫秒級時間內熔斷(duan)，而前端(duan)主回路(lu)熔斷(duan)器保(bao)持完好，避(bi)免整個配電(dian)(dian)(dian)系統斷(duan)電(dian)(dian)(dian)。這種技術**提升了(le)工業生產的(de)(de)連續性(xing)，尤其(qi)適用于自(zi)動化生產線、數據中心等(deng)對供電(dian)(dian)(dian)可靠性(xing)要求極高的(de)(de)場(chang)景，減少因局部故障導致(zhi)的(de)(de)整體停產損(sun)失。