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【熔斷器】PRW12-10/100A <鶴壁>羿振電氣有限公司

跌落式熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)的(de)(de)運行(xing)維護管理(li)(1)為(wei)使熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)能更可靠、的(de)(de)運行(xing)，除(chu)按(an)規(gui)程要求嚴格(ge)地選擇正規(gui)廠(chang)家生產(chan)的(de)(de)合(he)格(ge)產(chan)品及配件(jian)(包括熔(rong)(rong)件(jian)等)外，在運行(xing)維護管理(li)中應特(te)別注意以下(xia)事項：①熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)具額定電(dian)(dian)流與熔(rong)(rong)體及負荷電(dian)(dian)流值是(shi)否匹配合(he)適，若配合(he)不(bu)當(dang)必須(xu)(xu)進行(xing)調整。 合(he)閘時未能到位或未合(he)牢靠，熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)上靜觸(chu)頭壓力不(bu)足，極(ji)易造成(cheng)觸(chu)頭燒傷或者熔(rong)(rong)管自行(xing)跌落。②熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)的(de)(de)每次操作須(xu)(xu)仔細認真(zhen)，不(bu)可粗(cu)心大意，特(te)別是(shi)合(he)閘操作，必須(xu)(xu)使動、靜觸(chu)頭接觸(chu)良好。

熔(rong)(rong)絲熔(rong)(rong)斷(duan)(duan)后，下部(bu)動(dong)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)失(shi)去拉(la)力(li)而下翻，鎖緊(jin)機構釋放熔(rong)(rong)絲管，熔(rong)(rong)絲管跌落(luo)，形成(cheng)明顯的開斷(duan)(duan)位置。當需(xu)要拉(la)負荷時(shi)(shi)，用(yong)(yong)絕緣桿拉(la)開動(dong)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)，此時(shi)(shi)主動(dong)、靜(jing)助(zhu)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)仍然接觸(chu)(chu)(chu)(chu)(chu)，繼續(xu)用(yong)(yong)絕緣桿拉(la)動(dong)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)，輔助(zhu)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)也分離，在(zai)輔助(zhu)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)之間產生電(dian)(dian)弧(hu)，電(dian)(dian)弧(hu)在(zai)滅弧(hu)罩狹縫中被拉(la)長(chang)，同時(shi)(shi)滅弧(hu)罩產生氣體，在(zai)電(dian)(dian)流過零時(shi)(shi)，將電(dian)(dian)弧(hu)熄滅。 跌落(luo)原理(li)：熔(rong)(rong)斷(duan)(duan)器靠安(an)裝板固(gu)定在(zai)安(an)裝架上，熔(rong)(rong)斷(duan)(duan)器在(zai)運行時(shi)(shi)串聯在(zai)電(dian)(dian)力(li)線(xian)路(lu)中，正常工作時(shi)(shi)，熔(rong)(rong)絲尾線(xian)使(shi)熔(rong)(rong)絲管和動(dong)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)間的活動(dong)關節緊(jin)鎖，熔(rong)(rong)絲管能在(zai)靜(jing)觸(chu)(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)的壓力(li)下處(chu)于(yu)臺閘位置。