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羿振電氣有限公司

云南 高壓熔斷器PRW12-10F/100A

　　由于(yu)采用(yong)逐(zhu)級排氣，熔(rong)(rong)管內加裝(zhuang)(zhuang)新型滅弧材料(liao)小(xiao)(xiao)(xiao)管，合理解(jie)決了開(kai)斷大小(xiao)(xiao)(xiao)電(dian)(dian)(dian)流的(de)矛盾、擴(kuo)大了下限(xian)開(kai)斷電(dian)(dian)(dian)流范(fan)圍(wei)。瓷件與(yu)上、下靜觸頭、安(an)裝(zhuang)(zhuang)板均采用(yong)機械卡裝(zhuang)(zhuang)，與(yu)水泥澆裝(zhuang)(zhuang)比較，具有(you)更高(gao)的(de)機要強(qiang)度，不會(hui)發(fa)生瓷件膠裝(zhuang)(zhuang)處(chu)斷裂及(ji)松動現象。 　　概述：跌落式(shi)(shi)熔(rong)(rong)斷器(qi)是(shi)配(pei)(pei)(pei)電(dian)(dian)(dian)線(xian)(xian)路(lu)(lu)(lu)分支(zhi)(zhi)線(xian)(xian)和(he)(he)配(pei)(pei)(pei)電(dian)(dian)(dian)變(bian)(bian)壓器(qi)常(chang)見(jian)的(de)一種短路(lu)(lu)(lu)保(bao)護(hu)開(kai)關。它具有(you)經濟、操作方便、適應(ying)戶外環境(jing)性(xing)(xing)強(qiang)等特點，被廣(guang)泛應(ying)用(yong)于(yu)配(pei)(pei)(pei)電(dian)(dian)(dian)線(xian)(xian)路(lu)(lu)(lu)和(he)(he)配(pei)(pei)(pei)電(dian)(dian)(dian)變(bian)(bian)壓器(qi)一次側作為保(bao)護(hu)和(he)(he)進行設(she)備(bei)投(tou)、切操作之用(yong)。安(an)裝(zhuang)(zhuang)在(zai)配(pei)(pei)(pei)電(dian)(dian)(dian)線(xian)(xian)路(lu)(lu)(lu)分支(zhi)(zhi)上，可縮小(xiao)(xiao)(xiao)停電(dian)(dian)(dian)范(fan)圍(wei)。 　　因其有(you)一個(ge)明顯的(de)斷開(kai)點，具有(you)了隔離開(kai)關的(de)功能，給檢修線(xian)(xian)路(lu)(lu)(lu)和(he)(he)設(she)備(bei)創造了一個(ge)作業環境(jing)，增(zeng)加了檢修人員的(de)性(xing)(xing)。帶(dai)拉負荷(he)的(de)跌落式(shi)(shi)熔(rong)(rong)斷器(qi)，還配(pei)(pei)(pei)有(you)彈性(xing)(xing)輔助(zhu)觸頭和(he)(he)滅弧罩，用(yong)以分合額(e)定負荷(he)電(dian)(dian)(dian)流。用(yong)途及(ji)執行標準(zhun)：本(ben)產品使用(yong)于(yu)10～35kV配(pei)(pei)(pei)電(dian)(dian)(dian)線(xian)(xian)路(lu)(lu)(lu)分支(zhi)(zhi)線(xian)(xian)和(he)(he)配(pei)(pei)(pei)電(dian)(dian)(dian)變(bian)(bian)壓器(qi)一次側，用(yong)于(yu)過載(zai)和(he)(he)短路(lu)(lu)(lu)保(bao)護(hu)，分合額(e)定負荷(he)電(dian)(dian)(dian)流。

　　熔(rong)(rong)(rong)絲(si)熔(rong)(rong)(rong)斷(duan)(duan)后，下(xia)部(bu)動(dong)觸(chu)(chu)(chu)頭(tou)失(shi)去(qu)拉(la)(la)(la)(la)力(li)而下(xia)翻，鎖緊機構釋放熔(rong)(rong)(rong)絲(si)管(guan)(guan)，熔(rong)(rong)(rong)絲(si)管(guan)(guan)跌落，形(xing)成明顯的(de)(de)開斷(duan)(duan)位置。當需要(yao)拉(la)(la)(la)(la)負荷時(shi)，用(yong)絕(jue)緣桿(gan)拉(la)(la)(la)(la)開動(dong)觸(chu)(chu)(chu)頭(tou)，此時(shi)主動(dong)、靜助觸(chu)(chu)(chu)頭(tou)仍然(ran)接觸(chu)(chu)(chu)，繼(ji)續用(yong)絕(jue)緣桿(gan)拉(la)(la)(la)(la)動(dong)觸(chu)(chu)(chu)頭(tou)，輔助觸(chu)(chu)(chu)頭(tou)也分離，在(zai)(zai)輔助觸(chu)(chu)(chu)頭(tou)之(zhi)間(jian)產生(sheng)電(dian)弧(hu)，電(dian)弧(hu)在(zai)(zai)滅(mie)弧(hu)罩狹縫中被(bei)拉(la)(la)(la)(la)長，同(tong)時(shi)滅(mie)弧(hu)罩產生(sheng)氣體(ti)，在(zai)(zai)電(dian)流過(guo)零時(shi)，將電(dian)弧(hu)熄(xi)滅(mie)。 　　當電(dian)力(li)系統發生(sheng)故(gu)障時(shi)，故(gu)障電(dian)流使熔(rong)(rong)(rong)絲(si)迅速熔(rong)(rong)(rong)斷(duan)(duan)，在(zai)(zai)熔(rong)(rong)(rong)絲(si)管(guan)(guan)內(nei)產生(sheng)電(dian)弧(hu)，熔(rong)(rong)(rong)絲(si)管(guan)(guan)內(nei)襯的(de)(de)鋼紙(zhi)管(guan)(guan)和(he)套在(zai)(zai)熔(rong)(rong)(rong)管(guan)(guan)上的(de)(de)內(nei)消弧(hu)管(guan)(guan)在(zai)(zai)電(dian)弧(hu)作用(yong)下(xia)產生(sheng)大量氣體(ti)，使熔(rong)(rong)(rong)絲(si)管(guan)(guan)內(nei)形(xing)成足夠壓(ya)力(li)，并(bing)沿熔(rong)(rong)(rong)絲(si)管(guan)(guan)道形(xing)成強烈(lie)縱吹，使電(dian)弧(hu)迅速拉(la)(la)(la)(la)長，在(zai)(zai)電(dian)流過(guo)零時(shi)，由于(yu)強烈(lie)去(qu)游離作用(yong)而熄(xi)滅(mie)。 　　跌落原理：熔(rong)(rong)(rong)斷(duan)(duan)器靠安(an)(an)裝(zhuang)板固定在(zai)(zai)安(an)(an)裝(zhuang)架上，熔(rong)(rong)(rong)斷(duan)(duan)器在(zai)(zai)運行時(shi)串聯在(zai)(zai)電(dian)力(li)線路中，正常工(gong)作時(shi)，熔(rong)(rong)(rong)絲(si)尾線使熔(rong)(rong)(rong)絲(si)管(guan)(guan)和(he)動(dong)觸(chu)(chu)(chu)頭(tou)間(jian)的(de)(de)活(huo)動(dong)關(guan)節(jie)緊鎖，熔(rong)(rong)(rong)絲(si)管(guan)(guan)能(neng)在(zai)(zai)靜觸(chu)(chu)(chu)頭(tou)的(de)(de)壓(ya)力(li)下(xia)處于(yu)臺閘(zha)位置。熔(rong)(rong)(rong)絲(si)熔(rong)(rong)(rong)斷(duan)(duan)后，失(shi)去(qu)熔(rong)(rong)(rong)絲(si)的(de)(de)張緊力(li)，活(huo)動(dong)關(guan)節(jie)釋放、熔(rong)(rong)(rong)管(guan)(guan)在(zai)(zai)上、下(xia)靜觸(chu)(chu)(chu)頭(tou)的(de)(de)彈簧壓(ya)力(li)和(he)熔(rong)(rong)(rong)絲(si)管(guan)(guan)自身重量的(de)(de)作用(yong)下(xia)，迅速跌落，形(xing)成明顯可見的(de)(de)隔離間(jian)隙。