35KV戶外防風型高壓熔斷器HGRW1-35跌落保險

35KV戶(hu)外防風型高壓(ya)熔斷器(qi) HGRW1-35防風型是(shi)戶外高壓保(bao)(bao)護(hu)電(dian)器。它(ta)裝置在配電(dian)變壓器高壓側或配電(dian)線支干線路(lu)上，用(yong)作(zuo)變壓器和(he)(he)線路(lu)的短路(lu)、過載保(bao)(bao)護(hu)及分(fen)、合負荷電(dian)流。跌(die)落式熔(rong)斷器由絕緣(yuan)支架和(he)(he)熔(rong)絲管(guan)(guan)二(er)部分(fen)組成(cheng)，靜(jing)觸(chu)頭(tou)安裝在絕緣(yuan)支架兩端，動觸(chu)頭(tou)安裝在熔(rong)絲管(guan)(guan)兩端絲管(guan)(guan)由層(ceng)的消弧管(guan)(guan)和(he)(he)外層(ceng)的環氧玻璃管(guan)(guan)組成(cheng)。拉負荷跌(die)落式熔(rong)斷器增(zeng)加彈性輔(fu)助觸(chu)頭(tou)及滅弧罩，用(yong)以(yi)分(fen)、合負荷電(dian)流。

35KV戶外防(fang)(fang)風型高壓熔(rong)斷器 HGRW1-35防(fang)(fang)風型

戶外跌(die)(die)落(luo)(luo)(luo)式(shi)(shi)熔(rong)(rong)斷(duan)器(qi)適(shi)用(yong)于交流50HZ，額(e)定電(dian)(dian)壓(ya)10kV~35KV的(de)電(dian)(dian)力系統(tong)中，作輸配電(dian)(dian)線(xian)路和電(dian)(dian)力變壓(ya)器(qi)的(de)過(guo)載和短路保(bao)護以及(ji)分、合額(e)定負(fu)荷電(dian)(dian)流之用(yong)廣(guang)泛使(shi)(shi)用(yong)的(de)戶外跌(die)(die)落(luo)(luo)(luo)式(shi)(shi)熔(rong)(rong)斷(duan)器(qi)的(de)型號有RW7型和RW11型兩種。在現實的(de)10kV~35KV線(xian)路系統(tong)中和配電(dian)(dian)變壓(ya)器(qi)上的(de)熔(rong)(rong)斷(duan)器(qi)不能(neng)(neng)正確(que)動作，其原(yuan)(yuan)因之一(yi)是，電(dian)(dian)工素質差，責任(ren)心(xin)不強，常年(nian)不進行跌(die)(die)落(luo)(luo)(luo)式(shi)(shi)熔(rong)(rong)斷(duan)器(qi)的(de)維(wei)護和檢修；原(yuan)(yuan)因之二是，跌(die)(die)落(luo)(luo)(luo)式(shi)(shi)熔(rong)(rong)斷(duan)器(qi)的(de)產品質量低(di)劣(lie)，不能(neng)(neng)靈活的(de)拉、合操作。兩原(yuan)(yuan)因降低(di)了跌(die)(die)落(luo)(luo)(luo)式(shi)(shi)熔(rong)(rong)斷(duan)器(qi)的(de)功(gong)能(neng)(neng)。現實中經常出(chu)現缺(que)熔(rong)(rong)管、缺(que)熔(rong)(rong)體(ti)或用(yong)銅絲(si)、鋁絲(si)甚(shen)至于鐵絲(si)勾掛代替熔(rong)(rong)體(ti)的(de)情況。使(shi)(shi)得線(xian)路的(de)跳閘(zha)率(lv)和配電(dian)(dian)變壓(ya)器(qi)的(de)故障率(lv)居高不下。

10kV~35KV跌落式熔(rong)(rong)(rong)斷(duan)(duan)器(qi)適(shi)用于環境空氣無(wu)導電(dian)(dian)(dian)(dian)粉塵(chen)、無(wu)腐蝕性(xing)氣體(ti)及易燃、易爆(bao)等危險性(xing)環境，年度溫差變(bian)比在(zai)±40℃以(yi)(yi)內(nei)的(de)(de)(de)(de)(de)(de)(de)戶外場(chang)所。其(qi)選(xuan)擇是(shi)按(an)照額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)壓和(he)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)流兩項(xiang)參數進行，也就是(shi)熔(rong)(rong)(rong)斷(duan)(duan)器(qi)的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)壓必須(xu)與(yu)被(bei)(bei)保(bao)護(hu)(hu)設備(線(xian)路(lu)(lu))的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)壓相匹配。熔(rong)(rong)(rong)斷(duan)(duan)器(qi)具的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)流應(ying)大于或等于熔(rong)(rong)(rong)體(ti)的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)流。而熔(rong)(rong)(rong)體(ti)的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)電(dian)(dian)(dian)(dian)流可選(xuan)為額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)負荷電(dian)(dian)(dian)(dian)流的(de)(de)(de)(de)(de)(de)(de)1.5～2倍(bei)。此(ci)外，應(ying)按(an)被(bei)(bei)保(bao)護(hu)(hu)系(xi)統三(san)(san)相短(duan)路(lu)(lu)容(rong)量(liang)(liang)，對所選(xuan)定(ding)(ding)(ding)(ding)(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)斷(duan)(duan)器(qi)進行校核。保(bao)證被(bei)(bei)保(bao)護(hu)(hu)系(xi)統三(san)(san)相短(duan)路(lu)(lu)容(rong)量(liang)(liang)小(xiao)于熔(rong)(rong)(rong)斷(duan)(duan)器(qi)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)斷(duan)(duan)開(kai)容(rong)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)上限(xian)(xian)(xian)(xian)，但必須(xu)大于額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)斷(duan)(duan)開(kai)容(rong)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)下(xia)(xia)限(xian)(xian)(xian)(xian)。若(ruo)熔(rong)(rong)(rong)斷(duan)(duan)器(qi)的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)斷(duan)(duan)開(kai)容(rong)量(liang)(liang)(一(yi)般是(shi)指(zhi)其(qi)上限(xian)(xian)(xian)(xian))過大，很可能使(shi)被(bei)(bei)保(bao)護(hu)(hu)系(xi)統三(san)(san)相短(duan)路(lu)(lu)容(rong)量(liang)(liang)小(xiao)于熔(rong)(rong)(rong)斷(duan)(duan)器(qi)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)斷(duan)(duan)開(kai)容(rong)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)下(xia)(xia)限(xian)(xian)(xian)(xian)，造成在(zai)熔(rong)(rong)(rong)體(ti)熔(rong)(rong)(rong)斷(duan)(duan)時難以(yi)(yi)滅弧，***終引起熔(rong)(rong)(rong)管燒毀，**等事故(gu)。一(yi)些(xie)供電(dian)(dian)(dian)(dian)單位仍處于農網改(gai)造高峰(feng)，在(zai)選(xuan)用該類熔(rong)(rong)(rong)斷(duan)(duan)器(qi)時，必須(xu)嚴(yan)把產品質量(liang)(liang)關，保(bao)護(hu)(hu)合格的(de)(de)(de)(de)(de)(de)(de)設備入網，同時要注意到它(ta)的(de)(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)(ding)(ding)(ding)(ding)(ding)斷(duan)(duan)開(kai)容(rong)量(liang)(liang)上限(xian)(xian)(xian)(xian)值(zhi)和(he)下(xia)(xia)限(xian)(xian)(xian)(xian)值(zhi)

35KV戶外防風型高壓熔斷器在正常運行時，熔絲管借助熔絲張緊后形成閉合位置。當系統發生故障時，故障電流使熔絲迅速熔斷，并形成電弧，消弧管受電弧灼熱，分解出大量的氣體，使管內形成很高壓力，并沿管道形成縱吹，電弧被迅速拉長而熄滅。熔絲熔斷后，下部動觸頭失去拉力而下翻，鎖緊機構釋放熔絲管，熔絲管跌落，形成明顯的開斷位置。當需要拉負荷時，用絕緣桿拉開動觸頭，此時主動、靜助觸頭仍然接觸，繼續用絕緣桿拉動觸頭，輔助觸頭也分離，在輔助觸頭之間產生電弧，電弧在滅弧罩狹縫中被拉長，同時滅弧罩產生氣體，在電流過零時，將電弧熄滅。

跌落式熔(rong)斷器(qi)安(an)裝在(zai)10kV~35KV配(pei)電(dian)(dian)線(xian)路分(fen)支線(xian)上，可(ke)縮小停(ting)電(dian)(dian)范(fan)圍，因(yin)其有一(yi)明(ming)顯的斷開(kai)點，具(ju)備了(le)隔離開(kai)關的功能，給檢(jian)(jian)修(xiu)段(duan)線(xian)路和設備創造了(le)一(yi)個安(an)全(quan)作(zuo)業環境，增加了(le)檢(jian)(jian)修(xiu)人員的安(an)全(quan)感。安(an)裝在(zai)配(pei)電(dian)(dian)變(bian)壓(ya)器(qi)上，可(ke)以(yi)作(zuo)為配(pei)電(dian)(dian)變(bian)壓(ya)器(qi)的主保護(hu)，所以(yi)，在(zai)10kV~35KV配(pei)電(dian)(dian)線(xian)路和配(pei)電(dian)(dian)變(bian)壓(ya)器(qi)中得到了(le)普及。

35KV戶外防風型高壓熔斷器HGRW1-35跌落保險