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變(bian)壓器(qi)智能(neng)風(feng)冷(leng)控制柜，變(bian)壓器(qi)在 運行過程中，繞組中的(de)(de)銅耗(hao)和(he)鐵(tie)芯中的(de)(de)鐵(tie)耗(hao)都轉變(bian)為熱(re)能(neng)，使(shi)變(bian)壓器(qi)各(ge)個部分的(de)(de)溫(wen)度(du)升高(gao)，變(bian)壓器(qi)的(de)(de)使(shi)用壽命主(zhu)要由絕緣老(lao)化(hua)程度(du)決定，絕緣老(lao)化(hua)主(zhu)要是由溫(wen)度(du)變(bian)化(hua) 造成的(de)(de)。

更新(xin)時(shi)間：2023-11-15 瀏(liu)覽次數：1072

變壓(ya)器中(zhong)性(xing)(xing)(xing)點(dian)(dian)接(jie)(jie)地(di)電(dian)(dian)(dian)阻(zu)柜以進口特殊不銹(xiu)(xiu)鋼合金材料(liao)，開(kai)發生(sheng)產(chan)的系列(lie)不銹(xiu)(xiu)鋼中(zhong)性(xing)(xing)(xing)接(jie)(jie)地(di)電(dian)(dian)(dian)阻(zu)柜裝(zhuang)置.用于 6～35kV系統，在電(dian)(dian)(dian)纜供電(dian)(dian)(dian)的系統中(zhong)，接(jie)(jie)地(di)電(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)較大。當(dang)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)大于規定值時，有可能產(chan)生(sheng)弧(hu)光接(jie)(jie)地(di)過(guo)電(dian)(dian)(dian)壓(ya)。中(zhong)性(xing)(xing)(xing)點(dian)(dian)采(cai)用電(dian)(dian)(dian)阻(zu)接(jie)(jie)地(di)方式(shi)的目(mu)的就是給故障(zhang)點(dian)(dian)注 入阻(zu)性(xing)(xing)(xing)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，其電(dian)(dian)(dian)阻(zu)分量(liang)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)為電(dian)(dian)(dian)容(rong)分量(liang)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的1.05~1.1倍。可以把(ba)故障(zhang)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)限制得適(shi)度(du)(du)，提高繼電(dian)(dian)(dian)保護靈敏度(du)(du)，同時使故障(zhang)點(dian)(dian)僅可能發生(sheng)局部輕微(wei)損傷， 把(ba)暫態過(guo)電(dian)(dian)(dian)壓(ya)限

更新時間(jian)：2023-11-15 瀏覽次(ci)數：972

變(bian)(bian)壓(ya)(ya)器(qi)中性(xing)(xing)點(dian)放點(dian)間隙保護(hu)裝置的運(yun)行方(fang)式(shi)不(bu)(bu)同(tong)(tong)，其技術(shu)特性(xing)(xing)和(he)工作(zuo)條(tiao)件也不(bu)(bu)同(tong)(tong)，因而對運(yun)行的可靠性(xing)(xing)、設備(bei)絕(jue)緣(yuan)及其保護(hu)措施的影響和(he)要求也不(bu)(bu)一樣。 變(bian)(bian)壓(ya)(ya)器(qi)中性(xing)(xing)點(dian)間隙接(jie)地(di)保護(hu)裝置于110KV、220KV、330KV、500KV電力變(bian)(bian)壓(ya)(ya)器(qi)中性(xing)(xing)點(dian)，以實現(xian)中性(xing)(xing)點(dian)接(jie)地(di)或不(bu)(bu)接(jie)地(di)兩(liang)種不(bu)(bu)同(tong)(tong)的運(yun)行方(fang)式(shi)而設計的，從而避免(mian)變(bian)(bian)壓(ya)(ya)器(qi)中性(xing)(xing)點(dian)因受雷電沖擊(ji)和(he)故障引起電壓(ya)(ya)升高(gao)、對變(bian)(bian)壓(ya)(ya)器(qi)絕(jue)緣(yuan)造成損害。

更新時間：2023-11-15 瀏覽次(ci)數：1431

變壓器(qi)的(de)直流(liu)(liu)電(dian)阻是(shi)變壓器(qi)制造(zao)(zao)中半成品、成品出廠(chang)試(shi)驗、安裝、交接試(shi)驗及(ji)電(dian)力部門(men)預防(fang)性試(shi)驗的(de)必測項目，能(neng)有(you)效發現變壓器(qi)線(xian)(xian)圈的(de)選材、焊接、連接部位松(song) 動(dong)、缺(que)股(gu)、斷線(xian)(xian)等(deng)(deng)制造(zao)(zao)缺(que)陷和運行后存在的(de)隱患(huan)，能(neng)有(you)效防(fang)止電(dian)力事故的(de)發生。我公司自主研制的(de)XK-BDC系列變壓器(qi)直流(liu)(liu)電(dian)阻測試(shi)儀，采用全(quan)新電(dian)源技(ji)術，具(ju) 有(you)體積小(xiao)、重量輕、輸出電(dian)流(liu)(liu)大等(deng)(deng)特點。由大功率開(kai)關電(dian)源電(dian)路、精密小(xiao)信號測量電(dian)路、保護(hu)電(dian)路、高速單片機控制電(dian)路等(deng)(deng)組(zu)

更(geng)新時(shi)間：2023-11-15 瀏覽次數：1111

發(fa)電(dian)機(ji)在運行(xing)中，發(fa)生單相接(jie)地(di)是Z常見的故障(zhang)，其危害性在于(yu)故障(zhang)點(dian)出現(xian)電(dian)弧接(jie)地(di)時會進一步擴大定子繞組絕緣損害范圍，甚至燒損鐵(tie)芯(xin)，如不及時發(fa)現(xian)并(bing)快(kuai)速(su)切 除故障(zhang)，將發(fa)展(zhan)成為相間(jian)或匝間(jian)短路。基于(yu)上述原因，廣泛(fan)采(cai)用發(fa)電(dian)機(ji)中性點(dian)高(gao)阻接(jie)地(di)，以限制接(jie)地(di)電(dian)流和(he)阻止各種過(guo)電(dian)壓的危害。

更新時間：2023-11-15 瀏覽(lan)次數：896