Hi，大家好，眾所周知創聯匯通是一家經營多年的專業變壓器電力公司，對于干式變壓器、油浸式變壓器、地埋式變壓器、箱式變壓器等有這豐富的制造經驗和完善的服務解決方案。那么今天創聯匯通繼續為大家分享變壓器行業知識。 干式變壓器外部故障分析

　　低壓線發生故障了。配電干式變壓器的低壓布線的故障主要表示低壓線的導線燒毀了。主要是由于干式變壓器的低壓部分的導線和結線柱的接觸不良，絕緣油的局部的發熱現象和氧化。為了不容易發現這樣的現象，線路部分慢慢產生大量的熱量，火災到導線壞掉了為止跳躍。套筒閃光。經常發生這樣的故障。干式變壓器的(de)(de)(de)(de)故(gu)障也很常(chang)見。這種現(xian)象(xiang)的(de)(de)(de)(de)原因(yin)(yin)是(shi)，干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)串珠(zhu)的(de)(de)(de)(de)老(lao)化(hua)等，由于(yu)干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)內的(de)(de)(de)(de)油(you)脂(zhi)的(de)(de)(de)(de)泄漏油(you)附著(zhu)在干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)上，并(bing)且(qie)空氣(qi)中的(de)(de)(de)(de)導(dao)電(dian)性介質吸附在干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)的(de)(de)(de)(de)表面，雨霧天環境(jing)干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)的(de)(de)(de)(de)高(gao)壓(ya)側的(de)(de)(de)(de)閃絡引(yin)起(qi)(qi)單相接地，電(dian)源短(duan)(duan)路(lu)容易引(yin)起(qi)(qi)…。另外，由于(yu)干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)保護箱(xiang)的(de)(de)(de)(de)保護不(bu)夠充分(fen)，掉落的(de)(de)(de)(de)支(zhi)線(xian)也會(hui)引(yin)起(qi)(qi)導(dao)線(xian)之間的(de)(de)(de)(de)短(duan)(duan)路(lu)和套筒的(de)(de)(de)(de)損(sun)傷。另外，干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)有(you)時會(hui)因(yin)(yin)為意想不(bu)到的(de)(de)(de)(de)沖擊而引(yin)起(qi)(qi)套筒閃光(guang)。過電(dian)壓(ya)障礙(ai)'

　　干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)各零件(jian)的(de)(de)(de)(de)(de)選擇有嚴(yan)格的(de)(de)(de)(de)(de)參(can)(can)數(shu)限制。如果干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)額定參(can)(can)數(shu)未滿足實際供電(dian)(dian)中的(de)(de)(de)(de)(de)電(dian)(dian)流參(can)(can)數(shu)，干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)將受到損傷。干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)(ya)(ya)或(huo)電(dian)(dian)流上升的(de)(de)(de)(de)(de)主要(yao)原(yuan)因是(shi)雷擊。由于(yu)雷電(dian)(dian)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)電(dian)(dian)磁變(bian)(bian)(bian)(bian)(bian)換變(bian)(bian)(bian)(bian)(bian)得(de)異常，變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)(ya)(ya)突然(ran)上升，干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)線(xian)路燒毀。線(xian)路故(gu)障了。干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)中性點(dian)接(jie)地(di)(di)(di)不(bu)良，接(jie)地(di)(di)(di)電(dian)(dian)阻(zu)增加(jia)。干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)內(nei)線(xian)瞬(shun)時電(dian)(dian)流過大(da)(da)，會(hui)引起電(dian)(dian)路過熱，嚴(yan)重(zhong)時會(hui)引起中性點(dian)接(jie)地(di)(di)(di)的(de)(de)(de)(de)(de)不(bu)穩定和偏移，引起干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)短路，嚴(yan)重(zhong)時會(hui)燒毀設(she)備，威脅員工的(de)(de)(de)(de)(de)安全。二(er)次(ci)(ci)電(dian)(dian)路短路。干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)二(er)次(ci)(ci)側電(dian)(dian)路在使(shi)用過程中有可能(neng)發(fa)生短路。二(er)次(ci)(ci)短路不(bu)僅短路電(dian)(dian)流大(da)(da)，在短路發(fa)生處也(ye)產(chan)生大(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)磁力(li)，使(shi)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)線(xian)圈(quan)變(bian)(bian)(bian)(bian)(bian)形(xing)，使(shi)之脫落，其他的(de)(de)(de)(de)(de)緊固部品失效(xiao)。嚴(yan)重(zhong)時會(hui)破壞干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)鐵心，無法修復干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)。