高壓(ya)試(shi)(shi)驗是(shi)確(que)保電(dian)(dian)力變壓(ya)器(qi)安(an)全運(yun)行(xing)(xing)(xing)的(de)必要(yao)(yao)措(cuo)施(shi)，當電(dian)(dian)力變壓(ya)器(qi)進(jin)行(xing)(xing)(xing)高壓(ya)試(shi)(shi)驗過(guo)程(cheng)中必須對(dui)環(huan)境因素進(jin)行(xing)(xing)(xing)控制，避(bi)免環(huan)境因素對(dui)電(dian)(dian)力變壓(ya)器(qi)高壓(ya)試(shi)(shi)驗結果產生影響，操作人員要(yao)(yao)按照相關標準規定來進(jin)行(xing)(xing)(xing)變壓(ya)器(qi)試(shi)(shi)驗操作，確(que)保每一個高壓(ya)試(shi)(shi)驗環(huan)節的(de)安(an)全性(xing)、完整性(xing)，這樣才能使(shi)電(dian)(dian)力變壓(ya)器(qi)運(yun)行(xing)(xing)(xing)中的(de)安(an)全性(xing)、穩定性(xing)，可以在很大程(cheng)度上滿足運(yun)行(xing)(xing)(xing)的(de)各項要(yao)(yao)求。
高(gao)壓(ya)試驗變(bian)壓(ya)器在(zai)高(gao)壓(ya)試驗中(zhong)發生(sheng)繞(rao)組(zu)故障(zhang)的(de)(de)原因有很多(duo)，所以(yi)在(zai)電力(li)(li)變(bian)壓(ya)器出現繞(rao)組(zu)故障(zhang)后，要(yao)求(qiu)操作人(ren)員(yuan)要(yao)對(dui)電力(li)(li)變(bian)壓(ya)器進行(xing)仔細檢查，將發生(sheng)故障(zhang)的(de)(de)相間短路、繞(rao)組(zu)接地以(yi)及(ji)匝間短路等(deng)故障(zhang)——排除，這樣才能確保電力(li)(li)變(bian)壓(ya)器運行(xing)中(zhong)的(de)(de)安全(quan)性、穩定(ding)性，可以(yi)在(zai)很大(da)程度上滿足(zu)我國(guo)社會各領域對(dui)電力(li)(li)供應質量的(de)(de)要(yao)求(qiu)。
高壓(ya)(ya)(ya)(ya)(ya)試驗(yan)變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)在運行(xing)過程中其(qi)(qi)產生(sheng)的(de)電(dian)磁交流聲的(de)頻率(lv)相(xiang)對較為穩定(ding)，所以(yi)電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)在高壓(ya)(ya)(ya)(ya)(ya)試驗(yan)中，如(ru)果操作人員(yuan)發現內部(bu)(bu)聲音(yin)異常(chang)，則可能是(shi)電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)過載運行(xing)、內部(bu)(bu)零件松動、貼心外層硅(gui)鋼(gang)片未(wei)夾(jia)緊、頂蓋(gai)螺絲松動、內部(bu)(bu)接觸不良以(yi)及電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)短路(lu)等故(gu)障，或電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)繞組中存在較大的(de)電(dian)流等，上述多種情(qing)況都能導(dao)致電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)高壓(ya)(ya)(ya)(ya)(ya)試驗(yan)中出(chu)現內部(bu)(bu)聲音(yin)異常(chang)情(qing)況。上述故(gu)障發生(sheng)后，操作人員(yuan)可以(yi)通過電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)內部(bu)(bu)聲音(yin)判斷其(qi)(qi)是(shi)否出(chu)現故(gu)障，在判定(ding)故(gu)障發生(sheng)后操作人員(yuan)要對電(dian)力變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)上述部(bu)(bu)位進行(xing)斷電(dian)檢(jian)查，并根據故(gu)障原因來采取合(he)理的(de)措(cuo)施進行(xing)解決。
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