發布時間：2023-01-12 瀏覽次數：759次 作者：諾慶機電

       電力變壓器油由于受環境污(wu)染(ran)和(he)氧化(hua)產生(sheng)的(de)(de)樹脂(zhi)和(he)沉淀(dian)物的(de)(de)影響(xiang)從(cong)而發(fa)(fa)生(sheng)了(le)變(bian)(bian)(bian)化(hua)，或(huo)(huo)(huo)是(shi)在(zai)(zai)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)有(you)故(gu)障時，均(jun)會異(yi)致(zhi)其外狀(zhuang)發(fa)(fa)生(sheng)改(gai)變(bian)(bian)(bian)。利用油(you)(you)(you)(you)(you)的(de)(de)外狀(zhuang)對變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)油(you)(you)(you)(you)(you)及變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)運行(xing)狀(zhuang)況(kuang)做出(chu)(chu)判(pan)(pan)斷(duan)分析是(shi)一(yi)種最基(ji)本，最直觀的(de)(de)判(pan)(pan)斷(duan)方法(fa)。用玻璃杯從(cong)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)底部取樣閥中取出(chu)(chu)少量的(de)(de)油(you)(you)(you)(you)(you)樣，對著陽光仔細觀察，良好的(de)(de)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)油(you)(you)(you)(you)(you)應(ying)該(gai)是(shi)清(qing)潔而靛(dian)明的(de)(de)，不(bu)得有(you)沉淀(dian)、機械雜質(zhi)(zhi)(zhi)、懸浮物質(zhi)(zhi)(zhi)及棉絮狀(zhuang)物質(zhi)(zhi)(zhi)，顏(yan)色(se)(se)(se)應(ying)為淡(dan)黃色(se)(se)(se)。油(you)(you)(you)(you)(you)樣顏(yan)色(se)(se)(se)為棕(zong)色(se)(se)(se)或(huo)(huo)(huo)褐色(se)(se)(se)，其酸(suan)值和(he)水(shui)溶(rong)性(xing)(xing)酸(suan)往往接近或(huo)(huo)(huo)超(chao)過國(guo)際標準(zhun)注(zhu)值，但是(shi)，其色(se)(se)(se)譜分析沒有(you)一(yi)定的(de)(de)規律性(xing)(xing)。一(yi)般情(qing)況(kuang)下(xia)(xia)(xia)，對于顏(yan)色(se)(se)(se)較深的(de)(de)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)油(you)(you)(you)(you)(you)，應(ying)加強化(hua)學監督試驗(yan)，縮短實現周期，或(huo)(huo)(huo)者可(ke)以(yi)說，就不(bu)適宜再用了(le)。應(ying)對變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)油(you)(you)(you)(you)(you)進(jin)行(xing)再生(sheng)處理(li)，以(yi)防止事(shi)故(gu)的(de)(de)發(fa)(fa)生(sheng)。油(you)(you)(you)(you)(you)樣油(you)(you)(you)(you)(you)色(se)(se)(se)發(fa)(fa)暗，其簡化(hua)分析中，酸(suan)值和(he)水(shui)溶(rong)性(xing)(xing)酸(suan)均(jun)嚴重超(chao)標。一(yi)般情(qing)況(kuang)下(xia)(xia)(xia)，油(you)(you)(you)(you)(you)色(se)(se)(se)發(fa)(fa)暗，則可(ke)能(neng)為油(you)(you)(you)(you)(you)的(de)(de)老(lao)化(hua)現象(xiang)，變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)內部無故(gu)障。油(you)(you)(you)(you)(you)樣油(you)(you)(you)(you)(you)色(se)(se)(se)發(fa)(fa)黑，一(yi)般情(qing)況(kuang)下(xia)(xia)(xia)，油(you)(you)(you)(you)(you)色(se)(se)(se)發(fa)(fa)黑可(ke)判(pan)(pan)斷(duan)為變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)內部可(ke)能(neng)存在(zai)(zai)放(fang)(fang)電(dian)(dian)現象(xiang)叵是(shi)放(fang)(fang)電(dian)(dian)兼過勢現象(xiang)，變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)油(you)(you)(you)(you)(you)因變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)固體介質(zhi)(zhi)(zhi)的(de)(de)炭(tan)化(hua)而變(bian)(bian)(bian)黑，放(fang)(fang)電(dian)(dian)嚴重時會造成設備燒毀，甚(shen)(shen)至(zhi)發(fa)(fa)生(sheng)爆(bao)炸事(shi)故(gu)。閃電(dian)(dian)過低(di)也會異(yi)致(zhi)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)發(fa)(fa)生(sheng)火(huo)災，甚(shen)(shen)至(zhi)爆(bao)炸。