本文選題：油紙絕緣 + Nomex絕緣紙　； 參考：《高電壓技術(shù)》2017年09期

【摘要】：目前越來越多的電力設(shè)備開始嘗試新的絕緣介質(zhì)來替代傳統(tǒng)纖維素絕緣紙和新型絕緣油組成的絕緣結(jié)構(gòu)。Nomex絕緣紙由于具有良好的機(jī)械性能和電氣性能,在相對較高的溫度長期運(yùn)行而不影響其絕緣性能而受到關(guān)注,但是對于Nomex絕緣紙和傳統(tǒng)纖維素絕緣紙在KI50X絕緣油中的空間電荷特性研究較少。為此通過電聲脈沖法對比研究了Nomex絕緣紙和傳統(tǒng)纖維素絕緣紙的空間電荷的積聚和消散特性,結(jié)果表明:在相同的電場強(qiáng)度下,Nomex絕緣紙內(nèi)部空間電荷的注入量明顯低于Kraft絕緣紙;隨著電場強(qiáng)度越高,Kraft絕緣紙內(nèi)部空間電荷積聚越明顯,而在任何電場強(qiáng)度下,Kraft絕緣紙內(nèi)部的空間電荷偏移都更加明顯;Kraft絕緣紙比Nomex絕緣紙更容易發(fā)生空間電荷積聚;Kraft絕緣紙的電荷消散速率和遷移率大于Nomex絕緣紙。
[Abstract]:At present, more and more power equipment begin to try new insulating media to replace the traditional cellulose insulator paper and the new insulation oil. Nomex insulator paper has good mechanical and electrical properties. However, the space charge characteristics of Nomex insulator paper and traditional cellulose insulator paper in KI50X insulating oil are less studied because of their long-term operation at relatively high temperature without affecting their insulation properties. In this paper, the characteristics of space charge accumulation and dissipation of Nomex insulator paper and traditional cellulose insulator paper were studied by electroacoustic pulse method. The results show that the space charge injection rate of Nomex insulator paper is obviously lower than that of Kraft insulator paper under the same electric field intensity, and the space charge accumulation in Kraft insulator paper is more obvious with the increase of electric field intensity. At any electric field intensity, the inner space charge shift of Kraft insulator paper is more obvious than that of Nomex insulator paper. The charge dissipation rate and mobility of Kraft insulator paper are higher than that of Nomex insulator paper.
【作者單位】： 北京交通大學(xué)電氣工程學(xué)院;清華大學(xué)電力系統(tǒng)及發(fā)電設(shè)備安全控制和仿真國家重點實驗室;
【分類號】：TM215.6

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1 廖瑞金;李偉;楊麗君;郝建;周欣;李劍;;NOMEX合成纖維絕緣介質(zhì)在直流電場中的空間電荷特性[J];高電壓技術(shù);2011年08期

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本文編號：1861026