【摘要】：為了正確測(cè)量絕緣油的離子遷移率并掌握其隨溫度的變化特性,重點(diǎn)研究了采用極性反轉(zhuǎn)方法測(cè)量絕緣油離子遷移率,探究了電壓幅值、極性反轉(zhuǎn)時(shí)間對(duì)測(cè)量結(jié)果的影響;測(cè)量了3種絕緣油在不同溫度下的離子遷移率變化特性,對(duì)比分析了不同標(biāo)準(zhǔn)和測(cè)量方法所得電導(dǎo)率結(jié)果的差異;此外,還對(duì)油均衡離子數(shù)密度和離子等效半徑等重要參數(shù)進(jìn)行了分析和討論。結(jié)果表明,盡管幾種不同商用礦物絕緣油具有較為接近的理化參數(shù),但其離子遷移率和活化能大小卻差別較大,且各項(xiàng)特性參數(shù)會(huì)因不同的活化能大小而在不同溫度下表現(xiàn)出較大差異。
[Abstract]:In order to correctly measure the ion mobility of insulating oil and grasp its variation characteristics with temperature, the measurement of ion mobility of insulating oil by polarity inversion method was studied, and the effect of voltage amplitude and polarity reversal time on the measurement results was investigated. The variation characteristics of ion mobility of three insulating oils at different temperatures were measured, and the differences of conductivity obtained by different standards and methods were compared and analyzed. Some important parameters, such as the number density and equivalent radius of oil ions, are also analyzed and discussed. The results show that although several kinds of commercial mineral insulating oils have similar physical and chemical parameters, their ionic mobility and activation energy vary greatly. Each characteristic parameter will show great difference at different temperature because of different activation energy.
【作者單位】： 重慶大學(xué)輸配電裝備及系統(tǒng)安全與新技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室;重慶電力科學(xué)試驗(yàn)研究院;
【基金】：國(guó)家自然科學(xué)基金(51277187)~~
【分類號(hào)】：TM721.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 紀(jì)哲強(qiáng);吳建東;蘭莉;李U，

本文編號(hào)：2238094