Effect of Insulating Oil on Space Charge Characteristics of Oil-impregnated Paper Under DC Voltage

2020 IEEE 3rd International Conference on Dielectrics (ICD) Pub Date : 2020-07-05 DOI:10.1109/ICD46958.2020.9341880

Ganlin Mao, Shengtao Li, Shijun Li, Zhao Ge, Liuqing Yang, Liuhao Jiang

{"title":"Effect of Insulating Oil on Space Charge Characteristics of Oil-impregnated Paper Under DC Voltage","authors":"Ganlin Mao, Shengtao Li, Shijun Li, Zhao Ge, Liuqing Yang, Liuhao Jiang","doi":"10.1109/ICD46958.2020.9341880","DOIUrl":null,"url":null,"abstract":"At present, the oil-paper insulation structure is mainly composed of traditional mineral oil and cellulose insulation paper. The hots pot of future research is to select better insulation oil to improve the overall insulation life of the system. Compared with traditional mineral insulation oil, gas to liquid(GTL) oil made from base oil refined by natural gas liquefaction technology by Fischer-Tropsch(FT) method are characterized by high oxidative stability and low sulfur content. In this paper, the space charge accumulation, distribution and attenuation characteristics of oil-impregnated paper composed of GTL oil and traditional mineral oil were studied. The space trap energy level and trap density distribution of two oil-impregnated papers were obtained according to isothermal decay current(IDC) method. The experimental results show that in the voltage-on stage, traditional mineral oil-impregnated paper is more prone to charge injection and the injection speed is faster. In the voltage-off stage, the traditional mineral oil-impregnated paper attenuates the charge faster, and the GTL oil-impregnated paper has more residual charge. Moreover, the trap level of GTL oil-impregnated paper is deeper than that of traditional mineral oil-impregnated paper.","PeriodicalId":6795,"journal":{"name":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","volume":"51 1","pages":"443-446"},"PeriodicalIF":0.0000,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 3rd International Conference on Dielectrics (ICD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICD46958.2020.9341880","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

At present, the oil-paper insulation structure is mainly composed of traditional mineral oil and cellulose insulation paper. The hots pot of future research is to select better insulation oil to improve the overall insulation life of the system. Compared with traditional mineral insulation oil, gas to liquid(GTL) oil made from base oil refined by natural gas liquefaction technology by Fischer-Tropsch(FT) method are characterized by high oxidative stability and low sulfur content. In this paper, the space charge accumulation, distribution and attenuation characteristics of oil-impregnated paper composed of GTL oil and traditional mineral oil were studied. The space trap energy level and trap density distribution of two oil-impregnated papers were obtained according to isothermal decay current(IDC) method. The experimental results show that in the voltage-on stage, traditional mineral oil-impregnated paper is more prone to charge injection and the injection speed is faster. In the voltage-off stage, the traditional mineral oil-impregnated paper attenuates the charge faster, and the GTL oil-impregnated paper has more residual charge. Moreover, the trap level of GTL oil-impregnated paper is deeper than that of traditional mineral oil-impregnated paper.

查看原文本刊更多论文

直流电压下绝缘油对油浸纸空间电荷特性的影响

目前，油纸绝缘结构主要由传统矿物油和纤维素绝缘纸组成。如何选择更好的绝缘油来提高系统的整体绝缘寿命是今后研究的热点。与传统的矿物绝热油相比，以基础油为原料，采用费托液化(FT)法制备的气转液(GTL)油具有氧化稳定性高、硫含量低等特点。本文研究了GTL油和传统矿物油组成的浸渍纸的空间电荷积累、分布和衰减特性。采用等温衰减电流(IDC)法测定了两种油浸纸的空间陷阱能级和陷阱密度分布。实验结果表明，在通电阶段，传统矿物油浸渍纸更容易发生电荷注入，注入速度更快。在电压下降阶段，传统矿物油浸渍纸的电荷衰减更快，而GTL浸渍纸的剩余电荷更多。此外，GTL油浸纸的捕集层比传统矿物油浸纸深。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2020 IEEE 3rd International Conference on Dielectrics (ICD)

自引率

0.00%

发文量