Three-Parameter Weibull Distribution Curves for LIBV of Pressboard Samples Impregnated with Natural Ester and Mineral Oil

2019 IEEE 20th International Conference on Dielectric Liquids (ICDL) Pub Date : 2019-06-01 DOI:10.1109/ICDL.2019.8796746

Artur Klarecki, P. Rózga

{"title":"Three-Parameter Weibull Distribution Curves for LIBV of Pressboard Samples Impregnated with Natural Ester and Mineral Oil","authors":"Artur Klarecki, P. Rózga","doi":"10.1109/ICDL.2019.8796746","DOIUrl":null,"url":null,"abstract":"The studies presented in this paper were focused on comparative analysis of Weibull distribution curves determined for lightning impulse breakdown voltages of 1 mm thick pressboard samples impregnated with natural ester and mineral oil respectively. The analysis of the results was made using three-parameter Weibull distribution function with location parameter Vo (theoretical zero probability) meaning the threshold value of voltage below which breakdown does not happened. The curves obtained within the studies are in general similar in shape with some benefits in direction of curves connected with pressboard impregnated by natural ester liquid. Quantitatively the difference between the considered cases was found as very small (around 2 kV when comparing the Vo obtained). The reason for this may be the difference in electrical permittivity of pressboard impregnated by ester, which is a little bit higher in comparison with pressboard impregnated by mineral oil. The studies confirmed also that the applied three-parameter Weibull distribution is an excellent statistical tool for determination of threshold electrical strength of liquid-solid insulation systems.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICDL.2019.8796746","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

The studies presented in this paper were focused on comparative analysis of Weibull distribution curves determined for lightning impulse breakdown voltages of 1 mm thick pressboard samples impregnated with natural ester and mineral oil respectively. The analysis of the results was made using three-parameter Weibull distribution function with location parameter Vo (theoretical zero probability) meaning the threshold value of voltage below which breakdown does not happened. The curves obtained within the studies are in general similar in shape with some benefits in direction of curves connected with pressboard impregnated by natural ester liquid. Quantitatively the difference between the considered cases was found as very small (around 2 kV when comparing the Vo obtained). The reason for this may be the difference in electrical permittivity of pressboard impregnated by ester, which is a little bit higher in comparison with pressboard impregnated by mineral oil. The studies confirmed also that the applied three-parameter Weibull distribution is an excellent statistical tool for determination of threshold electrical strength of liquid-solid insulation systems.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

天然酯和矿物油浸渍纸板样品LIBV的三参数威布尔分布曲线

本文主要研究了分别浸渍天然酯和矿物油的1mm厚纸板样品的雷击击穿电压威布尔分布曲线的对比分析。采用三参数威布尔分布函数对结果进行分析，位置参数Vo(理论零概率)表示低于击穿电压的阈值。研究得到的曲线在形状上大体相似，在与天然酯液浸渍的纸板相连接的曲线方向上有一定的优势。从数量上看，所考虑的情况之间的差异非常小(在比较得到的Vo时约为2 kV)。造成这种情况的原因可能是酯浸渍纸板的介电常数存在差异，与矿物油浸渍纸板相比介电常数略高。研究还证实，应用三参数威布尔分布是确定液固绝缘系统阈值电强度的一个很好的统计工具。

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分钟内获得全文去求助

来源期刊

2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)

自引率

0.00%

发文量

期刊最新文献

SF6 Gas Replacement in Pulsed High Voltage Coaxial Cables Electron Self-Trapping in Vortex Rings in Superfluid Helium Numerical Study of the Thermal Excitation Applied to a Dielectric Liquid Film Assessing the Production and Loss of Electrons from Conduction Currents in Mineral Oil The conformity of DGA interpretation techniques: Experience from transformer 132 units