Standard Evolution for the Determination of the Power Frequency Breakdown Voltages in Insulating Liquids

2018 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2018-10-01 DOI:10.1109/CEIDP.2018.8544887

L. Calcara, M. Pompili, S. Sangiovanni, M. Baur, J. Knauel

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引用次数: 6

Abstract

The 2016–2018 ongoing revision of the lEC 60156 “Insulating liquids - Determination of the breakdown voltage at power frequency” was just approved and the revised standard will be published by the end of 2018. This document will include the recommended use of a stirring system with the main purpose to reduce the scatter in the ac breakdown voltage results. The present paper reports a comparison of breakdown voltage mean values and related scatters of two different insulating liquids (traditional mineral oils and natural ester liquids) in accordance with the tests methods of the actual and 2018 upcoming revision of IEC 60156. The results presented here confirm that the modification (stirring system) introduced in the lEC standardized test method, even a simple rearrangement, is able to reduce the scatter of the mean values of the breakdown voltage of the insulating liquids. Some considerations of an alternative test method procedure introduced by the 2018 upcoming revision of lEC 60156 are also reported.

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绝缘液体中工频击穿电压测定的标准演变

2016-2018年正在进行的lEC 60156“绝缘液体-工频击穿电压的测定”的修订刚刚获得批准，修订后的标准将于2018年底发布。本文件将包括搅拌系统的推荐使用，其主要目的是减少交流击穿电压结果中的散射。本文根据IEC 60156现行和2018年即将修订的测试方法，对两种不同绝缘液体(传统矿物油和天然酯液体)的击穿电压平均值和相关散射进行了比较。本文的结果证实，在lEC标准化测试方法中引入的修改(搅拌系统)，即使是简单的重新排列，也能够降低绝缘液体击穿电压平均值的散射。还报告了2018年即将修订的lEC 60156引入的替代测试方法程序的一些考虑。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2018 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

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