From the Editor

IF 2 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Electrical Insulation Magazine Pub Date : 2025-10-24 DOI:10.1109/MEI.2025.11217420

Tony Lujia Chen

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引用次数: 0

Abstract

This issue features three articles, the first of which, by Chen, Liu, Jarman, and Wilson, titled “Application of Ester-Based Tracers for Diagnosing Tap Changer Switch Oil Leaks in Power Transformers,” presents a new diagnostic approach for identifying oil migration between compartments in high-voltage transformers. It proposes the use of synthetic ester liquids as tracers, which are fully miscible in mineral oil and detectable via Fourier-transform infrared spectroscopy because of their unique ester functional group. The study details the preparation of various mineral oil samples, unused, laboratory aged, and in-service aged, with synthetic ester and demonstrates a strong linear correlation between ester concentration and absorbance for the C=O ester functional group. The results show that the detection limit of the measurement procedure is between 0.02% and 0.01%. The methodology shows high repeatability and minimal interference from aging by-products, confirming the feasibility of a synthetic ester liquid as an identification marker for diagnosing tap changer oil leaks. This work is particularly relevant for engineers and asset managers seeking to enhance transformer reliability through improved leak detection and compartmental integrity assessment.

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来自编辑

这期有三篇文章，第一篇文章由Chen， Liu， Jarman和Wilson撰写，题为“基于酯的示踪剂在电力变压器分接开关漏油诊断中的应用”，提出了一种新的诊断方法，用于识别高压变压器隔室之间的油迁移。建议使用合成酯类液体作为示踪剂，由于其独特的酯官能团，可与矿物油完全混溶，并可通过傅里叶变换红外光谱检测。本研究详细介绍了用合成酯制备各种矿物油样品，包括未使用的、实验室老化的和在役老化的，并证明了C=O酯官能团的酯浓度与吸光度之间存在很强的线性关系。结果表明，该方法的检出限在0.02% ~ 0.01%之间。该方法具有较高的重复性和最小的老化副产物干扰，证实了合成酯液体作为分接开关漏油诊断的识别标记物的可行性。这项工作对于工程师和资产管理人员来说尤其重要，他们希望通过改进泄漏检测和隔层完整性评估来提高变压器的可靠性。

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

IEEE Electrical Insulation Magazine 工程技术-工程：电子与电气

CiteScore

4.60

自引率

3.40%

发文量

121

审稿时长

>12 weeks

期刊介绍： The EI Magazine publishes articles written by authors from industry, research institutes and academia. The articles are more practical in content than the papers published in the Transactions. Usually three articles are published in each issue. The articles deal with dielectric materials, processes and new developments applied to industry products. Also the EI Magazine is used to promote upcoming conferences and solicits papers for the conferences. In addition, reports on past conferences are given in many issues. Book reviews and news items are included. An editorial is written by both the EIC and the President of DEIS in alternate issues. Advertising of insulation products appears in many issues.