Pub Date : 2025-10-24DOI: 10.1109/MEI.2025.11217419
Every two years, the IEEE Dielectrics and Electrical Insulation Society selects an individual for their outstanding, original contributions in advancing the technology of dielectrics and electrical insulation. The DEIS is now seeking nominations for the 2026 Dakin Award. Nominations can be made by submitting an e-mail or letter to Greg Stone by January 31, 2026. Nominations must provide the name of the nominee, his or her CV, why the nominee is worthy of the award, and the proposed citation. The nominator must also indicate at least three people who will endorse the nomination and who will provide their letter of support for the nomination directly to Greg Stone.
{"title":"Bulletin Board: Call for Nominations: 2026 Thomas W. Dakin Distinguished Technical Contributions Award Deadline: January 31, 2026","authors":"","doi":"10.1109/MEI.2025.11217419","DOIUrl":"https://doi.org/10.1109/MEI.2025.11217419","url":null,"abstract":"Every two years, the IEEE Dielectrics and Electrical Insulation Society selects an individual for their outstanding, original contributions in advancing the technology of dielectrics and electrical insulation. The DEIS is now seeking nominations for the 2026 Dakin Award. Nominations can be made by submitting an e-mail or letter to Greg Stone by January 31, 2026. Nominations must provide the name of the nominee, his or her CV, why the nominee is worthy of the award, and the proposed citation. The nominator must also indicate at least three people who will endorse the nomination and who will provide their letter of support for the nomination directly to Greg Stone.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 6","pages":"57-57"},"PeriodicalIF":1.3,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11217419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-24DOI: 10.1109/MEI.2025.11217420
Tony Lujia Chen
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.
{"title":"From the Editor","authors":"Tony Lujia Chen","doi":"10.1109/MEI.2025.11217420","DOIUrl":"https://doi.org/10.1109/MEI.2025.11217420","url":null,"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.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 6","pages":"4-5"},"PeriodicalIF":1.3,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11217420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1109/MEI.2025.11039229
Arijeet Roy Chowdhury;Abhay Singh Gour
This article studies the effects (experimental studies and theoretical estimation) on high-temperature-superconducting cable operation of change of cryogen from liquid nitrogen to liquid hydrogen.
本文研究了液氮变液氢对高温超导电缆运行的影响（实验研究和理论估计）。
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Pub Date : 2025-06-17DOI: 10.1109/MEI.2025.11039204
Zepeng Lv
Aluminum electrolytic capacitors (AEC), with their notable advantages of having a low cost and high capacitance, have widespread application in numerous fields such as power circuits, signal processing circuits, automotive electronics, and industrial control [1]–[4]. However, because of the low conductivity and poor temperature and humidity stability of traditional cathode materials, AEC face significant challenges in achieving breakthroughs in performance, such as high-frequency response (>30 kHz), high-temperature resistance (>150°C), and high-humidity tolerance (>90% relative humidity [RH]) [1]. These limitations severely restrict their potential applications in fields such as new energy vehicles, rail transportation, aerospace, and marine engineering (Figure 1).
{"title":"Stories from China","authors":"Zepeng Lv","doi":"10.1109/MEI.2025.11039204","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039204","url":null,"abstract":"Aluminum electrolytic capacitors (AEC), with their notable advantages of having a low cost and high capacitance, have widespread application in numerous fields such as power circuits, signal processing circuits, automotive electronics, and industrial control [1]–[4]. However, because of the low conductivity and poor temperature and humidity stability of traditional cathode materials, AEC face significant challenges in achieving breakthroughs in performance, such as high-frequency response (>30 kHz), high-temperature resistance (>150°C), and high-humidity tolerance (>90% relative humidity [RH]) [1]. These limitations severely restrict their potential applications in fields such as new energy vehicles, rail transportation, aerospace, and marine engineering (Figure 1).","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"43-45"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11039204","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1109/MEI.2025.11039234
If you are excited to work together in a team of experts and help shape the content of IEEE Electrical Insulation Magazine (EIM), you may want to apply for a position on the Editorial Board. DEIS is now looking for two new board members, starting January 1, 2026.
{"title":"Bulletin Board: IEEE Electrical Insulation Magazine Is Looking for Two New Board Members","authors":"","doi":"10.1109/MEI.2025.11039234","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039234","url":null,"abstract":"If you are excited to work together in a team of experts and help shape the content of IEEE Electrical Insulation Magazine (EIM), you may want to apply for a position on the Editorial Board. DEIS is now looking for two new board members, starting January 1, 2026.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"54-54"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11039234","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1109/MEI.2025.11039203
H. Craig Miller
This article gives the history of the International Symposia on Discharges and Electrical Insulation in Vacuum (ISDEIV). The author describes details of individual symposia and comments on the changes in the symposia.
{"title":"History of the International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)—60 Years So Far","authors":"H. Craig Miller","doi":"10.1109/MEI.2025.11039203","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039203","url":null,"abstract":"This article gives the history of the International Symposia on Discharges and Electrical Insulation in Vacuum (ISDEIV). The author describes details of individual symposia and comments on the changes in the symposia.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"31-38"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1109/MEI.2025.11039232
Simon Rowland, professor of electrical materials at the University of Manchester, UK, is the recipient of the 2025 IEEE DEIS Eric O. Forster Memorial Award. The award recognizes “outstanding contributions and sustained leadership in the advancement of the field of dielectrics and electrical insulation.” The award is named in honor of Eric Forster, who was a prolific volunteer for the IEEE DEIS during its early years and who created many of the DEIS conferences the IEEE Dielectrics and Electrical Insulation Society now organizes. The Forster Award is only presented in odd-numbered years to carefully selected colleagues. Rowland received his BSc degree in 1980 from the University of East Anglia in Norwich and his PhD degree in 1984 from Chelsea College, The University of London. In his academic career, he was appointed a senior lecturer in 2003 and a professor in 2009 at the University of Manchester. Prof. Rowland was head of the Electrical and Electronic Engineering School at Manchester from 2015 to 2019. Before his academic career, he worked as a research engineer at STC in 1980–1981 and 1984–1989; in several engineering and management positions at BICC, a cable manufacturer, from 1989 until 1999; and in senior management at CCS, a part of Corning Inc., beginning 1999.
Simon Rowland，英国曼彻斯特大学电子材料教授，获得2025年IEEE DEIS Eric O. Forster纪念奖。该奖项旨在表彰“在电介质和电绝缘领域的杰出贡献和持续领导”。该奖项是为了纪念埃里克·福斯特而命名的，他在IEEE DEIS早期是一位多产的志愿者，他创建了许多由IEEE介电和电气绝缘协会组织的DEIS会议。福斯特奖只在奇数年颁发给精心挑选的同事。他于1980年在诺里奇的东安格利亚大学获得理学士学位，并于1984年在伦敦大学切尔西学院获得博士学位。在学术生涯中，他于2003年被任命为曼彻斯特大学高级讲师，2009年被任命为教授。罗兰教授于2015年至2019年担任曼彻斯特大学电气与电子工程学院院长。在从事学术工作之前，他曾于1980-1981年和1984-1989年在STC担任研究工程师；1989年至1999年，在电缆制造商BICC担任多个工程和管理职位；1999年开始在康宁公司旗下的CCS公司担任高级管理职务。
{"title":"Bulletin Board: 2025 DEIS Eric O. Forster Award","authors":"","doi":"10.1109/MEI.2025.11039232","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039232","url":null,"abstract":"Simon Rowland, professor of electrical materials at the University of Manchester, UK, is the recipient of the 2025 IEEE DEIS Eric O. Forster Memorial Award. The award recognizes “outstanding contributions and sustained leadership in the advancement of the field of dielectrics and electrical insulation.” The award is named in honor of Eric Forster, who was a prolific volunteer for the IEEE DEIS during its early years and who created many of the DEIS conferences the IEEE Dielectrics and Electrical Insulation Society now organizes. The Forster Award is only presented in odd-numbered years to carefully selected colleagues. Rowland received his BSc degree in 1980 from the University of East Anglia in Norwich and his PhD degree in 1984 from Chelsea College, The University of London. In his academic career, he was appointed a senior lecturer in 2003 and a professor in 2009 at the University of Manchester. Prof. Rowland was head of the Electrical and Electronic Engineering School at Manchester from 2015 to 2019. Before his academic career, he worked as a research engineer at STC in 1980–1981 and 1984–1989; in several engineering and management positions at BICC, a cable manufacturer, from 1989 until 1999; and in senior management at CCS, a part of Corning Inc., beginning 1999.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"52-52"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11039232","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1109/MEI.2025.11039199
Deepak Kanumuri
When I began my PhD in high voltage and insulation engineering at IIT Guwahati, I was driven by a desire to contribute something meaningful to the energy sector, something that could help make future power systems more sustainable and more resilient. This was rooted in a question that drives much of my research: How can we create eco-friendly, high-performance alternatives to traditional insulating oils in transformers, especially for high-voltage direct current (HVDC) systems?
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