{"title":"Studies on a Cold-Dielectric Measurement System for Liquid-Nitrogen-Cooled High-Temperature-Superconducting Power Devices and its Variation Due to Change of Cryogen (Liquid Hydrogen)","authors":"Arijeet Roy Chowdhury;Abhay Singh Gour","doi":"10.1109/MEI.2025.11039229","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039229","url":null,"abstract":"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.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"22-30"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308230","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}
{"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}
{"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}
{"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}
{"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}
{"title":"Young Professionals","authors":"Deepak Kanumuri","doi":"10.1109/MEI.2025.11039199","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039199","url":null,"abstract":"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?","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"46-47"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11039199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308326","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}
{"title":"Apparent Charge Measurement According to IEC 60270. How is it Done?","authors":"Mathieu Lachance;Udo Ranninger;Stefan Hoek","doi":"10.1109/MEI.2025.11039197","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039197","url":null,"abstract":"This article summarizes how the apparent charge is calculated during partial discharge measurements according to IEG 60270.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"6-21"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308327","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}
{"title":"News from Japan","authors":"Yoshimichi Ohki","doi":"10.1109/MEI.2025.11039228","DOIUrl":"https://doi.org/10.1109/MEI.2025.11039228","url":null,"abstract":"The role of power facilities in delivering electricity, which supports our modern society, from power plants to consumers is becoming increasingly important. There are many different types of electric power equipment. Among them, switchgear receives high-voltage electricity and converts it into a voltage suitable for distribution to various systems. As a result, switchgear is used in many harsh environments, including in factories that handle corrosive gases and in facilities located in areas prone to salt damage. As shown in Figure 1, switchgear is composed of many pieces of equipment, such as transformers, circuit breakers, instrument transformers, and circuit conductors. Polymeric insulating materials such as polyester resin and epoxy resin are used in many components [1].","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"41 4","pages":"39-42"},"PeriodicalIF":2.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11039228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308430","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}