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News from Japan: Development of a Nanodielectric High-Voltage Rotating Machine 日本消息：纳米介电高压旋转电机的研制
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569835
Yoshimichi Ohki
{"title":"News from Japan: Development of a Nanodielectric High-Voltage Rotating Machine","authors":"Yoshimichi Ohki","doi":"10.1109/MEI.2026.11569835","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569835","url":null,"abstract":"Organic polymer insulating materials have been used for electrical insulation for many years. The electrodes of electric power equipment and electronic devices are almost always made of metal. The thermal expansion coefficient of polymers is about one order of magnitude higher than that of metals. This becomes a problem when temperatures change. In addition, the thermal conductivity of polymers is about three orders of magnitude lower than that of metals. This is a problem in preventing temperature increase in the equipment. To address these issues, composite insulation, which contains large amounts of inorganic insulators, called fillers, dispersed in polymers, has long been used.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"53-58"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11569835","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433327","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}
引用次数: 0
Stories from China: Microarc Oxidation Layer on Aluminum Surface Significantly Suppresses Partial Discharge at Triple Junction Point on Insulation Surface 来自中国的报道：铝表面的微弧氧化层显著抑制绝缘表面三交界点的局部放电
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569836
Zepeng Lv
{"title":"Stories from China: Microarc Oxidation Layer on Aluminum Surface Significantly Suppresses Partial Discharge at Triple Junction Point on Insulation Surface","authors":"Zepeng Lv","doi":"10.1109/MEI.2026.11569836","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569836","url":null,"abstract":"The “triple junction” (TJ) point where a metal electrode, an insulating material, and gas (or vacuum) meet has been one of the most widely known problem for the prevention of discharge. Surface discharge at the TJ point is easily triggered as the electric field distortion and charge accumulation at TJ significantly lower the partial discharge inception voltage (PDIV). These junctions are considered to be the weakest points in gas insulated switchgear (GIS), gas insulated transmission lines (GIL), and other equipment [1]–[2].","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"59-60"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11569836","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433257","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}
引用次数: 0
A Review of Carrier Mobility Measurement Techniques for Solid Dielectrics 固体介质载流子迁移率测量技术综述
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-18 DOI: 10.1109/MEI.2026.11569906
Luyao Zhong;Su Zhao;Yalin Wang;Lu Fan;Xiaolei Zhao;Jiandong Wu;Yi Yin
{"title":"A Review of Carrier Mobility Measurement Techniques for Solid Dielectrics","authors":"Luyao Zhong;Su Zhao;Yalin Wang;Lu Fan;Xiaolei Zhao;Jiandong Wu;Yi Yin","doi":"10.1109/MEI.2026.11569906","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569906","url":null,"abstract":"This article reviews seven major techniques for measuring charge carrier mobility in solid insulating dielectrics, comparing their operating principles, applicable material systems, practical limitations, and future prospects for reliable charge-transport characterization.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"6-22"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148442411","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}
引用次数: 0
IEEE Electrical Insulation Magazine July/August 2026 Front Cover IEEE电气绝缘杂志2026年7 / 8月封面
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569910
{"title":"IEEE Electrical Insulation Magazine July/August 2026 Front Cover","authors":"","doi":"10.1109/MEI.2026.11569910","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569910","url":null,"abstract":"","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"C1-C1"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11569910","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433331","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}
引用次数: 0
IEEE Electrical Insulation Magazine July/August 2026 Table of Contents IEEE电气绝缘杂志2026年7月/ 8月目录表
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569839
{"title":"IEEE Electrical Insulation Magazine July/August 2026 Table of Contents","authors":"","doi":"10.1109/MEI.2026.11569839","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569839","url":null,"abstract":"","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"1-1"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11569839","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433334","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}
引用次数: 0
Conditioning a Transformer Insulation System, Part 1: Drying and Degassing 变压器绝缘系统的调理，第1部分：干燥和脱气
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569885
T. Jayasree;U. Mohan Rao;I. Fofana;S. Brettschneider;E. M. Rodriguez Celis;P. Picher
{"title":"Conditioning a Transformer Insulation System, Part 1: Drying and Degassing","authors":"T. Jayasree;U. Mohan Rao;I. Fofana;S. Brettschneider;E. M. Rodriguez Celis;P. Picher","doi":"10.1109/MEI.2026.11569885","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569885","url":null,"abstract":"The pursuit of enhanced transformer drying and degassing methods, focusing on effectiveness, efficiency, and environmental concerns and circular economy, has spurred the development of innovative procedures. This article provides comprehensive tutorials and critical analyses on these advancements.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"36-49"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433249","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}
引用次数: 0
The Problem of the Influence of Voltage Harmonics on Partial Discharge Power Losses Demonstrated on a Power Cable Joint and Motor Coil 电压谐波对电力电缆接头和电机线圈局部放电功率损耗的影响问题
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569884
M. Florkowski;M. Kuniewski;P. Mikrut
{"title":"The Problem of the Influence of Voltage Harmonics on Partial Discharge Power Losses Demonstrated on a Power Cable Joint and Motor Coil","authors":"M. Florkowski;M. Kuniewski;P. Mikrut","doi":"10.1109/MEI.2026.11569884","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569884","url":null,"abstract":"This article introduces a methodology for the quantitative determination of partial-discharge-related power losses induced by high-voltage harmonics, with particular emphasis on the role of the phase angle in either amplifying or attenuating these loss components.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"23-35"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433337","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}
引用次数: 0
Young Professionals: IEEE DEIS Young Professionals and Women in Engineering Participation at the 2026 IEEE YP/WIE/SAC/LM Joint Meeting 青年专业人员：IEEE DEIS青年专业人员和女性在2026 IEEE YP/WIE/SAC/LM联席会议上的参与
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569840
Sneha Satish Hegde
{"title":"Young Professionals: IEEE DEIS Young Professionals and Women in Engineering Participation at the 2026 IEEE YP/WIE/SAC/LM Joint Meeting","authors":"Sneha Satish Hegde","doi":"10.1109/MEI.2026.11569840","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569840","url":null,"abstract":"The IEEE Dielectrics and Electrical Insulation Society (DEIS) Young Professionals (YP) and Women in Engineering (WIE) representatives Moein Borghei and Sneha Satish Hegde participated in the 2026 IEEE YP/WIE/SAC/LM Joint Meeting, held from March 6 to 8 at the Royal Sheraton Riverside Hotel in Bangkok, Thailand. The meeting brought together volunteers and leaders from across IEEE Organizational Units (OU), offering a valuable space for learning, collaboration, and exchanging ideas (Figure 1).","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"61-62"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11569840","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433338","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}
引用次数: 0
Editorial: Advancing DEIS Through Strong Governance and Global Engagement 社论：通过强有力的治理和全球参与推进DEIS
IF 2 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-07-01 Epub Date: 2026-06-17 DOI: 10.1109/MEI.2026.11569901
Mona Ghassemi
{"title":"Editorial: Advancing DEIS Through Strong Governance and Global Engagement","authors":"Mona Ghassemi","doi":"10.1109/MEI.2026.11569901","DOIUrl":"https://doi.org/10.1109/MEI.2026.11569901","url":null,"abstract":"The IEEE Dielectrics and Electrical Insulation Society (DEIS) continues to grow as a global community at the intersection of materials, systems, and emerging electrification technologies. In my role as vice president–administrative, I would like to share how our administrative and operational efforts support this growth and help advance the DEIS mission. In close collaboration with our president, Prof. Akiko Kumada, and the DEIS Executive Committee, we are working to align our administrative efforts with the Society's strategic vision and evolving global priorities, including the ongoing transformation of energy systems and electrification technologies.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 4","pages":"3-3"},"PeriodicalIF":2.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11569901","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433252","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}
引用次数: 0
Over 40 Years of Ester Dielectric Liquids for High-Voltage Transformers: A Retrospective on Evolution, Performance, and Future Prospects (An Extended report of the Hans Tropper Memorial Lecture 2025) 高压变压器用酯介质液体40多年：回顾发展、性能和未来前景（汉斯·特罗珀纪念讲座2025的扩展报告）
IF 1.3 4区 工程技术
IEEE Electrical Insulation Magazine Pub Date : 2026-03-01 Epub Date: 2026-03-17 DOI: 10.1109/MEI.2026.11440084
I. Fofana;J. S. N'Cho;U. Mohan Rao;P. Rozga;Feipeng Wang;A. Beroual
{"title":"Over 40 Years of Ester Dielectric Liquids for High-Voltage Transformers: A Retrospective on Evolution, Performance, and Future Prospects (An Extended report of the Hans Tropper Memorial Lecture 2025)","authors":"I. Fofana;J. S. N'Cho;U. Mohan Rao;P. Rozga;Feipeng Wang;A. Beroual","doi":"10.1109/MEI.2026.11440084","DOIUrl":"https://doi.org/10.1109/MEI.2026.11440084","url":null,"abstract":"This article reviews more than four decades of experience with ester-based insulating liquids in high-voltage power transformers, highlighting major milestones, performance advantages, technical challenges, and the evolving role of esters in enabling safer, more efficient, and environmentally sustainable power systems.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 2","pages":"5-19"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557799","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}
引用次数: 0
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