{"title":"Bulletin Board: NEMA Announces 2026 Golden Omega Award Winner","authors":"","doi":"10.1109/MEI.2026.11493691","DOIUrl":"https://doi.org/10.1109/MEI.2026.11493691","url":null,"abstract":"NEMA has nominated Solomon Chiang, Senior Technical Fellow at The Gund Company, for the 2026 Golden Omega Award, to be presented during the 44th Electrical Insulation Conference (EIC), July 12 to 16, 2026, in Las Vegas, Nevada.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 3","pages":"43-43"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11493691","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147732991","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}
Hans Bärnklau;Kai Neikes;Lena Elspaß;Stephan Schlegel;Jens Proske
{"title":"Practical Experience with a Thermal Classification Test According to IEC 60034-18-31 for Type II Machine Insulation Systems","authors":"Hans Bärnklau;Kai Neikes;Lena Elspaß;Stephan Schlegel;Jens Proske","doi":"10.1109/MEI.2026.11493705","DOIUrl":"https://doi.org/10.1109/MEI.2026.11493705","url":null,"abstract":"Practical experiences with a thermal classification test according to IEC 60034-18-31 and considerations regarding the test voltage level and mechanical stress are discussed in the context of specimen design and total duration of the investigations.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 3","pages":"7-19"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733004","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: TEPCO Power Grid Builds Japan's First Extra-High-Voltage Digital Substation","authors":"Yoshimichi Ohki","doi":"10.1109/MEI.2026.11493692","DOIUrl":"https://doi.org/10.1109/MEI.2026.11493692","url":null,"abstract":"In Japan, overall electricity demand had remained almost constant, or even dropped slightly, for a long time until 2023, thanks to the progress of energy conservation measures. However, this situation is about to change drastically. This is because the progress in green transformation (GX) and digital transformation (DX) is driving an increase in large-scale electricity demand for data centers (DC), semiconductor factories, and the decarbonization of factories, including conversion to electric furnaces for steel production.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 3","pages":"28-31"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11493692","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147732994","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}
Lena Elspass;Stephan Schlegel;Hans Bärnklau;Andreas Gündel;Jens Proske;Maria Kosse
{"title":"Test Procedure to Assess the Resilience of Rotating Machine Insulation Systems Against Shear Stress","authors":"Lena Elspass;Stephan Schlegel;Hans Bärnklau;Andreas Gündel;Jens Proske;Maria Kosse","doi":"10.1109/MEI.2026.11440038","DOIUrl":"https://doi.org/10.1109/MEI.2026.11440038","url":null,"abstract":"This article introduces a test procedure that allows the evaluation of different GVPI-manufactured insulation systems of rotating machines regarding their ability to withstand thermomechanical stress.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 2","pages":"33-41"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557749","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":"IEEE Transactions on Dielectrics and Electrical Insulation Feb 2026 Table of Contents Reprint","authors":"","doi":"10.1109/MEI.2026.11493702","DOIUrl":"https://doi.org/10.1109/MEI.2026.11493702","url":null,"abstract":"","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 3","pages":"44-47"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11493702","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733003","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":"From the Editor","authors":"","doi":"10.1109/MEI.2026.11440041","DOIUrl":"https://doi.org/10.1109/MEI.2026.11440041","url":null,"abstract":"This issue features three articles, the first of which is by Fofana et al., titled “Over 40 Years of Ester Dielectric Liquids for High-Voltage Transformers: A Retrospective on Evolution, Performance, and Future Prospects.” The article provides a comprehensive review of the development and application of ester-based insulating liquids in power transformers. The article reviews the history, key drivers, and barriers to the adoption of ester-based insulating liquids, and critical topics specific to their use in power transformers, while emphasizing the role of ester liquids in reducing environmental risks and supporting the transition to safer, more-resilient power systems. The article discusses key benefits of using ester-based insulating liquids, including biodegradability, fire safety, and moisture tolerance, making these liquids well-suited for urban and ecologically sensitive environments. A growing track record in field experience, including units rated up to 750 kV, demonstrates that previous technical limitations are being resolved.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 2","pages":"4-4"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11440041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558052","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":"IEEE Electrical Insulation Magazine March April 2026 Table of Contents","authors":"","doi":"10.1109/MEI.2026.11440087","DOIUrl":"https://doi.org/10.1109/MEI.2026.11440087","url":null,"abstract":"","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"42 2","pages":"1-1"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11440087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557763","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}