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As global focus turns to the green economy, the challenges that are presented to manufacturers of rotating machinery and insulation material can be daunting. The application of traditional standards and materials to the new applications and rotating machinery designs will, and have, resulted in serious equipment reliability and monitoring problems. A whole new approach is required for practical applications

Presents letter to the editor for this issue of the publication.

This article presents analysis of the dielectric dissipation factor over a collection of more than 20,000 measurement records of new stator bars and coils.

In the second part of this review, the chemical properties of all known fracture modes of suspension composite insulators are summarized; a novel criterion for discerning fracture mode is proposed.

The article elucidates the necessity for testing of material compatibility and the consequences when this is not done correctly. Recommendations for compatibility testing procedures on the basis of long-term experience with practical examples of their implementation are described.

In the News from Japan column in the March/April 2021 issue [1], a brief introduction of the Ninth International Symposium on Electrical Insulating Material (ISEIM) was described. It was also described that the $Q(t)$ method developed by Prof. Tatsuo Takada of Tokyo City University had been introduced in a seminar taking place in the Ninth ISEIM. As mentioned in that column, the principle of the $Q(t)$

The following seven books are reviewed: Handbook of Large Hydro Generators: Operation and Maintenance (Mottershead, G., et al; 2021); Heat Transfer—Principles and Applications (Forsberg, C.H.; 2021); Renewable Energy in Power Systems (Infield, D. and Freris, L.; 2020); Noise in Radio-Frequency Electronics and Its Measurement (Fouquet, F.; 2020); Polymers in Organic Electronics (Khalifeh, S.; 2020);

Presents the DEIS calendar of upcoming events and meetings.

Sustainable mobility is crucial for achieving the 2030 Agenda for Sustainable Development and its Sustainable Development Goals. The features of sustainable mobility are both societal and technical (see Figure 1). Transport electrification plays a key role in achieving green and efficient mobility. IEEE acted swiftly on this point and established in 2011 a Transport Electrification (TE) community that

Prospective authors are requested to submit new, unpublished manuscripts for inclusion in the upcoming event described in this call for papers.

Presents information on upcoming DEIS society conferences and meetings.

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When first news reports of a novel Coronavirus, called SARS-CoV-2, spread around the globe not much more than a year ago, not many of us took notice. In the following months it was emails and calls from students, colleagues, and friends in the affected regions that made us aware of the scale of what was emerging. Much has changed since then, our personal lives have been turned upside down, travel has

Presents the introductory editorial for this issue of the publication.

In this first part of a review on high voltage composite suspension insulators, the fracture morphology characteristics of all known fracture modes including normal fracture, brittle fracture, and decay-like fracture are discussed.

This article reviews the history of thermal aging studies of rotating machine insulation, describes how the thermal classes are determined, and identifies some issues with the process that often are not fully understood.

In this article, switchgear standards, failure statistics, and condition assessment methods with a special focus on medium and high voltage classes are critically reviewed.

In 2020 a new virus that cause a disease called COVID-19 suddenly appeared and caused a pandemic all over the world, forcing people to lead a daily life they had never experienced before. Office workers must now work at home and students must take remote classes. Meetings and sales activities are now also done through remote connections. People have been forced to rely on online shopping to buy everyday

The following six books are reviewed: Optical Engineering Science (Rolt, S.; 2020); LPWAN Technologies for IoT and M2M Applications (Chaudhari, B.S. and Zennaro, M., Eds.; 2020); Advances in Modern Sensors: Physics, Design, Simulation and Applications (Sinha, G.R.l 2020); Handbook of Magnetic Materials, Volume 29 (Bruck, E., Ed., 2020); Contact Lines for Electrical Railways—Planning, Design, Implementation

Presents the EDS calendar of upcoming events and meetings.

Recounts the career and contributions of Bruce Bernstein.

Reports on news of interest to EDS society members.

Presents information on the EDS society 4-Day Summer School on Extra-High-Voltage DC Transmission.

Presents the recipients of the 2021 IEEE DEIS Eric O. Forster Distinguished Service Award.

Presents the table of contents for the IEEE Transactions on Dielectrics and Insulation

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These instructions give guidelines for preparing papers for this publication. Presents information for authors publishing in this journal.

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For application in harsh environmental conditions, printed circuit boards (PCB) are usually coated with a protective polymer typically of a 50-µm thickness that provides electrical insulation.

Usability of a new Direct Current Periodic waveform for partial discharge qualification in HVDC systems is exemplified by tests performed on different materials.

Investigations, through a sample evaluation, aiming to evaluate the cause of the high-frequency oscillations presented by distribution transformers in impulse tests reveal that internal imperfections, such as cavities and floating particles, cause these oscillations.

Due to the spread of COVID-19 throughout the world, almost all academic conferences have been forced to change their meeting styles. Although some were canceled or postponed, many conferences were held with the help of IT technologies. The ninth International Symposium on Electrical Insulating Materials (ISEIM 2020) was also held online from September 13 to 25, 2020, including an extended discussion

The following seven books are reviewed: Wireless Connectivity: An Intuitive and Fundamental Guide (Popovski, P.; 2020); Analysis of Grounding and Bonding Systems (Mitolo, M.; 2020); The Fundamentals and Applications of Light Emitting Diodes—The Revolution in the Lighting Industry (Nair, G.B. and Dhoble, S.J.; 2020); Optical Properties of Materials and Their Applications, 2nd Edition (Singh, J., Ed);

Provides a listing of upcoming events of interest to practitioners and researchers.

The prehistory of electrets is not known yet, but it is quite likely that the electrostatic charging behavior of amber (Greek: τò ηλεκτρoν, i.e., “electron”) already was familiar to people in ancient cultures (China, Egypt, Greece, etc.), before the Greek philosopher and scientist Thales of Miletus (6th century BCE)-or rather his disciples and followers-reported it in writing (cf. Figure 1). More than

Recounts the career and contributions of Jitka Fuhr Aschwanden.

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Advertisement: TechRxiv is a free preprint server for unpublished research in electrical engineering, computer science, and related technology. TechRxiv provides researchers the opportunity to share early results of their work ahead of formal peer review and publication. Benefits: Rapidly disseminate your research findings; Gather feedback from fellow researchers; Find potential collaborators in the

IEEE Electrical Insulation Magazine is involved, together with its sponsoring society, the Dielectrics and Electrical Insulation Society (DEIS), in providing leadership, coordination, and communication among those who are concerned with dielectric phenomena and measurements and with electrical insulating materials, including their behavior as it affects their use in electrical and electronic apparatus

This article provides an overview of research on SF6 replacement gases for electric power equipment, of existing SF6-free technologies, and of worldwide developments in legislation to support these new technologies.

This article demonstrates principles and advantages of PWM voltage source design that allow the minimization of stress imposed on electric machine windings.