From the Editor

IF 1.3 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Electrical Insulation Magazine Pub Date : 2025-12-19 DOI:10.1109/MEI.2026.11306288

Tony Lujia Chen

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引用次数: 0

Abstract

This issue includes three articles, the first titled “New Categories for Phase-Resolved Partial Discharge Pattern Classification,” by Contin, Piccolo, and Cavallini. It presents a refined framework for analyzing phase-resolved partial discharge (PRPD) patterns in insulation diagnostics. The study questions the traditional one-to-one link between PRPD shapes and defect types, proposing three new categories: voltage-dependent, multiple, and ambiguous patterns. This is to better represent the changing nature of discharge phenomena. By testing insulation systems rated between 4 and 18 kV, including porous tape insulation and four-layer mica tapes, the authors show how PRPD patterns develop under different voltage levels, aging conditions, and stress factors. Examples include distributed micro-void discharges that change from “rabbit-ear” to rounded shapes, symmetric in polarity and phase. The article emphasizes the limitations of relying only on pattern shape for diagnosis and recommends additional localization techniques such as antenna probes and ultrasound detectors. This work is especially valuable for those seeking to improve the reliability of insulation evaluation and develop more advanced pattern-recognition systems for rotating electrical machines.

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来自编辑

本期包括三篇文章，第一篇题为“相位分解局部放电模式分类的新类别”，作者是Contin、Piccolo和Cavallini。它提出了一个精细的框架来分析相分辨局部放电（PRPD）模式在绝缘诊断。该研究质疑传统的PRPD形状和缺陷类型之间一对一的联系，提出了三个新的类别：电压依赖性，多重和模糊模式。这是为了更好地表现放电现象的变化性质。通过测试额定在4至18 kV之间的绝缘系统，包括多孔带绝缘和四层云母带，作者展示了PRPD模式在不同电压水平、老化条件和应力因素下的发展情况。例如，分布式微孔放电从“兔耳”形状变为圆形，极性和相位对称。文章强调了仅依靠模式形状进行诊断的局限性，并推荐了额外的定位技术，如天线探针和超声探测器。这项工作对于那些寻求提高绝缘评估可靠性和开发更先进的旋转电机模式识别系统的人尤其有价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Electrical Insulation Magazine 工程技术-工程：电子与电气

CiteScore

4.60

自引率

3.40%

发文量

121

审稿时长

>12 weeks

期刊介绍： The EI Magazine publishes articles written by authors from industry, research institutes and academia. The articles are more practical in content than the papers published in the Transactions. Usually three articles are published in each issue. The articles deal with dielectric materials, processes and new developments applied to industry products. Also the EI Magazine is used to promote upcoming conferences and solicits papers for the conferences. In addition, reports on past conferences are given in many issues. Book reviews and news items are included. An editorial is written by both the EIC and the President of DEIS in alternate issues. Advertising of insulation products appears in many issues.