ORIGINAL RESEARCH article
Front. Phys.
Sec. Interdisciplinary Physics
Volume 13 - 2025 | doi: 10.3389/fphy.2025.1595410
This article is part of the Research TopicGas Discharge and Dielectrics InsulationView all 5 articles
Aging Monitoring and Fault Positioning for Zinc Oxide Surge Arresters Based on the Fifth Harmonic of the Leakage Current
Provisionally accepted
- State Grid Jiangsu Electric Power Co., LTD, Nanjing, China
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This study proposes a novel method for aging monitoring and fault positioning for metal oxide surge arresters based on the fifth harmonic of the resistive leakage current (IR5th). Initially, an aging experimental platform for zinc oxide surge arresters was established, with voltage harmonics control groups set up and experiments conducted. Subsequently, the harmonic characteristics of the leakage current were extracted using an improved displacement current method and a fast Fourier transform algorithm. The characteristics of IR5th were analyzed through percentage changes in features and harmonic sensitivity. Finally, by integrating high-precision current sensor technology with GPS positioning, a principle method was proposed for applying IR5th to fault monitoring and positioning for zinc oxide surge arresters.
Keywords: leakage current, third harmonic of resistive current, fifth harmonic of the resistive current, aging monitoring and positioning zinc oxide surge arresters, aging monitoring and positioning
Received: 18 Mar 2025; Accepted: 28 May 2025.
Copyright: © 2025 Yongling, Zhitong, Jiahao, Chenyu, Jian, Xiaolong and Jian. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Lu Yongling, State Grid Jiangsu Electric Power Co., LTD, Nanjing, China
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