To read this content please select one of the options below:

Flashover of insulation materials induced by electrostatic electromagnetic pulse

Yan Zhang (School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, China)
Xianghu Ge (School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, China)
Xin Zhao (School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, China)
Xiaorui Yang (School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, China)
Shanghe Liu (National Key Laboratory of Strong Electromagnetic Environmental Effects, Shijiazhuang Campus of Army Engineering University, Shijiazhuang, China, and)
Jingjing Xuan (School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, China)

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering

ISSN: 0332-1649

Article publication date: 30 August 2022

Issue publication date: 12 January 2023

24

Abstract

Purpose

The purpose of this paper is to research the induced flashover laws of different insulation materials under electrostatic electromagnetic pulse, and the induced flashover characteristics of different electrode structures are further explored.

Design/methodology/approach

According to standard IEC 61000–4-2, an experimental system of electrostatic electromagnetic pulse flashover for insulation materials is established. The induction flashover laws of polytetrafluoroethylene, epoxy resin and polymethyl methacrylate surface-mounted finger electrodes under the different intensity of electrostatic electromagnetic pulse are researched. The influence of the finger electrode, needle–needle electrode and needle–plate electrode on insulation flashover was compared. Secondary electron emission avalanche (SEEA) and field superposition theory are used to analyze the experimental results of electrostatic electromagnetic pulse induced flashover.

Findings

The larger the dielectric strength of insulation materials, the more difficult flashover occurs on the surface. The field superposition enhances collision ionization between electrons and gas molecules, which leads to the insulation materials surface induced flashover easily by electrostatic electromagnetic pulse. The sharper the electrode shapes on the insulation materials surface, the stronger the electric field intensity at the cathode triple junction, more initial electrons are excited to form the discharge channel, which easily leads to flashover on the surface of the insulating material.

Originality/value

The proposed field superposition combined with the SEEA method provides a new study perspective and enables a more rational, comprehensive analysis of electrostatic electromagnetic pulse induced flashover of insulation materials. The work of this paper can provide a reference for the safety protection of spacecraft in orbit under a strong electromagnetic field environment, increase the service life of spacecraft and improve the reliability of spacecraft’s safe operation in orbit. It provides a basis for the selection of insulation materials for equipment under the different intensities of the external electromagnetic environment.

Keywords

Acknowledgements

The authors acknowledge the Scientific Research Program of Higher Education in Hebei Province (Grant No. ZD2021202) and Natural Science Foundation of Hebei Province (Grant No. E2019208443).

Citation

Zhang, Y., Ge, X., Zhao, X., Yang, X., Liu, S. and Xuan, J. (2023), "Flashover of insulation materials induced by electrostatic electromagnetic pulse", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 42 No. 1, pp. 169-180. https://doi.org/10.1108/COMPEL-02-2022-0085

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

Related articles