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Effect of Surface Charge on Flashover Phenomena-A Dynamic Observation Using a 220 kV Cone Spacer
ID：541 View Protection：ATTENDEE Updated Time：2022-09-12 22:08:17 Hits：305 Poster Presentation

Start Time：Pending（Asia/Shanghai）

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Abstract
The surface charge accumulation on spacers inside GIL distorts local surface electric field, and the change in local surface electric field may influence the flashover phenomena. In this paper, the effect of surface charge properties on the flashover arc path are studied using a 220 kV spacer subjected to operating overvoltage. The flashover arc path over the spacer under impulse voltage were directly observed. The results showed that the arc path is away from the surface when homopolar charge is deposited, while the arc path sticks to the spacer surface when the surface is predeposited with heteropolar charge.
Keywords
DC GIS;surface charge;flasover
Speaker
Weijian Zhuang
Tsinghua University

Submission Author
Weijian Zhuang Tsinghua University
Fangwei Liang Tsinghua University
Zuodong Liang Tsinghua University
Chuanjie Lin Tsinghua University
Lingling Tang Jiangsu Jinxin Electric Appliance Co. Ltd
Yulin Zeng Jiangsu Jinxin Electric Appliance Co. Ltd
Bo Zhang Tsinghua University
Chuanyang Li Tsinghua University
Jinliang He Tsinghua University
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  • Conference Date

    Sep 25

    2022

    to

    Sep 29

    2022

  • Aug 15 2022

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  • Sep 10 2022

    Contribution Submission Deadline

  • Nov 10 2022

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  • Nov 30 2022

    Draft paper submission deadline

  • Nov 30 2022

    Final Paper Deadline

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IEEE DEIS
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Chongqing University
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