MATEC Web Conf.
Volume 356, 20222022 2nd International Conference on Advanced Energy, Power and Electrical Engineering (AEPEE2022)
|Number of page(s)||7|
|Published online||14 March 2022|
Cause analysis and simulation verification of a 220kV GIS basin insulator along surface discharge
Electric Power Research Institute of Guizhou Power Grid Grid Co., Ltd., Guiyang, Guizhou 213022, China;
2 Electric Power Research Institute of Southern Power Grid Company Limited Co., Ltd., Guangzhou 510000 Guangdong, China
* Corresponding author: firstname.lastname@example.org
A surface discharge fault of 220kV GIS basin insulator during power transmission has been analyzed. Combined with on-site disassembly inspection, data from previous tests and structural design, the fault point is determined and the fault cause is preliminarily analyzed. In order to verify the correctness of the analysis results, this paper uses the finite element method to mathematically model the accident basin insulator, and formulates the boundary conditions for the calculation of the electric field inside the basin insulator. The simulation results show that there is a distorted electric field on the surface of the basin insulator, which is the main reason for creeping discharge. The preventive measures are summarized for the creeping discharge fault of the basin-type insulator to avoid the occurrence of similar accidents.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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