Study on metal particle adhesion and discharge characteristics on GIS insulator under power frequency voltage
Abstract Gas Insulated Switchgear (GIS) is widely used in high-voltage transmission for its compact size and reliability. However, higher grid voltages and capacities have increased internal GIS faults, threatening operational stability. This study models GIS insulator surface defects using equivalent metal particles and analyzes partial discharge (PD) voltage distribution via the pulse current method. Results show PD occurs more readily near high-voltage regions and accelerates with higher voltages. By simulating metal particle motion in AC GIS, the landing probability on insulators is determined. Combining particle landing points with surface PD inception voltage, the highest insulation risk occurs at a normalized distance of 0.9.
Authors
- Weiwei Wu (ORCID: https://orcid.org/0000-0002-1872-6382)
- Weifeng Xin (ORCID: https://orcid.org/0000-0002-9886-184X)
- Zhenyu Zhan (ORCID: https://orcid.org/0000-0001-7208-562X)
- Yuan Xu (ORCID: https://orcid.org/0000-0001-9589-6046)
- Deying Ma
- Haibo Jiang
- Taiyu Chen (ORCID: https://orcid.org/0000-0003-4729-7465)
- Dong Wang (ORCID: https://orcid.org/0000-0001-8742-4444)
- Manling Dong (ORCID: https://orcid.org/0000-0002-0191-183X)
Institutions
- Electric Power Research Institute (US)
- North China Electric Power University (CN)
- State Grid Corporation of China (China) (CN)
- North China University of Water Resources and Electric Power (CN)
- Henan Energy & Chemical Industry Group (China) (CN)
- PowerChina (China) (CN)
- China Electric Power Research Institute
Publication Details
- Journal
- Journal of Physics Conference Series
- Published
- 2025-08-01
- DOI
- https://doi.org/10.1088/1742-6596/3079/1/012025
- Primary Topic
- High voltage insulation and dielectric phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00