An Investigation of Dust Deposition Patterns and Electric Field Distortion on Insulators Based on Finite Element Simulation.
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| Title: | An Investigation of Dust Deposition Patterns and Electric Field Distortion on Insulators Based on Finite Element Simulation. |
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| Authors: | Lyu, Fangxing1 (AUTHOR) lvfangxing@xsyu.edu.cn, Yang, Jun1 (AUTHOR), Ding, Jian2 (AUTHOR), Su, Liangzhi2 (AUTHOR), Fang, Xin3 (AUTHOR), Shen, Lan3 (AUTHOR), Mishra, Pramita (AUTHOR) pmishra@wiley.com |
| Source: | International Transactions on Electrical Energy Systems. 7/12/2026, Vol. 2026, p1-10. 10p. |
| Subject Terms: | *Dust, Contact angle, Finite element method, Electric distortion, Flashover, Electric power system protection, Electric insulators & insulation |
| Abstract: | In dust‐prone regions such as Northwest China, dust accumulation on insulators distorts the electric field, which is a key cause of flashovers and performance degradation. However, existing studies have mainly focused on the chemical properties of contaminants or equivalent salt deposit density. As a result, the physical mechanism by which the geometric morphology of dust deposits independently affects the electric field distribution remains poorly understood. To address this gap, this study employs finite element simulation to systematically investigate the contact angle θ at the dust–insulator interface as a key geometric parameter governing electric field distortion. An electrostatic field model of the XP‐70 disc‐type suspension insulator was established to simulate and analyze electric field distributions under different dust accumulation morphologies. Findings indicate that when θ approaches 90°, severe electric field distortion occurs in the contact region; conversely, when θ approaches 0° or 180°, the electric field distribution becomes more uniform with significantly reduced distortion. This study provides a quantitative analysis of the correlation between contact angle and electric field distortion in dust accumulation patterns, offering a new perspective on the distortion mechanism caused by dust contamination. It offers a potential theoretical basis for antiflashover design and structural optimization of insulators in severe dust environments, holding significant value for ensuring power grid operational safety. [ABSTRACT FROM AUTHOR] |
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| Database: | GreenFILE |
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| Abstract: | In dust‐prone regions such as Northwest China, dust accumulation on insulators distorts the electric field, which is a key cause of flashovers and performance degradation. However, existing studies have mainly focused on the chemical properties of contaminants or equivalent salt deposit density. As a result, the physical mechanism by which the geometric morphology of dust deposits independently affects the electric field distribution remains poorly understood. To address this gap, this study employs finite element simulation to systematically investigate the contact angle θ at the dust–insulator interface as a key geometric parameter governing electric field distortion. An electrostatic field model of the XP‐70 disc‐type suspension insulator was established to simulate and analyze electric field distributions under different dust accumulation morphologies. Findings indicate that when θ approaches 90°, severe electric field distortion occurs in the contact region; conversely, when θ approaches 0° or 180°, the electric field distribution becomes more uniform with significantly reduced distortion. This study provides a quantitative analysis of the correlation between contact angle and electric field distortion in dust accumulation patterns, offering a new perspective on the distortion mechanism caused by dust contamination. It offers a potential theoretical basis for antiflashover design and structural optimization of insulators in severe dust environments, holding significant value for ensuring power grid operational safety. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 20507038 |
| DOI: | 10.1155/etep/5526613 |
