高压电器2018，Vol.54Issue(8)：7-14,8.DOI:10.13296/j.1001-1609.hva.2018.08.002
隔雨伞对淋雨状态下复合支柱绝缘子电场的影响
Study on the Water-cut Shed's Influence on the Electric Field of Composite Post Insulators Under Wet Condition
摘要
Abstract
The flashover of post insulators in rainy weather is an important factor affecting the safety of the power grid. For the insulator in operation, installing water-cut sheds is the most effective measures to improve the anti-rain flashover ability. To explore the selection method of water-cut sheds' parameters, this paper uses the finite element method to establish a composite post insulator model with water-cut sheds to study the electric field distribution influenced by the number of sheds and the overhangs. The field strength of the surface of the sheds and the field strength of air gap were proposed as the criterion for selecting water-cut sheds parameters. The results show that installing water-cut sheds will make the field strength of the air gap between the nearby big sheds and the nearby small sheds stronger, and water-cut sheds' field strength will be stronger. According to the relationship between the field strength of surface and air gap, using the electric field of air gap as the criterion is recommended. This paper has certain guiding significance for the installation of water-cut sheds and the measures of preventing wet flashover.关键词
复合支柱绝缘子/淋雨/有限元法仿真/隔雨伞数量/隔雨伞伸出Key words
composite post insulator/rain condition/simulation by finite element method/number of water-cut sheds/overhangs of water-cut sheds引用本文复制引用
谭傲,廖一帆,阳林,王振华,郝艳捧,张福增,李立浧..隔雨伞对淋雨状态下复合支柱绝缘子电场的影响[J].高压电器,2018,54(8):7-14,8.基金项目
国家自然科学基金 (51507067) （51507067）
南方电网公司科技项目 (CSGTRC-K163024).Project Supported by National Natural Science Foundation of China(51507067),Science and Technology Project of CSG (CSGTRC-K163024). （CSGTRC-K163024）
