Study on surface electric field distribution of jumper in 220 kV tension tower

2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Pub Date : 2021-12-12 DOI:10.1109/CEIDP50766.2021.9705403

Lijuan Zhu, Xi Yang, Shaorui Qin, Xuhai Zhan, Li Yang, Yezhi Wu

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Abstract

The function of jumper is to connect the tension clamps on both sides of the strain tower, so that the live wire can keep enough electrical distance from the conductive part of the tower. However, because of the complex structure of jumper, the surface electric field is easy to be distorted. It is of great significance for high voltage AC transmission lines to analyze and study the surface electric field distribution of jumpers and suppress corona discharge. In order to study the surface electric field distribution of jumpers, we used the finite element method and the 3D finite element analysis software ANSYS to model, simulated and calculated the surface electric field distribution of the 220 kV tension tower jumpers. We simulate and calculate the surface electric field distribution of 220 kV tension tower jumper, and compare and analyze the influence of split spacing, cross-sectional area, split number, single and double circuits and phase sequence on the surface electric field intensity of jumper.

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220kv张力塔跳线表面电场分布的研究

跳线的作用是将应变塔两侧的张力夹连接起来，使火线与塔的导电部分保持足够的电距离。但由于跳线结构复杂，表面电场容易发生畸变。分析研究高压交流输电线路跳线表面电场分布，对抑制电晕放电具有重要意义。为了研究跳线的表面电场分布，采用有限元法和三维有限元分析软件ANSYS对220kv张力塔跳线的表面电场分布进行了建模、仿真和计算。模拟计算了220 kV张力塔跳线的表面电场分布，比较分析了分岔间距、截面积、分岔数、单双路和相序对跳线表面电场强度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

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