Numerical Simulation of Residual Voltage Monitoring Device for 220kV Metal Oxide Arresters

2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST) Pub Date : 2019-10-01 DOI:10.1109/ICEPE-ST.2019.8928815

Guanghui Yu, Yongxing Wang, Hao Zhu, Enyuan Dong, Hanbing Li, Guannan Liu, Renhan Liu

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引用次数: 1

Abstract

In long-term operation, the metal oxide arrester is prone to malfunction due to improper maintenance. It reduces the protection capability to power system. In this paper, a new topology is proposed. It can effectively solve the existing problems of metal oxide arresters in transmission lines. The three-dimensional axisymmetric model of metal oxide arrester and its residual voltage monitoring device is established in the finite element software. The characteristics of metal oxide arrester are simulated and calculated. By adjusting the distance between ceramic capacitive core sensor and metal oxide arrester and its capacitance value, the electric field and potential distribution of metal oxide arrester are calculated. In normal operation, the whole topological structure is simulated and calculated. The results show that the topological structure of metal oxide arresters residual voltage monitoring device can effectively improve the electric field and potential distribution of metal oxide arresters. In normal operation, it can effectively reduce the loss of metal oxide arrester. The operational life of metal oxide arresters can be improved.

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220kV金属氧化物避雷器残余电压监测装置的数值模拟

金属氧化物避雷器在长期运行中，由于维护不当，容易发生故障。降低了对电力系统的保护能力。本文提出了一种新的拓扑结构。它能有效地解决输电线路中存在的金属氧化物避雷器问题。在有限元软件中建立了金属氧化物避雷器及其残余电压监测装置的三维轴对称模型。对金属氧化物避雷器的特性进行了仿真计算。通过调整陶瓷电容铁芯传感器与金属氧化物避雷器之间的距离及其电容值，计算出金属氧化物避雷器的电场和电位分布。在正常运行情况下，对整个拓扑结构进行仿真计算。结果表明，金属氧化物避雷器残余电压监测装置的拓扑结构可以有效改善金属氧化物避雷器的电场和电位分布。在正常运行时，可有效降低金属氧化物避雷器的损耗。可以提高金属氧化物避雷器的使用寿命。

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

2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)

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