Influence of Spacer on the Movement Law of Free Metal Particles in GIS

2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2021-10-09 DOI:10.1109/REPE52765.2021.9616981

Jingtan Ma, Ke Zhao, Hongtao Li, Yujie Li, Yongfei Liu, Hanyan Xiao

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引用次数: 3

Abstract

When GIS during manufacturing, transportation, installation, and operation, metal particles will inevitably be generated due to mechanical friction. The existence of metal particles poses a huge threat to the insulation performance of GIS. The previous research on free metal particles in GIS mainly focused on the force analysis of the two-dimensional radial plane particle movement, ignoring the influence of the spacer on the axial movement of the particles. In this paper, by establishing a three-dimensional simulation model with spacers, the influence of spacers on particle axial electric field distribution is studied. Based on the analysis of the force of two-dimensional radial plane particles, the influence of axial electric field on particle movement is further studied. The results show that the direction of the electric field on the concave side of the spacer is directed from the spacer to one end of the pipeline, and the particles are subjected to the axial electric field force directed to the spacer. The particles are finally mainly concentrated near the spacer. The actual GIS experiment platform was taken to verify the simulation calculation results.

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隔层对GIS中游离金属颗粒运动规律的影响

GIS在制造、运输、安装、运行过程中，由于机械摩擦不可避免地会产生金属颗粒。金属颗粒的存在对地理信息系统的绝缘性能构成了巨大的威胁。以往GIS中对自由金属颗粒的研究主要集中在二维径向平面颗粒运动的受力分析上，忽略了间隔物对颗粒轴向运动的影响。本文通过建立带间隔层的三维仿真模型，研究了间隔层对颗粒轴向电场分布的影响。在分析二维径向平面颗粒受力的基础上，进一步研究了轴向电场对颗粒运动的影响。结果表明:在隔离器凹侧的电场方向由隔离器指向管道一端，颗粒受到指向隔离器的轴向电场力;粒子最终主要集中在间隔器附近。采用实际的GIS实验平台对仿真计算结果进行验证。

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 4th International Conference on Renewable Energy and Power Engineering (REPE)

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