Effect of various design parameters on the performance of Gas Insulated Substations (GIS) using Charge Simulation Method

2011 Annual IEEE India Conference Pub Date : 2011-12-01 DOI:10.1109/INDCON.2011.6139569

K. Subrahmanyam, J. Amarnath

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引用次数: 1

Abstract

The Insulation Performance of Compressed Gas Insulated Switchgear and Gas Insulated Transmission Line(GITL) systems can be substantially affected by the presence and movement of metallic particle contaminants. SF6 gas is the main mode of insulation in Gas Insulated Substations(GIS). The voltage withstanding capability of SF6 bus duct is strongly dependent on field perturbations. A method based on particle motion is proposed for determining the movement pattern of metallic particle in Gas Insulated Bus duct(GIB) by considering all the forces acting on the particle like gravitational, drag and the electric field forces. In this work, a single phase of GIB with inner and outer diameter to 55mm and 152mm is considered for the analysis and compared with a single phase enclosure with inner diameter of 70mm and outer diameter of 190mm. Electric fields at the instantaneous contaminated particle locations were computed using Charge Simulation Method (CSM). The simulation carried out for various bus configurations with aluminum, copper and silver wire like particles inside 100KV, 132KV, 145KV and 175KV class enclosure of GIB. The results of the simulation have been presented and analyzed in this paper.

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用电荷模拟方法研究不同设计参数对气体绝缘变电站性能的影响

压缩气体绝缘开关设备和气体绝缘传输线(GITL)系统的绝缘性能会受到金属颗粒污染物的存在和移动的实质性影响。SF6气体是气体绝缘变电站(GIS)的主要绝缘方式。SF6母线管的耐压能力与场扰动密切相关。提出了一种基于粒子运动的方法，通过考虑重力、阻力和电场力等作用于金属粒子的力，确定金属粒子在气体绝缘母线管道中的运动规律。本文选取内径为55mm、外径为152mm的单相GIB进行分析，并与内径为70mm、外径为190mm的单相机箱进行对比。利用电荷模拟方法(CSM)计算了污染粒子瞬时位置的电场。对GIB 100KV、132KV、145KV、175KV级外壳内铝、铜、银线样颗粒的各种母线配置进行了仿真。本文给出了仿真结果并进行了分析。

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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2011 Annual IEEE India Conference

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