空气绝缘变电站隔离开关电弧电阻对暂态的影响

2007 IEEE 34th International Conference on Plasma Science (ICOPS) Pub Date : 2007-06-17 DOI:10.1109/PPPS.2007.4652549

S. Carsimamovie, Z. Bajramovic, M. Veledar, M. Ljevak, A. Carsimamovic, P. Osmokrović

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引用次数: 1

摘要

介绍了空气绝缘变电站中由隔离开关引起的开关过电压。通过对国有企业电力公司220千伏开关站的试验和计算研究，给出了开关过电压的形态和水平。分析了隔离器触点间电弧电阻的影响。利用EMTP-ATP进行了计算机模拟。测量值与计算值的过电压因数差值在4.52%以下，过电压波频率差值在2.56%以下。暂态计算机模拟与现场测量结果的对比表明，计算结果可用于隔离开关引起的暂态过电压的评估。

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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Influence of Resistance of Electric Arc on Transients Due to Disconnector Switching in Air-Insulated Substations

Switching overvoltages due to disconnector switching in air-insulated substations are presented. Shapes and levels of switching overvoltages by means of experimental and computing investigations on 220 kV switchyards of Public Enterprise Elektroprivreda Bill are presented. The influence of resistance of electric arc between the contacts of disconnector is analysed. Computer simulations by means of EMTP-ATP are performed. Differences between the measured and the calculated values were under 4.52% for overvoltage factor, and under 2.56% for overvoltage wave frequency. Comparison of the transient computer simulations with the field measurements showed that calculations could be used for assessment of the transient overvoltages caused by disconnector switching.

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2007 IEEE 34th International Conference on Plasma Science (ICOPS)

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