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高压电器  2015 

基于千安级冲击电流的GIS电接触特性状态评估研究

DOI: 10.13296/j.1001-1609.hva.2015.09.009, PP. 49-54

Keywords: 导电连接件, 回路电阻, 超级电容器, 冲击电流, 电接触, 状态评估

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Abstract:

为了准确测量并评估GIS导电连接件的电接触状态,针对基于超级电容器产生的千安级冲击电流测量导电连接件回路电阻的测试方法,提出依据回路电阻随测试电流增长的变化率大小来判断GIS触头电接触状态是否良好的评估判据。利用该方法对多种典型标准的GIS导电杆进行多触头串联验证试验以及GIS变电站现场验证试验。试验结果表明,基于千安级冲击电流的GIS电接触状态的评估方法具有可行性和有效性,比传统直流压降法更能反应导电连接件触头的电接触特性。

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