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高压电器  2014 

气体分解产物和局部放电测试技术在SF_6电气设备状态诊断中的应用

, PP. 121-125

Keywords: SF6电气设备, 状态诊断, SF6气体分解产物测试, 局部放电测试,潜伏性故障

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Abstract:

主要介绍了SF6气体分解产物、局部放电测试这2种检测技术在SF6电气设备状态诊断中的几起成功应用的案例。这些案例各有特点SF6气体分解产物异常但不存在局部放电信号;SF6气体分解产物正常但存在局部放电信号;SF6气体分解产物异常且存在局部放电信号;SF6气体分解产物异常但无法采用局部放电测试技术进行检测。通过解体,均验证了设备存在缺陷。因此,SF6气体分解产物、局部放电测试技术在SF6电气设备潜伏性故障诊断方面具有广阔的应用前景。

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