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高压电器  2015 

基于分合闸线圈电流的断路器缺陷诊断及试验方法研究

DOI: DOI:10.13296/j.1001-1609.hva.2015.08.019, PP. 114-118

Keywords: 断路器,分/合闸线圈电流,缺陷诊断,首次分/合闸,试验方法

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Abstract:

分合闸线圈是断路器操作机构的关键部件。笔者通过深入研究断路器分/合闸线圈电流波形与机械缺陷之间的关系,提取线圈电流波形中的关键特征量,建立其与断路器常见典型机械缺陷的诊断判据,并通过实验室断路器缺陷模拟试验平台进行验证。基于研究结果,提出在国内开展断路器“首次分/合闸”时线圈电流检测试验的具体实施方案并进行风险评估,通过试验提前发现断路器机械方面存在的缺陷,有效指导国内电网断路器设备状态检测策略。

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