基于分合闸线圈电流的断路器缺陷诊断及试验方法研究  

Mechanical Defect Diagnosis and Testing Method of High Voltage Circuit Breakers Based on Opening/Closing Coil Current Parameters

作　　者：李大卫[1] 徐党国[1] 孙云生 崔贺平[1] 

机构地区：[1]华北电力科学研究院有限责任公司,北京100045 [2]国网冀北电力有限公司,北京100053

出　　处：《高压电器》2015年第8期114-118,共5页High Voltage Apparatus

摘　　要：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。The opening/closing coil is a key component of high voltage circuit breaker＇s operating mechanism. The authors analyze the relationship between the current waveform of breaker opening/closing coil and the mechanical defects, extract the key characteristics of the coil current waveform, and hence establish a diagnosis criterion for typical mechanical defects of circuit breaker. This diagnosis method is verified on a simulation test platform in laboratory. Further, the coil current test method of circuit breaker for first opening/closing operation＂is put forward.

关 键 词：断路器 分/合闸线圈电流 缺陷诊断 首次分/合闸 试验方法 

分 类 号：TM561[电气工程—电器]