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.
出处
《高压电器》
CAS
CSCD
北大核心
2015年第8期114-118,共5页
High Voltage Apparatus
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
high voltage circuit breakers
opening/closing coil current
defect diagnosis
first opening / closing operation
testing method
