基于故障模式与后果分析及故障树法的电子式电流互感器可靠性分析  

Analysis on Reliability of Electronic Current Transformer Based on Failure Modes,Effects Analysis and Fault Tree Analysis

作　　者：王鹏[1] 张贵新[1] 朱小梅[1] 罗承沐[1] 顾立华[2] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京市海淀区100084 [2]长庆石油勘探局水电厂水电研究所,甘肃省庆阳市712000

出　　处：《电网技术》2006年第23期15-20,共6页Power System Technology

摘　　要：可靠性分析是电子式互感器研制中的关键环节。在与电磁式电流互感器的可靠性进行对比分析的基础上,分别采用故障模式与后果分析法(failuremodesandeffectsanalysis,FMEA)和故障树分析法对一种电子式电流互感器的可靠性进行了研究,建立了完善的FMEA表格和故障树。求取了故障树的所有最小割集,并对该电子式电流互感器的可靠性进行了定性分析。通过电子式电流互感器研制与试验过程中的实例分析,验证了该可靠性分析方法的有效性。Reliability analysis is the key procedure during the development of electronic current transformer （ECT）. On the basis of the contrastive analysis on reliability of electromagnetic current transformers, by means of failure modes and effects analysis （FMEA） as well as fault tree analysis （FTA） the reliability of a kind of electronic current transformer is researched, and perfect worksheets of both FMEA and FTA are established. All of minimum cut sets of fault trees are found out and the qualitative analysis on the reliability of the ECT is conducted. The effectiveness of the presented reliability analysis method is verified by the results of the analysis on two practical examples during the development and test process of the ECT.

关 键 词：电子式电流互感器 可靠性分析 故障模式与后果分析 故障树分析 最小割集 

分 类 号：TM452[电气工程—电器]