停堆断路器停堆动作可靠性分析  

Analysis of Shutdown Operation Reliability of Reactor Trip Breaker

作　　者：李洪伟[1] 孙宇[1] 郑晓[1] 

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610041

出　　处：《核动力工程》2013年第S1期168-171,共4页Nuclear Power Engineering

摘　　要：利用故障树方法分析不同结构停堆断路器的停堆动作误动和拒动故障。分析中充分考虑了拒动这一安全故障类型对停堆动作的影响。分析结果表明,停堆断路器2/4类型2结构的拒动率和可靠度指标优于其他结构,停堆断路器拒动的改善措施应侧重于停堆驱动信号拒动率的减小。Both anti-operation probability and mal-operation probability with different structures used in shutdown reactor trip breaker are analyzed by failure-tree method.In the analysis,mal-operation probability,which is crucial for reactor safety,is especially considered to analyze the effect of shutdown operation reliability of reactor trip breaker.Results indicate that,the structure of 2/4 form reactor trip breaker for the second type is prior to other structures compared with the performance of mal-operation probability and reliability,and the improvement to decrease mal-operation probability should aim at the purpose of decreasing mal-operation probability of driving signals.

关 键 词：停堆断路器 误动率 拒动率 可靠性 

分 类 号：TM561[电气工程—电器]