保护系统下试验期间开关故障导致机组瞬态的故障分析及优化

Analysis and Optimization of Reactor Transient Fault Caused by Protection System Switch Fault

秦山第二核电厂反应堆保护系统进行模拟量通道试验(T1试验)时,由于开关故障导致信号未被。切除,导致机组瞬态故障。本文针对试验期间开关故障导致机组瞬态故障为出发点,对开关本体进行剖析,提出开关切换验证的办法,并结合工作实践提出了优化的维修策略,有效地保障了机组安全稳定运行。

When the analog channel test of reactor protection system(T1test)in Qinshan Phase Ⅱ Nuclear Power Plant,the transient fault of the unit was caused by the failure of the switch.In this paper,based on the transient fault caused by the switch fault during the test,the switch body is analyzed,and the method of switch switching verification is proposed.Combined with the work practice,the optimized maintenance strategy is put forward,which effectively ensures the safe and stable operation of the unit.