Reliability analysis of the 380V emergency AC power supply system of the China experimental fast reactor

According to the design and function of the 380 V emergency AC power supply system of the China Experimental Fast Reactor(CEFR),whose reliability analysis was completed through fault tree method.The minimal cut sets were obtained through the qualitative analysis.Unavailability which was also figured out through quantitative calculation is 6.65E-12,and the importance and sensitivity were worked out.The results will provide reference to the maintenance and test of the system.