Abstract:
Nuclear instrumentation system(RPN) is an important part of instrument and control system in NPPs. This paper introduces the general architecture, functions, design demands and design characteristics of the digital nuclear instrumentation system in Fuqing phase I project, and also the functional distribution between RPN and safety digital instrument & control system is compared with that of Ling’ao phase II NPP. The result shows the digital RPN design of Fuqing phase I project satisfies the system functional demands, and can be used as an reference for optimizing RPN design of the following projects.