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An Advanced NSSS Integrity Monitoring System for Shin-Kori Nuclear Units 3 and 4

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3 Author(s)
Yang Gyun Oh ; I&C Eng. Dept., KEPCO Eng. & Constr. Co., Inc. (KEPCO E&C), Daejeon, South Korea ; Galin, S.R. ; Sang Jeong Lee

The advanced design features of NSSS (Nuclear Steam Supply System) Integrity Monitoring System for Shin-Kori Nuclear Units 3 and 4 are summarized herein. During the overall system design and detailed component design processes, many design improvements have been made for the system. The major design changes are: 1) the application of a common software platform for all subsystems, 2) the implementation of remote access, control and monitoring capabilities, and 3) the equipment redesign and rearrangement that has simplified the system architecture. Changes give an effect on cabinet size, number of cables, cyber-security, graphic user interfaces, and interfaces with other monitoring systems. The system installation and operation for Shin-Kori Nuclear Units 3 and 4 will be more convenient than those for previous Korean nuclear units in view of its remote control capability, automated test functions, improved user interface functions, and much less cabling.

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Nuclear Science, IEEE Transactions on  (Volume:57 ,  Issue: 6 )