The nuclear power plant information system for remote users

New information technology and an upgrade process are needed for a nuclear plant to have the capability of performing the extended scope of a plant information system. The current modular component technology is to be used for a next generation plant to achieve the extended plant information system function. This paper describes the realization of the new information system function by the Web interface technique in the project for the development of a liquid metal reactor, KALIMER (Korea Advanced Liquid Metal Reactor). The current plant information system in the KALIMER project, which currently supports design process, consists of a design information system, analysis information system, user interface management system and plant information database. The design information system manages all design documents and data in the design process. The analysis information system analyzes calculation results made for plant safety and performance. The user interface management system manages the interface among hardware, software and users. Using these systems supported, remote users can have access to design data and process data conveniently by the Web and the systems reduce the time and cost required for the access, and also improve data accuracy.