Choong-koo Chang
Abstract
Using IEC61850 across the Low Voltage (LV) and Medium Voltage (MV) protection systems allow the implementation of a number of advanced features such as logic selectivity interlocking when a short circuit occurs. In addition to improved logic selectivity and higher overall reliability, use of a single protocol offers a common interface for plant supervision and monitoring, providing more and better-quality data to operators so they can run the plant in an optimum way. This paper proposes the IEC61850 technology based electrical protection and control system for the MV and LV networks in nuclear power plants. Current practices are reviewed and then introduce the methodologies of how to apply IEC61850 in the electrical protection and control systems of nuclear power plants. Finally, the expected advantages and challenges will be elaborated.