AES-2006 NPPs with VVER-1200 UNITs as a new approach to display of information from technical diagnosis systems

Operator performance in the main control room (MCR) depends to a great extent on the form and amount of the information on the nuclear plant process status. An unstructured form of data display may result in an increase in the data processing time and in errors in the decisions made by operators. Convenience of the NPP data flow handling is given an increased focus but the process of supplying diagnostic data to operating personnel is neglected by both the developers of technical diagnosis systems and by the MCR interface designers. The paper provides an analysis of the upper-level information from technical diagnosis systems and presents requirements to respective screen forms and implementation options.