Implementation for the Reliability Management System of the Emergency Diesel Generator at the Framatome-type Nuclear Power Plant

It is very important to ensure high reliability on an EDG (Emergency Diesel Generator). Because an EDG in a nuclear power plant is an emergency electric power supply facility, the EDG system must be able to get to the degree of the rated frequency and rated voltage within restricted time if a loss of offsite power occurs, and then an emergency electric power can be supplied to the safety-related systems. Currently, the EDG reliability management system has been developed and applied to the nuclear power plants such as Kori 1,2,3,4 units and Ulchin 3,4 units in order to ensure and monitor the reliability of the emergency electric power supply system. Now, a software program which will be utilized at the Framatome-type Nuclear Power Plant is being developed. The reliability management system monitors and analyzes EDG reliability periodically and it also performs proper measurement for the maintenance works so that an EDG ensures and preserves a target reliability. So to speak, the reliability management system is a software system which manages and uses all information related to reliability