Date of Award
Doctor of Philosophy
The anticipated transient involving loss of offsite power has been identified as a major potential contributor of risk for a pressurized water reactor power generating facility. The capability of the emergency power system to supply adequate power to engineering safety systems is important for limiting the progression of the transient event and avoiding reactor core degradation;The evaluation of emergency power system reliability, using probabilistic risk assessment techniques with updated failure data, shows that the unavailability of this system is significantly higher than had been assessed earlier. The significant contributors to system unavailability are diesel generator operability problems, particularly when longer testing intervals are adopted, and human errors during the manual actuation of "system-critical" components. Proper human interaction in system operation is a unique contributor to total system availability and reliability.
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Wong, See-Meng, "Reliability analysis for the emergency power system of a pressurized water reactor facility during a loss of offsite power transient " (1984). Retrospective Theses and Dissertations. 7741.