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Accession Number DE14-1129947
Title System Study: Emergency Power System 1998-2012.
Publication Date Oct 2013
Media Count 34p
Personal Author T. E. Wierman
Abstract This report presents an unreliability evaluation of the emergency power system (EPS) at 104 U.S. commercial nuclear power plants. Demand, run hours, and failure data from fiscal year 1998 through 2012 for selected components were obtained from the Equipment Performance and Information Exchange (EPIX). The unreliability results are trended for the most recent 10-year period while yearly estimates for system unreliability are provided for the entire active period. A statistically significant increasing trend was identified for unreliability (8-hour model) as a function of fiscal year. No statistically significant decreasing trend was identified in the EPS results.
Keywords Demand
Emergencies
Emergency power system(EPS)
Failures
Nuclear power plants
Performance evaluation
Power systems
Reactor safety
Trends


 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77H - Reactor Engineering & Nuclear Power Plants
Corporate Author Idaho National Laboratory, Idaho Falls, ID. Risk Assessment and Management Services Department.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1422
Contract Number N/A

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