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http://dx.doi.org/10.5000/EESK.2009.13.2.047

Seismic Fragility Analysis of Substation Systems by Using the Fault Tree Method  

Kim, Min-Kyu (한국원자력연구원 종합안전평가부)
Choun, Young-Sun (한국원자력연구원 종합안전평가부)
Choi, In-Kil (한국원자력연구원 종합안전평가부)
Oh, Keum-Ho (국립방재연구소)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.13, no.2, 2009 , pp. 47-58 More about this Journal
Abstract
In this study, a seismic fragility analysis was performed for substation systems in Korea. To evaluate the seismic fragility function of the substation systems, a fragility analysis of the individual equipment and facilities of the substation systems was first performed, and then all systems were considered in the fragility analysis of the substation systems using a fault-tree method. For this research, the status of the substation systems in Korea was investigated for the classification of the substation systems. Following the classification of the substation systems, target equipment was selected based on previous damage records in earthquake hazards. The substation systems were classified as 765kV, 345kV, and 154kV systems. Transformer and bushing were chosen as target equipment. The failure modes and criteria for transformer and bushing were decided, and fragility analysis performed. Finally, the fragility functions of substation system were evaluated using the fault tree method according to damage status.
Keywords
substation system; Seismic fragility function; fault tree method; failure probability; damage status;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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