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http://dx.doi.org/10.7734/COSEIK.2017.30.3.207

Seismic and Stress Analysis of 72.5kV GIS for Technical Specification of KEPCO  

Lee, Jae-Hwan (Department of Naval Architecture and Ocean Engineering, Chungnam National Univ.)
Kim, Young-Joong (Korea Institute of Machinery and Materials)
Kim, So-Ul (Graduate School, Chungnam National Univ.)
Bang, Myung-Suk (Cheryong Electric CO.,LTD)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.30, no.3, 2017 , pp. 207-214 More about this Journal
Abstract
High voltage electric power transmitter GIS(Gas Insulated Switchgear) above 72.5kV needs to satisfy domestic Korean peninsular standard(ES-6110-0002) in KEPCO with respect to normal and special operation conditions which include internal gas pressure, dead weight, wind and seismic load. Some other requirements not described in Korean standard can be applied from other international standards such as IEC(International Electronical Committee) 62271-203 and 62271-207. The GIS is a kind of pressure vessel structure made of aluminum and filled with SF6 gas of internal pressure 0.4~0.5MPa. Finite element analysis of GIS is performed with such operational loads including seismic loading and the stability and reliability is determined according to ASME BPVC(Boiler and Pressure Vessel Code) SEC. VIII standard where the allowable stress level of the pressure vessel is suggested. The result shows that the stress of GIS is satisfied the allowable stress level and the safety factor is about 2.3 for Korean peninsular standard.
Keywords
GIS; ASME; KEPCO; IEC 62271; required response spectrum; modal & seismic FEA analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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