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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Improvement of Breakdown Characterlstics Using Ribbed Spacer of GIS
Authors Sung-Sic Ryu ; Young-Chan Choi ; Hee-Ro Kwak
Page pp.28-33
ISSN 1225-1135
Abstract This paper describes the effect of various conditions of the ribs on the breakdown characteristics when metal particle is attached to the spacer in GIS. More improved spacer shape in breakdown characteristics than conventional one is proposed by comparing the results acquired by varying location, length and thickness of the ribbed spacer. As a result, it was found that the electrical breakdown characteristics of the spacer with two ribs were generally better than that with only one rib or no ribs, and it was dependent on the rib length and rib thickness. Especially, it was also confirmed that the electrical breakdown characteristics were more improved by rounding the rib edge.