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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 A Study on Characteristics of Insulation Breakdown by the Mixing Ratio of enhanced Dry Air and SF6
Authors Jeong-Hoo Seok ; Jong-Hyun Beak ; Dong-Young Lim ; Sungwoo Bae ; Ki-Chai Kim ; Won-Zoo Park
DOI http://dx.doi.org/10.5207/JIEIE.2016.30.3.086
Page pp.86-93
ISSN 1225-1135
Keywords Breakdown ; Dielectric strength ; Dry Air ; Electron Detachment ; SF6 Mixture Gas
Abstract It is very desirable that a mixture gas possessing excellent insulation performance is suggested for insulation on increasing high voltage. This paper proposes a SF6 mixture gas based on the factors including dielectric strength, environmental impact and economic feasibility of manufacture for the insulation in eco-friendly power equipment. A suitable-SF6 content was determined to improve the dielectric strength in N2 and Dry Air. The examination results of the factors revealed that a SF6/Dry Air mixture gas possessing the SF6 content was more appropriate than a SF6/N2 mixture gas to the eco-friendly power equipment. In addition to the selection of the suitable SF6 mixture gas, insulation characteristics as a function of SF6 content were described from electron-detachment mechanism.