친환경 고전압 전력기기 개발을 위한 GN 2 의 절연특성 분석

• Published in: 전기학회논문지. The Transactions of the Korean Institute of Electrical Engineers. P Vol. 63; no. 4; pp. 356 - 360
• Main Authors: 방승민, 이온유, 김준일, 강종오, 이홍석, 고태국, 강형구, Bang, Seungmin, Lee, Onyou, Kim, Junil, Kang, Jong O, Lee, Hongseok, Ko, Taekuk, Kang, Hyoungku
• Format: Journal Article
• Language: Korean
• Published: 2014
• Subjects: High voltage apparatus; Breakdown voltage; Utilization factor; Partial discharge inception voltage
• ISSN: 1229-800X; 2586-7792

The environmental pollution caused by green-house gases such as $SF_2$ has been becoming the main issue of industrial society. As a part of these efforts, 180 countries signed the Kyoto Protocol in 1997 to cut back on their green-house gas emissions [1]. Therefore, a study on the dielectric characteristics of the $GN_2$ is important for designing a eco-friendly high voltage apparatuses. In this paper, to develop an electrically reliable, stable, and eco-friendly high voltage apparatus, the breakdown voltage and partial discharge inception voltage characteristics in $GN_2$ considering utilization factors are studied for the establishment of insulation design criteria of an high voltage apparatus. Dielectric experiments are performed by using several kinds of sphere-plane electrode systems made of stainless steel. Also, the dielectric characteristics of the $GN_2$ are analyzed by using a Finite Elements Method (FEM) according to various field utilization factors. The results are expected to be applicable to designing the high voltage apparatuses using $GN_2$ as an insulation gas.