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부분방전에 의한 분해생성물 거동 모델링을 위한 예비 연구
표진수(Jin-Soo Pyo),정세훈(Sehun Jung),백승현(Seunghyun Baik),김윤제(Youn-Jae Kim),이종철(Jong-Chul Lee) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
The use of gas-insulated switchgear (GIS) has been significantly increased in electric power plants. Each component of GIS is enclosed in a metal chamber, filled with compressed gaseous sulfur hexafluoride (SF?) as an electrical insulating medium. However, partial discharge (PD) or arc discharge, generated by sharp edges or small contaminant particles inside GIS, can cause the electrical breakdown of the system. Therefore, the PD detection in the early stage has become increasingly important in order to avoid the fatal failure of GIS. As Single-walled carbon nanotubes (SWNT) is good to sence decomposition products which are produced by PD, development of SWNT sensor is proceeding recently. In this study, numerical analysis was carried out, using a commercial CFD code, Phoenics, to obtain density distribution of decomposition product in a chamber modeling.