Title :
Electrical insulation characteristics of CO2 and CO2 gas mixtures under non-uniform electric field
Author :
Okubo, Hisanori ; Koshino, Naoto ; Hayakawa, Naoki
Author_Institution :
Center for Integrated Res. in Sci. & Eng., Nagoya Univ., Japan
Abstract :
Since SF6 gas has been specified as one of the greenhouse gases, we attempt to develop new insulation gases or gas mixtures alternative to SF6 gas for gas insulated switchgears (GIS). In this paper, we investigated partial discharge (PD) and breakdown (BD) characteristics of CO2 gas and CO2 gas mixtures as one of the promising candidates without using SF6 gas. Experimental results revealed PD inception and BD strengths for different gas pressure and CO2 content under lightning impulse voltage and ac high voltage application.
Keywords :
carbon compounds; electric breakdown; gas mixtures; insulating materials; partial discharges; CO2; CO2 gas mixtures; ac high voltage application; breakdown characteristics; electrical insulation characteristics; gas insulated switchgears; greenhouse gases; lightning impulse voltage; nonuniform electric field; partial discharge; Dielectrics and electrical insulation; Electric breakdown; Gas insulation; Gases; Geographic Information Systems; Global warming; Lightning; Partial discharges; Switchgear; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN :
0-7803-7910-1
DOI :
10.1109/CEIDP.2003.1254911
