Temperature Distribution Analysis of Single-Phase GIS Bus

Author

Wu, Xiaowen ; Li, Hongtao ; Peng, Yunfeng ; Xie, Zhiyang ; Jin, Xiangchao

Author_Institution

Sch. Of Electr. Eng., Wuhan Univ., Wuhan, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

Contact resistance of Gas insulated switchgear (GIS) bus conductor would increase and overheat itself in long-term operation. This paper established mathematical model to figure out temperature distribution of 4kA single-phase GIS bus. Power loss in electromagnetic field was calculated and indirectly coupled to temperature and flow field. Calculation result showed that the temperature distribution was symmetric like a butterfly and highest temperature of the enclosure was on the top, while the lowest was at the bottom. Agreement between the simulation result and experiment data verified the accuracy of calculation. At the end of the paper, different contact resistances of bus conductor, as simulated failure, were assumed to estimate temperature change on the surface of the enclosure.

Keywords

busbars; contact resistance; electromagnetic fields; gas insulated switchgear; temperature distribution; contact resistance; current 4 kA; electromagnetic field; mathematical model; power loss; single-phase gas insulated switchgear bus conductor; temperature change estimation; temperature distribution analysis; Conductors; Eddy currents; Equations; Geographic Information Systems; Heat transfer; Mathematical model; Temperature distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748365

Filename

5748365