Insulation characteristics of various conditions for eco-friendly high voltage switchgear

Author

Lee, J.H. ; Ryu, J.S. ; Joo, H.W. ; Tak, S.J. ; Park, S.W. ; Lee, J.H.

Author_Institution

LS Ind. Syst. Co., Cheongju, South Korea

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

High voltage applications often use SF6 gas insulation and arc extinguishing medium. However, SF6 gas was specified as a greenhouse gas in the Kyoto protocol in 1997 and the manufactures of electric power equipments try to replace SF6 gas with another eco-friendly insulation medium. In this paper, the various insulation conditions of bus system of gas insulated switchgear were analyzed by finite element method and lightning impulse tests were performed to compare dielectric strength of each condition. Dry-Air and mixed gas with SF6 and Dry-Air, is considered as substitution of insulation medium and the epoxy coated surface of current carrying conductor as an addition of insulation material.

Keywords

air pollution control; finite element analysis; gas insulated switchgear; government policies; greenhouses; Kyoto protocol; SF6 gas insulation; arc extinguishing medium; current carrying conductor; dry air; eco-friendly high voltage switchgear; eco-friendly insulation medium; electric power equipments; epoxy coated surface; finite element method; gas insulated switchgear; greenhouse gas; lightning impulse tests; mixed gas; Conductors; Electric breakdown; Electric fields; Geographic Information Systems; Lightning; Sulfur hexafluoride; Dry Air; GIS(Gas Insulated Switchgear); Insulation level; Lightning Impulse Test; Mixed gas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5607957

Filename

5607957