Simulation of breakdown in Cu-Cr metal vapor after vacuum arc extinctions

Author

Zhenxing Wang ; Yunbo Tian ; Yingsan Geng ; Zhiyuan Liu

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China

fYear

2013

fDate

20-23 Oct. 2013

Firstpage

1

Lastpage

4

Abstract

Metal vapor has a significant influence on dielectric recovery behaviors after interrupting a high vacuum arc. The objective of this paper is to study breakdowns in copper, chromium and copper-chromium vapors employing the PIC-MCC method. A 2d model with a given DC voltage is applied to study the breakdown processes in the metal vapor after vacuum arc extinctions taking into account thermal-field emission, secondary electron emission, plasma and neutral transport. The results confirm that the breakdown voltage decreased with the increase of the surface temperature. At the same surface temperature, the breakdown voltages for different metal vapors follow the trend of copper> chromium > copper-chromium.

Keywords

Monte Carlo methods; chromium; copper; vacuum arcs; vacuum breakdown; vacuum interrupters; 2D model; Cu-Cr; PIC-MCC method; breakdown voltage; copper-chromium metal vapors; dielectric recovery behaviors; high vacuum arc interruption; neutral transport; plasma transport; secondary electron emission; surface temperature; thermal-field emission; vacuum arc extinctions; Chromium; Copper; Electric breakdown; Electron emission; Plasma temperature; Surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Equipment - Switching Technology (ICEPE-ST), 2013 2nd International Conference on

Conference_Location

Matsue

Type

conf

DOI

10.1109/ICEPE-ST.2013.6804311

Filename

6804311