Oscillation processes of DC electric arcs at different setups of electrodes and variable parallel capacitance

Author

Streck, Matthias ; Eppler, Oliver ; Nothnagel, Frank ; Berger, Frank

Author_Institution

Ilmenau Univ. of Techn., Ilmenau, Germany

fYear

2013

fDate

2-5 Sept. 2013

Firstpage

1

Lastpage

6

Abstract

Electric arcs in electrical DC systems represent both an enormous challenge to switchgear (switch arc) and a serious hazard to humans and the whole system (fault arc). Hitherto existing literature states an negative impact of a parallel capacitance on the arc existence. For low voltage DC systems the behavior of free burning arcs in air is analyzed. The formation of arc-oscillations due to a parallel capacitance is investigated. Several dependencies between total current, arc-length, electrode material and value of the parallel capacitance are outlined.

Keywords

arcs (electric); circuit oscillations; electrochemical electrodes; solar cells; DC electric arc; arc length; arc oscillation formation; electrical DC system; electrode material; fault arc; free burning arc; low voltage DC system; oscillation process; switch arc; switchgear; variable parallel capacitance; Arc discharges; Capacitance; Carbon; Electrodes; Materials; Oscillators; Resistance; DC arc; DC system; battery bank; commutation capacitance; electric arc; fault arc; photovoltaic; relaxation oscillation; switch arc;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference (UPEC), 2013 48th International Universities'

Conference_Location

Dublin

Type

conf

DOI

10.1109/UPEC.2013.6714955

Filename

6714955