Prebreakdown events in DC and AC stressed n-hexane

Author

McGrath, P.B. ; Marsden, H.I.

Author_Institution

Dept. of Electr. & Comput. Eng., Clarkson Univ., Potsdam, NY, USA

fYear

1989

fDate

29 Oct-2 Nov 1989

Firstpage

93

Lastpage

98

Abstract

An imaging system using shadow-graph optics in conjunction with a 3-ns-duration pulse laser was used to investigate prebreakdown events in DC and AC stressed n-hexane. The use of either DC or AC was shown to produce results that are essentially identical for a given electrode polarity. In addition, the prebreakdown images obtained bear a strong resemblance to those seen in impulse tests. This result suggests that prebreakdown events respond principally to the magnitude and polarity of the applied electric field, and that space charge and liquid motion exert minor influence

Keywords

dielectric properties of liquids and solutions; discharges (electric); electric breakdown of liquids; organic compounds; 0.027 to 0.3 MPa; AC stressed n-hexane; DC stressed n-hexane; applied electric field; electrode polarity; imaging system; impulse tests; liquid motion; prebreakdown events; prebreakdown images; pulse laser; shadow-graph optics; space charge; Electrodes; Needles; Optical films; Optical imaging; Optical pulses; Optical recording; Pulse amplifiers; Streaming media; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1989. Annual Report., Conference on

Conference_Location

Leesburg, VA

Type

conf

DOI

10.1109/CEIDP.1989.69529

Filename

69529