Title :
Study of streamer inception under impulse voltage in liquid cyclohexane
Author :
Dumitrescu, L. ; Lesaint, O. ; Bonifaci, N. ; Denat, A. ; Notingher, P.
Author_Institution :
LEMD, CNRS/Univ. Joseph Fourier, Grenoble, France
Abstract :
We study streamer initiation in liquid cyclohexane, in a point-plane geometry under impulse voltage. A new differential charge measurement system, allowing a high sensitivity to be obtained under impulse voltage (below 0.1 pC), is presented. The investigations presented concern the influence of applied voltage, impulse rise time and hydrostatic pressure. Under DC voltage, the negative streamer initiation is due to an avalanche in the liquid phase, and is not affected by pressure. In contrast, positive streamer initiation shows some variation when the pressure is increased
Keywords :
avalanche breakdown; charge measurement; dielectric liquids; discharges (electric); organic compounds; DC voltage; applied voltage; avalanche; differential charge measurement system; hydrostatic pressure; impulse rise time; impulse voltage; liquid cyclohexane; negative streamer initiation; point-plane geometry; positive streamer initiation; streamer inception; streamer initiation; Atmospheric modeling; Charge measurement; Current measurement; Discharges; Electric breakdown; Electrodes; Geometry; Liquids; Phase detection; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-6413-9
DOI :
10.1109/CEIDP.2000.885286
