Electrical Characterization of Gas Discharges in Relation with their Properties Using a Numerical Treatment
The applications of gaseous dielectrics are lying on their physical, chemical and electrical properties and on these properties couplings. This justifies the search for appropriate and accurate diagnostics on these properties. A good knowledge of the currents displayed across gaseous dielectrics is of prime interest to understand and master the behavior of the equipment using them: this will be true for the control of gasinsulated (SF6, SF6-N2) high voltage equipment, as well as for the optimization of plasma reactors devoted to plasma chemistry applications. In fact, in all cases, when such systems are energized with continuously applied voltages (dc, ac or others), they do not only deliver impulsive currents (partial discharges pulses only taken into account by many people managing with gas-insulated equipment or streamers pulses, only taken into account by various people concerned with plasma chemistry applications), but also nonimpulsive currents (glow discharge currents) which in all cases (i) consume energy, (ii) have chemical effects, harmful in the case of gas-insulated equipment1 and useful in the case of plasma reactors2, (iii) have heating effects to be avoided in the case of gasinsulated equipment3,4 and useful or not in the case of plasma chemistry applications.
KeywordsDielectric Barrier Discharge Partial Discharge Negative Pulse Positive Pulse Impulsive Current
Unable to display preview. Download preview PDF.
- 1.M. Lalmas, K. Hadidi, H. Champain and A. Goldman, “Corona discharges long-term behavior and delayed spark breakdown in SF6 under DC voltages”, Proc.4,th Intern. Symp. on High Pressure Low Temperature Plasma Chemistry (Hakone IV), Bratislava, Slovakia, p189 (1993).Google Scholar
- 2.L. Parissi (1999) “Study of an air polluted by volatile organic compounds treatment process by a mean frequency dielectric barrier discharge: mechanisms involved and optimization research”, Doctorate Thesis, University Paris VI, France.Google Scholar
- 3.H. Champain, A. Goldman and M. Lalmas, “From corona stabilization to spark breakdown in point-to-plane SF6 gap”, in Gaseous dielectrics VIII, L. Christophorou and J. Olthoffeds, Plenum Press, New-York, 1998.Google Scholar
- 4.R.S. Sigmond, “A narrow-jet model of dc corona breakdown”, Proc. 7th Int. Conf. on Gas Discharges and their applications, pp. 227–230, London (1982).Google Scholar
- 6.M. Petit, N. Jidenko, A. Goldman, M. Goldman, and J.P. Borra, A Numerical Treatment for Electrical Characterization of Dielectric Barrier Discharges, submitted to Review of Scientific Instrument, 2001.Google Scholar
- 8.E. Odic, M. Dhainaut, M. Petit, C. Karimi, A. Goldman and M. Goldman, “Towards a better understanding of the electrical parameters monitoring the chemical reactivity of dielectric barrier discharges at atmospheric pressure”, Proc. III Int. Symp. On Nonthermal Plasma Tech. for Pollution Control (ISNPT-3), Korea (2001).Google Scholar