Experimental analysis of direct current corona discharge

International Conference on Applied Sciences 2016

Lagr, A.^1 ; Dini, C.M.^1 ; Popa, G.N.^1

Politehnica University of Timisoara, Department of Electrical Engineering and Industrial Informatics, 5 Revolution Street, Hunedoara

331128, Romania^1

关键词: Active electrodes;    DC corona discharge;    Digital oscilloscope;    Discharge electrode;    Electrostatic discharge system;    Experimental analysis;    Radius of curvature;    Spherical electrodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/163/1/012035/pdf
DOI  :  10.1088/1757-899X/163/1/012035

来源: IOP

【 摘 要 】

This paper presents the experimental analysis of current-voltage characteristic of DC corona discharge. In experiments were used an electrostatic discharge system, consists of an active brass electrode, and a passive copper electrode (plane). A high-voltage source has been used to produce the positive or negative DC discharge. To analyse the influence of active electrode surface were used a conical and a spherical electrode, with small radius of curvature. The gap between the electrodes was varied by moving the passive electrode. Current-voltage characteristics of DC corona discharge were obtained at a constant distance between the discharge electrodes, by changing the amplitude of supply voltage. Corona current and voltage were acquired using a digital oscilloscope. Experiments allowed the study of the effects due to the active electrode and the air gap between the electrodes, on the onset voltage and the current of corona discharge.