Studying energy evolution in the discharge chamber of a multichamber lightning protection system

Axial Blast Type Discharge Chamber with Moving Electrode

“…Besides needs of the electric power industry, research of powerful arc of variable length and methods of its quenching has the great importance for the development of various technologies of lightning protection [7][8][9], plasma chemistry [10,11], aerodynamics [12,13] and others. The carrying out of experimental researches of the high current discharges at high pressure requires the creation of complicated testing systems [14].…”

Energy deposition in discharge chamber of lightning protection multichamber system

“…The brief review of used diagnostics methods one can find in [14]. The first results of energy deposition distribution along discharge chamber for current amplitude of 10 kA are reported in [15]. The chamber construction is described in details in [3], also brief scetch is in [8,15].…”

“…The first results of energy deposition distribution along discharge chamber for current amplitude of 10 kA are reported in [15]. The chamber construction is described in details in [3], also brief scetch is in [8,15]. The case of chamber is made from silastic.…”

“…An exposition of each frame was of 15 ns. For carrying out high speed photography in a lateral projection of the discharge chamber has been cut off up to border with a discharge slot and instead of a slot wall the transparent polycarbonate sheet has been rigidly fixed [15]. Plain geometry of a discharge slot allows reconstructing a field of energy deposition in the discharge volume according to high-speed photographing.…”

“…The spectral emissive ability in the spectral range is linearly proportional to temperature I λ ∼ T for estimated plasma temperatures. Thus, assuming, that locally deposited energy is spent on temperature increase (with accuracy up to gas kinetic energy), the optical image reflects a field of energy deposition in the plane geometry of discharge volume [15]. Field I λ (x, y, t) actually corresponds to distribution of image intensity of discharge high-speed photo during the same instant in time t (plane XY perpendicular to the direction of the photo shooting and the X-axis is directed along the length of the discharge chamber).…”