Onset voltages of atmospheric corona discharges on coniferous trees

✍ Scribed by L. Aubrecht; J. Koller; Z. Stanek

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 95 KB
• Volume: 63
• Category: Article
• ISSN: 1364-6826
• DOI: 10.1016/s1364-6826(01)00069-4

✦ Synopsis

In this article, the phenomenon of generation of corona discharges on the tops of trees and plants is described. In the ÿrst part of the text, the conditions for generation of this electric ÿeld which leads to formation of corona discharge and transfer of electric charge between atmosphere and Earth, are discussed. Experimental results of the onset voltage and its dependence on the discharge parameters are presented. The coincidence between released species from corona burning point and surrounding atmosphere is also discussed. Equation for the calculation of critical intensity of the electric ÿeld and onset voltage in dependence on radius of the tip are also discussed and compared with experimental data and equations for currentvoltage characteristics are described. The attempt to explain di erences between theory and measured data is proposed.