Title :
Corona characteristics of conductors due to oscillatory lightning surges
Author :
Jia, Wang ; Xiaoqing, Zhang
Author_Institution :
Sch. of Electron. Inf., Beijing Univ. of Civil Eng. & Archit., Beijing
Abstract :
Existing calculations of lightning overvoltage are based on double exponential impulses. In fact, damped oscillatory impulses are closer to the actual status than double exponential impulses. An experimental study of corona characteristics under unipolar oscillation impulses is described in this paper which exposed the change rule of q-u curves by changing parameter of waveshape. It also explains the origin of error in lightning overvoltage calculation based on q-u characteristics of double exponential impulses.
Keywords :
corona; lightning; lightning protection; overvoltage; surge protection; surges; conductors; corona; double exponential impulses; oscillatory lightning surges; unipolar oscillation impulses; Conductors; Corona; Current measurement; Electrodes; Electromagnetic compatibility; Frequency; Lightning; Resistors; Surge protection; Voltage control; damped oscillatory impulses; lightning overvoltage calculation; q-u curves;
Conference_Titel :
Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008. Asia-Pacific Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-981-08-0629-3
Electronic_ISBN :
978-981-08-0629-3
DOI :
10.1109/APEMC.2008.4559969
