Title :
Response of VLF insulators to lightning strokes
Author :
Dala, S.B. ; Gorur, R.S. ; Hensen, P.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
The response of very low frequency (VLF) insulators to lightning strokes is a complex phenomenon and not yet understood completely. This project is undertaken at Arizona State University (ASU) to understand recent failures of VLF insulators during lightning strokes at a US Navy site. An analytical model has been formulated to characterize the breakdown of bridged air gaps under lightning strokes. A Matlab® program has been written for determining volt-time characteristics of bridged air gaps under lightning strokes and the results have been verified with the available test data.
Keywords :
air gaps; electric breakdown; insulators; lightning; Matlab program; VLF insulators; bridged air gap breakdown; lightning strokes; very low frequency insulators; volt-time characteristics; Air gaps; Analytical models; Breakdown voltage; Corona; Electric breakdown; Electrodes; Equations; Frequency; Insulation; Lightning;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552251
