Waveshapes of lightning induced voltages on an overhead line above lossy ground

Author

Paulino, Jose Osvaldo S. ; Lopes, Ivan Jose S. ; Boaventura, Wallace C. ; Miranda, Glassio C. ; Barbosa, Celio F.

Author_Institution

Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil

fYear

2014

fDate

11-18 Oct. 2014

Firstpage

772

Lastpage

776

Abstract

This paper presents the front time and time-to-half values of lightning induced voltages obtained from deterministic and probabilistic simulations. The lightning induced-voltages are calculated at the center of an overhead line above lossy ground, considering typical parameters for first negative strokes. The waveshape parameters are influenced by the distance from the stroke striking point to the line, line length, and soil resistivity value. The results are relevant in order to assess the behavior of line insulation under lightning-induced voltages.

Keywords

deterministic algorithms; electrical resistivity; insulation; lightning protection; power overhead lines; probability; deterministic simulations; front time; lightning induced voltages; line insulation; line length; lossy ground; negative strokes; overhead line; probabilistic simulations; soil resistivity value; stroke striking point; time-to-half values; waveshape parameters; Conductivity; Electromagnetic compatibility; Insulation; Lightning; Probabilistic logic; Soil; Surges; induced voltage; lightning; overhead line; soil resistivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning Protection (ICLP), 2014 International Conference o

Conference_Location

Shanghai

Type

conf

DOI

10.1109/ICLP.2014.6973227

Filename

6973227