Title :
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
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;
Conference_Titel :
Lightning Protection (ICLP), 2014 International Conference o
Conference_Location :
Shanghai
DOI :
10.1109/ICLP.2014.6973227
