The Peak Value of Lightning-Induced Voltages in Overhead Lines Considering the Ground Resistivity and Typical Return Stroke Parameters

Author

Paulino, José Osvaldo S ; Barbosa, Célio Fonseca ; Lopes, Ivan J S ; Boaventura, Wallace Do Couto

Author_Institution

Dept. of Electr. Eng., Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil

Volume

26

Issue

2

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

920

Lastpage

927

Abstract

This paper presents an approximate formula for the peak value of lightning-induced voltages in an overhead line, considering the ground resistivity and a trapezoidal lightning return stroke current waveform with typical parameters 3.8-μ s front time and 120-m/μ s velocity. It presents an improvement in a formula previously proposed by the authors. The formula is used with a probabilistic approach, and the results are compared with theoretical and experimental results available in the literature. The results show that the proposed formula, although very simple, is in good agreement with results obtained using complete formulations and experimental data.

Keywords

electric resistance; lightning; power distribution lines; power overhead lines; probability; ground resistivity; lightning-induced voltages; overhead distribution line; probabilistic approach; return stroke parameters; trapezoidal lightning; Induced voltage; lightning; overhead distribution line; soil conductivity;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2010.2095887

Filename

5686895