[PDF] Conference Paper: Influence of grounding system modeling on Transient analysis of transmission lines due to direct lightning strike

Title:

Influence of grounding system modeling on Transient analysis of transmission lines due to direct lightning strike

Authors:

D. Rondon , M. Vargas , J. Herrera , J. Montaña , H. Torres-Sánchez , M. Camargo , D. Jiménez , A.R. Delgadillo

Keywords:

EMTP/ATP, Grounding System, Lightning, Overvoltage. Transmission Line

Research topics

Electromagnetic transients: lightning and switching overvoltages in overhead and GIS substations, location of surge arresters

Abstract:

The aim of this paper is to implement different grounding system (GS) models in order to compare its influence on the calculation of overvoltages in transmission lines, produced by direct lightning strikes. The models studied were a lumped DC resistance, a non linear resistance, and a synthesized circuit based on the frequency response of the GS. The latest model is proposed by the authors and takes into account the frequency dependent transient behavior of the GS. The overvoltages simulations were carried out by means of the EMTP-ATP program.

Reference:

2005 IEEE Russia Power Tech. San Petersburgo, Rusia. 27-30 Junio 2005.

Publication date:

June 2005

DOI reference: