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

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

IEEE PowerTech Conference - PowerTech 2005, St. Petersburg (Russia). 27-30 junio 2005

Summary:

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.

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

DOI: 10.1109/PTC.2005.4524515

Publication date: June 2005.

Citation:
Rondon, D., Vargas, M., Herrera, J., Montaña, J., Torres-Sánchez, H., Camargo, M., Jiménez, D., Delgadillo, A.R., Influence of grounding system modeling on Transient analysis of transmission lines due to direct lightning strike, IEEE PowerTech Conference - PowerTech 2005, St. Petersburg (Russia). 27-30 June 2005.

IIT-05-048A