Abstract
In this paper, a new approach for modeling grounding grids excited by lightning currents is proposed. The model is based on considering each set of parallel conductors in the grounding grid as a multiconductor transmission line. Electrical parameters are calculated and modal analysis is used in order to obtain a two port network representation for each set of parallel conductors in the grid. The different two port networks are interconnected following the pattern of connections in the grid; then, the system equations are reduced in order to obtain currents and voltages in the different grid junctions. This approach facilitates calculating the transient leakage currents into the soil and therefore the induced voltage on the soil surface. Finally, the transient step and touch voltages are calculated. The computer model was validated by means of an extensive comparison between obtained results with the proposed model, measurements and calculated results published in the literature. The validation process was extended successfully to grounding grids and vertical and horizontal electrodes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Electrical Power & Energy Systems
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
