Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7112323 | Electric Power Systems Research | 2018 | 9 Pages |
Abstract
In assessing the lightning performance of a transmission line with an Electromagnetic Transient (EMT) approach, the representation of the earthing system or tower footing can have a major impact on the simulation results. In this paper, a practical circuit for a direct implementation into an EMT software is presented, which uses a minimum of input parameters to represent a common four rod tower footing arrangement. Based on an available description of the frequency-dependency of a single rod in soil and a description of the ionization in soil for a single rod, a combined circuit model is developed for a tower earthing arrangement with four rods in a square arrangement. This approach takes into account the merging of the ionization zones from each rod.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Energy Engineering and Power Technology
Authors
F. Koehler, J. Swingler,