Development of a CAD system based on a BEM approach for earthing grids in stratified soils
View/ Open
Use this link to cite
http://hdl.handle.net/2183/361Collections
Metadata
Show full item recordTitle
Development of a CAD system based on a BEM approach for earthing grids in stratified soilsDate
1999Citation
EPMESC VII : International Conference on Enhancement and Promotion of Computational Methods in Engineering and Science, 2-5 August, 1999, Macao, edited by Joao Bento, E. Arantes e Oliviera [sic], Eduardo Pereira
Abstract
[Abstract] The design of safe earthing systems is esential to assure the security of the persons as well as the protection of the equipment and the continuity of the power supply. For the attainment of these aims, it is necesary to compute the equivalent electrical resistance of the system and the potential distribution on earth surface when a fault condition occurs. In the last years, we have proposed a numerical approach based on the Boundary Element Method for the earthing analysis in uniform and homogeneous soils. This formulation has been succesfully applied to the analysis of several grounding grids in real electrical instalations. In this paper we present the generalization of this BE formulation for the grounding systems embedded in layered soils and the development of a CAD system based on it. The feasibility of this BEM approach is demostrated and it is applied to a frequent practical case of an earthing system in layered soil.
Keywords
Boundary element method
Grounding analysis
Nonuniform soil models
Grounding analysis
Nonuniform soil models
ISBN
008043570X