RT Journal Article
T1 Applying Electromagnetic Field Analysis to Minimize the Earth Resistance on High Resistivity Soils
A1 Ronda Peñacoba, Silvia
A1 Oliver García, Clara
A1 Martínez Vílchez, Oibar
A1 Márquez Paniagua, Patricia
A1 Miranda Pantoja, José Miguel
AB Different optimization strategies to reduce the earth resistance in a high resistivity soil are discussed in this work and illustrated with a practical example. Finite Element simulations reproducing real-world conditions in terms of structure design and soil profiles have been made to evaluate the improvements that should be adopted to minimize earth resistance. We analyze an example of an earthing system of an array of four identical telescopes installed on high resistivity (k Omega. m order) soils with two different behaviors. In the first one, current dissipation occurs in an uniform soil. In the second one, a terrain with four layers of different resistivities is considered. This situation corresponds to a real world case of an observatory constructed in a volcanic terrain. It was found that the best strategy in each case differs: extend horizontal electrodes as far as possible from the foundation in the first case and combine these electrodes with buried vertical electrodes that connect with deep high conductive layers in the second. The results are discussed in terms of the achieved improvements depending on the modifications introduced in the main structure.
PB Electromagnetics Acad
SN 1937-8726
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/6709
UL https://hdl.handle.net/20.500.14352/6709
LA eng
NO © Copyright 2010 EMW Publishing. All Rights Reserved. This work has been funded by the Spanish Ministry of Science and Innovation, thru the research project FPA2017-82729-C6-4-R.
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 13 abr 2025