Search results for " Electric potential"

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Fall of Potential Measurement of the Earth Resistance in Urban Environments: Accuracy Evaluation

2019

Both Standards EN 50522 and IEEE 81 propose the fall of potential method (FPM) to carry out the measurement of the resistance to earth ( $R_{\text{ES}}$ ) of an earthing system (ES). However, in urban areas, the recommended distances between the ES and auxiliary electrodes are not easy to respect, due to the presence of buildings and tarmac. Furthermore, unknown buried metallic parts and interconnections among ESs could modify the earth potential profile of the area, affecting the measurement results. In this paper, the key-issues that influence the measured $R_{\text{ES}}$ when the FPM is used in an urban environment are presented. A parametric analysis, carried out with Comsol Multiphysic…

Field (physics)Computer science020209 energyMultiphysicsSubstationsurban areas02 engineering and technologyEarth GroundingTopologyfall of potentialIndustrial and Manufacturing Engineering0202 electrical engineering electronic engineering information engineeringGround resistance measurementElectrical and Electronic EngineeringMV/LV substationElectrodesGroundingTarmacresistance measurementGround020208 electrical & electronic engineeringPotential methodEarthPotential measurementEarthing systemSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaEarth Electrodes Grounding Electric potential Substations Probes Ground resistance measurementElectric potentialControl and Systems EngineeringProbesElectric potential
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