Results 11 to 20 of about 36,223 (312)

Grounding System Cost Analysis Using Optimization Algorithms

open access: yesEnergies, 2018
In this study, the concept of grounding systems is related to the voltage tolerance of the human body (human body voltage tolerance safety value). The maximum touch voltage target and grounding resistance values are calculated in order to compute the ...
Jau-Woei Perng   +2 more
doaj   +2 more sources

Arbitrary Grounding [PDF]

open access: yes, 2021
The aim of this paper is to introduce, elucidate and defend the usefulness of a variant of grounding, or metaphysical explanation, that has the feature that the grounds explain of some states of affairs that one of them obtains without explaining which ...
Werner, Jonas
core   +1 more source

Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines

open access: yesEnergies, 2020
A significant majority of overhead transmission lines’ (OHLs) outages is due to backflashovers caused by direct lightning strikes: the realistic assessment of the lightning performance is thus an important task.
Fabio Massimo Gatta   +4 more
doaj   +1 more source

Energized Diagnostic Technology of Cable Cross-Bonded Defects

open access: yesIEEE Access, 2023
A new type of energized diagnostic technique aimed at defects in the cross-bonded grounding system of power cables is proposed. Based on the equivalent model of a normal cross-bonded grounding unit, the equivalent models of 23 common cross-bonded defects
Shunyu Yao, Zhen Liu
doaj   +1 more source

Effect of Non-Homogeneous Soil Characteristics on Substation Grounding-Grid Performances: A Review

open access: yesApplied Sciences, 2021
Designing an effective grounding system for AC substations needs predetermination of ground resistance and ground potential distribution caused by fault current’s presence in the ground.
Navinesshani Permal   +3 more
doaj   +1 more source

Study on the scheme design of integrated grounding system for a 550 kV gas insulated transmission line

open access: yesThe Journal of Engineering, 2019
Gas insulated transmission line (GIL) is an advanced power transmission mode. Since the extension of this kind of equipment is relatively long, the grounding design and layout of the GIL will have a direct impact on personal safety and the stability ...
Chun Zhao   +5 more
doaj   +1 more source

The Impact of Substation Grounding Grid Design Parameters in Non-Homogenous Soil to the Grid Safety Threshold Parameters

open access: yesIEEE Access, 2021
It is important to ensure that a grounding system is designed with a low magnitude of earth resistance, so the protection system can divert the large fault current to earth effectively.
Navinesshani Permal   +3 more
doaj   +1 more source

The ATLAS SCT grounding and shielding concept and implementation [PDF]

open access: yes, 2012
This paper presents a complete description of Virgo, the French-Italian gravitational wave detector. The detector, built at Cascina, near Pisa (Italy), is a very large Michelson interferometer, with 3 km-long arms. In this paper, following a presentation
Bernabeu, J   +174 more
core   +1 more source

Reduction of the step voltages of MV/LV substation grounding system based on shaping electric field [PDF]

open access: yesArchives of Electrical Engineering, 2021
The article presents the analysis results of the effectiveness limitation of the step voltage by forming an electric field on the ground surface. For shaping the electric field, a method consisting of screens placed around the point of the earth current ...
Roman Sikora, Przemysław Markiewicz
doaj   +1 more source

A New Approach to Include Complex Grounding System in Lightning Transient Studies and EMI Evaluations

open access: yesEnergies, 2019
A new approach to lightning transient studies including complex grounding grids is presented in this paper. The grounding system is modeled in Matlab/Simulink based on the transmission line theory.
Vegard Steinsland   +3 more
doaj   +1 more source

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