Results 41 to 50 of about 369,891 (290)

Computing Tower-Footing Grounding Impedance and GPR curves of Grounding Electrodes Buried in Multilayer Soils

, 2019
Grounding systems are essential to dissipate fault currents into soil to guarantee safe conditions to personnel and equipment. In this context, several approaches have been employed to calculate tower-footing grounding impedance either in the frequency ...
Behzad Kordi, Claudiner M. Sexias, Kordi, Behzad, Araujo, Anderson R.J. De, Sexias, Claudiner M., Jaimis S.L. Colqui, Kurokawa, Sergio, Anderson R.J. de Araujo, Sergio Kurokawa, Colqui, Jaimis S.L.   +9 more
core   +2 more sources

Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations

Energies, 2020
In a recently published work, the characteristics of a new grounding device with spike rods (GDSR) with various arrangements of ground electrodes under high magnitude impulse currents (up to 16 kA), was investigated.
Abdul Wali Abdul Ali, Nurul Nadia Ahmad, Normiza Mohamad Nor, Nur Farahi Idris, Farhan Hanaffi   +4 more
doaj   +1 more source

Analysis of grounding system transient with consideration of soil ionization and mutual coupling effect

Journal of Electrical Systems and Information Technology, 2023
The grounding system of an electrical substation provides safety to both operator and equipment. The lightning current waveform has a major influence on the dynamic performance of ground electrodes.
Kaushal Pratap Sengar, Kandasamy Chandrasekaran   +1 more
doaj   +1 more source

Grid-Ground Electrode in Two Layered Non-Homogeneous Ground

7th Symposium on Applied Electromagnetics SAEM`18: Conference Proceedings, 2019
In this paper, a procedure including using of the Green’s functions for a point source in multilayered media for the electric scalar potential and the Method of Moments-MoM for analyzing described problem is adopted. The approach provides generating Green’s function of the point source for arbitrary number of homogeneous layers. Also, it is possible to
Nenad Cvetkovic, Dejan Jovanovic, Miodrag Stojanovic, Marinko Barukcic   +3 more
openaire   +1 more source

The Current Releasing Characteristics of DC Vertical Earthing Electrode Forming an Elliptical Ring

Zhongguo dianli, 2021
The vertical DC grounding electrode forming an elliptical ring occupies a relative small land and has strong topography adaptability, which makes it worth to be widely applied.
Yang CHEN
doaj   +1 more source

Ensuring the reliability of energy systems through the application of a new method for introducing soil-replacement mixtures during the installation of deep grounding devices [PDF]

E3S Web of Conferences
This paper discusses a method for using mixtures to optimize the electrical parameters of grounding devices during the installation of vertical composite ground electrodes.
Pavlovich Ivan, Baraishuk Siarhei, Murodov Muzaffar, Abdulkhayev Khurshed   +3 more
doaj   +1 more source

Effect of Ground Electrodes on the Susceptibility to Damage of Customer Premises Equipment (CPE) under Impulse Conditions

Energies, 2022
One of the requirements for the safe operation of customer premises equipment (CPE) is an adequate grounding system as a means to divert high fault currents to the ground.
Usman Muhammad, Normiza Mohamad Nor, Annuar Mohd Ramli, Nurul Nadia Ahmad   +3 more
doaj   +1 more source

Shallow-buried ring grounding electrodes

, 2006
The problem of two shallow-buried ring grounding electrodes of low frequencies is analyzed in this paper. In solving this problem, the ground is assumed as linear, homogeneous and isotropic medium.
Slavoljub Aleksic, Zlata Cvetkovic, Bojana Nikolic   +2 more
core   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

ON THE ISSUE OF DESIGN OF GROUNDING SYSTEMS OF 330(220) KV SUBSTATIONS TO ENSURE THE ELECTROMAGNETIC COMPATIBILITY OF SECONDARY CIRCUITS

Electrical engineering & Electromechanics, 2018
Purpose. The purpose of the work is to develop the fundamentals of the design methodology of grounding system design of substations with open switchgears 330 (220) kV, which is aimed at ensuring electromagnetic compatibility of secondary circuits of ...
O. Yu. Glebov, D. G. Koliushko, G. M. Koliushko, E. P. Eremeeva   +3 more
doaj   +1 more source