Results 21 to 30 of about 25,281,540 (303)

Application of hybrid boundary element method: Example of semishperical ground inhomogeneity [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
One new, so-called hybrid boundary element method (HBEM) is presented in this paper. It is a recently proposed numerical method for stationary and quasi-stationary EM field analysis.
Cvetković Nenad N.   +4 more
doaj   +1 more source

Assessment of the Feasibility of Applying the Electromagnetic Time Reversal Theory to Locate Defects in Grounding Electrodes

open access: yesEnergies, 2023
In recent years, the electromagnetic time reversal (EMTR) theory has been successfully applied for locating various sources of disturbances, such as short-circuit faults, in power systems.
Rafael Alipio   +4 more
doaj   +1 more source

Investigative Study of Vertical Electrodes Encased in Concrete/Mortar with Various Sizes of Air Voids

open access: yesEnergies, 2021
Ionisation can occur in the soil when high impulse currents are subjected to grounding systems. This occurrence is generated by a difference in the dielectric strength value between the soil and air voids.
Hanis Hamizah Hizamul-Din   +3 more
doaj   +1 more source

Considerations in the design of electrical substations, including the effect of potential gradient on surrounding metallic structures

open access: yesIngenius: Revista de Ciencia y Tecnología, 2022
For designing and studying an electrical substation grounding system [GS], a simple remote substation is considered according to the safety procedures indicated in the IEEE 80 Standard. Buried metallic materials or nearby metallic structures permanently
Wilo Chiliquinga, Pablo Robles
doaj   +1 more source

Time domain solution of electromagnetic radiation model of the grounding system excited by pulse current [PDF]

open access: yesNuclear Technology and Radiation Protection, 2020
This paper deals with an advanced electromagnetic radiation approach for analyzing the time-domain performance of grounding systems under pulse excitation currents.
Dautbašić Nedis J.   +1 more
doaj   +1 more source

Harmonic Current Distribution in Grounding Systems of Cabled Medium Voltage Grids during Single-Pole Ground Fault

open access: yesEnergies, 2021
The design of every power supply system must guarantee the safety for human life even in the event of a fault. Due to the system change in the electrical power supply, the fault current contains more and more unknown shares of current harmonics ...
Benjamin Küchler   +2 more
doaj   +1 more source

Voltages Transient Analysis in Electric Grounding Systems

open access: yes, 2021
This paper discusses the problem of voltages transient analysis in electric grounding systems if there is a high voltage fault. With the help of the finite element theorem, the segments of the grounding systems are buried in the earth are examined, and ...
R. Syafruddin   +4 more
semanticscholar   +1 more source

Modeling of different tower grounding systems using hybrid continuous circuit-trapezoidal integration method [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2021
In order to protect the transmission lines against lightning strikes, it is important to investigate the tower grounding system. In this paper, a recent method called hybrid continuous circuit-trapezoidal integration method is used to calculate ...
Asadpourahmadchali Mohammadbagher   +2 more
doaj   +1 more source

Kernel Function-Based Inverting Algorithm for Structure Parameters of Horizontal Multilayer Soil

open access: yesEnergies, 2023
A multilayer soil structure model is fundamental to design grounding systems. A new method is presented to invert the structure parameters of horizontal multilayer soil.
Min-Jae Kang   +3 more
doaj   +1 more source

Investigations on the Performance of Various Horizontal Ground Electrodes

open access: yesEnergies, 2021
Experimental work on grounding systems has shown that the characteristics of grounding systems under high impulse conditions are different than those obtained at steady-state conditions.
Hanis Hamizah Hizamul-Din   +4 more
doaj   +1 more source

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