Results 21 to 30 of about 9,005,192 (299)

Review of Substation Grounding System Behavior Under High Frequency and Transient Faults in Uniform Soil

IEEE Access, 2020
Substations are important parts of electric power systems, and they require well-designed grounding systems. A proper grounding system guarantees the safety of the personnel working in an environment surrounded by grounded equipment from possible ...
Navinesshani Permal, Miszaina Osman, Mohd Zainal Abidin Ab. Kadir, Azrul Mohd Ariffin   +3 more
doaj   +1 more source

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

Energies, 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, Naiara Duarte, Hamidreza Karami, Marcos Rubinstein, Farhad Rachidi   +4 more
doaj   +1 more source

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

Energies, 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, Normiza Mohamad Nor, Dzulkafley Abd Samad, Muhd Norhasri Muhd Sidek   +3 more
doaj   +1 more source

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

Ingenius: 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]

Nuclear 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., Mujezinović Adnan Z.   +1 more
doaj   +1 more source

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

Energies, 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, Uwe Schmidt, Jonathan Hänsch   +2 more
doaj   +1 more source

Good Systems Network Meeting [PDF]

, 2020
You're viewing a past event from the Good Systems Grand Challenge team at The University of Texas at Austin that contains two presentations from May 19, 2020.Office of the VP for ...
Good Systems
core   +1 more source

Seasonal Influences on the Impulse Characteristics of Grounding Systems for Tropical Countries

Energies, 2019
One of the most important parameters of the performance of grounding systems is the soil resistivity. As generally known, the soil resistivity changes seasonally, hence the performance of grounding systems, at DC and under high impulse conditions.
Muhd Shahirad Reffin, Abdul Wali Abdul Ali, Normiza Mohamad Nor, Nurul Nadia Ahmad, Syarifah Amanina Syed Abdullah, Azwan Mahmud, Farhan Hanaffi   +6 more
doaj   +1 more source

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

Energies, 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, Chang-Jin Boo, Byeong-Chan Han, Ho-Chan Kim   +3 more
doaj   +1 more source

Investigations on the Performance of Various Horizontal Ground Electrodes

Energies, 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, Normiza Mohamad Nor, Nurul Nadia Ahmad, Nur Farahi Idris, Azwan Mahmud   +4 more
doaj   +1 more source