Results 1 to 10 of about 13,209 (233)

Smart Touch Voltage Limitation [PDF]

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
In modern railway electric infrastructure design there are two major concerns that should be considered as touch voltage and stray current. The first problem is touch and step voltage which endangers human safety even to deathly situations.
Mahmut Turhan
doaj   +2 more sources

Reducing the Effect of Lightning on Step and Touch Voltages in a Grounding Grid Using a Nature-Inspired Genetic Algorithm With ATP-EMTP

IEEE Access, 2019
This paper discusses the step and touch voltages, based on body resistance, in a grounding grid after a lightning strike at a 434-/21-kV substation. To ensure grounding grid safety, the maximum step and touch voltage should not exceed the safety criteria
Saeid Gholami Farkoush, Abdul Wadood, Tahir Khurshaid, Chang-Hwan Kim, Muhammad Irfan, Sang-Bong Rhee   +5 more
doaj   +3 more sources

An overview of methods for eliminating the effects of interference in an active high-voltage power facility [PDF]

Tehnika, 2021
In this paper, practical and conceptual problems related to the way of suppressing or eliminating the influence of interference (at a frequency of 50 Hz) in an active high-voltage power facility are discussed.
Kostić Vojin I.
doaj   +1 more source

Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions

IEEE Access, 2023
One important objective of this article is to present a novel approach to study the current density and ground surface potential around the area surrounding earthed and isolated systems in the event of a line-to-earth fault.
Osama E. Gouda, Adel Z. El Dein, Elsayed Tag-Eldin, Matti Lehtonen, Mohamed M. F. Darwish   +4 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

A Portable Device for I–V and Arrhenius Plots to Characterize Chemoresistive Gas Sensors: Test on SnO₂-Based Sensors

Nanomaterials, 2023
Chemoresistive nanostructured gas sensors are employed in many diverse applications in the medical, industrial, environmental, etc. fields; therefore, it is crucial to have a device that is able to quickly calibrate and characterize them.
Michele Astolfi, Giulia Zonta, Sandro Gherardi, Cesare Malagù, Donato Vincenzi, Giorgio Rispoli   +5 more
doaj   +1 more source

Modeling and Assessment of Lightning Hazards to Humans in Heritage Monuments in India and Sri Lanka

IEEE Access, 2020
Lightning is one of the inevitable disastrous phenomena which in addition to damaging tall edifices, might also consequently endanger humans due to lightning-human interactions.
Venkatesh Srinivasan, Manjula Fernando, Sarath Kumara, Thirumalini Selvaraj, Vernon Cooray   +4 more
doaj   +1 more source

Design, Modeling, and Analysis of IEEE Std 80 Earth Grid Design Refinement Methods Using ETAP

Applied Sciences, 2023
The design of a compliant, safe, and reliable substation earth grid is not a straightforward process; in most cases, it requires some additional measures to be taken due to various constraints that differ from environment to environment, such as soil ...
Vuyani Michael Nicholas Dladla, Agha Francis Nnachi, Rembuluwani Philip Tshubwana   +2 more
doaj   +1 more source

Fabrication of biomass derived moisture diffusion energy harvester and statistical analysis of governing factors affecting its performance

Energy Reports, 2022
In this study, corn stover was carbonized and subjected to a two-step treatment (milling & surface modification) for the preparation of biomass derived activated carbon (Bio-AC).
Sa-Myeong Gim, Muhammad Ajaz Ahmed, Vilaysit Thithai, Joon Weon Choi   +3 more
doaj   +1 more source

Studying Direct Lightning Stroke Impact on Human Safety Near HVTL Towers Considering Two Layer Soils and Ionization Influence

IEEE Access, 2023
A lightning strike is considered one of the most risky natural phenomena that can lead to human harmful and the surrounding soil layers. To tackle this issue, this article investigates the influence of direct lightning characteristics in terms of human ...
Osama E. Gouda, Adel Z. El Dein, Sara Yassin Omar, Matti Lehtonen, Mohamed M. F. Darwish   +4 more
doaj   +1 more source