Results 11 to 20 of about 140,545 (203)

Investigating the Effect of Several Model Configurations on the Transient Response of Gas-Insulated Substation during Fault Events Using an Electromagnetic Field Theory Approach

open access: yesEnergies, 2020
Assessment of very fast transient overvoltage (VFTO) requires good knowledge of the behavior of gas-insulated substation when subjected to very high frequencies.
Muresan Alexandru   +4 more
doaj   +1 more source

Study of Atmospheric Discharge Effects in Distribution Networks with a Novel Residential Buildings Protection Approach [PDF]

open access: yesAdvances in Engineering and Intelligence Systems, 2023
Lightning-induced overvoltage poses a significant threat to electrical equipment and building structures. This study aims to comprehensively investigate lightning overvoltage in low voltage distribution lines under different scenarios, including ...
Meisam Karami, Yazdan Ashgevari
doaj   +1 more source

Modelagem computacional da resposta transitória de sistemas de aterramento por meio de circuitos equivalentes

open access: yesTecnología en Marcha, 2021
De modo a viabilizar a modelagem de sistemas de aterramento em estudos sistêmicos e de cálculo de transitórios e aumentar a exatidão e confiabilidade dos modelos utilizados, circuitos equivalentes devem ser estudados de modo a possibilitar a ...
Arthur Francisco Andrade   +3 more
doaj   +1 more source

Hazard evaluation of ground potential difference within grounding grid on personal safety under impulse current

open access: yesIET Science, Measurement & Technology, 2021
Due to the impedance characteristic of conductor, the ground potential rise is different within grounding grid when impulse current is injected. When staff touches objects with different GPR at the same time, the GPD will be applied to human body ...
Chun Li   +5 more
doaj   +1 more source

Measurement and analysis of impulse grounding impedance of tower grounding device subjected to artificial lightning M‐component

open access: yesIET Generation, Transmission & Distribution, 2023
The impulse grounding impedance of tower grounding device is one of the important factors in the lightning protection evaluation of transmission line. The impulse characteristic test of the actual tower grounding device under lightning was rarely carried
Yi Zhang   +7 more
doaj   +1 more source

Research on Modeling and Simulation of Transient Ground Potential Rise Caused by GIS Disconnector Action

open access: yes南方能源建设, 2022
[Introduction] Massive usage of gas-insulated metal-enclosed switchgear (GIS) has caused serious electromagnetic interference, especially when the isolating switch in GIS is operated with small capacitive current, it does not have arc extinguishing ...
LI Jiahui
doaj   +1 more source

Frequency Domain Analysis of a Wind Turbine Generator Earthing System for Lightning Discharge Currents

open access: yesIEEE Access, 2019
A safe and cost-effective design of a wind turbine generator (WTG) grounding system requires accurate modeling of local soil resistivity, particularly when wind turbines are spatially distributed across a wide area with different soil types and features.
Raghavender D. Goud   +3 more
doaj   +1 more source

Site-Specific Response Analysis (SSRA) and pairs of ground- motions time-history generation of a site in Jakarta [PDF]

open access: yesE3S Web of Conferences, 2020
The purpose of earthquake resistance design of building is to produce a structures that can withstand a certain level of a ground shaking without excessive damage.
I Wayan Sengara, Det Komerdevi
doaj   +1 more source

Terrestrial laser scan error in the presence of dense ground vegetation [PDF]

open access: yes, 2011
Terrestrial Laser Scan (TLS) data are seeing increasing use in geology, geomorphology, forestry and urban mapping. The ease of use, affordability and operational flexibility of TLS suggests that demand for it is likely to increase in large scale mapping ...
Fotheringham, A.S.   +3 more
core   +1 more source

Analysis the influence of corrosion layer on the grounding performance of grounding electrodes

open access: yesIET Generation, Transmission & Distribution, 2020
The grounding electrode buried in soil is prone to corrosion affected by soil and leakage current. The surface of corroded grounding electrodes is wrapped with corrosion product, which affects the normal current dissipation process and weakens the ...
Zhanlong Zhang   +5 more
doaj   +1 more source

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