Results 151 to 160 of about 10,909,381 (195)

Impact of Frequency-Dependent Soil on Transient Ground Potential Rise of Counterpoise Electrodes

IEEE International Conference on Industry Applications, 2021
Tower-footing grounding impedance has a fundamental impact on the generated overvoltages in power system when a transmission tower is hit by lightning. In order to compute accurately the tower-footing grounding impedance, the frequency dependence of soil
A. J. D. de Araújo, W. C. da Silva, J. Pissolato   +2 more
semanticscholar   +1 more source

Impact of Different Frequency-Dependent Soil Models in Transient Ground Potential Rise

IEEE International Conference on Industry Applications, 2021
The frequency dependence of soil electrical parameters must be considered for a precise computation of the electrode grounding impedance and of the transient ground potential rise (GPR) generated by an injected lightning current.
A. J. D. de Araújo, W. L. M. de Azevedo, J. Pissolato   +2 more
semanticscholar   +1 more source

The Distribution of Ground Potential around Grounding grids under a Direct Lightning Strike

International Conference on Logic Programming, 2022
Human safety is a major concern in lightning disasters. The step voltage around grounding grids under a direct lightning strike may cause an electric shock to the human body and result in casualty.
Zhe Li, Yuxuan Ding, Jin-Xin Cao, Ya-Ping Du, Chuanzhen Jia, Xian-Gen Zhao   +5 more
semanticscholar   +1 more source

CALCULATION AND SIMULATION OF GROUND POTENTIAL RISE IN COMBINED CYCLE POWER STATION

, 2020
The electrical power system is subjected to ground faults several times, during lifetime, raising the ground potential (GPR), dangerous and might result into electric shock and/or loss of life to O&M personnel, stakeholder or animal.
Pankaj Kumar, Md Irshad Alam, Vivek Kumar, Gaurav Priye, M. Kumar, Anupama   +5 more
semanticscholar   +1 more source

Appropriate Fall-of-Potential Method form selection to independently verify Ground Potential Rise

2025 5th International Conference on Electrical, Computer and Energy Technologies (ICECET)
A ground is a safety critical system, in that its ongoing correct operation is essential to maintaining an acceptable level of risk with regard personnel and public safety.
Darren Woodhouse
semanticscholar   +1 more source

Filtered Frequency Spectrum Method to Compute the Ground Potential Rise Due to Lightning Strikes

IEEE Power & Energy Society General Meeting
The concerns regarding the Ground Potential Rise (GPR), which is generated by lightning strikes and can result in hazardous voltages in the vicinity of ground electrodes, have driven the development of models for Lightning Protection Systems (LPS) that ...
J. L. A. D'Annibale, W. L. M. de Azevedo, W. C. da Silva, A. J. D. de Araújo, J. Pissolato   +4 more
semanticscholar   +1 more source

Global and Brazilian Perspectives on Managing Ground Potential Rise at Overhead AC Transmission Structures during Power Frequency Faults : Invited Lecture: CIGRE Technical Brochure 694 Tutorial

2019 International Symposium on Lightning Protection (XV SIPDA), 2019
The awareness of the potential safety risk is paramount in the safe operation of overhead transmission lines. The consequence of safety hazards from touch, step and transferred voltages due to Ground Potential Rise (GPR) cannot be ignored or under ...
W. Chisholm, J. Jardini, Paulo Edmundo Freire, CA George Watt, FR Lionel Figueroa, BR Oswaldo Regis   +5 more
semanticscholar   +1 more source

Ground Potential Rise at Various Locations from the Ground Electrodes

2026 13th International Conference on Electrical and Electronics Engineering (ICEEE)
The rise in electric potential at the ground electrode and in its vicinity would occur when the high current flows into the respective ground electrode. The ground potential rise (GPR) in general is reduced for the low fault current and ground resistance
Usman Muhammad, N. M. Nor, Nuhu Dan-Azumi Muhammad, N. Ahmad   +3 more
semanticscholar   +1 more source

Optimization of Multilayer Earth Structure by using Steepest Descent Method and Estimation of Transient Ground Potential Rise in Substation

IEEE PES Asia-Pacific Power and Energy Engineering Conference, 2018
The purpose of this paper is to analyse the impact of ground potential rise in the design of substation. Investigation of soil structure in the substation site is the pre-requirement to design the substation.
R. Senthilkumar, K. Selvakumar, K. Nagaraian   +2 more
semanticscholar   +1 more source

The Potential of 3D GPR for Imaging and Characterizing Permafrost Regions

International Workshop on Advanced Ground Penetrating Radar
Permafrost environments are considered as particularly vulnerable to climate change. As arctic temperatures are expected to continuously rise, permafrost thawing is expected to have a major impact on landscapes and ecosystems, also bearing the risk of ...
P. Koyan, J. Tronicke, J. Guillemoteau, P. Overduin   +3 more
semanticscholar   +1 more source