Results 31 to 40 of about 61,237 (302)

High current field test of impulse transient characteristics of substation grounding grid

open access: yesThe Journal of Engineering, 2018
It is significant to research the impulse characteristics of substation grounding grid for its optimal design and safe and stable operation. In order to obtain the impulse transient characteristics of substation grounding grid under lightning impulse ...
Xuefang Tong, Xiaohui Dong, Bo Tan
doaj   +1 more source

Grounding Grid Fault Diagnosis With Emphasis on Substation Electromagnetic Interference

open access: yesIEEE Access, 2022
Grounding grid fault diagnosis is essential for the safe operation of a substation. However, the substation vicinity is highly electromagnetic. Therefore, the electromagnetic-based fault diagnosis is vulnerable to electromagnetic interference (EMI). This
Aamir Qamar   +3 more
doaj   +1 more source

Analysis of grounding performance for different bio filler medium effect [PDF]

open access: yes, 2019
The importance of grounding system is when any fault current due to the power system problem, or lightning, can allow that dangerous current passes through the earth.
Abd Karim, Ahmad Zahir Zakwan
core  

Relationship between radar reflectivity thresholds and very low frequency/low frequency total lightning for thunderstorm identification

open access: yesHigh Voltage
To improve our knowledge of the spatio‐temporal correspondence between radar reflectivity and VLF/LF total lightning data, this paper proposes indexes to quantify the horizontal distribution and temporal evolution characteristics between radar composite ...
Yijun Huang   +5 more
doaj   +1 more source

Effect of Non-Homogeneous Soil Characteristics on Substation Grounding-Grid Performances: A Review

open access: yesApplied Sciences, 2021
Designing an effective grounding system for AC substations needs predetermination of ground resistance and ground potential distribution caused by fault current’s presence in the ground.
Navinesshani Permal   +3 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

A BEM approach for grounding grid computation [PDF]

open access: yes, 1994
16th International Conference on Boundary Element Methods, 1994, Southampton, England[Abstract] Grounding systems are designed to preserve human safety and grant the integrity of equipments under fault conditions. To achieve these goals, the equivalent
Casteleiro, Manuel   +2 more
core  

Learning Interpretable Spatial Operations in a Rich 3D Blocks World

open access: yes, 2017
In this paper, we study the problem of mapping natural language instructions to complex spatial actions in a 3D blocks world. We first introduce a new dataset that pairs complex 3D spatial operations to rich natural language descriptions that require ...
Bisk, Yonatan   +3 more
core   +1 more source

Transient behavior of wind towers grounding systems under lightning strikes [PDF]

open access: yes, 2015
Wind turbines, because of their height and localization, are frequently subject to direct lightning strikes. Thus, the investigation on the performance of their grounding system is of paramount interest for the prediction of the potential threats either ...
ARANEO, Rodolfo, CELOZZI, Salvatore
core   +1 more source

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