Results 11 to 20 of about 90,241 (306)

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   +2 more sources

An Optimised High Current Impulse Source [PDF]

open access: yes, 2004
Starting from a predefined 8/20 µs impulse current, the design and construction of an impulse current source is derived. In the first step an equivalent circuit is defined that meets exactly the predefined impulse current. In the next step the components that are required to realise the equivalent circuit diagram are chosen and modelled by their ...
Kempen, S., Peier, D.
openaire   +3 more sources

An Increase of Impact Toughness of Low-Carbon Steel Caused by Impulse Electric Current Treatment [PDF]

open access: yesMetalurgija, 2007
Investigation results indicating the influence of high-density impulse electric current on impact toughness of Charpy specimens manufactured from low carbon steel are presented.
Stepanov, G., Mamuzić, I., Babutsky, A.
doaj   +1 more source

Equivalent circuit model of tower based on full-wave analysis

open access: yesEnergy Reports, 2022
The tower model is very important for the assessment of lightning protection for transmission line. The parameters of tower model mainly rely on the impulse experiments of tower.
Chun Li   +6 more
doaj   +1 more source

Ionospheric current contribution to the main impulse of a negative sudden impulse [PDF]

open access: yesEarth, Planets and Space, 2014
The geomagnetic field response to a moderate-amplitude negative sudden impulse (SI−) that occurred on 14 May 2009 at 10:30 UT was examined at 97 geomagnetic observatories situated all over the globe. The response signature contains a contribution from magnetospheric as well as ionospheric currents.
Vichare, Geeta   +3 more
openaire   +1 more source

A Novel VSG Control Strategy for UPS Voltage Source Inverter with Impulsive Load

open access: yesEnergies, 2022
This paper proposes a novel control strategy to alleviate the impulsive current for Uninterruptible Power Supply (UPS), which is designed based on the theory of virtual synchronous generator (VSG) and dynamic switching method.
Guofeng He   +4 more
doaj   +1 more source

Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]

open access: yes, 2006
In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Jorge Ramirez   +3 more
core   +1 more source

Impulse Characteristics of Highly Wetted Soils [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2023
It has been well accepted that under high impulse conditions, ionisation process in soil would occur, causing the ground resistance value to fall to a lower value than that obtained at low voltage low current, RDC.
REFFIN Muhd Shahirad   +4 more
doaj  

Impulsive SICNNs with chaotic postsynaptic currents

open access: yesDiscrete and Continuous Dynamical Systems - B, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fen, Mehmet Onur, Akhmet, Marat
openaire   +4 more sources

Impulsivity: current and future trends in pharmacological treatment [PDF]

open access: yesExpert Review of Neurotherapeutics, 2010
: • Functional impulsivity, associated with faster information processing, thus facilitating quicker responses to envi-ronmental challenges, and improving the individual’s adaptation to the environment;• Dysfunctional impulsivity, which leads to harmful consequences for the individual or for others.
María Dolores, Braquehais   +2 more
openaire   +2 more sources

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