Results 11 to 20 of about 7,913 (283)

Failure Risk Assessment of Surge Arrester Using Paralleled Spark Gap

open access: yesIEEE Access, 2020
Surge arresters are usually used to protect distribution feeders against randomly distributed lightning overvoltages. However, there is a probability of surge arrester failure due to an increase in its absorbed energy over the withstand capability.
Nehmdoh A. Sabiha   +2 more
doaj   +1 more source

Modelling of Stray Currents Near a Railway Platform [PDF]

open access: yes, 2017
The article describes simulations of the occurrence of stray currents in the vicinity of a SUDOPtype railway platform. Stray currents occur in the vicinity of a railway platform during the passage of a railway vehicle.
Cigánek, Jiří   +3 more
core   +1 more source

Prediction of ZnO Surge Arrester Degradation Based on Temperature and Leakage Current Properties

open access: yesJurnal Nasional Teknik Elektro, 2018
Temperature and leakage current on the ZnO arrester are interrelated with each other. In low conduction region, voltage-current characteristics of ZnO surge arrester are highly dependent on temperature.
Novizon Novizon   +5 more
doaj   +3 more sources

Arrest Chemokines [PDF]

open access: yesFrontiers in Immunology, 2003
ABSTRACTIn most organs, leukocyte attachment to the endothelium of blood vessels requires capture and rolling before firm adhesion is initiated by integrin activation and/or redistribution, which can be initiated by immobilized chemokines binding their cognate receptors on rolling cells.
openaire   +5 more sources

Design of MOA potential distribution and temperature distribution wireless acquisition system

open access: yesDianzi Jishu Yingyong, 2018
The protection performance of lightning arrester(MOA) has direct impact on insulation level of the transformer and other electrical equipment , the potential distribution and the temperature distribution of the arrester determines the operating life of a
Li Jiaqi   +5 more
doaj   +1 more source

Analysis of Zinc Oxide (ZnO) Surge Arrester Connected to Various Ground Electrodes

open access: yesEnergies, 2021
This paper presents impulse tests results on a zinc oxide (ZnO) surge arrester connected to four ground electrodes, with its resistance values ranging from 17 Ω to 104 Ω.
Hanis Hamizah Hizamul-Din   +1 more
doaj   +1 more source

Influence of ionizing radiation on the stochasticity of overvoltage protection at low, medium, and high voltage levels in gas surge arresters [PDF]

open access: yesNuclear Technology and Radiation Protection, 2023
The paper considers the possibility of improving the technical characteristics of gas surge arresters for the co-ordination of insulation at low voltage, medium voltage and high voltage levels. The idea for improving the characteristics of a gas
Jusić Alija R.   +2 more
doaj   +1 more source

Estimation of parameters of metal-oxide surge arrester models using Big Bang-Big Crunch and Hybrid Big Bang-Big Crunch algorithms [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2016
Metal oxide surge arrester accurate modeling and its parameter identification are very important for insulation coordination studies, arrester allocation and system reliability.
M.M Abravesh   +3 more
doaj   +1 more source

Application of ANFIS Technique for Wide-Band Modeling of Overvoltage of Single-Conductor Overhead Lines with Arrester above Dispersive and Two-Layer Soils [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
In this paper, an efficient closed-form expression for overvoltage of overhead lines under direct strike in the presence of lightning arresters is presented.
Saeed Reza Ostadzadeh
doaj   +1 more source

Tower grounding improvement versus line surge arresters: comparison of remedial measures for high-BFOR subtransmission lines [PDF]

open access: yes, 2015
This paper presents a technical/economic comparison between remedial measures aimed at improving the lightning performance of an existing Italian three-phase 150-kV overhead line.
GATTA, Fabio Massimo   +4 more
core   +1 more source

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