Results 41 to 50 of about 666,363 (220)

PERFORMANCE OF PARALLEL SURGE ARRESTERS

open access: yesJournal of Energy - Energija, 2022
The operation of parallel surge arresters can improve energy absorption capability if the arresters are   similar and are installed close to each other. However, it has been reported that any small difference in   the individual V-I characteristics can lead to unbalance in current sharing. When the arresters are   installed some distance away from each
Haddad, A., Griffiths, H., Osborne, M.
openaire   +2 more sources

Aging monitoring and fault positioning for zinc oxide surge arresters based on the fifth harmonic of the leakage current

open access: yesFrontiers in Physics
Current techniques for aging monitoring and fault positioning for zinc oxide surge arresters usually use the third harmonic of the leakage resistive current.
Yongling Lu   +6 more
doaj   +1 more source

ADJUSTMENT OF THE MATLAB SURGE ARRESTER MODEL PARAMETERS

open access: yesТехнічна електродинаміка, 2020
This article proposes a method for the parameters adjustment of the Matlab Simscape library Surge Arrester block. It is based on building of nonlinear V-I characteristic by approximation of residual voltage and impulse current obtained from manufacturer ...
О.Г. Шполянський
doaj   +1 more source

Simulation and Analysis of Protection of Electrical Networks against Lightning Strikes Using ATP/EMTP and MATLAB/SIMULINK

open access: yesAlgerian Journal of Signals and Systems
The objective of my work is the simulation and analysis of the protection of electrical networks against lightning strikes. To achieve this goal, I will use the simulation programs ATP/EMTP and MATLAB/SIMULINK to simulate a lightning strike in two cases:
Aissa SOULI
doaj   +1 more source

Thermal behaviour analysis in a porcelain-housed ZnO surge arrester by computer simulations and thermography

open access: yesHigh Voltage, 2019
In this article, an analysis of heat transfer in a porcelain-housed ZnO surge arrester is presented. Due to the fact that ZnO-based surge arresters are key components for protection and reliability of electrical systems, it is necessary to seek ...
Arthur F. Andrade   +5 more
doaj   +1 more source

Evaluation of the EMC environment generated by a static var compensator [PDF]

open access: yes, 2009
Describes an evaluation of the EMC environment generated by a static var ...
Li, Q., Siew, W.H., Wang, W., Zhang, L.
core  

A wireless system for monitoring leakage current in electrical substation equipment [PDF]

open access: yes, 2016
In this paper, the design and the development of a remote system for continuous monitoring of leakage currents and ground currents in high voltage electrical substations are proposed.
Bogias, A. C.   +4 more
core   +1 more source

Reliability centered condition-based maintenance of zinc oxide lightning arresters: concept, process and case study

open access: yesFrontiers in Energy Research
Introduction: The reliability of power equipment is the foundation for maintaining the reliability of the power grid. As a core device for limiting overvoltage in the power grid, lightning arresters have received widespread attention, and ensuring their ...
Fan Yang   +5 more
doaj   +1 more source

Selection and coordination of surge arresters for switching transient mitigation in photovoltaic power plants [PDF]

open access: yes, 2017
: Photovoltaic energy generation has become a popular renewable alternative to conventional energy generation that utilise fossil fuels. However, given the diversity and complexity of these PV plants, it is imperative that such plant equipment be ...
Bokoro, P.   +3 more
core  

Modeling Metal Oxide Surge Arrester for the Modern Polarization Based Diagnostics [PDF]

open access: yes, 2005
Recently a number of new non-destructive diagnostic techniques have been investigated for the reliable condition assessment of the ageing of metal oxide surge arrester (MOSA).
Mardira, K. P., Saha, T. K.
core   +1 more source

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