Results 21 to 30 of about 577,169 (349)
Investigation of microstructure of ZnO varistors taken from surge arrester counters [PDF]
Archives of Metallurgy and Materials, 2019 The paper presents investigations of microstructure of varistors of damaged surge arrester counters. A similar ZnO varistor, not subjected before to operation, was a point of reference in this research.
P. Papliński +3 more
doaj +3 more sources
Circuit-based method for extracting the resistive leakage current of metal oxide surge arrester
Bulletin of Electrical Engineering and Informatics, 2020 Resistive leakage current based condition assessment of metal oxide surge arrester (MOSA) is one of the most extensively employed technique to monitor its degradation.
A. H. Khavari +2 more
semanticscholar +3 more sources
Modelling of Stray Currents Near a Railway Platform [PDF]
Advances in Electrical and Electronic Engineering, 2017 The article describes simulations of the occurrence of stray currents in the vicinity of a SUDOP-type railway platform. Stray currents occur in the vicinity of a railway platform during the passage of a railway vehicle.
Stanislav Zajaczek +3 more
doaj +3 more sources
Optimized Surge Arrester Allocation Based on Genetic Algorithm and ATP Simulation in Electric Distribution Systems [PDF]
Energies, 2019 The efficient protection of electric power distribution networks against lightning discharges is a crucial problem for distribution electric utilities.
G. Rocha +8 more
semanticscholar +2 more sources
High 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 +2 more sources
ANALYSIS OF DIFFERENT MODELS OF MOA SURGE ARRESTER FOR THE TRANSFORMER PROTECTION
, 2018 Circuit breakers, which can operate within 50 ms, are too slow to protect against lightning or switching surges. Lightning surges can rise to peak levels within a few microseconds, and switching surges within few hundred microseconds, fast enough to ...
A. Abugalia, M. Shaglouf
semanticscholar +2 more sources
Modelling and validation of metal oxide surge arrester for very fast transients
High Voltage, 2018 Metal oxide surge arrester models that are currently on rounds suffer from certain deficiencies and as a consequence, they are not in position to portray accurately the arrester residual voltages.
Kannadasan Raju, Valsalal Prasad
doaj +2 more sources
Quality Assessment of Low Voltage Surge Arresters
IEEE Access, 2022 Users expect reliable operation of the surge arrester during overvoltages, which may originate from a switching process or a lightning discharge. The necessary conditions to guarantee these expectations are: appropriate construction of the surge arrester,
Leszek S. Litzbarski +6 more
doaj +2 more sources
Energies, 2022 Metal oxide surge arresters (MOSAs) are a popular solution for dealing with overvoltages due to lightning and switching in power distribution networks. As a result, a MOSA’s performance and longevity have a significant impact on the quality of energy and
Behnam Ranjbar +3 more
semanticscholar +1 more source
Analysis of Zinc Oxide (ZnO) Surge Arrester Connected to Various Ground Electrodes
Energies, 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