Leakage Current Measurements of Surge Arresters
Energies, 2023 The paper presents the methods of assessing the technical condition of varistor surge arresters used in laboratory tests and in operation—performed without disconnecting the arresters from the network.
Marek Olesz +2 more
exaly +4 more sources
The evolution characteristics of leakage current in traction network surge arresters under complex operating conditions [PDF]
Scientific ReportsDue to frequent load fluctuations, significant impacts, and substantial harmonic distortion on heavy-load railways, leakage currents monitored by surge arresters exhibit considerable variation.
Wang Pengxiong +3 more
doaj +2 more sources
Detection of Failures in Metal Oxide Surge Arresters Using Frequency Response Analysis [PDF]
Sensors, 2023 This work presents an innovative application of Frequency Response Analysis (FRA) in order to detect early degradation of Metal Oxide Surge Arresters (MOSAs). This technique has been widely used in power transformers, but has never been applied to MOSAs.
Tiago Goncalves Zacarias +9 more
doaj +2 more sources
Extracting the Resistive Current Component from a Surge Arrester’s Leakage Current without Voltage Reference [PDF]
Sensors, 2021 This article presents the development of the theoretical background and the design of an electronic device for monitoring the condition of a gapless Metal Oxide Surge Arrester (MOSA). The device is intended to be used online.
Vid Vončina +2 more
doaj +2 more sources
Surge arrester leakage current modeling based on pollution layer electrical conductivity estimation [PDF]
Scientific ReportsThe surface leakage current (LC) of metal oxide surge arresters (MOSA) is highly dependent on environmental conditions. This factor influences the modeling of MOSA leakage current as an alternative solution to laboratory tests.
Arian Hoseini Nejadiyan Kooshki +1 more
doaj +2 more sources
The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors [PDF]
Nuclear Technology and Radiation Protection, 2022 The research presents an experiment with a model of an electronic generator for energy injection into the plasma of a fusion reactor. By recording a non-ionizing field in the vicinity of a fusion reactor, it was determined that this field has an
Aranđelović Nemanja M. +5 more
doaj +1 more source
Energies, 2023 In this paper, we propose a mitigation method for reducing lightning-induced insulator voltages based on the installation of low-voltage surge arresters aligned parallelly to the insulator.
André M. de Morais +2 more
doaj +1 more source
Degradation Processes in Shield-Centring Elements of Surge Arresters [PDF]
Archives of Metallurgy and Materials, 2023 This paper presents the results of testing samples of shield-centering elements from medium-voltage surge arresters. The elements were made of TSE glass textolite.
P. Papliński +5 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]
Nuclear 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
Characteristics and possibilities of software tool for metal-oxide surge arresters selection [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2012 This paper presents a procedure for the selection of metal-oxide surge arresters based on the instructions given in the Siemens and ABB catalogues, respecting their differences and the characteristics and possibilities of the software tool.
Đorđević Dragan +2 more
doaj +1 more source