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.
Joze Pihler, Miro Milanović
exaly +4 more sources
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.
Normiza Mohamad Nor
exaly +3 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
Energy Reports, 2023 Overvoltage is a critical problem of Thailand’ distribution system. The electrical protection device in the distribution system needs to be able to support this level of overvoltage.
Suntiti Yoomak
exaly +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
Application of Deep Learning and Symmetrized Dot Pattern to Detect Surge Arrester Status
Applied Sciences (Switzerland), 2022 Surge arresters primarily restrain lightning and switch surges in the power system to avoid damaging power equipment. When a surge arrester fails, it leads to huge damage to the power equipment.
Meng-Hui Wang, Shiue-Der Lu
exaly +3 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
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 Francisco Andrade +1 more
exaly +3 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.
Raju Kannadasan, Valsalal Prasad
exaly +3 more sources
Comparative Studies on Degradation of Varistors Subjected to Operation in Surge Arresters and Surge Arrester Counters [PDF]
Archives of Metallurgy and Materials, 2020 The paper presents results of investigation of microstructure and micro-hardness for material of ZnO varistors applied to 110 kV surge arrester and surge arrester counter.
P. Papliński +6 more
doaj +2 more sources