Extracting the Resistive Current Component from a Surge Arrester’s Leakage Current without Voltage Reference [PDF]
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
Detection of Failures in Metal Oxide Surge Arresters Using Frequency Response Analysis [PDF]
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
Modelling of Stray Currents Near a Railway Platform [PDF]
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
The evolution characteristics of leakage current in traction network surge arresters under complex operating conditions [PDF]
Due 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
Influence of ionizing radiation on the stochasticity of overvoltage protection at low, medium, and high voltage levels in gas surge arresters [PDF]
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
Analysis of Zinc Oxide (ZnO) Surge Arrester Connected to Various Ground Electrodes
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
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.
Chaiyaporn Lothongkam +2 more
doaj +1 more source
Failure Risk Assessment of Surge Arrester Using Paralleled Spark Gap
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
The Effect of Cable Aging on Surge Arresters Designed by Genetic Algorithm
The degradation of communication cable insulators reduces the availability of the train control system and is caused by the degrading of data transmission line parameters.
Dariusz Zieliński, Damian Grzechca
doaj +1 more source
Prediction of ZnO Surge Arrester Degradation Based on Temperature and Leakage Current Properties
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

