Results 11 to 20 of about 362,311 (271)

Leakage Current Measurements of Surge Arresters

open access: yesEnergies, 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
doaj   +3 more sources

Effects of Degradation in Textolite Elements of Damaged Surge Arresters

open access: yesEnergies, 2022
The aim of this work was to investigate the effects of the currents flowing through surge arresters on the internal insulating textolite structure. The samples were removed from high-voltage arresters that were taken out of service due to malfunction or ...
Hubert Śmietanka   +4 more
doaj   +2 more sources

The influence of gamma and X-radiation on pre-breakdown currents and resistance of commercial gas filled surge arresters [PDF]

open access: yesNuclear Technology and Radiation Protection, 2005
The aim of this paper is to examine the influence of gamma and X-radiation on relevant characteristics of commercial gas filled surge arresters in the d. c. regime.
Lončar Boris B.   +3 more
doaj   +1 more source

Microstructure and Degree of Degradation of ZnO Varistors in Surge Arresters Due to Operation [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The paper presents the test results for the microstructure of ZnO varistors comprising high voltage gapless surge arresters. The tests were performed on varistors produced in different periods and by various manufacturers.
P. Papliński   +3 more
doaj   +1 more source

Development of a Low-Energy Mobile Current Waveform Impulse Generator for Application in Low Voltage Surge Arresters [PDF]

open access: yesBrazilian Archives of Biology and Technology
Surge arresters are at the forefront of protection against voltage surges. The loss of the protective effect of surge arresters imposes accidents and unplanned shutdowns on the power system.
Tiago Goncalves Zacarias   +9 more
doaj   +1 more source

Considered remedies and diagnostic surge arresters

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Considered remedies and diagnostic surge arresters. Proposed and economically feasible patents and methods (program) selection of fuses for protection and diagnostics of surge arresters.
I. A. Khatanova, D. V. Khatanov
doaj   +1 more source

Application of Deep Learning and Symmetrized Dot Pattern to Detect Surge Arrester Status

open access: yesApplied Sciences, 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   +2 more
doaj   +1 more source

Frequency and Time Series Analysis of Surge Arrester in Power Distribution Systems [PDF]

open access: yesAdvances in Engineering and Intelligence Systems
Surge arresters are essential protective devices in power systems that redirect excess voltage and prevent damage to sensitive equipment. Extensive research has been conducted in electro-thermal modeling for surge arresters to better understand and ...
Alireza Zabihi, Mohammad Parhamfar
doaj   +1 more source

Quality Assessment of Low Voltage Surge Arresters

open access: yesIEEE 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   +1 more source

Generator step up transformer overvoltage protection in EPS power plants [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2015
This paper presents the current state of the overvoltage protection of generator transformers in power plants of the Power Company of Serbia (EPS) and gives a critical overview of their overvoltage protection.
Mrvić Jovan   +2 more
doaj   +1 more source

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