Results 1 to 10 of about 12,530 (287)

Research on Field Source Characteristics of Leakage Current of Arrester Based on TMR Sensor [PDF]

open access: yesSensors, 2023
The status of zinc oxide (ZnO) arresters is directly related to the safety of power grids. However, as the service life of ZnO arresters increases, their insulation performance may decrease due to factors such as operating voltage and humidity, which can
Yameng Fu   +8 more
doaj   +2 more sources

The Testing Of High Voltage Silicon Carbide Lightning Arresters

open access: yesTikrit Journal of Engineering Sciences, 2022
The majority of high voltage gapped silicon carbide lightning arresters on transmission and sub transmission systems have been in service for over 10 years.
Arkan A. Hussein
doaj   +1 more source

Mitigation of Insulator Lightning-Induced Voltages by Installing Parallel Low-Voltage Surge Arresters

open access: yesEnergies, 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

Characteristics and possibilities of software tool for metal-oxide surge arresters selection [PDF]

open access: yesZbornik 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

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

Study on lightning protection scheme of multi-terminal MMC-MVDC distribution system

open access: yesHigh Voltage, 2020
Based on a ±10 kV three-terminal MMC-MVDC (medium voltage DC distribution system based on modular multilevel converter) system, in this study, the authors mainly study on the influencing factors and protection schemes of the lightning intruding ...
Yuqun Gao   +7 more
doaj   +1 more source

High‐voltage direct current fault current interruption: A technology review

open access: yesHigh Voltage, 2021
This review paper describes fault current interruption principles and various high‐voltage direct currrent (HVDC) circuit breaker technologies. First, fundamentals of HVDC fault current interruption and a generic set of requirements of HVDC circuit ...
Rene P. P. Smeets, Nadew A. Belda
doaj   +1 more source

ELECTRIC STRENGTH OF ARRESTER FOR LIGHTING SHIELDING OF 6-35 KV TRANSMMCSION LINE WITH LIGHTNING OVERVOLTAGE

open access: yesЗаписки Горного института, 2018
The most common device for protection against overvoltages is a valve-type arrester. Due to obsolescence it is proposed to replace valve-type arresters with nonlinear overvoltage limiters or multi-chamber arresters.
R. A. Bel'skii   +2 more
doaj   +1 more source

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   +1 more source

Arrest Chemokines [PDF]

open access: yesFrontiers in Immunology, 2003
ABSTRACTIn most organs, leukocyte attachment to the endothelium of blood vessels requires capture and rolling before firm adhesion is initiated by integrin activation and/or redistribution, which can be initiated by immobilized chemokines binding their cognate receptors on rolling cells.
openaire   +5 more sources

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