Results 11 to 20 of about 438,424 (336)
Effects of Degradation in Textolite Elements of Damaged Surge Arresters
Energies, 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
Negative Phenomenon of Jumping Operation of Retractable-Type Fall Arresters
Applied SciencesThis article presents the results of research into the operation of retractable-type fall arresters used for fall protection in conjunction with flexible anchor points.
Marcin Jachowicz, Joanna Szkudlarek
doaj +2 more sources
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
The influence of gamma and X-radiation on pre-breakdown currents and resistance of commercial gas filled surge arresters [PDF]
Nuclear 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
Записки 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
Frontiers 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
High‐voltage direct current fault current interruption: A technology review
High 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
Considered remedies and diagnostic surge arresters
Известия 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
Energies, 2020 Direct lightning discharges in overhead distribution networks invariably cause serious insulation damage, frequently leading to the electric system’s partial or total shutdown. Installing lightning arresters can be very effective, and it is commonly used
Raphael Pablo de Souza Barradas +5 more
doaj +1 more source
Improved method for extracting resistive leakage current of surge protectors
The Journal of Engineering, 2019 The resistive leakage current in surge protectors is an important indicator to characterise its aging degree. It is of great significance to accurately extract the resistive components from the total leakage current for online monitoring of the surge ...
Wei Xu, Feng Sheng
doaj +1 more source