Results 11 to 20 of about 672,421 (219)
Energies, 2023 Electrical heating rods are a commonly used application for switch point heating in order to keep switch points free from ice and snow. Clamps made of spring steel usually attach the heating rod to the rail.
Markus Schladitz +2 more
doaj +1 more source
Energies, 2021 The increasing number of power electronic devices in electrical grids may lead to harmonic distorted voltages, which are considered to be possible causes of component failures. In this study, the dielectric losses of epoxy polymer and functionally filled
Thomas Linde +5 more
doaj +1 more source
Power cable stresses caused by transmission line faults in next generation VSC-MMC systems
The Journal of Engineering, 2019 Until today, HVDC systems based on Modular Multilevel Voltage Source Converters (VSC-MMC) have exclusively been realised with cross-linked polyethylene (XLPE) cable transmission in monopolar configuration.
Philipp Tünnerhoff +3 more
doaj +1 more source
Charging models for airborne suspended particles around HVDC lines
High Voltage, 2021 Ground total electric field (GTEF) is a vital parameter in the field of electromagnetic environment of high voltage direct current (HVDC) lines. Some experimental works reported that airborne suspended particles can be charged in the corona ion flow of ...
Kun He +6 more
doaj +1 more source
Transmission Line Fault Diagnosis Method Based on Improved Multiple SVM Model
IEEE Access, 2023 The accurate diagnosis of transmission line fault types is a prerequisite for quickly removing faults and restoring power supply, as well as the key to effectively reducing user economic losses, ensuring stable operation of the power system.
Peichuan Sun +5 more
doaj +1 more source
Study on internet of things architecture of substation online monitoring equipment [PDF]
MATEC Web of Conferences, 2021 This paper introduces the structure of the existing on-line monitoring system, and analyzes the problems of poor compatibility and reliability of IED in different manufacturers.
Zhang Hejun +5 more
doaj +1 more source
On specification-based cyber-attack detection in smart grids
Energy Informatics, 2022 The transformation of power grids into intelligent cyber-physical systems brings numerous benefits, but also significantly increases the surface for cyber-attacks, demanding appropriate countermeasures.
Ömer Sen +7 more
doaj +1 more source
Electrical Treeing of SiR and SiR/Fe3O4 Nanocomposites in High Magnetic Field
IEEE Access, 2023 This paper investigates the effects of high magnetic field on electrical treeing of silicone rubber (SiR). Experimental results show that electrical trees are more easily to be initiated and spread further along the direction of electric field under the ...
Mingyang Wang +4 more
doaj +1 more source
High Voltage, 2018 To evaluate and optimise insulation coordination concepts for state of the art high-voltage direct current (HVDC) transmission systems, appropriate test voltage shapes are required for laboratory imitation of occurring stresses.
Claudius Freye +4 more
doaj +1 more source
Partial Discharge Behaviour of a Protrusion in Gas-Insulated Systems under DC Voltage Stress
Energies, 2020 High reliability, independence from environmental conditions, and the compact design of gas-insulated systems will lead to a wide application in future high voltage direct current (HVDC) transmission systems.
Thomas Götz +2 more
doaj +1 more source