Results 21 to 30 of about 15,811,185 (295)

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, Xiaoqian Ma, Jiayu Lu, Weijiang Chen, Li Xie, Yong Ju, Luxing Zhao   +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, Xuefei Liu, Meng Lin, Jie Wang, Tao Jiang, Yibo Wang   +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, Dennis van der Velde, Maik Lühman, Florian Sprünken, Immanuel Hacker, Andreas Ulbig, Michael Andres, Martin Henze   +7 more
doaj   +1 more source

Electric Field Distribution and Dielectric Losses in XLPE Insulation and Semiconductor Screens of High-Voltage Cables

, 2022
This article presents the electric field distribution E and dielectric losses ΔPdiel. in the insulation system of high-voltage cables. Such a system consists of inner and outer semiconductor screens and XLPE insulation. The aim of this study was to
Zbigniew Nadolny
core   +1 more source

Transient voltage stresses in MMC–HVDC links – impulse analysis and novel proposals for synthetic laboratory generation

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, Simon Wenig, Max Goertz, Thomas Leibfried, Frank Jenau   +4 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, Xuegong Yin, Yuhao Liu, Boxue Du, Congzhao Xue   +4 more
doaj   +1 more source

Investigation of impact of DC component on breakdown characteristics for different electric fields under composite AC & DC voltage

, 2022
The valve side of the converter in the high-voltage direct current is subjected to mixed voltages such as composite AC & DC voltage. In this study, the effects of the homogeneity of electric field on breakdown voltage were investigated for different +
İSPİRLİ, MEHMET MURAT, ORAL, BÜLENT
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Support for standardisation of high voltage testing with composite and combined wave shapes

, 2021
As part of the production of equipment for high voltage electricity grids, high voltage tests are performed to verify that the equipment can withstand the operational voltage stresses.
Orrea, A.,, Elg, Alf Peter,, Schichler, U.,, Gockenbach, E.,, Merev, A.,, Garnacho, F.,, Havunen, J.,, Roccato, P. E.,, Steiner, T.,, Meisner, J.,, Gamlin, M.,, Saadeddine, H.,, Lahti, K.,, Backhaus, K.,   +13 more
core  

Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]

, 2010
An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G., Cross, K.J., A. Balestrero, J. W. McBride, G. Tribulato, K. J. Cross, L. Ghezzi, McBride, J.W., Balestrero, A., Ghezzi, L.   +9 more
core   +1 more source