Results 41 to 50 of about 309,411 (142)
Lightning Impulse Ageing of HV Cable Insulation
, 2009 Lightning impulses can lead to accelerated ageing of extruded cables. Electrical behaviour of a dielectric material when experiencing a lightning impulse is different to that for DC or power frequency applied voltages.
Dao, N L, Swingler, S G, Lewin, P L
core +1 more source
机车电传动, 2022 The traction power supply system will have high amplitude transient overvoltage after lightning stroke, which will affect the stable operation of railway transportation system.
XIE Xuefang
doaj
Analysis of Lightning Transient Characteristics of Short-Length Mixed MMC-MVDC Transmission System
IEEE Access, 2023 Medium voltage direct current (MVDC) transmission system are growing due to their assistive quality in conventional grid and compatibility with renewable power network. MVDC distribution links with “Mixed” overhead (OH) & underground
Muhammad Usman +2 more
doaj +1 more source
Bond Formation: Shaken, Not Stirred
Chemistry – A European Journal, EarlyView.Shaking of seismo‐molecules efficiently transforms kinetic energy into storable chemical potential, unlocking high‐utility Gibbs free energy. This innovative mechanism pioneers uncharted scientific frontiers, introducing fascinating phenomena like seismochemistry, seismochromism, and seismofluorescence that redefine the boundaries of molecular ...
Alexander D. Q. Li
wiley +1 more source
Analysis of polarity characteristics of lightning attachment and protection to wind turbine blades
Results in EngineeringThis study investigated the attachment of lightning polarity and protection to wind turbine blades. Positive-polarity switching impulse lightning exhibits a shielding effect on the wind turbine blade receptor, whereas negative-polarity switching impulse ...
Jeong-Min Woo, Sung-Man Kang, Munno Ju
doaj +1 more source
Energies, 2022 Experimental and computer investigations were conducted into long-duration impulse current distribution in the lightning protection system, supplying network, and electrical installation of a test house that was equipped with household appliances.
Grzegorz Masłowski, Sebastian Hajder
doaj +1 more source
A Comprehensive Review of Fault‐Current Limiter Technologies for Smart and Resilient Power Systems
Energy Science &Engineering, EarlyView.This review compares superconducting, solid‐state, and hybrid fault‐current limiters (FCLs) for modern alternating current, direct current, and hybrid grids. It shows that optimal FCL selection depends on fault characteristics, network configuration, voltage level, protection coordination, and resilience requirements rather than on a universally ...
Abdelrahman Farghly +5 more
wiley +1 more source
Lightning Impulse Ageing of HDPE
, 2009 This work is concerned with the hypothesis that lightning impulses can lead to accelerated ageing of extruded polymeric cables. The behaviour of an insulation material when suffering lightning impulses is different from that for DC or power frequency ...
Dao, N L, Swingler, S G, Lewin, P L
core +1 more source
Breakdown process on rod–rod air gap under oscillating lightning impulse voltage
High Voltage, 2020 This study presents the discharge process on rod–rod electrodes under oscillating lightning impulse voltage. For this purpose, a measurement system has been developed to record the discharge currents at both rod electrodes simultaneously and to ...
Akif Gürlek
doaj +1 more source
Mechanism Analysis and Multiphysics Validation of Lightning Attenuation in Constrained Space
IEEE Access, 2022 The problem of resistance reduction has always been the key and difficult point of lightning protection. However, the problem of reducing the grounding resistance efficiently has not been solved. A method is introduced in this paper to solve this problem
Yang Lu +3 more
doaj +1 more source