Results 91 to 100 of about 3,083 (217)

Experimental Study on Performance of SF6+N2 Mixed Gas Insulation

MATEC Web of Conferences, 2016
This paper designed and constructed a 126kV GIS partial discharge test platform, performed frequency breakdown tests and lighting impulse tests at temperature of -30~20℃to SF6/N2 gas mixture.
Lu Gang, Su Zhen Xi, Xu Ou, Zhang Liang, Lan Gong Yu, Liu Yang, Zhang Hong Da   +6 more
doaj   +1 more source

(A) Study on the Electrical Characteristics of ZnO Blocks by a Multiple-Lightning Impulse Current [PDF]

This thesis deals with the changes of the electrical characteristics of ZnO blocks by the application of a single and a multiple-lightning impulse current.
李鐘赫
core  

Lightning earthing evaluation by impulse and high frequency methods

, 2007
Uziemienia odgromowe przeznaczone do odprowadzania do ziemi prądów piorunowych pracują w zakresie znacznie szybszych przebiegów (žs) niż uziemienia robocze (ms), a więc wymagają innych metod badań, zwłaszcza uwzględniających spadki indukcyjne w systemie ...
Wojtas, S.
core  

Effect of Coaxial Cables on Measurements Performed with Resistive Lightning Impulse Voltage Dividers

, 2018
The effect of the coaxial cable type and length on the lightning impulse parameters is often neglected. However, studies have shown that the coaxial cable length can affect the parameters that are calculated according to IEC 60060-1:2010.
Passon, Stephan,, Hällström, Jari; id_orcid, Havunen, Jussi,, Jussi Havunen, Bergman, Anders,, Jari Hallstrom, Bergman, Anders, Passon, Stephan, Hallstrom, Jari,, Havunen, Jussi; id_orcid, Stephan Passon, Anders Bergman   +11 more
core   +1 more source

Time Domain Analysis of the Lightning Interaction with Wave Energy Converters

, 2018
In this work, we present a simulated study of lightning interactions with wave power generators submerged in seawater in Lysekil, in the southwest coast of Sweden.
Cooray, Vernon,, Lobato, André,, Hettiarachchi, Pasan,, Leijon, Mats,   +3 more
core  

Variation of lightning impulse current wave shape at P1 striking point.

, 2019
Variation of lightning impulse current wave shape at P1 striking point.
M. A. M. Radzi (4452457), M. Izadi (6944879), N. H. Zaini (6944885), M. Z. A. Ab-Kadir (6944876), N. I. Ahmad (6944882), M. S. M. Nasir (6944873)   +5 more
core   +1 more source

Characteristics and influence of lightning impulse discharge of zero-value insulator strings in heavy rainfall environment

电力工程技术
Heavy rainfall can bridge the sheds of insulators on transmission lines, substations, and converter stations with continuous water columns, leading to electric field distortion.
Bingbing DONG, Yu QIAO, Xia YAO
doaj   +1 more source

Study on Transient Overvoltage and Surge Arrester Electrical Stresses in Offshore Wind Farms Under Multiple Lightning Strokes

Journal of Marine Science and Engineering
Lightning strikes are a major cause of wind turbine (WT) damage, with approximately 80% of cloud-to-ground lightning strikes exhibiting a multi-stroke characteristic. Therefore, studying the transient overvoltages induced by multiple lightning strokes is
Jie Zhang, Yong Wang, Jun Xiong, Junxiang Liu, Lu Zhu, Chao Huang, Jianfeng Shi, Yongxia Han   +7 more
doaj   +1 more source

Photonic Voltage Transducer with Lightning Impulse Protection for Distributed Monitoring of MV Networks. [PDF]

Sensors (Basel), 2020
Fusiek G, Niewczas P.
europepmc   +1 more source

Evaluation of Step Response of Transient Recorders for Lightning Impulse

, 2017
High voltage equipment will be subjected to several types of electrical stress during operation. A battery of factory tests is defined to ensure that the equipment will perform satisfactorily in service. One of the crucial tests is to apply a simulated lighting impulse as standardised to a double-exponential impulse with at front time of 1.2 µs (± 30 %)
Bergman, Anders, Elg, Alf Peter, Hällström, Jari   +2 more
openaire   +2 more sources