Results 21 to 30 of about 12,530 (287)

Arresting serotonin [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
[No abstract available]
Atheir, Abbas, Bryan L, Roth
openaire   +2 more sources

The effect of lightning impulse characteristics and line arrester to the lightning protection performance on 150 kV overhead lines: ATP-EMTP computational approach

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2019
This simulation study presents the effect of lightning strikes on the performance of arresters at 150 kV overhead lines. Lightning strikes have several parameters that affect the performance of line arresters (LA), namely lightning charge, and impulse ...
Fri Murdiya   +4 more
doaj   +1 more source

Degradation Processes in Shield-Centring Elements of Surge Arresters [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
This paper presents the results of testing samples of shield-centering elements from medium-voltage surge arresters. The elements were made of TSE glass textolite.
P. Papliński   +5 more
doaj   +1 more source

Investigation of Diagnostic Techniques for Metal Oxide Surge Arresters [PDF]

open access: yes, 2005
Gapless metal oxide surge arresters(MOSA)have been available in the market for many years since they were first introduced in the 1970's. The aim of this study is to investigate some reliable diagnostic techniques to assess the condition of a metal oxide
Mardira, Karl P.   +2 more
core   +1 more source

Calculation and protection on the lighting intruding waves of 550 kv GIS substation

open access: yesThe Journal of Engineering, 2018
Electromagnetic Transient Programme has been used to calculate the lightning intruding wave of 550 kV GIS substation. The effects of mode operation, surge impedance and length of cable have been considered in the process of calculation.
Dongpeng Sui   +5 more
doaj   +1 more source

Electrical field distribution of 35 KV Igla under polluted and ice-covered situation at power frequency

open access: yesThe Journal of Engineering, 2019
Lightning striking on power system may lead to severe accident and huge losses, which is the reason why line arresters are needed. During operation, the electrical field concentration in line arrester may lead to ablation and accelerated aging of ...
Guo Jie   +4 more
doaj   +1 more source

Reliability centered condition-based maintenance of zinc oxide lightning arresters: concept, process and case study

open access: yesFrontiers in Energy Research
Introduction: The reliability of power equipment is the foundation for maintaining the reliability of the power grid. As a core device for limiting overvoltage in the power grid, lightning arresters have received widespread attention, and ensuring their ...
Fan Yang   +5 more
doaj   +1 more source

Study on overvoltage of hybrid LCC-VSC-HVDC transmission

open access: yesThe Journal of Engineering, 2018
Hybrid line commutation converter-voltage-source converter high-voltage direct current transmission (LCC-VSC-HVDC) power transmission has unique technical advantages, but its overvoltage study is not sufficient at present.
Dizhen Xu   +4 more
doaj   +1 more source

Leakage Current Measurements of Surge Arresters

open access: yesEnergies, 2023
The paper presents the methods of assessing the technical condition of varistor surge arresters used in laboratory tests and in operation—performed without disconnecting the arresters from the network.
Marek Olesz   +2 more
doaj   +1 more source

Development and application of lightning flashover limited equipment for 220 kV AC transmission line

open access: yesThe Journal of Engineering, 2019
In order to solve the operation problems of traditional lightning protection equipment (for example, line arrester and parallel gap) for 220 kV AC transmission line, a novel lightning protection equipment – lightning flashover limited equipment for 220 ...
Wei Cao   +6 more
doaj   +1 more source

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