Results 11 to 20 of about 884 (177)
IEEE Access, 2023 Flashover characteristics are closely related to the electrical field distribution on the surface of oil-paper insulation. In this study, the effects of electrical field and DC voltage components on the creepage flashover characteristics of oil-paper ...
Jin Fubao, Zhou Yuanxiang
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IEEE Access, 2020 This paper informs on the flashover strength of three materials: Delrin (polyoxymethylene), HDPE (high-density polyethylene) and Ultem (polyetherimide) with smooth surface finishes, in zero-grade air at -0.5, 0 and 0.5 bar gauge, and at <; 10%, ~50 ...
Ruairidh W. Macpherson +4 more
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Ain Shams Engineering Journal, 2023 The aim of this work is to model the influence of uneven contamination distribution under various humidity on the pollution flashover voltage of 11 kV porcelain insulator disc. Four scenarios of contamination distribution were proposed to test the sample
Ali Ahmed Salem +7 more
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Insulator fault feature extraction system of substation equipment based on machine vision
IET Networks, EarlyView., 2022 Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang +4 more
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Effect of Temperature on Creeping Flashover Voltage of Nanofilled Oil-Pressboard Insulation
IEEE Access, 2020 Creeping flashover (surface discharge) at oil-pressboard interface is considered a serious failure of the insulation system in power transformers. In this paper, creeping flashover voltage at oil-pressboard interface using the concept of nanofluids is ...
Mohamed E. Ibrahim +3 more
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Flashover and Transformer Voltage
IEEJ Transactions on Industry Applications, 2010 This thesis stated many examples about transformer voltage on the direct current motor and generator that those were measured. They suggest that a flashover occurrence often has an indirect influence.
Sugimoto, Kensho +2 more
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IEEE Access, 2022 A suitable, non-standard method for artificial pollution testing using simulated acid rain pollution in a laboratory was developed in this work. The method is applicable to a wide range of climatic conditions and rain acidities.
Chibuike Ilomuanya +2 more
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Unraveling the “U-Shaped” Dependence of Surface Flashover Performance on the Surface Trap Level
IEEE Access, 2019 The effects of surface traps on surface flashover remain controversial. To clarify the relation between surface flashover and surface trap level, in this work, the surface trap level of epoxy composites was modified by nanoparticles incorporation ...
Shengtao Li +6 more
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The Effect of a Vertical Electric Field on the Surface Flashover Characteristics of a Bushing Model
Energies, 2018 High-voltage bushings play a crucial role in energy conveyance. Their specialized electric structure makes the bushing more vulnerable to surface discharge.
Mingxi Zhu +5 more
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IEEE Access, 2018 Oil-paper insulation will inevitably endure impulse voltage with a superimposed dc voltage (superimposed voltage) because of introduced lightning or switching, which can induce charge accumulation and trigger flashover during the operation of a converter
Boxue Du +3 more
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