Results 11 to 20 of about 4,473,292 (172)
Effects of surface roughness on DC and AC surface flashover performances of epoxy composites in SF6/N2 mixtures [PDF]
AIP AdvancesSurface flashover of the epoxy insulator is one of the urgent insulation issues in SF6/N2 filled gas-insulated equipment, causing irreversible insulation failure and harming the secure operation of power systems. However, the effects of surface roughness,
Lei Zhang +9 more
doaj +3 more sources
Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle [PDF]
, 2002 Surface pollution of outdoor high-voltage insulators is an important cause of flashover. We have undertaken an experimental study of electrical breakdown at the edges of a sessile water droplet on a planar, polymeric, insulating surface when subject to ...
Gouda, H.A. +3 more
core +3 more sources
The synergistic effect of micro structure/nanofiller/superhydrophobicity on the surface flashover
High Voltage, 2022 The surface flashover is affected by many factors, such as surface roughness, nanofillers and chemical functional groups. In this research study, polyamide mesh was utilised as a scaffold to systematically study the synergistic effect of micro structure ...
Qing Xie +6 more
doaj +1 more source
SURFACE FLASHOVER UNDER VARIOUS SURFACE CONDITIONS [PDF]
, 2022 Electrical insulators are critical components used in every high voltage application whether it is operated continuously or in a pulsed mode. Bulk dielectric breakdown and surface flashover must be prevented in all use cases, especially those that occur ...
Hannum, Bradley A
core +1 more source
Mechanisms for surface potential decay on fluorinated epoxy in high voltage DC applications [PDF]
, 2014 Epoxy resin has been extensively used for decades as an insulation material in high voltage transmission systems. However, this insulation material does suffer from bulk and surface charging when used as insulating spacer, mainly in high voltage DC ...
Z. An +7 more
core +1 more source
Flashover characteristics of a droplet impacting the silicone rubber surface
AIP Advances, 2023 The surface discharge of silicone rubber (SIR) is one of the main reasons to accelerate the aging of its surface material in power systems. It is known that static water droplets on the SIR surface can make the flashover voltage substantially fall, while
Zong Li +5 more
doaj +1 more source
IEEE Access, 2019 Surface flashover fault is one of the most challenge issues in oil-cellulose insulation pressboard system used in power transformer. In this study, a comparative study of the AC surface flashover properties of the novel 3-element mixed oil-cellulose ...
Xin Chen +5 more
doaj +1 more source
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
doaj +1 more source
, 2020 Polypropylene (PP) with low leakage current and high mechanical strength is a promising candidate for recyclable vacuum insulation applications, but its surface flashover voltage is low. Advantageously to widely used technologies such as fluorination and
Kong, Fei +8 more
core +1 more source
High flashover strength and superhydrophobic coatings by constructing porous surface structure
High Voltage, 2023 Flashover is prone to occur in composite insulation structures such as vacuum‐solid and gas‐solid, which are universally employed in high‐voltage power equipment.
Mengtao Li +5 more
doaj +1 more source