Journal ArticleDOI
Corona Discharge from Water Droplet on Electrically Stressed Polymer Surface
TLDR
In this paper, the results of experiments and simulations made to examine the corona discharges from water droplets on a polymer surface exposed to electrical stress were described. But the authors did not consider the effect of the contact angle, volume, conductivity, and number of the droplets.Abstract:
This paper describes the results of experiments and simulations made to examine the corona discharges from water droplets on a polymer surface exposed to electrical stress. In this study, water droplets with different conductivities and volumes were placed on the surface of plate-shaped high temperature vulcanized silicone rubber (HTV-SR) energized with ac voltage, and the corona discharge phenomena were observed by a high-speed camera with an image intensifier. The electric-field distributions were calculated by the finite element method (FEM). It is demonstrated that the electric field is intensified at the triple junction of the water droplet, air and the insulating material due to the difference in their permittivities, which can ionize the surrounding air and trigger a corona discharge. It can also be confirmed that the contact angle, volume, conductivity and number of water droplets are shown to have a marked effect on the mode of the corona discharge development.read more
Citations
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Journal ArticleDOI
A practical interface for microfluidics and nanoelectrospray mass spectrometry.
TL;DR: A new method for fabricating nanospray ionization tips for MS, formed from glass substrates and the inert polymer, parylene‐C, using a single photolithography step, with the advantage of rapid, batch fabrication of identical devices.
Journal ArticleDOI
Vibration of a water droplet on a polymeric insulating material subjected to AC voltage stress
TL;DR: In this article, the behavior of a water droplet on a silicone rubber plate was observed with a high-speed camera under ac voltage application, and it was confirmed that water droplets vibrated and that a remarkable deformation from the original droplet form occurred at the mechanical resonance frequency.
Journal ArticleDOI
Dynamic behavior of water droplets and flashover characteristics on a superhydrophobic silicone rubber surface
TL;DR: In this article, a superhydrophobic surface is used to increase the flashover voltage when water droplets are present on a silicone rubber surface, and the dynamic behavior of a water droplet and the associated flashover characteristics are studied on common and super hydrophobic silicone rubber surfaces under a high DC voltage.
Journal ArticleDOI
A basic study on the effect of voltage stress on a water droplet on a silicone rubber surface
TL;DR: In this paper, the behavior of water droplets of different volumes and their size distribution on silicone rubber was analyzed and the effects of the Maxwell stress and the Coulomb's force were compared.
Proceedings ArticleDOI
Distribution of Leakage Current on Polluted Polymer Insulator Surface
TL;DR: In this article, a plate-shaped silicone rubber specimen or a real polymer insulator energized with ac voltage was exposed to a polluted liquid spray after an artificially hydrophobic removing, and its surface state was observed by a high-speed video camera.
References
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Proceedings ArticleDOI
Breakdown between water drops on wet polymer surfaces
A. Krivda,D. Birtwhistle +1 more
TL;DR: In this article, a high speed video camera was used to examine the nature of discharge phenomena between water drops on polymer surfaces and found that the shape of water drops change to shape more likely to intensify the electric field around them and initiate discharges at the solid/liquid/gas interface.
Proceedings ArticleDOI
Energy quantification of corona discharges on polymer insulators
TL;DR: In this paper, a correlation is drawn between the image obtained with a corona detection camera at the ground level and the energy associated, as measured by traditional partial discharge (PD) detection methods.