Effect of resonance of a water droplet located on a hydrophobic sheet on AC flashover

Author

Higashiyama, Yoshio ; Yamada, Toshiyuki ; Sugimoto, Toshiyuki

Author_Institution

Dept. of Electr. Eng., Yamagata Univ., Yonezawa, Japan

Volume

3

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

2198

Abstract

A water droplet on the hydrophobic sheet subjected by a tangential AC electric field manifests resonant vibration at a definite frequency for a given volume of the water droplet. The effect of resonance vibration on flashover via a water droplet was investigated experimentally, using two kinds of hydrophobic materials, silicone rubber (SR) and PTFE sheet. AC flashover voltage with resonance frequency via a 30 /spl mu/l water droplet was much lower than that with a frequency of 50 Hz. This is due to the extension of the water droplet The decrease of the flashover voltage depends on the kind of materials. Since a water droplet on the PTFE sheet tends to slide more easily than that on the SR sheet, the flashover voltage via the water droplet on the PTFE sheet is much lower than that on the SR sheet.

Keywords

drops; electric fields; flashover; polymers; resonance; silicone rubber; water; AC flashover; PTFE sheet; hydrophobic sheet; resonance effect; resonance vibration effect; resonant vibration; silicone rubber; tangential AC electric field; water droplet; Corona; Electric fields; Flashover; Frequency; Resonance; Sheet materials; Strontium; Surface contamination; Surface discharges; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1043837

Filename

1043837