Factors affecting the charging characteristics of solid insulators in vacuum — influence of voltage shape and pressure —

Author

Yamamoto, Osamu ; Takeda, Daisuke ; Akiyama, Hironori ; Ohsawa, Yasuharu ; Morii, Hiroshi

Author_Institution

Dept. of Electr. Eng., Kyoto Univ., Kyoto

Volume

1

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

70

Lastpage

73

Abstract

This paper deals with factors affecting the charging characteristics of insulators exposed to high voltages in vacuum. We examined the influence of voltage shape on charging. A ramped dc and impulse voltages were tested in a low pressure and found that the amount of charge was larger for the impulse voltage than that for dc voltage. We also examined the influence of pressure that varies from 10^-5 Pa to 1 Pa and found that an insulator acquired more charge in a high pressure range than that acquired in a low pressure range.

Keywords

electric charge; insulators; vacuum circuit breakers; charging characteristics; impulse voltages; ramped dc voltage; solid insulators; vacuum circuit breaker; voltage pressure; voltage shape; Anodes; Dielectrics and electrical insulation; Electrodes; Probes; Rough surfaces; Shape; Solids; Surface charging; Surface roughness; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 2008. ISDEIV 2008. 23rd International Symposium on

Conference_Location

Bucharest

ISSN

1093-2941

Print_ISBN

978-973-755-382-9

Electronic_ISBN

1093-2941

Type

conf

DOI

10.1109/DEIV.2008.4676720

Filename

4676720