DocumentCode
771803
Title
Effects of discharge area and surface conductivity on partial discharge behavior in voids under square voltages
Author
Wu, Kai ; Okamoto, Tatsuki ; Suzuoki, Yasuo
Author_Institution
State Key Lab. of Electr. Insulation & Power Equip., Xi´´an Jiaotong Univ.
Volume
14
Issue
2
fYear
2007
fDate
4/1/2007 12:00:00 AM
Firstpage
461
Lastpage
470
Abstract
The transitions of partial discharge (PD) behavior with aging in a void under ac voltages with sine wave and square wave were observed. The transition of the PD magnitude with aging under square wave showed the same tendency as that under sine wave. Moreover, the experimental results also showed some distinctive characteristics of PDs under square voltage (e.g. more than two pulses after the voltage rise time and their transition with aging). These phenomena were explained in terms of the effect of discharge area and the change in surface condition due to PD degradation
Keywords
partial discharges; surface conductivity; PD degradation; discharge area; partial discharge; sine wave-square wave; surface conductivity; Aging; Bridge circuits; Conductivity; Differential amplifiers; Frequency; Partial discharges; Pulse amplifiers; Pulse measurements; Surface discharges; Voltage;
fLanguage
English
Journal_Title
Dielectrics and Electrical Insulation, IEEE Transactions on
Publisher
ieee
ISSN
1070-9878
Type
jour
DOI
10.1109/TDEI.2007.344627
Filename
4150615
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