Investigation of PD pulse propagation characteristics in GIS

Author

Mizuno, K. ; Ogawa, A. ; Nojima, K. ; Murase, H. ; Koyama, H. ; Wakabayashi, S. ; Sakakibara, T.

Author_Institution

Chuba Electr. Power Co. Inc., Nagoya, Japan

fYear

1996

fDate

15-20 Sep 1996

Firstpage

204

Lastpage

212

Abstract

Concentrating on the TEM mode, damping characteristics of partial discharge (PD) pulses propagating through each GIS (gas insulated substation) component were investigated, as a result, it was discovered that frequency components above 500 MHz were damped by spacers, T-shape branches, and L-bends. Quantitative studies were undertaken on the frequency dependency of this damping characteristics. Then the equivalent circuits for analyzing the propagation characteristic of PD pulses were proposed. Furthermore, the validity of concentrating on the TEM mode was denoted by tests at a substation in service

Keywords

charge measurement; damping; equivalent circuits; gas insulated substations; partial discharges; power system measurement; GIS; L-bends; PD pulse propagation characteristics; T-shape branches; TEM mode; equivalent circuits; frequency components; frequency dependency; gas insulated substation; partial discharge pulses propagation; spacers; Circuit analysis; Circuit testing; Damping; Equivalent circuits; Frequency; Gas insulation; Geographic Information Systems; Partial discharges; Pulse circuits; Substations;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE

Conference_Location

Los Angeles, CA

Print_ISBN

0-7803-3522-8

Type

conf

DOI

10.1109/TDC.1996.545936

Filename

545936