A calculational method of transient electric field excited by partial discharge in gas insulated substation using dyadic Green function

Author

Gaofeng, Xu ; Caixin, Sun ; Ju, Tang ; Zhide, Tang ; Wei, Zhu

Author_Institution

key Lab. of High Voltage Eng. & Electr. New Technol., Chongqing Univ., China

Volume

3

fYear

2002

fDate

2002

Firstpage

1438

Abstract

In this paper, Gaussian current pulse is used to simulate the PD current pulse in gas insulated substation (GIS). The expressions of transient electric field excited by PD in GIS are deduced by using dyadic Green function theory, which is important to study the principle of detecting PD in GIS using ultra-high frequency (UHF) method. The calculation results of electric field show that the TEM mode and high order modes excited by PD make different contributions to the electric field. So the contributions of TEM mode and all the high order modes in the detection frequency scope should be taken into consideration when calculating the electric field excited by PD in GIS.

Keywords

Green´s function methods; UHF measurement; electric fields; gas insulated substations; partial discharge measurement; Gaussian current pulse; PD current pulse; PD detection; TEM mode; UHF method; dyadic Green function theory; gas insulated substation; high order modes; partial discharge; transient electric field; ultra high frequency method; Coaxial components; Computational Intelligence Society; Dielectrics and electrical insulation; Electromagnetic waveguides; Frequency; Gas insulation; Green function; Partial discharges; Substations; Sun;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on

Print_ISBN

0-7803-7459-2

Type

conf

DOI

10.1109/ICPST.2002.1067767

Filename

1067767