Title :
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
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;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1067767
