Simulation of accumulated surface charge effect on DC cone-type spacers

Gui Xin Zhang*, Bei Wang, Qiang Wang, Jin Zhong Li, Jian Bin Fan, Hao Tang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

In order to study accumulated surface charge effect on DC cone-type spacers, a simulation model of cone-type spacers which are used in GIL lines was built to yield the electric field data with the software Maxwell 2D. Finite element method was used for analysis. The simulation results show the change of electrostatic field when different polarities and amounts of surface charges occur on different locations of cone-type spacers. Different polarities of surface charges can lead to different influences, different locations which the surface charges occur on also lead to different influences. When the amount of accumulated surface charges reaches a certain lever, it may lead to the degradation of insulation performance. The amount of surface charges on cone-type spacers is reduced by degrees in the simulation until the electric field after the surface charge generated is almost as the original electric field. The amount of surface charge at this time can be accepted as the allowable value.

Original languageEnglish
Pages (from-to)335-339
Number of pages5
JournalGaodianya Jishu/High Voltage Engineering
Volume36
Issue number2
Publication statusPublished - Feb 2010
Externally publishedYes

Keywords

  • Accumulation
  • Cone-type spacers
  • FEM
  • GIS
  • Simulation
  • Surface charge

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