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Experimental study on the partial discharge characteristics of the disk-spacers in different parts of GIS in service

  • Yu Chen
  • , Yonghong Cheng
  • , Xiaojun Xie
  • , Tong Liu
  • , Xuesheng Hu
  • , Zhelei Zhu
  • , Wei Cui
  • , Sushan Jiao
  • Xi'an Jiaotong University
  • Tianshui Power Supply Branch

Research output: Contribution to conferencePaperpeer-review

Abstract

It is very important that a GIS on-line detecting system is built availably, and it is also the key to acquiring successful detection. And it is of great significance to find out which parts are liable to faults as well as their real discharge characteristics. By using an ultra-wideband partial discharge detecting system, the discharge signal from disk-type spacer in key part of 110kV GIS is acquired and studied. These key parts are the part nearby PT, the part nearby CT, the part nearby CB, the part nearby bus, the part nearby the LA. According to the different machine structure and electromagnetic field non-uniform distribution, these disk-spacers have different partial discharge characteristics. It is found that spacers in different parts of GIS have their own partial discharge characteristics, and their discharge frequencies concentrate below 300MHz, which provide numerical reference for the on-line monitoring of GIS.

Original languageEnglish
Pages691-693
Number of pages3
StatePublished - 2005
Event2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu, Japan
Duration: 5 Jun 20059 Jun 2005

Conference

Conference2005 International Symposium on Electrical Insulating Materials, ISEIM 2005
Country/TerritoryJapan
CityKitakyushu
Period5/06/059/06/05

Keywords

  • Disk-type spacer in different parts
  • GIS
  • Partial discharge

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