Contact discharge test cell: a means of generating signals for sensitivity verification of UHFPD detection in GIS

M.D. Judd, P. Coventry, J. Blackett

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

A novel test cell is described, which is capable of providing a consistent level of partial discharge (PD) for generating UHF signals in GIS. The cell can be used to determine the sensitivity of UHF PD detection equipment. SF6 gas is not required and the device can operate from a low-current DC supply at less than 1 kV. Its use is demonstrated in the testing of a new method for coupling UHF signals using a sensor designed to fit the test injection loop terminals of current transformers. The experiments demonstrate that contact discharges in the cell generate suitably broadband signals and show that the coupler is capable of achieving a PD detection sensitivity of < 5 pC.
Original languageEnglish
Pages407-410
Number of pages4
DOIs
Publication statusPublished - Apr 2002
Event2002 IEEE International Symposium on Electrical Insulation - Boston, United States
Duration: 7 Apr 200210 Apr 2002

Conference

Conference2002 IEEE International Symposium on Electrical Insulation
CountryUnited States
CityBoston
Period7/04/0210/04/02

Keywords

  • contact discharge
  • test cell
  • generating signals
  • sensitivity verification
  • uhfpd detection
  • gis
  • circuit breakers
  • signal generators
  • pulse measurements
  • partial discharges
  • mesh generation
  • geographic Information Systems
  • fault location
  • current transformers
  • coupling circuits
  • circuit testing

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  • Cite this

    Judd, M. D., Coventry, P., & Blackett, J. (2002). Contact discharge test cell: a means of generating signals for sensitivity verification of UHFPD detection in GIS. 407-410. Paper presented at 2002 IEEE International Symposium on Electrical Insulation , Boston, United States. https://doi.org/10.1109/ELINSL.2002.995962