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Application of an analysis technique to characterise impulse response of grounding systems

  • H. Hamzehbahmani
  • , A. Haddad
  • , H. Griffiths
  • , N. Harid
  • , D. Guo
  • Cardiff University
  • National Grid

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Transient response plays a key role in the evaluation of the performance of grounding systems and for the protection of electrical installations under lightning strikes. The frequency spectrum of the lightning impulse contains harmonics components up to the megahertz range. The measured transient response of grounding systems under test may be distorted by spurious high frequency interference in the acquired signals, which presents challenges for the accurate analysis of high frequency performance of such systems. In this paper, the high frequency performance of a rod electrode is investigated based on measurements of its transient response under impulse energisation. A practical method is implemented to eliminate the high frequency noise in the measured voltage and current shapes, which allows a frequency domain analysis based Fast Fourier Transforms.

Original languageBritish English
Title of host publication2016 33rd International Conference on Lightning Protection, ICLP 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509058433
DOIs
StatePublished - 19 Dec 2016
Event33rd International Conference on Lightning Protection, ICLP 2016 - Estoril, Lisboa, Portugal
Duration: 25 Sep 201630 Sep 2016

Publication series

Name2016 33rd International Conference on Lightning Protection, ICLP 2016

Conference

Conference33rd International Conference on Lightning Protection, ICLP 2016
Country/TerritoryPortugal
CityEstoril, Lisboa
Period25/09/1630/09/16

Keywords

  • FFT analysis
  • Grounding impedance
  • Grounding system
  • Harmonic noise
  • Impulse response
  • Lightning strike

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