Testing continuity of grounding grid using the AC current injection method

Yan Ma, George G. Karady, Sadik Kucuksari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

We propose here a cost-effective, realistic method for testing the continuity of the grounding grid and for identifying its weak points or discontinuities. The proposed method involves injecting an ac current of ∼200 A frequency not 60 Hz or 60 Hz harmonic into a grounding grid. The purpose of the frequency setting is to be able to distinguish the magnetic field produced by the injected current when the substation is energized. The magnetic field generated by the current flowing in the buried grid conductors is then measured above the ground. A strong magnetic field indicates that the grounding grid is in good condition; a weak magnetic field indicates that some damage may exist. Two field tests were conducted to demonstrate that the proposed method works effectively in determining the continuity of the grounding grid.

Original languageEnglish (US)
Title of host publicationIEEE PES General Meeting, PES 2010
DOIs
StatePublished - 2010
EventIEEE PES General Meeting, PES 2010 - Minneapolis, MN, United States
Duration: Jul 25 2010Jul 29 2010

Other

OtherIEEE PES General Meeting, PES 2010
CountryUnited States
CityMinneapolis, MN
Period7/25/107/29/10

Fingerprint

Electric grounding
Magnetic fields
Testing
Antenna grounds
Costs

Keywords

  • Continuity
  • Grounding
  • Grounding grids
  • Substation grounding

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

Cite this

Ma, Y., Karady, G. G., & Kucuksari, S. (2010). Testing continuity of grounding grid using the AC current injection method. In IEEE PES General Meeting, PES 2010 [5590219] https://doi.org/10.1109/PES.2010.5590219

Testing continuity of grounding grid using the AC current injection method. / Ma, Yan; Karady, George G.; Kucuksari, Sadik.

IEEE PES General Meeting, PES 2010. 2010. 5590219.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ma, Y, Karady, GG & Kucuksari, S 2010, Testing continuity of grounding grid using the AC current injection method. in IEEE PES General Meeting, PES 2010., 5590219, IEEE PES General Meeting, PES 2010, Minneapolis, MN, United States, 7/25/10. https://doi.org/10.1109/PES.2010.5590219
Ma Y, Karady GG, Kucuksari S. Testing continuity of grounding grid using the AC current injection method. In IEEE PES General Meeting, PES 2010. 2010. 5590219 https://doi.org/10.1109/PES.2010.5590219
Ma, Yan ; Karady, George G. ; Kucuksari, Sadik. / Testing continuity of grounding grid using the AC current injection method. IEEE PES General Meeting, PES 2010. 2010.
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