Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
권호 표지
DOI QR코드

DOI QR Code

Distribution of Potential Rise as a Function of Shape of Grounding Electrodes

  • Gil, Hyoung-Jun (Electrical Safety Research Institute) ;
  • Choi, Chung-Seog (Electrical Safety Research Institute, a subsidiary of the Korea Electrical Safety Corporation) ;
  • Kim, Hyang-Kon (Electrical Safety Research Institute, a subsidiary of the Korea Electrical Safety Corporation)
  • Published : 2007.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

In order to analyze the potential rise of grounding systems installed in buildings, a hemispherical grounding simulation system was studied. Potential rise was measured and analyzed regarding the shape and distance of the grounding electrodes by using this system. The system was composed of a hemispherical water tank, AC power supply, a movable potentiometer, and test grounding electrodes. The potential rise was measured in real time by the horizontal moving probe of be potentiometer. The test grounding electrodes were fabricated through reducing the grounding electrode installed in real buildings such as the ground rod, grounding grid and so on. The potential rise was displayed in a two-dimensional profile and was analyzed regarding the shapes of the ground electrodes. The potential rise of the grounding grid combined with a ground rod was the lowest of every grounding electrode tested. The proposed results can be applicable to evaluating ground potential rise in grounding systems, and the analytical data can be used to stabilize the electrical installations and prevent electrical disasters.

Keywords

References

  1. Chung-Seog Choi, Hyoung-Jun Gil, Ki-Boong Han, Woon-Ki Han, 'The Statistical Analysis and Investigation of Field Condition about Electrical Shock Accidents and Risk Factors in Temporary Power Installations', International Journal of Safety, Vol.2, No.2, pp.22-28, 2003
  2. Korea Electrical Safety Corporation, 'A Statistical Analysis on the Electrical Accident', pp.27-63, 2005
  3. Hyoung-Jun Gil, Woon-Ki Han, Hyang-Kon Kim, Chung-Seog Choi, 'The Analysis of Field Condition for Power Receiving System and Patch and Panel Boards at Construction Sites', The Spring Conference on KIIEE, pp.335-340, 2004
  4. R. Cadecott, D.G. Kasten, 'Scale Model Studies of Station Grounding Grids', IEEE Trans. PAS., VoI.PAS-102, No.3, pp.558-566, 1975
  5. B. Thapar, K. K. Puri, 'Mesh Potentials in High-Voltage Grounding Grids', IEEE Transactions on Power Apparatus and Systems, VoI.PAS-86, No.2, pp.249-254, 1967 https://doi.org/10.1109/TPAS.1967.291843
  6. Chung-Seog Choi, Hyang-Kon Kim, Hyoung-Jun Gil, Woon-Ki Han, Ki-Yeon Lee, 'The Potential Gradient of Ground Surface according to Shapes of Mesh Grid Grounding Electrode Using Reduced Scale Model', IEEJ Trans. PE, Vol.125, No.12, pp.1170-1176, 2005 https://doi.org/10.1541/ieejpes.125.1170
  7. Hyoung-Jun Gil, Dong-Woo Kim, Chung-Seog Choi, Bok-Hee Lee, 'Comparison of Measured Data and Theoretical Results for Potential Rise of Structure Using Electrolytic Tank ModeI', Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol.20, No.5, pp.72-77, 2006 https://doi.org/10.5207/JIEIE.2006.20.5.072
  8. Ronald P. O'Riley, 'Electrical Grounding', Delmar Thomson Learning, pp.1-29, 2002
  9. Bok-Hee Lee, 'The Major Foundational Technics for Grounding Systems', Uijae, pp.113-124, 2000
  10. J. A. Guemes-Alonso et al, 'A Practical Approach for Determining the Ground Resistance of Grounding Grids', IEEE Transactions on Power Delivery, Vol.21, No.3, pp.1261-1266, 2006 https://doi.org/10.1109/TPWRD.2006.874121