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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Ground Resistance Measurement Technology Utilizing the Variation Rate
Authors Sang-Mu Lee
Page pp.51-56
ISSN 1225-1135
Keywords ground resistance measurement ; variation rate ; true resistance ; potential position
Abstract Ground resistance measurement is an elementary technique for the evaluation of grounding system. There are main environmental factors to consider for correct measurement, but the problem is that it is practically most cases to measure ground resistance, unable to know the factors. This paper presents a methodology toward true value of resistance in the unknown circumstances, utilizing the defined term, ‘variation rate’ of potential difference curve appearing in the distance to a current probe as in the three point fall-of-potential method which comprises the characteristics of environmental factors. This methodology is a induced result from the previous demostrated studies.