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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 A Basic Study on the Construction of Grounding of Solar Photovoltaic Power Generation Installations Built on the Water
Authors Bok-Hee Lee ; Hoe-Gu Kim ; Yoo-Ha Kim ; Yang-Woo Yoo
DOI http://dx.doi.org/10.5207/JIEIE.2018.32.5.059
Page pp.59-66
ISSN 1225-1135
Keywords Photovoltaic Power Generation System ; Grounding ; Ground Resistance ; Water Resistivity ; Surface Potential Rise
Abstract Recently, construction of photovoltaic(PV) power generation installations built on the water is increased. Grounding is an important factor in safety of electrical installations on the water. In this paper, we described the results of a model experiment to propose a technique examining the water resistivity and potential rise on the surface of water. As a result, a method of measuring the water resistivity using concentric hemispherical electrode system is a high accuracy. The measured data of the potential rise on the surface of water around hemispherical electrodes were in good agreement with the theoretically calculated results. Also the potential rise on the surface of water drastically decreased as the submerged depth of grounding electrode increased.