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With the development of ultra high voltage AC and DC power system, fault current of power plants, substations and convertor station are great than before. Larger grounding grids are needed to meet the safety regulation. Grounding grids usually located in horizon multilayer or vertical multilayer soil structure which parameters such as thickness, resistivity of each layer can be estimated. This paper...
One of the main concerns of utilities, nowadays, is grounding the distribution systems. Distribution systems are usually three phase systems with a returning current neutral wire. Grounding the neutral wire will affect the power quality and characteristics of distribution systems during unbalanced conditions, specially phase to ground faults. In this paper several case studies have been done to investigate...
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