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Experiment #1
Peter the Great St.Petersburg Polytechnic University Institute of Energy and Transport Systems The department of Theory of Electrical Engineering
The report on laboratory work №15 «Investigation of the spatial spreading of current in a conducting medium and earth resistance»
Students: 33211/2 Kuhtin А. Kulkayev А. Shevcov R.
The lecturer: Kalimov A.
Saint Petersburg 1. Objective: It’s to study resistance current spreading in the ground from the grounding devices of various configurations by simulation on a reduced scale of the field current in a conductive medium (water), as well as reading the grounding resistance calculation methods.
2. Completing of the work: The study was conducted in a steel tank filled with water, which is immersed in a variety of metal electrodes - grounding model. The electrodes used round bars, and a ball mounted on a thin rod. Experiment #1 Prior to the main measurement, we have experimentally determined the conductivity γ water. We measured the resistance of the water column between two flat metal disks bridge method. where S - it’s cross-section of the water column:
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