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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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