Improvement of safety of autonomous electrical installations by implementing a method for calculating the electrolytic grounding electrodes parameters

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.144925

Keywords:

grounding process, electrolytic grounding conductors, percolation and fractal properties, normalized impedance

Abstract

We have solved the task of safety improvement in the grounding process of autonomous mobile electrical installations. Existing procedures for the calculation of normalized resistance of grounding electrodes in electric installations have been examined and studied. Their main drawbacks have been revealed: the difficulty and complexity of calculations; the probabilistic and approximate character; the use of source data taken to calculate the electrophysical parameters of stationary grounding electrodes; the calculations do not account for the structural-phase structure of soil and the volume of electrolyte. Based on the application of percolation theory and the apparatus of fractal-cluster geometry, we have modeled the process of electrolytic grounding in heterogeneous soils of different porous structure, which possess the percolation and fractal properties. A physical model of the process of electrolytic grounding has been developed, which takes into consideration the soil structure properties when changing the fractal dimensionality of a cluster over a certain range that forms the electrolytic grounding conductor with the normalized resistance. It has been shown that the model of conductivity of the electrolytic grounding electrode is defined by the soil electrical conductivity in a percolation channel of the porous structure of soil and can be considered as a function of the volumetric concentration of the electrolyte and the size of the volumetric structure of the electrolytic percolation cluster. We have derived analytical expressions to relate the normalized resistance of electrolytic grounding conductors and the specific resistivity of soil to the fractal dimensionality, volume of the electrolyte, the number of pores to the electrolyte, density of a geometrical volumetric body. We have improved a method for calculating the electrophysical parameters of electrolytic grounding conductors, based on accounting for the main linear size of the cluster of an electrolytic volumetric body, which coincides with the electrolyte penetration depth for various soil structures. We have established conditions for conductivity of the electrolytic grounding conductor in order to ensure safety during operation of the autonomous mobile electrical installation

Author Biographies

Pavlo Budanov, Ukrainian Engineering Pedagogics Academy Universitetskaya str., 16, Kharkiv, Ukraine, 61003

PhD, Associate Professor

Department of Physics, Electrical Engineering and Power Engineering

Kostiantyn Brovko, Kharkiv Petro Vasylenko National Technical University of Agriculture Artyoma str., 44, Kharkiv, Ukraine, 61002

PhD

Department of integrated electric technologies and processes

Artem Cherniuk, Ukrainian Engineering Pedagogics Academy Universitetskaya str., 16, Kharkiv, Ukraine, 61003

PhD, Associate Professor

Department of Physics, Electrical Engineering and Power Engineering

Iryna Pantielieieva, Ukrainian Engineering Pedagogics Academy Universitetskaya str., 16, Kharkiv, Ukraine, 61003

PhD, Associate Professor

Department of Physics, Electrical Engineering and Power Engineering

Yuliya Oliynyk, Ukrainian Engineering Pedagogics Academy Universitetskaya str., 16, Kharkiv, Ukraine, 61003

PhD

Department of Physics, Electrical Engineering and Power Engineering

Nataliia Shmatko, National Technical University «Kharkiv Polytechnic Institute» Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Production Organization and Personnel Management

Pavlo Vasyuchenko, LLC "Energetic" Kharkivskykh Dyviziy str., 14, Kharkiv, Ukraine, 61091

PhD, Associate Professor

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Published

2018-10-19

How to Cite

Budanov, P., Brovko, K., Cherniuk, A., Pantielieieva, I., Oliynyk, Y., Shmatko, N., & Vasyuchenko, P. (2018). Improvement of safety of autonomous electrical installations by implementing a method for calculating the electrolytic grounding electrodes parameters. Eastern-European Journal of Enterprise Technologies, 5(5 (95), 20–28. https://doi.org/10.15587/1729-4061.2018.144925

Issue

Vol. 5 No. 5 (95) (2018): Applied physics

Section

Applied physics

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Copyright (c) 2018 Pavlo Budanov, Kostiantyn Brovko, Artem Cherniuk, Iryna Pantielieieva, Yuliya Oliynyk, Nataliia Shmatko, Pavlo Vasyuchenko

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