Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions
One important objective of this article is to present a novel approach to study the current density and ground surface potential around the area surrounding earthed and isolated systems in the event of a line-to-earth fault. The present study is done in the case of uniform and two layers of soil. Th...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10239397/ |
| _version_ | 1797685360707239936 |
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| author | Osama E. Gouda Adel Z. El Dein Elsayed Tag-Eldin Matti Lehtonen Mohamed M. F. Darwish |
| author_facet | Osama E. Gouda Adel Z. El Dein Elsayed Tag-Eldin Matti Lehtonen Mohamed M. F. Darwish |
| author_sort | Osama E. Gouda |
| collection | DOAJ |
| description | One important objective of this article is to present a novel approach to study the current density and ground surface potential around the area surrounding earthed and isolated systems in the event of a line-to-earth fault. The present study is done in the case of uniform and two layers of soil. The contact and arc resistances of the line-to-ground faulty conductors are considered. A grounded system is usually implemented with rods and/or grounding grids, the impact of both on step and touch potentials and current density are investigated, discussed, and adapted. The methods of the calculations are based on the electrical concepts, the charge simulation method, and the image method for the grounding system. The results obtained are in agreement with that reported by others, with the benefits of the proposed algorithm for its ease of application, simplicity, and it does not need complex computer programs or a long time in calculations. 3-D dimensions contours of the current density and the electric potential on the earth’s surface around the faulty point in case of homogeneous and two layers of soil are presented, whether the network is grounded or isolated. Comparing the results obtained with those reported by the others, differences of 2.2% in the Ground Potential Rise, 2.46% in the current density, and 0.5% in the fault current passes into the isolated system are recorded. These values in the differences are within the acceptable limits. |
| first_indexed | 2024-03-12T00:44:01Z |
| format | Article |
| id | doaj.art-49919d4b17ee46a59df7309182ed20e5 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-12T00:44:01Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-49919d4b17ee46a59df7309182ed20e52023-09-14T23:00:49ZengIEEEIEEE Access2169-35362023-01-0111983629837510.1109/ACCESS.2023.331205810239397Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault ConditionsOsama E. Gouda0https://orcid.org/0000-0002-7092-8387Adel Z. El Dein1https://orcid.org/0000-0001-9614-1753Elsayed Tag-Eldin2https://orcid.org/0000-0003-3151-9967Matti Lehtonen3https://orcid.org/0000-0002-9979-7333Mohamed M. F. Darwish4https://orcid.org/0000-0001-9782-8813Department of Electrical Power Engineering, Faculty of Engineering, Cairo University, Giza, EgyptDepartment of Electrical Power Engineering, Faculty of Energy Engineering, Aswan University, Aswan, EgyptFaculty of Engineering and Technology, Future University in Egypt, New Cairo, Cairo, EgyptDepartment of Electrical Engineering and Automation, Aalto University, Espoo, FinlandDepartment of Electrical Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, EgyptOne important objective of this article is to present a novel approach to study the current density and ground surface potential around the area surrounding earthed and isolated systems in the event of a line-to-earth fault. The present study is done in the case of uniform and two layers of soil. The contact and arc resistances of the line-to-ground faulty conductors are considered. A grounded system is usually implemented with rods and/or grounding grids, the impact of both on step and touch potentials and current density are investigated, discussed, and adapted. The methods of the calculations are based on the electrical concepts, the charge simulation method, and the image method for the grounding system. The results obtained are in agreement with that reported by others, with the benefits of the proposed algorithm for its ease of application, simplicity, and it does not need complex computer programs or a long time in calculations. 3-D dimensions contours of the current density and the electric potential on the earth’s surface around the faulty point in case of homogeneous and two layers of soil are presented, whether the network is grounded or isolated. Comparing the results obtained with those reported by the others, differences of 2.2% in the Ground Potential Rise, 2.46% in the current density, and 0.5% in the fault current passes into the isolated system are recorded. These values in the differences are within the acceptable limits.https://ieeexplore.ieee.org/document/10239397/Current and voltage distributionsisolated and grounded systemsearth fault conditionscurrent densitystep and touch potentials |
| spellingShingle | Osama E. Gouda Adel Z. El Dein Elsayed Tag-Eldin Matti Lehtonen Mohamed M. F. Darwish Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions IEEE Access Current and voltage distributions isolated and grounded systems earth fault conditions current density step and touch potentials |
| title | Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions |
| title_full | Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions |
| title_fullStr | Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions |
| title_full_unstemmed | Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions |
| title_short | Proposed Approach to Investigate the Current and Voltage Distributions of Isolated and Grounded Systems During Earth Fault Conditions |
| title_sort | proposed approach to investigate the current and voltage distributions of isolated and grounded systems during earth fault conditions |
| topic | Current and voltage distributions isolated and grounded systems earth fault conditions current density step and touch potentials |
| url | https://ieeexplore.ieee.org/document/10239397/ |
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