Effect of earth grid conductor spacing on the safety criteria of substation earthing
Site dependent parameters such as soil resistivity, maximum grid current, fault duration, shock duration, surface layer material resistivity, and grid geometry have substantial impact on the design and performance of an earth grid. The grid geometry, i.e. the area occupied by the grid system, conduc...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Institute of Electrical and Electronics Engineers Inc.
2023
|
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1833410512313909248 |
|---|---|
| author | Buba S.D. Wan Ahmad W.F. Ab Kadir M.Z.A. Gomes C. Jasni J. Osman M. |
| author2 | 55121228700 |
| author_facet | 55121228700 Buba S.D. Wan Ahmad W.F. Ab Kadir M.Z.A. Gomes C. Jasni J. Osman M. |
| author_sort | Buba S.D. |
| building | UNITEN Library |
| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Site dependent parameters such as soil resistivity, maximum grid current, fault duration, shock duration, surface layer material resistivity, and grid geometry have substantial impact on the design and performance of an earth grid. The grid geometry, i.e. the area occupied by the grid system, conductor spacing and the depth of burial of earth grid specifically have much impact on the mesh, step, touch voltage and earth potential rise, while parameters such as the conductor diameter and the thickness of the surfacing material have less impact on the safety criteria. In this paper, a distribution substation earth grid was designed using the CDEGS software by varying the spacing between grid conductors (compression ratio) from 1 to 0.5 in steps of 0.1. The safety criteria were studied under three scenarios, without surface layer material, with surface layer material of resistivity 3000?-m, and surface layer material of resistivity 5000?-m. Results indicated that the grid resistance and earth potential rise were lower for a compression ratio 0.9, while the step and touch voltages were found to be similar for each case of surface layer material. © 2014 IEEE. |
| format | Conference Paper |
| id | my.uniten.dspace-21910 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2023 |
| publisher | Institute of Electrical and Electronics Engineers Inc. |
| record_format | dspace |
| spelling | my.uniten.dspace-219102023-05-16T10:46:00Z Effect of earth grid conductor spacing on the safety criteria of substation earthing Buba S.D. Wan Ahmad W.F. Ab Kadir M.Z.A. Gomes C. Jasni J. Osman M. 55121228700 57215968575 25947297000 57201335285 25632671500 7201930315 Site dependent parameters such as soil resistivity, maximum grid current, fault duration, shock duration, surface layer material resistivity, and grid geometry have substantial impact on the design and performance of an earth grid. The grid geometry, i.e. the area occupied by the grid system, conductor spacing and the depth of burial of earth grid specifically have much impact on the mesh, step, touch voltage and earth potential rise, while parameters such as the conductor diameter and the thickness of the surfacing material have less impact on the safety criteria. In this paper, a distribution substation earth grid was designed using the CDEGS software by varying the spacing between grid conductors (compression ratio) from 1 to 0.5 in steps of 0.1. The safety criteria were studied under three scenarios, without surface layer material, with surface layer material of resistivity 3000?-m, and surface layer material of resistivity 5000?-m. Results indicated that the grid resistance and earth potential rise were lower for a compression ratio 0.9, while the step and touch voltages were found to be similar for each case of surface layer material. © 2014 IEEE. Final 2023-05-16T02:46:00Z 2023-05-16T02:46:00Z 2014 Conference Paper 10.1109/PECON.2014.7062428 2-s2.0-84946690111 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946690111&doi=10.1109%2fPECON.2014.7062428&partnerID=40&md5=1b7521acadfbc3710276cef48cba3fe8 https://irepository.uniten.edu.my/handle/123456789/21910 7062428 134 139 All Open Access, Green Institute of Electrical and Electronics Engineers Inc. Scopus |
| spellingShingle | Buba S.D. Wan Ahmad W.F. Ab Kadir M.Z.A. Gomes C. Jasni J. Osman M. Effect of earth grid conductor spacing on the safety criteria of substation earthing |
| title | Effect of earth grid conductor spacing on the safety criteria of substation earthing |
| title_full | Effect of earth grid conductor spacing on the safety criteria of substation earthing |
| title_fullStr | Effect of earth grid conductor spacing on the safety criteria of substation earthing |
| title_full_unstemmed | Effect of earth grid conductor spacing on the safety criteria of substation earthing |
| title_short | Effect of earth grid conductor spacing on the safety criteria of substation earthing |
| title_sort | effect of earth grid conductor spacing on the safety criteria of substation earthing |
| url_provider | http://dspace.uniten.edu.my/ |