A practical method for optimised earth electrode designs at transmission towers exposed to lightning
A large percentage of transmission line outages in Malaysia are due to lightning activity with backflashover being the main cause. Previous investigations have indicated that tower footing earth resistance is one of the main factors in reducing the occurrence of backflashovers. The present studies r...
| Main Authors: | , , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2011
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/55679/ http://psasir.upm.edu.my/id/eprint/55679/1/A%20practical%20method%20for%20optimised%20earth%20electrode%20designs%20at%20transmission%20towers%20exposed%20to%20lightning.pdf |
| _version_ | 1848852869202051072 |
|---|---|
| author | Abd Rahman, Nurul Azlina Ahmad Marican, Aziz Marzuki Davies, Anthony Mark Ab Kadir, Mohd Zainal Abidin Abdullah, Noradlina |
| author_facet | Abd Rahman, Nurul Azlina Ahmad Marican, Aziz Marzuki Davies, Anthony Mark Ab Kadir, Mohd Zainal Abidin Abdullah, Noradlina |
| author_sort | Abd Rahman, Nurul Azlina |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A large percentage of transmission line outages in Malaysia are due to lightning activity with backflashover being the main cause. Previous investigations have indicated that tower footing earth resistance is one of the main factors in reducing the occurrence of backflashovers. The present studies review some of the tower earthing design options. From this standard designs are proposed together with a practical method of optimising the design based on soil resistivity measurement data. The process is presented via a procedure which includes the main measurement and design steps. This allows different standard designs to be selected to suit the type of soil structure at the site of the proposed transmission tower. Where measurements indicate a high resistivity layer with underlying low resistivity soil, an electrode design relying more on driven rods is used. Conversely, a design using more horizontal electrode would be selected where the soil structure is of low resistivity above high. Trial installations using the newly designed electrode arrangements have been conducted and preliminary results indicate significant improvements in lightning performance. |
| first_indexed | 2025-11-15T10:44:56Z |
| format | Conference or Workshop Item |
| id | upm-55679 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:44:56Z |
| publishDate | 2011 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-556792017-06-07T08:34:25Z http://psasir.upm.edu.my/id/eprint/55679/ A practical method for optimised earth electrode designs at transmission towers exposed to lightning Abd Rahman, Nurul Azlina Ahmad Marican, Aziz Marzuki Davies, Anthony Mark Ab Kadir, Mohd Zainal Abidin Abdullah, Noradlina A large percentage of transmission line outages in Malaysia are due to lightning activity with backflashover being the main cause. Previous investigations have indicated that tower footing earth resistance is one of the main factors in reducing the occurrence of backflashovers. The present studies review some of the tower earthing design options. From this standard designs are proposed together with a practical method of optimising the design based on soil resistivity measurement data. The process is presented via a procedure which includes the main measurement and design steps. This allows different standard designs to be selected to suit the type of soil structure at the site of the proposed transmission tower. Where measurements indicate a high resistivity layer with underlying low resistivity soil, an electrode design relying more on driven rods is used. Conversely, a design using more horizontal electrode would be selected where the soil structure is of low resistivity above high. Trial installations using the newly designed electrode arrangements have been conducted and preliminary results indicate significant improvements in lightning performance. IEEE 2011 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55679/1/A%20practical%20method%20for%20optimised%20earth%20electrode%20designs%20at%20transmission%20towers%20exposed%20to%20lightning.pdf Abd Rahman, Nurul Azlina and Ahmad Marican, Aziz Marzuki and Davies, Anthony Mark and Ab Kadir, Mohd Zainal Abidin and Abdullah, Noradlina (2011) A practical method for optimised earth electrode designs at transmission towers exposed to lightning. In: 2011 7th Asia-Pacific International Conference on Lightning (APL2011), 1-4 Nov. 2011, Chengdu, China. (pp. 131-134). 10.1109/APL.2011.6111088 |
| spellingShingle | Abd Rahman, Nurul Azlina Ahmad Marican, Aziz Marzuki Davies, Anthony Mark Ab Kadir, Mohd Zainal Abidin Abdullah, Noradlina A practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| title | A practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| title_full | A practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| title_fullStr | A practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| title_full_unstemmed | A practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| title_short | A practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| title_sort | practical method for optimised earth electrode designs at transmission towers exposed to lightning |
| url | http://psasir.upm.edu.my/id/eprint/55679/ http://psasir.upm.edu.my/id/eprint/55679/ http://psasir.upm.edu.my/id/eprint/55679/1/A%20practical%20method%20for%20optimised%20earth%20electrode%20designs%20at%20transmission%20towers%20exposed%20to%20lightning.pdf |