Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin
Lightning overvoltage is the major cause of transmission-line outage in Malaysia. The phenomenon is a dominant factor considered in designing substations and transmission-line insulation, so its investigation is important. This study is thus essential to ensuring consistent performance of transmissi...
| _version_ | 1848772451623763968 |
|---|---|
| author | Nur Zawani, Saharuddin |
| author_facet | Nur Zawani, Saharuddin |
| author_sort | Nur Zawani, Saharuddin |
| building | UM Research Repository |
| collection | Online Access |
| description | Lightning overvoltage is the major cause of transmission-line outage in Malaysia. The phenomenon is a dominant factor considered in designing substations and transmission-line insulation, so its investigation is important. This study is thus essential to ensuring consistent performance of transmission lines and electric power system. The work models a 132kV overhead transmission line by using ATP-EMTP software, for back-flashover pattern recognition. It examines back-flashover studies, as they are essential to evaluation of lightning performance (in reality, most of the lightning strikes terminate at shield-wire rather than the phase-conductor). The full transmission-line model here is divided into several parts: wires (shield wires and phase conductors), towers, cross-arms, insulator strings, tower-surge impedance and towerfooting resistance. The developed model is then simulated with four magnitudes of lightning-strike current, to investigate the back-flashover voltage pattern across the line insulation of the transmission tower. The dissertation discusses effects of tower-footing resistance towards the back-flashover voltage observed. It presents the work’s findings, and recommends possible future works. |
| first_indexed | 2025-11-14T13:26:43Z |
| format | Thesis |
| id | um-3590 |
| institution | University Malaya |
| institution_category | Local University |
| last_indexed | 2025-11-14T13:26:43Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | um-35902013-12-24T12:05:44Z Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin Nur Zawani, Saharuddin TA Engineering (General). Civil engineering (General) TK Electrical engineering. Electronics Nuclear engineering Lightning overvoltage is the major cause of transmission-line outage in Malaysia. The phenomenon is a dominant factor considered in designing substations and transmission-line insulation, so its investigation is important. This study is thus essential to ensuring consistent performance of transmission lines and electric power system. The work models a 132kV overhead transmission line by using ATP-EMTP software, for back-flashover pattern recognition. It examines back-flashover studies, as they are essential to evaluation of lightning performance (in reality, most of the lightning strikes terminate at shield-wire rather than the phase-conductor). The full transmission-line model here is divided into several parts: wires (shield wires and phase conductors), towers, cross-arms, insulator strings, tower-surge impedance and towerfooting resistance. The developed model is then simulated with four magnitudes of lightning-strike current, to investigate the back-flashover voltage pattern across the line insulation of the transmission tower. The dissertation discusses effects of tower-footing resistance towards the back-flashover voltage observed. It presents the work’s findings, and recommends possible future works. 2011-03 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/3590/1/Front_Cover.pdf application/pdf http://studentsrepo.um.edu.my/3590/3/abstract.pdf application/pdf http://studentsrepo.um.edu.my/3590/2/acknowledgement.pdf application/pdf http://studentsrepo.um.edu.my/3590/4/table_of_content.pdf application/pdf http://studentsrepo.um.edu.my/3590/5/chapter1%2D_chapter6.pdf application/pdf http://studentsrepo.um.edu.my/3590/6/REFERENCES.pdf application/zip http://studentsrepo.um.edu.my/3590/7/APPENDIX_A%2D_D.zip http://pendeta.um.edu.my/client/default/search/results?qu=Modelling+of+132kV+overhead+transmission+lines+by+using+ATP%2FEMTP&te= Nur Zawani, Saharuddin (2011) Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin. Masters thesis, University of Malaya. http://studentsrepo.um.edu.my/3590/ |
| spellingShingle | TA Engineering (General). Civil engineering (General) TK Electrical engineering. Electronics Nuclear engineering Nur Zawani, Saharuddin Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin |
| title | Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin |
| title_full | Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin |
| title_fullStr | Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin |
| title_full_unstemmed | Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin |
| title_short | Modelling of 132kV overhead transmission lines by using ATP/EMTP for back-flashover pattern recognition / Nur Zawani Saharuddin |
| title_sort | modelling of 132kv overhead transmission lines by using atp/emtp for back-flashover pattern recognition / nur zawani saharuddin |
| topic | TA Engineering (General). Civil engineering (General) TK Electrical engineering. Electronics Nuclear engineering |
| url | http://pendeta.um.edu.my/client/default/search/results?qu=Modelling+of+132kV+overhead+transmission+lines+by+using+ATP%2FEMTP&te= http://pendeta.um.edu.my/client/default/search/results?qu=Modelling+of+132kV+overhead+transmission+lines+by+using+ATP%2FEMTP&te= http://studentsrepo.um.edu.my/3590/1/Front_Cover.pdf http://studentsrepo.um.edu.my/3590/3/abstract.pdf http://studentsrepo.um.edu.my/3590/2/acknowledgement.pdf http://studentsrepo.um.edu.my/3590/4/table_of_content.pdf http://studentsrepo.um.edu.my/3590/5/chapter1%2D_chapter6.pdf http://studentsrepo.um.edu.my/3590/6/REFERENCES.pdf http://studentsrepo.um.edu.my/3590/7/APPENDIX_A%2D_D.zip |