Breakdown characteristics and optically visible discharge paths of surface flashover
Characteristics of surface flashover in the presence of different dielectric materials have been investigated. Lightning voltage impulses (1.2/50 μs) have been applied to a rod-plane gap of 250 mm, bridged by cylindrical solid dielectrics with circular cross-section of 10 mm. The materials used are...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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IEEE
2012
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| Online Access: | http://psasir.upm.edu.my/id/eprint/40506/1/Breakdown%20characteristics%20and%20optically%20visible%20discharge%20paths%20of%20surface%20flashover.pdf |
| _version_ | 1825949614190100480 |
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| author | Gomes, Chandima Cooray, Vernon Rahman, Mahbubur |
| author_facet | Gomes, Chandima Cooray, Vernon Rahman, Mahbubur |
| author_sort | Gomes, Chandima |
| collection | UPM |
| description | Characteristics of surface flashover in the presence of different dielectric materials have been investigated. Lightning voltage impulses (1.2/50 μs) have been applied to a rod-plane gap of 250 mm, bridged by cylindrical solid dielectrics with circular cross-section of 10 mm. The materials used are polythene, polymethyl methacrylate (PMMA), and polyvinyl chloride (PVC). The characteristics of breakdown are compared with those pertinent to a similar rod-plane air gap. In each case, 50% breakdown voltage was found for both polarities. Then for each material 10 impulses were applied at 100% breakdown voltage for each polarity. The results show that there are three different types of paths taken by the discharges; they are the discharges that leap out of the rod at the HV triple junction (type-A), those follow the surface for a certain length and then leap out of the surface (type-B) and those entirely follow the surface (type-C). |
| first_indexed | 2024-03-06T08:47:16Z |
| format | Conference or Workshop Item |
| id | upm.eprints-40506 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:47:16Z |
| publishDate | 2012 |
| publisher | IEEE |
| record_format | dspace |
| spelling | upm.eprints-405062020-06-29T01:24:02Z http://psasir.upm.edu.my/id/eprint/40506/ Breakdown characteristics and optically visible discharge paths of surface flashover Gomes, Chandima Cooray, Vernon Rahman, Mahbubur Characteristics of surface flashover in the presence of different dielectric materials have been investigated. Lightning voltage impulses (1.2/50 μs) have been applied to a rod-plane gap of 250 mm, bridged by cylindrical solid dielectrics with circular cross-section of 10 mm. The materials used are polythene, polymethyl methacrylate (PMMA), and polyvinyl chloride (PVC). The characteristics of breakdown are compared with those pertinent to a similar rod-plane air gap. In each case, 50% breakdown voltage was found for both polarities. Then for each material 10 impulses were applied at 100% breakdown voltage for each polarity. The results show that there are three different types of paths taken by the discharges; they are the discharges that leap out of the rod at the HV triple junction (type-A), those follow the surface for a certain length and then leap out of the surface (type-B) and those entirely follow the surface (type-C). IEEE 2012 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/40506/1/Breakdown%20characteristics%20and%20optically%20visible%20discharge%20paths%20of%20surface%20flashover.pdf Gomes, Chandima and Cooray, Vernon and Rahman, Mahbubur (2012) Breakdown characteristics and optically visible discharge paths of surface flashover. In: 2012 IEEE Conference on Sustainable Utilization and Development in Engineering and Technology (STUDENT), 6-9 Oct. 2012, Universiti Tunku Abdul Rahman, Kuala Lumpur, Malaysia. (pp. 111-116). 10.1109/STUDENT.2012.6408376 |
| spellingShingle | Gomes, Chandima Cooray, Vernon Rahman, Mahbubur Breakdown characteristics and optically visible discharge paths of surface flashover |
| title | Breakdown characteristics and optically visible discharge paths of surface flashover |
| title_full | Breakdown characteristics and optically visible discharge paths of surface flashover |
| title_fullStr | Breakdown characteristics and optically visible discharge paths of surface flashover |
| title_full_unstemmed | Breakdown characteristics and optically visible discharge paths of surface flashover |
| title_short | Breakdown characteristics and optically visible discharge paths of surface flashover |
| title_sort | breakdown characteristics and optically visible discharge paths of surface flashover |
| url | http://psasir.upm.edu.my/id/eprint/40506/1/Breakdown%20characteristics%20and%20optically%20visible%20discharge%20paths%20of%20surface%20flashover.pdf |
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