Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings
The arrangement of insulator strings has an effect on its pollution flashover characteristics. A new arrangement of insulator strings, inverted T-type arrangement, is proposed in this study. The electric field distribution is simulated and the pollution flashover characteristics are tested in an art...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
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| Series: | High Voltage |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/hve.2018.5088 |
| _version_ | 1818434922672553984 |
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| author | Xingliang Jiang Xiaodong Ren Han Wang Xingbo Han Conglai Bi Zhiyu Li Ledong Hou |
| author_facet | Xingliang Jiang Xiaodong Ren Han Wang Xingbo Han Conglai Bi Zhiyu Li Ledong Hou |
| author_sort | Xingliang Jiang |
| collection | DOAJ |
| description | The arrangement of insulator strings has an effect on its pollution flashover characteristics. A new arrangement of insulator strings, inverted T-type arrangement, is proposed in this study. The electric field distribution is simulated and the pollution flashover characteristics are tested in an artificial climate chamber. The test results indicate that the inverted T-type arrangement can greatly improve the flashover voltage of polluted insulator strings, the ‘7 + 2’ inverted T-type arrangement can increase the flashover voltage of each insulator by 8.5% on average, and the ‘3 + 3’ inverted T-type arrangement can increase the flashover voltage of each insulator by 13.4%. The discharge process is different from that of the normal suspension string when the insulator string is inverted T-shaped, i.e. a local arc is produced at the low voltage end of the insulator string and develops downward along the suspension part. While as for the horizontal tension string parts, it is difficult to generate arc during discharge development. |
| first_indexed | 2024-12-14T16:44:41Z |
| format | Article |
| id | doaj.art-36f1980369014b92987038fb1ab562ea |
| institution | Directory Open Access Journal |
| issn | 2397-7264 |
| language | English |
| last_indexed | 2024-12-14T16:44:41Z |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | High Voltage |
| spelling | doaj.art-36f1980369014b92987038fb1ab562ea2022-12-21T22:54:13ZengWileyHigh Voltage2397-72642019-01-0110.1049/hve.2018.5088HVE.2018.5088Effect of inverted T arrangement on AC pollution flashover characteristics of insulator stringsXingliang Jiang0Xiaodong Ren1Han Wang2Xingbo Han3Conglai Bi4Zhiyu Li5Ledong Hou6College of Electrical Engineering, Chongqing UniversityCollege of Electrical Engineering, Chongqing UniversityCollege of Electrical Engineering, Chongqing UniversityCollege of Electrical Engineering, Chongqing UniversityCollege of Electrical Engineering, Chongqing UniversityCollege of Electrical Engineering, Chongqing UniversityCollege of Electrical Engineering, Chongqing UniversityThe arrangement of insulator strings has an effect on its pollution flashover characteristics. A new arrangement of insulator strings, inverted T-type arrangement, is proposed in this study. The electric field distribution is simulated and the pollution flashover characteristics are tested in an artificial climate chamber. The test results indicate that the inverted T-type arrangement can greatly improve the flashover voltage of polluted insulator strings, the ‘7 + 2’ inverted T-type arrangement can increase the flashover voltage of each insulator by 8.5% on average, and the ‘3 + 3’ inverted T-type arrangement can increase the flashover voltage of each insulator by 13.4%. The discharge process is different from that of the normal suspension string when the insulator string is inverted T-shaped, i.e. a local arc is produced at the low voltage end of the insulator string and develops downward along the suspension part. While as for the horizontal tension string parts, it is difficult to generate arc during discharge development.https://digital-library.theiet.org/content/journals/10.1049/hve.2018.5088insulator contaminationflashoverAC pollution flashover characteristicsflashover voltagepolluted insulator stringsinverted T-type arrangementelectric field distributionartificial climate chamberdischarge processnormal suspension stringlocal arc |
| spellingShingle | Xingliang Jiang Xiaodong Ren Han Wang Xingbo Han Conglai Bi Zhiyu Li Ledong Hou Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings High Voltage insulator contamination flashover AC pollution flashover characteristics flashover voltage polluted insulator strings inverted T-type arrangement electric field distribution artificial climate chamber discharge process normal suspension string local arc |
| title | Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings |
| title_full | Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings |
| title_fullStr | Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings |
| title_full_unstemmed | Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings |
| title_short | Effect of inverted T arrangement on AC pollution flashover characteristics of insulator strings |
| title_sort | effect of inverted t arrangement on ac pollution flashover characteristics of insulator strings |
| topic | insulator contamination flashover AC pollution flashover characteristics flashover voltage polluted insulator strings inverted T-type arrangement electric field distribution artificial climate chamber discharge process normal suspension string local arc |
| url | https://digital-library.theiet.org/content/journals/10.1049/hve.2018.5088 |
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