Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower
Rods and plates at the connections in composite insulating material towers are commonly fixed to each other by metal bolts, which may cause electrical field distortion at the connections. So, the rod–plate connections are prone to partial discharge under polluted and wet conditions, and the resultin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/9/3712 |
| _version_ | 1827743024596123648 |
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| author | Jinpeng Hao Jinzhu Huang Ziyi Fang Xiao He Qiang Wu Xiaolong Gu Yu Wang Hong Wu |
| author_facet | Jinpeng Hao Jinzhu Huang Ziyi Fang Xiao He Qiang Wu Xiaolong Gu Yu Wang Hong Wu |
| author_sort | Jinpeng Hao |
| collection | DOAJ |
| description | Rods and plates at the connections in composite insulating material towers are commonly fixed to each other by metal bolts, which may cause electrical field distortion at the connections. So, the rod–plate connections are prone to partial discharge under polluted and wet conditions, and the resulting electric field and temperature changes can affect the mechanical and electrical performance of the whole tower. In this paper, an artificial pollution test synchronous observation platform with an infrared and visible light imager, leakage current, and voltage measurement was built to observe the dry band formation and partial discharge at the simplified rod–plate connections in the composite towers. Then, the electric field simulation of the rod–plate connection specimen showed the current density distribution. When combining the test and the simulation, it was concluded that the cause of the partial discharge was the distortion of the current density and, thus, measures to suppress the partial discharge at the rod–plate connections were proposed. Finally, it was verified that the measures can improve the current density distortion phenomenon, delay dry band formation, and effectively suppress the partial discharge at the rod–plate connections under the same test conditions. |
| first_indexed | 2024-03-11T04:20:10Z |
| format | Article |
| id | doaj.art-743523a8b5074a37841002357cbf9e9e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T04:20:10Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-743523a8b5074a37841002357cbf9e9e2023-11-17T22:50:43ZengMDPI AGEnergies1996-10732023-04-01169371210.3390/en16093712Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite TowerJinpeng Hao0Jinzhu Huang1Ziyi Fang2Xiao He3Qiang Wu4Xiaolong Gu5Yu Wang6Hong Wu7State Grid Ningxia Electric Power Research Institute, Yinchuan 750011, ChinaPower Grid Guyuan Electric Power Supply Company, Guyuan 756000, ChinaState Grid Ningxia Electric Power Research Institute, Yinchuan 750011, ChinaSchool of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, ChinaSchool of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, ChinaSchool of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, ChinaSchool of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, ChinaState Grid Ningxia Electric Power Research Institute, Yinchuan 750011, ChinaRods and plates at the connections in composite insulating material towers are commonly fixed to each other by metal bolts, which may cause electrical field distortion at the connections. So, the rod–plate connections are prone to partial discharge under polluted and wet conditions, and the resulting electric field and temperature changes can affect the mechanical and electrical performance of the whole tower. In this paper, an artificial pollution test synchronous observation platform with an infrared and visible light imager, leakage current, and voltage measurement was built to observe the dry band formation and partial discharge at the simplified rod–plate connections in the composite towers. Then, the electric field simulation of the rod–plate connection specimen showed the current density distribution. When combining the test and the simulation, it was concluded that the cause of the partial discharge was the distortion of the current density and, thus, measures to suppress the partial discharge at the rod–plate connections were proposed. Finally, it was verified that the measures can improve the current density distortion phenomenon, delay dry band formation, and effectively suppress the partial discharge at the rod–plate connections under the same test conditions.https://www.mdpi.com/1996-1073/16/9/3712composite towerrod–plate connectioninfrared temperaturepartial dischargesuppression measures |
| spellingShingle | Jinpeng Hao Jinzhu Huang Ziyi Fang Xiao He Qiang Wu Xiaolong Gu Yu Wang Hong Wu Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower Energies composite tower rod–plate connection infrared temperature partial discharge suppression measures |
| title | Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower |
| title_full | Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower |
| title_fullStr | Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower |
| title_full_unstemmed | Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower |
| title_short | Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower |
| title_sort | suppression measures of partial discharge at rod plate connection in composite tower |
| topic | composite tower rod–plate connection infrared temperature partial discharge suppression measures |
| url | https://www.mdpi.com/1996-1073/16/9/3712 |
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