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Experimental Study on Surface Electric Field Distribution Characteristics and Flashover Voltage of Bushing Insulator at High Altitude
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Shiling ZHANG1, Lin GONG1, Wei SONG1, Zongren PENG2, Maoqiang BI3
Insulating Materials | 2022, 55(5) : 88 - 95
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Insulating Materials | 2022, 55(5): 88-95
• Test and Analysis •
Experimental Study on Surface Electric Field Distribution Characteristics and Flashover Voltage of Bushing Insulator at High Altitude
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Shiling ZHANG1, Lin GONG1, Wei SONG1, Zongren PENG2, Maoqiang BI3
Affiliations
  • 1State Grid Chongqing Electric Power Company Chongqing Electric Power Research Institute, Chongqing 401123, China
  • 2Xi'an Jiaotong University, Xi'an 710049, China
  • 3School of electrical and electronic engineering, Chongqing University of technology, Chongqing 400054, China
Published: 2022-05-20 doi: 10.16790/j.cnki.1009-9239.im.2022.05.013
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Firstly, the actual flashover test of large fittings-composite insulator-metal grounding body was carried out in the laboratory environment, the quantitative relationship curve between flashover voltage and space net distance was obtained. Further more, the three-dimensional finite element models of two typical structure of high voltage bushing composite insulators for capacitive core converter transformer and double-layer metal shield through wall were established, and their distribution characteristics of typical voltage and electric field under operating state were obtained, the relationships between local high field strength and corona, flashover phenomena of composite insulators for bushing were analyzed. On the basis of the above theoretical analysis and test data, the size altitude correction and umbrella skirt contour topology optimization of composite insulator for UHV AC/DC bushing were carried out. Finally, all the electric field strength of key parts can meet the control requirements, which proves that the rationality and effectiveness of the design of composite insulator for bushing at UHV level.

high voltage bushing composite insulator  /  compact design  /  high altitude  /  insulation distance  /  finite element model
Shiling ZHANG, Lin GONG, Wei SONG, Zongren PENG, Maoqiang BI. Experimental Study on Surface Electric Field Distribution Characteristics and Flashover Voltage of Bushing Insulator at High Altitude[J]. Insulating Materials, 2022 , 55 (5) : 88 -95 . DOI: 10.16790/j.cnki.1009-9239.im.2022.05.013
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doi: 10.16790/j.cnki.1009-9239.im.2022.05.013
  • Receive Date：2021-07-26
  • Online Date：2025-12-22
  • Published：2022-05-20
Article Data
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History
  • Received：2021-07-26
  • Revised：2021-09-07
Affiliations
    1State Grid Chongqing Electric Power Company Chongqing Electric Power Research Institute, Chongqing 401123, China
    2Xi'an Jiaotong University, Xi'an 710049, China
    3School of electrical and electronic engineering, Chongqing University of technology, Chongqing 400054, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.05.013
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表12种不同金属材料的力学参数
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Number of
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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