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Review on Surface Defects and Diagnosis Methods of Basin-type Insulator in GIS
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Shuai HAN1, Fei GAO1, Sizhuo LIAO1, Rui GUO2, Jian WANG2, Qingmin LI2
Insulating Materials | 2022, 55(2) : 12 - 22
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Insulating Materials | 2022, 55(2): 12-22
• Review •
Review on Surface Defects and Diagnosis Methods of Basin-type Insulator in GIS
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Shuai HAN1, Fei GAO1, Sizhuo LIAO1, Rui GUO2, Jian WANG2, Qingmin LI2
Affiliations
  • 1China Electric Power Research Institute, Beijing 100192, China
  • 2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Published: 2022-02-20 doi: 10.16790/j.cnki.1009-9239.im.2022.02.002
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As the weakest insulation link of gas insulated substation (GIS), the surface defects of basin-type insulator are the key problems in the research of improving the insulation strength of GIS. This paper firstly introduced the generation and development mechanism of common surface defects of basin-type insulator, such as bubble defects, impurity defects, dirty surface, and crack defects. Secondly, the mechanism of flashover induced by surface defects of basin-type insulator was analyzed and summarized, it is explicit that the surface electric field distribution and surface charge accumulation of basin-type insulator are the important factors affecting the flashover of insulator; In addition, the advantages and disadvantages of the existing diagnosis methods of basin-type insulator surface defects were summarized. Finally, In view of the shortcomings of partial discharge detection methods for basin-type insulator surface defects under power frequency voltage excitation, starting with the voltage mode of partial discharge excitation, the current situation of partial discharge detection methods for basin-type insulator surface defects under different voltage excitation was studied and summarized.

basin-type insulator  /  surface defects  /  flashover  /  partial discharge  /  diagnosis methods
Shuai HAN, Fei GAO, Sizhuo LIAO, Rui GUO, Jian WANG, Qingmin LI. Review on Surface Defects and Diagnosis Methods of Basin-type Insulator in GIS[J]. Insulating Materials, 2022 , 55 (2) : 12 -22 . DOI: 10.16790/j.cnki.1009-9239.im.2022.02.002
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.02.002
  • Receive Date：2021-03-12
  • Online Date：2025-12-22
  • Published：2022-02-20
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History
  • Received：2021-03-12
  • Revised：2021-04-22
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Affiliations
    1China Electric Power Research Institute, Beijing 100192, China
    2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.02.002
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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