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Application of electroluminescent coating in defects self-diagnosis for GIS basin insulators
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Hechen LIU1, Wenhao TIAN1, Huaiqing TIAN1, Yi JIANG2, Xiong WU2
Insulating Materials | 2026, 59(2) : 108 - 116
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Insulating Materials | 2026, 59(2): 108-116
Application of electroluminescent coating in defects self-diagnosis for GIS basin insulators
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Hechen LIU1, Wenhao TIAN1, Huaiqing TIAN1, Yi JIANG2, Xiong WU2
Affiliations
  • 1Key Laboratory of New Materials and Equipment for Green and Efficient Electrical Engineering of Hebei Province, North China Electric Power University, Baoding 071003, China
  • 2Wuhan Nanrui Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
Published: 2026-02-20 doi: 10.16790/j.cnki.1009-9239.im.2026.02.012
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Regarding the issue of metal suspended particle defects in basin insulators, based on the electroluminescence principles, a ZnS:Cu/epoxy resin luminescent composite coating was prepared by doping sulfurized zinc-based material (ZnS:Cu) into epoxy resin (EP), and its properties were characterized. The luminescence pattern of the coating was investigated using rod-plate electrodes, and a defect experiment was simulated on basin-type insulator to explore the feasibility of the ZnS:Cu/epoxy resin coating in defect self-diagnosis. The results show that with the increase of ZnS:Cu content, the surface flashover voltage of the ZnS:Cu/epoxy resin composite coating rises, and the dielectric loss factor increases. The composite coating has a certain luminous threshold, when the mass fraction of ZnS:Cu is 10%-30% and the coating thickness is 0.1-0.3 mm, its luminous intensity increases with the increase of electric field strength, ZnS:Cu content, and coating thickness. Moreover, after spraying the ZnS:Cu/epoxy resin coating on the basin insulator, the defect location can be determined through the luminescence, achieving the purpose of defect diagnosis, which provides a new idea for the defect identification and diagnosis of power insulation equipment.

GIS  /  basin insulators  /  electroluminescent  /  composite coatings  /  defect self-diagnosis
Hechen LIU, Wenhao TIAN, Huaiqing TIAN, Yi JIANG, Xiong WU. Application of electroluminescent coating in defects self-diagnosis for GIS basin insulators[J]. Insulating Materials, 2026 , 59 (2) : 108 -116 . DOI: 10.16790/j.cnki.1009-9239.im.2026.02.012
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Year 2026 volume 59 Issue 2
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2026.02.012
  • Receive Date：2025-05-03
  • Online Date：2026-09-10
  • Published：2026-02-20
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History
  • Received：2025-05-03
  • Revised：2025-07-17
Affiliations
    1Key Laboratory of New Materials and Equipment for Green and Efficient Electrical Engineering of Hebei Province, North China Electric Power University, Baoding 071003, China
    2Wuhan Nanrui Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2026.02.012
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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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