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Study on fast detection and evaluation technology for composite insulator umbrella skirt ageing in humid and hot environment
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Lincong CHEN1, Fuhong CAI2, Xiaolin CHEN1, Xinran LI1, Xiaotao FU1, Ruien ZHANG1, Zhen LIN2
Insulating Materials | 2023, 56(6) : 88 - 93
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Insulating Materials | 2023, 56(6): 88-93
• Test and Analysis •
Study on fast detection and evaluation technology for composite insulator umbrella skirt ageing in humid and hot environment
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Lincong CHEN1, Fuhong CAI2, Xiaolin CHEN1, Xinran LI1, Xiaotao FU1, Ruien ZHANG1, Zhen LIN2
Affiliations
  • 1Key Laboratory of Physical and Chemical Analysis for Electric Power of Hainan Province, Haikou 570100, China
  • 2School of Biomedical Engineering, Hainan University, Haikou 570228, China
Published: 2023-06-20 doi: 10.16790/j.cnki.1009-9239.im.2023.06.014
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The existing detection and evaluation technology for composite insulator mainly relies on offline methods, which is difficult to assess the ageing degree of insulators in large-scale operation quickly and conveniently. This article proposes a rapid detection and rating method for surface ageing degree of composite insulators based on hyperspectral technology. At first, the Fourier infrared spectral absorption peaks of Si-O-Si and Si-CH3 between the umbrella skirt and the substrate of aged composite insulator were compared, and then the ageing degree of insulator was rated. At last, the aging degree of insulator was classificated combining hyperspectral data with SVM algorithm models. The results show that the accuracy of the three classifications including slight, moderate, and severe is 71.8%, while the accuracy of the two classifications including sligh and severe is 97.3%. By using intensity threshold segmentation method, it is possible to remove contaminated areas from composite insulator images, and extract ageing areas.

composite insulator  /  ageing rating  /  hyperspectral technology  /  fast detection  /  support vector machine
Lincong CHEN, Fuhong CAI, Xiaolin CHEN, Xinran LI, Xiaotao FU, Ruien ZHANG, Zhen LIN. Study on fast detection and evaluation technology for composite insulator umbrella skirt ageing in humid and hot environment[J]. Insulating Materials, 2023 , 56 (6) : 88 -93 . DOI: 10.16790/j.cnki.1009-9239.im.2023.06.014
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2023.06.014
  • Receive Date：2022-07-02
  • Online Date：2025-11-21
  • Published：2023-06-20
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  • Received：2022-07-02
  • Revised：2022-08-31
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    1Key Laboratory of Physical and Chemical Analysis for Electric Power of Hainan Province, Haikou 570100, China
    2School of Biomedical Engineering, Hainan University, Haikou 570228, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.06.014
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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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