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Comprehensive evaluation for ageing condition of XLPE cable based on radar chart of multidimensional dielectric parameters
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Weijun WANG1, Min CHEN1, Hui YIN1, Yuan LI2
Insulating Materials | 2024, 57(2) : 72 - 79
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Insulating Materials | 2024, 57(2): 72-79
• Insulation Technology •
Comprehensive evaluation for ageing condition of XLPE cable based on radar chart of multidimensional dielectric parameters
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Weijun WANG1, Min CHEN1, Hui YIN1, Yuan LI2
Affiliations
  • 1Guizhou Power Grid Co., Ltd. Guiyang Power Supply Bureau, Guiyang 550004, China
  • 2College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Published: 2024-02-20 doi: 10.16790/j.cnki.1009-9239.im.2024.02.010
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Polarization-depolarization current (PDC) method is widely used to evaluate the insulation status of cross-linked polyethylene (XLPE) cables. However, the existing studies tend to use a single dielectric characteristic parameter to reflect the ageing condition of insulation, which does not make full use of the rich dielectric response information in PDC results, and a single dielectric parameter is difficult to apply to different ageing types. To solve the above problems, an improved radar spectroscopy evaluation method was proposed to evaluate the insulation condition of XLPE cable by comprehensively utilizing multidimensional dielectric parameters. To verify the effectiveness of the proposed method, PDC test was conducted on short XLPE cable specimens after being artificially accelerated thermal and water tree ageing. Then the PDC results were analyzed by the proposed multidimensional dielectric parameter radar spectroscopy method. The results show that the area parameter of polygon in radar chart can effectively reflect the degree of ageing in both types of aged XLPE cables.

XLPE cable  /  cable insulation status  /  low frequency signal induction  /  insulation ageing  /  online monitoring
Weijun WANG, Min CHEN, Hui YIN, Yuan LI. Comprehensive evaluation for ageing condition of XLPE cable based on radar chart of multidimensional dielectric parameters[J]. Insulating Materials, 2024 , 57 (2) : 72 -79 . DOI: 10.16790/j.cnki.1009-9239.im.2024.02.010
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Year 2024 volume 57 Issue 2
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2024.02.010
  • Receive Date：2023-04-03
  • Online Date：2025-12-22
  • Published：2024-02-20
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History
  • Received：2023-04-03
  • Revised：2023-06-08
Funding
Affiliations
    1Guizhou Power Grid Co., Ltd. Guiyang Power Supply Bureau, Guiyang 550004, China
    2College of Electrical Engineering, Sichuan University, Chengdu 610065, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2024.02.010
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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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