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Study on Ageing Diagnostic Method of XLPE Cables Based on Broadband Impedance Spectroscopy
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Bingliang SHAN1, Shuning LI1, Maolun SUN1, Chengqian DU1, Wei WANG1, Chengrong LI1, Xiaokai MENG2
Insulating Materials | 2022, 55(2) : 84 - 90
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Insulating Materials | 2022, 55(2): 84-90
• Insulation Technology •
Study on Ageing Diagnostic Method of XLPE Cables Based on Broadband Impedance Spectroscopy
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Bingliang SHAN1, Shuning LI1, Maolun SUN1, Chengqian DU1, Wei WANG1, Chengrong LI1, Xiaokai MENG2
Affiliations
  • 1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, China
  • 2Electric Power Research Institute of State Grid Shanxi Electric Power Company, Taiyuan 030001, China
Published: 2022-02-20 doi: 10.16790/j.cnki.1009-9239.im.2022.02.012
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In this paper, the theoretical basis for ageing diagnosis of XLPE cables based on the electromagnetic wave velocity in cables was elaborated, and the calculating method of average wave velocity according to input impedance spectrum was introduced. Then the effect of uniform ageing and segmented ageing of cables on average wave velocity was studied by simulation, and a method to diagnose cable ageing on the basis of average wave velocity was proposed. Finally, cable models including uniform thermal ageing and segmented thermal ageing were built in the laboratory, and the effectiveness of the above diagnosing method was verified. The results show that the average wave velocity of the accelerated uniform ageing cable and the segmented ageing cable decreases from 166 m/μs to 139 m/μs and 152 m/μs, respectively. The more serious the ageing of cables, the lower the wave velocity in cables. The proposed method can provide more information for ageing diagnosis of XLPE cables.

XLPE cable  /  ageing diagnosis  /  input impedance spectrum  /  velocity of electromagnetic wave  /  non-destructive diagnostic method
Bingliang SHAN, Shuning LI, Maolun SUN, Chengqian DU, Wei WANG, Chengrong LI, Xiaokai MENG. Study on Ageing Diagnostic Method of XLPE Cables Based on Broadband Impedance Spectroscopy[J]. Insulating Materials, 2022 , 55 (2) : 84 -90 . DOI: 10.16790/j.cnki.1009-9239.im.2022.02.012
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.02.012
  • Receive Date：2021-07-28
  • Online Date：2025-12-22
  • Published：2022-02-20
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History
  • Received：2021-07-28
  • Revised：2021-09-14
Affiliations
    1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, China
    2Electric Power Research Institute of State Grid Shanxi Electric Power Company, Taiyuan 030001, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.02.012
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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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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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