Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum
In the detection of power cable insulation defects, the accurate location and degree evaluation of insulation defects are crucial to the planned overhaul work of power cable. Taking XLPE coaxial cable as an example, in this paper, based on the transmission line distribution parameter model and the i...
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| Format: | Article |
| Language: | zho |
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Harbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd.
2025-07-01
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| Series: | Diance yu yibiao |
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| Online Access: | http://www.emijournal.net/dcyyb/ch/reader/create_pdf.aspx?file_no=20230129002&flag=1&journal_id=dcyyb&year_id=2025 |
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| author | SI Jie CHEN Zhi ZHAO Jian ZHOU Yuxiao |
| author_facet | SI Jie CHEN Zhi ZHAO Jian ZHOU Yuxiao |
| author_sort | SI Jie |
| collection | DOAJ |
| description | In the detection of power cable insulation defects, the accurate location and degree evaluation of insulation defects are crucial to the planned overhaul work of power cable. Taking XLPE coaxial cable as an example, in this paper, based on the transmission line distribution parameter model and the integral transformation theory, the impedance spectrum function of the power cable is decomposed through the e-2γx function system in the space domain, and a diagnostic function for insulation defects is proposed. By investigating the relationship between insulation defects and insulation defect function, an insulation defects detection method is proposed for the location and degree evaluation of L/C type insulation defects in power cable. The feasibility of the proposed detection method is verified by a simulation example, which can accurately locate and evaluate the degree of the insulation defects. |
| format | Article |
| id | doaj-art-34b98ff26c9e4735bfb4e8a618954af9 |
| institution | Kabale University |
| issn | 1001-1390 |
| language | zho |
| publishDate | 2025-07-01 |
| publisher | Harbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd. |
| record_format | Article |
| series | Diance yu yibiao |
| spelling | doaj-art-34b98ff26c9e4735bfb4e8a618954af92025-08-20T04:01:26ZzhoHarbin Jinhe Electrical Measurement & Instrumentation Magazine Publishing Co., Ltd.Diance yu yibiao1001-13902025-07-0162721722410.19753/j.issn1001-1390.2025.07.0251001-1390(2025)07-0217-08Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrumSI Jie0CHEN Zhi1ZHAO Jian2ZHOU Yuxiao3Zhejiang Tusheng Power Transmission and Transformation Engineering Co, Ltd, Wenzhou 325000, Zhejiang, ChinaZhejiang Tusheng Power Transmission and Transformation Engineering Co, Ltd, Wenzhou 325000, Zhejiang, ChinaZhejiang Tusheng Power Transmission and Transformation Engineering Co, Ltd, Wenzhou 325000, Zhejiang, ChinaZhejiang Tusheng Power Transmission and Transformation Engineering Co, Ltd, Wenzhou 325000, Zhejiang, ChinaIn the detection of power cable insulation defects, the accurate location and degree evaluation of insulation defects are crucial to the planned overhaul work of power cable. Taking XLPE coaxial cable as an example, in this paper, based on the transmission line distribution parameter model and the integral transformation theory, the impedance spectrum function of the power cable is decomposed through the e-2γx function system in the space domain, and a diagnostic function for insulation defects is proposed. By investigating the relationship between insulation defects and insulation defect function, an insulation defects detection method is proposed for the location and degree evaluation of L/C type insulation defects in power cable. The feasibility of the proposed detection method is verified by a simulation example, which can accurately locate and evaluate the degree of the insulation defects.http://www.emijournal.net/dcyyb/ch/reader/create_pdf.aspx?file_no=20230129002&flag=1&journal_id=dcyyb&year_id=2025insulation defects detectionimpedance spectrum of power cableintegral transformation analysisdistributed parameter model |
| spellingShingle | SI Jie CHEN Zhi ZHAO Jian ZHOU Yuxiao Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum Diance yu yibiao insulation defects detection impedance spectrum of power cable integral transformation analysis distributed parameter model |
| title | Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum |
| title_full | Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum |
| title_fullStr | Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum |
| title_full_unstemmed | Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum |
| title_short | Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum |
| title_sort | research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum |
| topic | insulation defects detection impedance spectrum of power cable integral transformation analysis distributed parameter model |
| url | http://www.emijournal.net/dcyyb/ch/reader/create_pdf.aspx?file_no=20230129002&flag=1&journal_id=dcyyb&year_id=2025 |
| work_keys_str_mv | AT sijie researchonfaultlocationandstateevaluationmethodofdiagnosticfunctionforpowercableinsulationdefectsbasedontheimpedancespectrum AT chenzhi researchonfaultlocationandstateevaluationmethodofdiagnosticfunctionforpowercableinsulationdefectsbasedontheimpedancespectrum AT zhaojian researchonfaultlocationandstateevaluationmethodofdiagnosticfunctionforpowercableinsulationdefectsbasedontheimpedancespectrum AT zhouyuxiao researchonfaultlocationandstateevaluationmethodofdiagnosticfunctionforpowercableinsulationdefectsbasedontheimpedancespectrum |