Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current
To reduce the induction voltage in the metal sheath, cross-bonded grounding is a widely adopted method in long-distance high voltage power cables, but this introduces challenges to the online monitoring and diagnosis of cable insulation. An online monitoring and diagnosis method for cable insulation...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9762713/ |
| _version_ | 1828824338821808128 |
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| author | Bo Zhu Xiaoyang Yu Ligang Tian Xinlao Wei |
| author_facet | Bo Zhu Xiaoyang Yu Ligang Tian Xinlao Wei |
| author_sort | Bo Zhu |
| collection | DOAJ |
| description | To reduce the induction voltage in the metal sheath, cross-bonded grounding is a widely adopted method in long-distance high voltage power cables, but this introduces challenges to the online monitoring and diagnosis of cable insulation. An online monitoring and diagnosis method for cable insulation based on the analysis of resistive current is proposed in this paper. A theoretical formula for the separation between leakage current and sheath current was derived, and a theoretical formula for the separation between resistive current and leakage current was obtained. An equivalent circuit of a three-phase long distance cable was established using the MATLAB/Simulink platform. The simulation was used to model three typical faults: cable insulation deterioration, open sheath circuit faults, and the sheath breakdown of intermediate joint faults. The results show that the method can be used to monitor each cable’s insulation state under metal sheath cross-bonded, and it also can determine the open sheath circuit faults and fault joint location using the measured current values by the corresponding current sensors increases significantly. Based on the analyses, diagnostic criteria are established for different types of cable faults and fault locations. |
| first_indexed | 2024-12-12T13:53:36Z |
| format | Article |
| id | doaj.art-4f96f5ecf81c426284c66d1d58364251 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-12T13:53:36Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-4f96f5ecf81c426284c66d1d583642512022-12-22T00:22:30ZengIEEEIEEE Access2169-35362022-01-0110460574606610.1109/ACCESS.2022.31701459762713Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath CurrentBo Zhu0https://orcid.org/0000-0001-5908-6249Xiaoyang Yu1https://orcid.org/0000-0002-3419-4697Ligang Tian2Xinlao Wei3School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, ChinaSchool of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, ChinaSchool of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, ChinaSchool of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, ChinaTo reduce the induction voltage in the metal sheath, cross-bonded grounding is a widely adopted method in long-distance high voltage power cables, but this introduces challenges to the online monitoring and diagnosis of cable insulation. An online monitoring and diagnosis method for cable insulation based on the analysis of resistive current is proposed in this paper. A theoretical formula for the separation between leakage current and sheath current was derived, and a theoretical formula for the separation between resistive current and leakage current was obtained. An equivalent circuit of a three-phase long distance cable was established using the MATLAB/Simulink platform. The simulation was used to model three typical faults: cable insulation deterioration, open sheath circuit faults, and the sheath breakdown of intermediate joint faults. The results show that the method can be used to monitor each cable’s insulation state under metal sheath cross-bonded, and it also can determine the open sheath circuit faults and fault joint location using the measured current values by the corresponding current sensors increases significantly. Based on the analyses, diagnostic criteria are established for different types of cable faults and fault locations.https://ieeexplore.ieee.org/document/9762713/Long distance power cablecross-bondedresistive currentleakage currentsheath currentfault diagnosis |
| spellingShingle | Bo Zhu Xiaoyang Yu Ligang Tian Xinlao Wei Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current IEEE Access Long distance power cable cross-bonded resistive current leakage current sheath current fault diagnosis |
| title | Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current |
| title_full | Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current |
| title_fullStr | Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current |
| title_full_unstemmed | Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current |
| title_short | Insulation Monitoring and Diagnosis of Faults in Cross-Bonded Cables Based on the Resistive Current and Sheath Current |
| title_sort | insulation monitoring and diagnosis of faults in cross bonded cables based on the resistive current and sheath current |
| topic | Long distance power cable cross-bonded resistive current leakage current sheath current fault diagnosis |
| url | https://ieeexplore.ieee.org/document/9762713/ |
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