Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods
Among all failures in cable circuits, the failure rate of cable joints is much higher than that in cable bodies. In an effort to reduce cable failure rates and improve the reliability of power cable systems, this article studies the possibility of increasing the length of a cable section and thus re...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-06-01
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| Series: | High Voltage |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0011 |
| _version_ | 1818644541181263872 |
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| author | Mingzhen Li Chengke Zhou Chengke Zhou Wenjun Zhou Wenjun Zhou Jun Zhang Liang Zhang Leiming Yao |
| author_facet | Mingzhen Li Chengke Zhou Chengke Zhou Wenjun Zhou Wenjun Zhou Jun Zhang Liang Zhang Leiming Yao |
| author_sort | Mingzhen Li |
| collection | DOAJ |
| description | Among all failures in cable circuits, the failure rate of cable joints is much higher than that in cable bodies. In an effort to reduce cable failure rates and improve the reliability of power cable systems, this article studies the possibility of increasing the length of a cable section and thus reducing the number of cable joints via alternative sheath bonding methods. As the maximum length of an electrical cable section is governed by the permissible sheath standing voltage, this article first proposes a precise sheath voltage calculation model without approximations and simplifications. The sheath voltage per unit length has then been calculated for each bonding method using the proposed model. The maximum length of a cable section has then been calculated, based on the permissible sheath standing voltage, for the various sheath bonding methods. Results show that the traditional 500-m minor section length could be increased to 2.21 km by using the single-point bonding method. The maximum distance can be further lengthened by increasing the physical spacing among the three-phase cables. The economic comparison for each bonding method has also been made. Finally, the proposed method has been applied to a HV cable circuit already in operation, and the operational data confirms the feasibility. |
| first_indexed | 2024-12-17T00:16:29Z |
| format | Article |
| id | doaj.art-3a0bb7d7acbf41a6aa6bbd81dffafcfd |
| institution | Directory Open Access Journal |
| issn | 2397-7264 |
| language | English |
| last_indexed | 2024-12-17T00:16:29Z |
| publishDate | 2019-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | High Voltage |
| spelling | doaj.art-3a0bb7d7acbf41a6aa6bbd81dffafcfd2022-12-21T22:10:41ZengWileyHigh Voltage2397-72642019-06-0110.1049/hve.2019.0011HVE.2019.0011Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methodsMingzhen Li0Chengke Zhou1Chengke Zhou2Wenjun Zhou3Wenjun Zhou4Jun Zhang5Liang Zhang6Leiming Yao7School of Electrical Engineering and Automation, Wuhan UniversitySchool of Electrical Engineering and Automation, Wuhan UniversitySchool of Electrical Engineering and Automation, Wuhan UniversitySchool of Electrical Engineering and Automation, Wuhan UniversitySchool of Electrical Engineering and Automation, Wuhan UniversityState Grid Jiangsu Electric Power Company, State Grid Corporation of ChinaState Grid Jiangsu Electric Power Company, State Grid Corporation of ChinaState Grid Jiangsu Electric Power Company, State Grid Corporation of ChinaAmong all failures in cable circuits, the failure rate of cable joints is much higher than that in cable bodies. In an effort to reduce cable failure rates and improve the reliability of power cable systems, this article studies the possibility of increasing the length of a cable section and thus reducing the number of cable joints via alternative sheath bonding methods. As the maximum length of an electrical cable section is governed by the permissible sheath standing voltage, this article first proposes a precise sheath voltage calculation model without approximations and simplifications. The sheath voltage per unit length has then been calculated for each bonding method using the proposed model. The maximum length of a cable section has then been calculated, based on the permissible sheath standing voltage, for the various sheath bonding methods. Results show that the traditional 500-m minor section length could be increased to 2.21 km by using the single-point bonding method. The maximum distance can be further lengthened by increasing the physical spacing among the three-phase cables. The economic comparison for each bonding method has also been made. Finally, the proposed method has been applied to a HV cable circuit already in operation, and the operational data confirms the feasibility.https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0011power cable insulationcable sheathingbonding processescable bodiescable failure ratespower cable systemscable jointsalternative sheath bonding methodsmaximum lengthelectrical cable sectionpermissible sheath standing voltageprecise sheath voltage calculation modelsection lengthsingle-point bonding methodthree-phase cableshv cable circuithigh-voltage cable sectionalternative bonding methodscable circuitsfailure ratesize 2.21 km |
| spellingShingle | Mingzhen Li Chengke Zhou Chengke Zhou Wenjun Zhou Wenjun Zhou Jun Zhang Liang Zhang Leiming Yao Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods High Voltage power cable insulation cable sheathing bonding processes cable bodies cable failure rates power cable systems cable joints alternative sheath bonding methods maximum length electrical cable section permissible sheath standing voltage precise sheath voltage calculation model section length single-point bonding method three-phase cables hv cable circuit high-voltage cable section alternative bonding methods cable circuits failure rate size 2.21 km |
| title | Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods |
| title_full | Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods |
| title_fullStr | Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods |
| title_full_unstemmed | Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods |
| title_short | Feasibility study on lengthening the high-voltage cable section and reducing the number of cable joints via alternative bonding methods |
| title_sort | feasibility study on lengthening the high voltage cable section and reducing the number of cable joints via alternative bonding methods |
| topic | power cable insulation cable sheathing bonding processes cable bodies cable failure rates power cable systems cable joints alternative sheath bonding methods maximum length electrical cable section permissible sheath standing voltage precise sheath voltage calculation model section length single-point bonding method three-phase cables hv cable circuit high-voltage cable section alternative bonding methods cable circuits failure rate size 2.21 km |
| url | https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0011 |
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