Qunzhen Zhang
ABSTRACT
During the operation of the power grid, cables may be damaged by harmful factors such as aging, corrosion, and external forces, leading to cable breakage. Cable breakage can cause adverse consequences such as power outages and personal injury. The existing cable joint connection methods have more or less defects such as being unsuitable for frequent disassembly and assembly, high installation technology requirements, inability to be used for a long time, inability to connect multiple cables simultaneously, and high maintenance costs. Therefore, they have not been widely produced and used. In response to the limitations of existing cable joint connection methods, this paper designs a new type of prefabricated positive and negative tooth power cable joint. While effectively ensuring the electrical performance required by the cable joint, the cable joint is more tightly connected. It is customized for factory production and can be directly carried to the maintenance site for installation in case of cable failure. The repair cost is low, which not only improves the reliability of the cable joint but also reduces maintenance time, Reduced maintenance costs and construction difficulty.
- YOU J, JIA Z, WANG Y, 2014. Evaluation analysis of XLPE cable's electrical condition //Electrical Insulation and Dielectric Phenomena. IEEE, 470-473.Google Scholar
- Qian Yichao. 2022. Research on Safety Evaluation of Cable Lines in Urban Distribution Networks. North China University of Technology, DOI: 10.27108/dcnki. ghelu. 2021.000879.Google ScholarCross Ref
- Cao Wen, Zhang Min, Liu Qian, 2018. The influence of moisture at the composite interface of cable joints on their flashover characteristics. High Voltage Technology, 44 (11): 3699-3706.Google Scholar
- Xue Yiwei, SS, Sun Qizhen, 2021. Application research on image recognition based defect algorithm for 10 kV cable joint construction . Electrical Materials, (6): 20-24.Google Scholar
- Zhang Jing, Hu Shengnan, He Liang, 2022. The effect of long-term cold and hot cycles on the interface pressure of cable accessories Insulation Materials, 55 (2): 73-77.Google Scholar
- Zhao Lihua, Qiu Jiuhao, Li Yanshu, 2021. Study on the evolution law of interface pressure in cable intermediate joints under silicone environment. Insulation Materials, 54 (6): 74-78.Google Scholar
- HAMDAN M A, PILGRIM J A, LEWIN P L. 2019. Thermomechanical analysis of solid interfaces in HVAC cable joints. IEEE Transactions on Dielectric and Electrical Insulation, 26 (6): 1779-1787.Google ScholarCross Ref
- Tian Yu. 2020. Comparative study on the degradation characteristics of 10 kV heat shrink and cold shrink joints under partial discharge. Beijing: North China Electric Power UniversityGoogle Scholar
- Yang Fan, Zeng Chun, Ruan Ling, 2014. Diagnosis method for moisture defects at the composite interface of medium voltage cross-linked cable joints. High Voltage Electrical Appliances, 50 (5): 1-5.Google Scholar
- Ma Yongze. 2019. Analysis of Advanced Concepts in Power System Distribution Network Planning, Southern Agricultural Machinery, 50 (12): 239.Google Scholar
- Mo Jiefeng, Liu Jiahong, Yang Zhizhen, 2023. Analysis of fault causes and countermeasures for intermediate joints in high-voltage cables. Electronic Technology, 52 (10): 204-205.Google Scholar
- Juleti Abulizi, Liu Qi, Yu Liangliang, 2023. Partial Discharge Very High Frequency Sensing and Detection Technology for High Voltage Cables. High Voltage Technology, 49 (S1): 27-31. DOI: 10.13336/j.1003-6520. hve.20230346.Google ScholarCross Ref
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