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Deterioration characteristics of silicone oil for high voltage cable terminal in closed environment
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Jing ZHANG1, 2, Yuru CAI1, 2, Xiaojun ZHANG3, Jia CHEN1, 2, Lifeng CHENG1, 2, Weichao ZHANG4
Insulating Materials | 2023, 56(6) : 40 - 45
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Insulating Materials | 2023, 56(6): 40-45
• Insulation Technology •
Deterioration characteristics of silicone oil for high voltage cable terminal in closed environment
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Jing ZHANG1, 2, Yuru CAI1, 2, Xiaojun ZHANG3, Jia CHEN1, 2, Lifeng CHENG1, 2, Weichao ZHANG4
Affiliations
  • 1NARI Group (State Grid Electric Power Research Institute) Co., Ltd., Nanjing 211006, China
  • 2Wuhan NARI Limited Liability Company of State Grid Electric Power Research Institute, Wuhan 430074, China
  • 3State Grid Xinjiang Electric Power Company Limited Electric Power Research Institute, Urumqi 830011, China
  • 4School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China
Published: 2023-06-20 doi: 10.16790/j.cnki.1009-9239.im.2023.06.007
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In order to study the causes of dehydration of silicone oil for high voltage cable terminal in closed environment, and investigate its characterization parameters after deterioration, we built an experimental platform with closed environment for thermal ageing and electrical ageing, and tested the physical, chemical, and electrical properties of silicone oil under different ageing states. The results show that both thermal ageing and electrical ageing can cause the dehydration of silicone oil. The thermal ageing at 90℃ and low energy partial discharge have less effect on the deterioration of the physical, chemical, and electrical properties of silicone oil, while the intermittent spark discharge and continuous arc discharge have great effect on that. The breakdown voltage, dielectric loss factor, and volume resistivity have larger correlation with the water content, so that they can effectively represent the deterioration degree of silicon oil.

silicone oil  /  cable termination  /  closed environment  /  water content  /  thermal ageing  /  electrical ageing
Jing ZHANG, Yuru CAI, Xiaojun ZHANG, Jia CHEN, Lifeng CHENG, Weichao ZHANG. Deterioration characteristics of silicone oil for high voltage cable terminal in closed environment[J]. Insulating Materials, 2023 , 56 (6) : 40 -45 . DOI: 10.16790/j.cnki.1009-9239.im.2023.06.007
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2023.06.007
  • Receive Date：2022-06-02
  • Online Date：2025-11-21
  • Published：2023-06-20
Article Data
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History
  • Received：2022-06-02
  • Revised：2022-08-02
Funding
Affiliations
    1NARI Group (State Grid Electric Power Research Institute) Co., Ltd., Nanjing 211006, China
    2Wuhan NARI Limited Liability Company of State Grid Electric Power Research Institute, Wuhan 430074, China
    3State Grid Xinjiang Electric Power Company Limited Electric Power Research Institute, Urumqi 830011, China
    4School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.06.007
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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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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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