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Ageing Lifetime Evaluation of Transformer Oil Containing Distributed Optical Fiber
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Lu SUN1, Yuan TIAN1, Shuguo GAO1, Dongyang LI2, 3, Yunpeng LIU2, 3, Xiaozhou FAN2, 3
Insulating Materials | 2022, 55(9) : 63 - 67
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Insulating Materials | 2022, 55(9): 63-67
• Insulation Technology •
Ageing Lifetime Evaluation of Transformer Oil Containing Distributed Optical Fiber
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Lu SUN1, Yuan TIAN1, Shuguo GAO1, Dongyang LI2, 3, Yunpeng LIU2, 3, Xiaozhou FAN2, 3
Affiliations
  • 1State Grid Hebei Electric Power Company Electric Power Research Institute, Shijiazhuang 050021, China
  • 2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
  • 3Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
Published: 2022-09-20 doi: 10.16790/j.cnki.1009-9239.im.2022.09.011
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In order to explore the influence of distributed optical fiber on the ageing life of transformer insulation system, we carried out accelerated thermal ageing tests on the transformer oil sample containing distributed optical fiber at 110, 120, 130℃. The breakdown voltage of the samples was measured regularly during thermal ageing process. On the basis of the breakdown voltage cumulative loss rate, the relationship between the activation energy of the transformer oil containing optical fiber and pure oil was analyzed, a method for calculating activation energy of transformer oil containing optical fiber was proposed, and a thermal ageing life model of transformer oil containing optical fiber was constructed. The results show that the optical fiber in the transformer oil can affect the strength of the transformer insulation system, and the ethylene tetrafluoroethylene (ETFE) optical fiber has the least effect on the ageing of transformer oil. The calculated results of three life evaluation models of transformer oil containing ETFE, poly(tetrafluoroethylene) (PTFE), and thermoplastic polyester-ether elastomer (TPEE) fiber established based on calculated activation energy and breakdown voltage cumulative loss kinetic equation, are in good agreement with the evaluation results of 10℃ life criterion in engineering experience, which verifies the effectiveness of the model.

distributed sensing optical fiber  /  transformer oil  /  life evaluation  /  activation energy
Lu SUN, Yuan TIAN, Shuguo GAO, Dongyang LI, Yunpeng LIU, Xiaozhou FAN. Ageing Lifetime Evaluation of Transformer Oil Containing Distributed Optical Fiber[J]. Insulating Materials, 2022 , 55 (9) : 63 -67 . DOI: 10.16790/j.cnki.1009-9239.im.2022.09.011
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doi: 10.16790/j.cnki.1009-9239.im.2022.09.011
  • Receive Date：2021-09-10
  • Online Date：2025-12-23
  • Published：2022-09-20
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History
  • Received：2021-09-10
  • Revised：2021-11-10
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Affiliations
    1State Grid Hebei Electric Power Company Electric Power Research Institute, Shijiazhuang 050021, China
    2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
    3Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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