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Effect of 2,6-Di-tert-butyl-p-cresol on Insulating Properties of Vegetable Insulating Oil for Transformers
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Tao ZHANG1, Jianwei HAN1, 2, Wenyan YANG2, Shuo WANG1, Zhengbo DU1, Ning FENG3, Chan CHEN3
Insulating Materials | 2021, 54(1) : 7 - 12
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Insulating Materials | 2021, 54(1): 7-12
• Material Research •
Effect of 2,6-Di-tert-butyl-p-cresol on Insulating Properties of Vegetable Insulating Oil for Transformers
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Tao ZHANG1, Jianwei HAN1, 2, Wenyan YANG2, Shuo WANG1, Zhengbo DU1, Ning FENG3, Chan CHEN3
Affiliations
  • 1College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China
  • 2Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University, Yichang 443002, China
  • 3Xiaogan Electric Power Supply Company of State Grid Hubei Electric Co., Lt, Xiaogan 432100, China
Published: 2021-01-20 doi: 10.16790/j.cnki.1009-9239.im.2021.01.002
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Vegetable insulating oil is easy to oxidate during operation and it will affect the service life of transformer. In this study, 2,6-di-tert-butyl-p-cresol (BHT) was chosen as antioxidant, and the characteristic parameters of the vegetable insulating oil were compared by the ageing tests. The effect of BHT antioxidant was analyzed by measuring the acid value, peroxide value, and moisture content. The effect of BTH antioxidant on the insulating properties was studied by detecting the dielectric loss factor, breakdown voltage, and FDS curves. The results show that BHT antioxidant can effectively improve the dielectric constant of vegetable insulating oil. Through the molecular formula analysis on the reaction mechanism between BHT reagent and unsaturated oil in natural ester insulating oil, the oxidation resistance process of BHT in natural ester insulating oil can be reflected more intuitively. When the addition amount of BHT is 0.20%, it has a better effect on improving the insulation performance of vegetable insulating oil.

vegetable insulating oil  /  insulation performance  /  BHT  /  chemical characteristic  /  electrical characteristics  /  FDS
Tao ZHANG, Jianwei HAN, Wenyan YANG, Shuo WANG, Zhengbo DU, Ning FENG, Chan CHEN. Effect of 2,6-Di-tert-butyl-p-cresol on Insulating Properties of Vegetable Insulating Oil for Transformers[J]. Insulating Materials, 2021 , 54 (1) : 7 -12 . DOI: 10.16790/j.cnki.1009-9239.im.2021.01.002
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doi: 10.16790/j.cnki.1009-9239.im.2021.01.002
  • Receive Date：2020-03-16
  • Online Date：2026-01-26
  • Published：2021-01-20
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History
  • Received：2020-03-16
  • Revised：2020-06-26
Funding
Affiliations
    1College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China
    2Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University, Yichang 443002, China
    3Xiaogan Electric Power Supply Company of State Grid Hubei Electric Co., Lt, Xiaogan 432100, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.01.002
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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
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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