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Effect of TiO2 nanoparticles surface modification on impulse breakdown property of transformer oil
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Binzhong JIA1, Xiayuan YANG1, Yilong LI1, Qian SUN1, Yang GE2, Meng HUANG2, Bo QI2, Yuzhen LÜ1
Insulating Materials | 2024, 57(3) : 23 - 28
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Insulating Materials | 2024, 57(3): 23-28
• Material Research •
Effect of TiO2 nanoparticles surface modification on impulse breakdown property of transformer oil
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Binzhong JIA1, Xiayuan YANG1, Yilong LI1, Qian SUN1, Yang GE2, Meng HUANG2, Bo QI2, Yuzhen LÜ1
Affiliations
  • 1School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
  • 2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Published: 2024-03-20 doi: 10.16790/j.cnki.1009-9239.im.2024.03.003
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TiO2 nanoparticles surface modified with acetic acid, hexanoic acid, and oleic acid were synthesized via liquid-phase method and used to prepared modified transformer oils. The morphology and surface modification state of the nanoparticles were measured by transmission electron microscope (TEM) and Fourier infrared spectroscopy (FTIR). The positive impulse breakdown voltage and streamer development pattern of the transformer oil before and after modification were tested, and the effect of nanoparticle surface modification on the breakdown performance of transformer oil was studied. The results show that the surface modified nanoparticles greatly improve the positive impulse breakdown voltage of transformer oil, and significantly prolong the breakdown time. Among them, the acetic acid modified nanoparticles have the best modification effect, which increases the impulse breakdown voltage from 84.73 kV of pure oil to 116.42 kV, an increase of 37.4%, and the breakdown time is extended to 1.86 times that of pure oil. The surface modification of nanoparticles greatly increases the shallow trap density in the oil, changes the streamer propagation pattern, significantly inhibits the development speed of streamer, and thus improves the impulse breakdown properties of the transformer oil.

nanoparticles  /  surface modification  /  impulse breakdown property  /  trap
Binzhong JIA, Xiayuan YANG, Yilong LI, Qian SUN, Yang GE, Meng HUANG, Bo QI, Yuzhen LÜ. Effect of TiO2 nanoparticles surface modification on impulse breakdown property of transformer oil[J]. Insulating Materials, 2024 , 57 (3) : 23 -28 . DOI: 10.16790/j.cnki.1009-9239.im.2024.03.003
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doi: 10.16790/j.cnki.1009-9239.im.2024.03.003
  • Receive Date：2023-02-03
  • Online Date：2025-12-22
  • Published：2024-03-20
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  • Received：2023-02-03
  • Revised：2023-03-17
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Affiliations
    1School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2024.03.003
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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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