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Study on Insulating Properties of Epoxy Resin Material for UHV Power Equipment
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Shiling ZHANG1, Xin NING2, Zongren PENG3
Insulating Materials | 2021, 54(1) : 60 - 65
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Insulating Materials | 2021, 54(1): 60-65
• Insulation Technology •
Study on Insulating Properties of Epoxy Resin Material for UHV Power Equipment
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Shiling ZHANG1, Xin NING2, Zongren PENG3
Affiliations
  • 1Electric Power Research Institute of State Grid Chongqing Electric Power Company, Chongqing 401123, China
  • 2Electric Power Research Institute of State Grid Sichuan Electric Power Company, Chengdu 610072, China
  • 3State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
Published: 2021-01-20 doi: 10.16790/j.cnki.1009-9239.im.2021.01.011
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The dielectric spectrum experimental data of epoxy resin material for ultra high voltage (UHV) power equipment was fitted by Havriliak Negami (HN) equation, and the HN mathematical model parameters of epoxy resin material were established. In the frequency range of 10-1-106 Hz and temperature range of -40-200℃, the frequency spectra and temperature spectra of epoxy resin were measured using broadband dielectric spectrometer. Then the experimental data was fitted by the improved HN equation, and the characteristic parameters of dielectric spectrum mathematical model were obtained. The results show that the uniqueness and accuracy of the fitting parameters can be guaranteed combining with genetic algorithm and least square method. The characteristic parameters of dielectric spectra, including direct current conductivity and relaxation polarization time, have significant temperature dependence, which basically accords with Arrhenius formula.

ultra high voltage  /  epoxy resin  /  dielectric spectrum  /  Havriliak-Negami (HN) equation  /  curve fitting
Shiling ZHANG, Xin NING, Zongren PENG. Study on Insulating Properties of Epoxy Resin Material for UHV Power Equipment[J]. Insulating Materials, 2021 , 54 (1) : 60 -65 . DOI: 10.16790/j.cnki.1009-9239.im.2021.01.011
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doi: 10.16790/j.cnki.1009-9239.im.2021.01.011
  • Receive Date：2020-02-13
  • Online Date：2026-01-26
  • Published：2021-01-20
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History
  • Received：2020-02-13
  • Revised：2020-03-31
Affiliations
    1Electric Power Research Institute of State Grid Chongqing Electric Power Company, Chongqing 401123, China
    2Electric Power Research Institute of State Grid Sichuan Electric Power Company, Chengdu 610072, China
    3State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.01.011
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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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