环氧树脂绝缘电树枝劣化研究进展

doi:10.19595/j.cnki.1000-6753.tces.210206

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Abstract Due to its excellent heat resistance, mechanical, electrical insulating and processing properties, the epoxy resin is widely used in the fields of injection, impregnation and packaging insulation for electrical equipment. According to the domestic and foreign references, the insulation breakdown caused by electrical tree in epoxy resin insulation is discussed. The initiation mechanism is elaborated, including space charge accumulation and migration, local electric field formation, ultraviolet radiation, and electro-mechanical stress chain breaking theory, so as to understand the electrical tree initiation process. Combined with the application conditions of electrical equipment, the influence of superimposed electric field, temperature gradient field, mechanical stress field and humid environment on the electrical tree deterioration is introduced, and the relationship of electrical tree growth morphology and charge transport behavior under the multiple physical fields is summarized. From the perspective of improving the epoxy resin insulation performance, the methods for inhibiting the electrical tree are introduced from the aspects of insulation process control, inorganic doping, and self-healing materials. Based on the molecular configuration, micro-structure, and macroscopic phenomena, the inhibition mechanism is summarized. According to the research progress, relevant suggestions on electrical tree experimental exploration and suppression methods are put forward.

Key words： Epoxy resin electrical tree superimposed electric field temperature gradient mechanical stress insulation breakdown suppression method

Received: 10 February 2021

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TM852

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	Articles by authors
	Du Boxue
	Zhang Ying
	Kong Xiaoxiao
	Li Jin

Cite this article:

Du Boxue,Zhang Ying,Kong Xiaoxiao等. Research Progress on Electrical Tree in Epoxy Resin Insulation[J]. Transactions of China Electrotechnical Society, 2022, 37(5): 1128-1135.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210206 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I5/1128

[1] 李进, 王雨帆, 梁虎成, 等. 高压直流GIL盆式绝缘子非线性电导参数优化[J]. 中国电机工程学报, 2021, 41(1): 166-173.
Li Jin, Wang Yufan, Liang Hucheng, et al.Parameter optimization of nonlinear conductivity spacer for HVDC GIL[J]. Proceedings of the CSEE, 2021, 41(1): 166-173.
[2] 袁瑞君, 李涵, 郑哲宇, 等. 气体绝缘输电线路用C₃F₇CN/CO₂混合气体与环氧树脂相容性试验[J].电工技术学报, 2020, 35(1): 70-79.
Yuan Ruijun, Li Han, Zheng Zheyu, et al.Experiment on the compatibility between C₃FN/CO₂ gas mixture and epoxy resin used in gas insulated transmission line[J]. Transactions of China Electrotechnical Society, 2020, 35(1): 70-79.
[3] 张苗苗. 脉冲电压与低温环境下环氧树脂电树枝生长特性研究[D]. 天津: 天津大学, 2016.
[4] 苏金刚. 基于高压直流电缆附件的 EPDM 电树枝生长机理与抑制方法研究[D]. 天津: 天津大学, 2019.
[5] Yoshimura N, Kumagai S, Du Boxue.Research in Japan on the tracking phenomenon of electrical insulating materials[J]. IEEE Electrical Insulation Magazine, 1997, 13(5): 8-19.
[6] Du Boxue, Xue Jushao, Zhang Miamiao.Effect of pulse duration on electrical tree and breakdown process of epoxy resin in LN2[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 2017, 24(1): 359-366.
[7] 刘通, 李洪涛, 刘建军, 等. 一起GIS盆式绝缘子应力开裂导致绝缘击穿故障[J]. 高压电器, 2020, 56(2): 240-245.
Liu Tong, Li Hongtao, Liu Jianjun, et al.Insulation breakdown fault caused by stress crack of GIS basin-type insulator[J]. High Voltage Apparatus, 2020, 56(2): 240-245.
[8] 黎卫国, 张长虹, 杨旭, 等. 500kV GIL三支柱绝缘子炸裂故障分析与防范措施[J]. 电瓷避雷器, 2019(3): 221-227.
Li Weiguo, Zhang Changhong, Yang Xu, et al.Analysis and protecting measures on burst fault of three-pillar insulator of 500 kV GIL[J]. Insulators and Surge Arresters, 2019(3): 221-227.
[9] Du Boxue, Ma T T, Su Jingang, et al.Effects of temperature gradient on electrical tree growth and partial discharge in silicone rubber under AC voltage[J]. IEEE Access, 2020, 8: 54009-54018.
[10] Su Jingang, Du Boxue, Li Jin, et al.Electrical tree degradation in high-voltage cable insulation: progress and challenges[J]. High Voltage, 2020, 5(4): 353-364.
[11] Zhu Lewei, Du Boxue, Su Jingang, et al.Electrical treeing initiation and breakdown phenomenon in polypropylene under DC and pulse combined voltages[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2019, 26(1): 202-210.
[12] Wang Xia, Liu Quanyu, Zhang Xiaoyang, et al.Study on space charge behavior of XLPE after long-term aging under temperature gradient and DC stress[C]//IEEE International Conference on Condition Monitoring & Diagnosis, Xi'an, China, 2016: 741-744.
[13] Cdonald H M, Morsch S, Rowland S M.Chemical analysis of tree growth in epoxy resin using AFM-IR spectroscopy[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2020, 27(3): 773-781.
[14] Ieda M. Dielectric breakdown process of polymers[J]. IEEE Transactions on Electrical Insulation, 1980, EI-15(3): 206-224.
[15] Du Boxue, Su Jingang, Han Tao.Effects of mechanical stretching on electrical treeing characteristics in EPDM[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 2018, 25(1): 84-93.
[16] 薛巨邵. 环氧树脂电树枝生长特性与温度影响研究[D]. 天津: 天津大学, 2018.
[17] Du Boxue, Tian Meng, Su Jingang, et al.Electrical tree growth characteristics in epoxy resin with harmonic superimposed dc voltage[J]. IEEE Access, 2019(9): 47273-47281.
[18] 田猛. 直流复合场下环氧树脂内电树枝生长特性研究[D]. 天津: 天津大学, 2019.
[19] Du Boxue, Tian Meng, Su Jingang, et al.Temperature gradient dependence on electrical tree in epoxy resin with harmonic superimposed DC voltage[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2020, 27(1): 270-278.
[20] 汪建成, 谢文刚, 宫瑞磊, 等. 550kV GIL三支柱绝缘子设计[J]. 高压电器, 2018, 54(5): 114-118.
Wang Jiancheng, Xie Wengang, Gong Ruilei, et al.Design of 550 kV GIL three post insulator[J]. High Voltage Apparatus, 2018, 54(5): 114-118.
[21] Du Boxue, Su Jingang, Li Jin, et al.Effects of mechanical stress on treeing growth characteristics in HTV silicone rubber[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2017, 24(3): 1547-1556.
[22] Li Yichao, Li Renfu, Huang Lai, et al.Effect of hygrothermal aging on the damage characteristics of carbon woven fabric/epoxy laminates subjected to simulated lightning strike[J]. Materials and Design, 2016, 99: 477-489.
[23] Chen Xiaoli, Shi Hongwei, Song Xiaoguang, et al.Casting transformers APG manufacturing technology[J]. Advanced Materials Research, 2014, 1002: 65-68.
[24] 李进, 王雨帆, 杜伯学, 等. 高压电工装备用环氧树脂绝缘材料改性研究进展[J]. 广东电力, 2019, 32(12): 3-11.
Li Jin, Wang Yufan, Du Boxue, et al.Modification research progress of epoxy resin insulation materials for high voltage electrical apparatus[J]. Guangdong Electric Power, 2019, 32(12): 3-11.
[25] 杨国清, 黎洋, 王德意, 等. 超支化聚酯改性纳米SiO₂/环氧树脂的介电特性[J]. 电工技术学报, 2019, 34(5): 1106-1115.
Yang Guoqing, Li Yang, Wang Deyi, et al.Growth characteristics of electric tree for nano-SiO₂/epoxy resin modified by hyperbranched polyester[J]. Transactions of China Electrotechnical Society, 2019, 34(5): 1106-1115.
[26] 王旗, 李喆, 尹毅, 等. 微/纳米氧化铝/环氧树脂复合材料抑制电树枝生长能力的研究[J]. 电工技术学报, 2015, 30(6): 255-260.
Wang Qi, Li Zhe, Yin Yi, et al.The effect of micro and nano alumina on the ability of impedance on the electrical tree of epoxy resin[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 255-260.
[27] Yan W, Phung B T, Han Z J, et al.Plasma polymer-coated on nanoparticles to improve dielectric and electrical insulation properties of nanocomposites[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21(2): 548-555
[28] 杨国清, 张埼炜, 王德意, 等. ZnO/环氧树脂复合材料的耐电树枝能力[J]. 高电压技术, 2019, 45(1): 91-96.
Yang Guoqing, Zhang Qiwei, Wang Deyi, et al.Ability of impedance on the electrical tree of ZnO/epoxy composites[J]. High Voltage Engineering, 2019, 45(1): 91-96.
[29] 闫双双, 李媛媛, 田慕琴, 等. 不同填料浓度下环氧树脂基纳米二氧化硅复合材料中电树枝生长特性[J]. 高电压技术, 2019, 45(12): 3860-3868.
Yan Shuangshuang, Li Yuanyuan, Tian Muqin, et al.Growth characteristics of electrical trees in epoxy resin-based Nano-SiO₂ composites with different filler concentrations[J]. High Voltage Engineering, 2019, 45(12): 3860-3868.
[30] Singha S, Thomas M J.Dielectric properties of epoxy nano-composites[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(1): 12-23.
[31] 王旗, 李喆, 尹毅. 微,纳米无机颗粒/环氧树脂复合材料击穿强度性能[J]. 电工技术学报, 2014, 29(12): 230-235.
Wang Qi, Li Zhe, Yin Yi, et al.The effect of micro and nano alumina on the ability of impedance on the electrical tree of epoxy resin[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 230-235.
[32] White S R, Sottos N, Geubelle P, et al.Autonomic healing of polymer composites[J]. Nature, 2001, 409(6822): 794.
[33] Lesaint C, Risinggard V, Holto J, et al.Self-healing high voltage electrical insulation materials[C]//IEEE Electrical Insulation Conference, IEEE, Montpellier, France, 2014: 241-244.
[34] Bian Wancong,Wang Wenxuan,Yang Ying.A self-healing and electrical-tree-inhibiting epoxy composite with hydrogen-bonds and SiO₂ particles[J]. Polymers, 2017, 9(9): 431.