水分对干式套管环氧浸渍纸材料介电特性的影响

doi:10.19595/j.cnki.1000-6753.tces.210579

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (2404 KB) HTML
输出: BibTeX | EndNote (RIS)

摘要干式套管电容芯子主绝缘为由皱纹纸经环氧树脂浇注而成的环氧浸渍纸。由于环氧树脂与皱纹纸分子链存在亲水性基团而易吸收水分,为了明确水分在两种材料中扩散特性及对其介电性能的影响,该文制备了环氧树脂和环氧浸渍纸绝缘样品,开展了水分扩散实验以及不同含水量下的介电特性测试实验。结果表明：纯环氧树脂中的水分扩散符合Fick扩散模型,而水分在环氧浸渍纸中的扩散特性可用Langumir模型来解释;对于纯环氧树脂,水分含量的减少仅导致介电谱曲线低频段（1mHz~1Hz）降低,对高频段（1Hz~5kHz）则基本无影响,对于环氧浸渍纸则表现为介电谱曲线损耗峰向低频方向移动;进一步地,论文提取两种绝缘介电谱曲线的特征参量,提出干式套管绝缘受潮状态评估的新方法。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	丁宁
	穆海宝
	梁兆杰
	张大宁
	张冠军

关键词 ：干式套管, 环氧树脂, 环氧浸渍纸, 水分扩散, 介电特性

Abstract：The main insulation of the dry-type bushing capacitor core is epoxy impregnated paper, which is consists of crepe paper and epoxy resin. It is easy to absorb waterdue to the presence of hydrophilic groups in the molecular chains of epoxy resin and crepe paper. In order to clarify the diffusion characteristics of water in the two materials and its influence on their dielectric properties, the insulation samples of epoxy resin and epoxy impregnated paper were prepared, and the water diffusion experiments and dielectric properties tests under different water contents were carried out.The results show that the water diffusion in pure epoxy resin conforms to the Fick diffusion model, while the diffusion characteristics of moisture in epoxy impregnated paper can be explained by the Langumir model. For pure epoxy resin, the reduction of water content only leads to a decrease in the low frequency band (1mHz~1Hz), and has basically no effect on the high frequency band (1Hz~5kHz),while the loss peak of the dielectric response curve moves to the low frequency bandfor epoxyimpregnated paper.This paper extracts the characteristic parameters of dielectric response curves, and proposes a new method for the damp state evaluation of dry bushing insulation.

Key words： Dry-type bushing epoxy resin epoxy resin impregnated paper water diffusion dielectric properties

收稿日期: 2021-04-22

PACS:

TM855

基金资助:陕西省重点研发计划（2022GY-269）西安市碑林区科技计划（GX2124）资助项目

通讯作者: 穆海宝男,1982年生,副教授,博士生导师,研究方向为电力设备状态诊断及低温等离子体应用。E-mail：haibaomu@mail.xjtu.edu.cn

作者简介: 丁宁男,1996年生,硕士研究生,研究方向为电力设备状态诊断。E-mail：dg3119304360@stu.xjtu.edu.cn

引用本文:

丁宁, 穆海宝, 梁兆杰, 张大宁, 张冠军. 水分对干式套管环氧浸渍纸材料介电特性的影响[J]. 电工技术学报, 2022, 37(11): 2716-2724. Ding Ning, Mu Haibao, Liang Zhaojie, Zhang Daning, Zhang Guanjun. Effect of Moisture on the Dielectric Properties of Epoxy Resin Impregnated Paper for Dry-Type Bushing. Transactions of China Electrotechnical Society, 2022, 37(11): 2716-2724.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.210579 https://dgjsxb.ces-transaction.com/CN/Y2022/V37/I11/2716

[1] 王世阁. 运行维护变压器套管故障状况及其分析[J]. 变压器, 2002, 39(7): 35-40.
Wang Shige.Fault situation of transformer bushing and its analysis[J]. Transformer, 2002, 39(7): 35-40.
[2] 张大宁, 刘孝为, 詹江杨, 等. 变压器油纸绝缘频域介电谱的虚部分析[J]. 电工技术学报, 2019, 34(4): 847-854.
Zhang Daning, Liu Xiaowei, Zhan Jiangyang, et al.Analysis of imaginary part of frequency domain spectroscopy for oil-paper insulation transformer[J]. Transactions of China Electrotechnical Society, 2019, 34(4): 847-854.
[3] 邓映鑫, 杨丽君, 燕飞东, 等. 受潮油纸绝缘的非线性介电响应特性及H-W模型在时-频转换中的应用[J]. 电工技术学报, 2020, 35(21): 4610-4619.
Deng Yingxin, Yang Lijun, Yan Feidong, et al.Nonlinear dielectric response characteristics of damp oil-impregnated pressboard insulation and application of H-W model in time-frequency conversion[J]. Transactions of China Electrotechnical Society, 2020, 35(21): 4610-4619.
[4] 邓威, 毛娟. 110kV环氧浸渍干式套管绝缘劣化分析[J]. 电力安全技术, 2016, 18(8): 54-57.
Deng Wei, Mao Juan.Analysis of insulation deterioration of 110kV epoxy impregnated dry bushing[J]. Electric Safety Technology, 2016, 18(8): 54-57.
[5] 申巍, 柯春俊, 王红斌, 等. 直流高压干式套管的多参量诊断[J]. 高电压技术, 2012, 38(3): 616-622.
Shen wei, Ke Chunjun, Wang Hongbin, et al. Multi-parameter diagnosis of HVDC Bushing[J]. High Voltage Engineering, 2012, 38(3): 616-622.
[6] 宁鑫, 彭宗仁, 冯骅, 等. 特高压直流干式套管用环氧及环氧/皱纹纸复合材料介电特性研究[J]. 中国电机工程学报, 2015, 35(4): 995-1001.
Ning Xin, Peng Zongren, Feng Hua, et al.Dielectric properties of epoxy resin and epoxy/crepe paper composites used in the ultra high voltage direct current dry-type bushing[J]. Proceedings of the CSEE, 2015, 35(4): 995-1001.
[7] Ning Xin, Feng Hua, Zhang Hongliang, et al.Dielectric properties of multi-layer epoxy resin impregnated crepe paper composites[J]. IEEE transactions on dielectrics and electrical insulation, 2015, 22(1):161-168.
[8] Wang Qingyu, Peng Zhongren, Dodd S J, et al.Dielectric response and space charge in epoxy impregnated paper composite laminates[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2019, 26(5): 1532-1540.
[9] 张施令, 彭宗仁. ±800 kV换流变压器阀侧套管绝缘结构设计分析[J]. 高电压技术, 2019, 45(7): 2257-2266.
Zhang Shiling, Peng Zongren.Design and analysis of insulation structure of ±800 kV valve side converter transformer bushing[J]. High Voltage Engineering, 2019, 45(7): 2257-2266.
[10] 曹雯, 宋倩文, 申巍, 等. 环氧/纸复合材料直流耐压寿命模型的估计方法[J]. 电工技术学报, 2019, 34(18): 3751-3758.
Cao Wen, Song Qianwen, Shen Wei, et al.Estimation methods of DC withstand voltage lifetime model for epoxy/paper composites[J]. Transactions of China Electrotechnical Society, 2019, 34(18): 3751-3758.
[11] Zou Chen, Fothergill J C, Rowe S W.The effect of water absorption on the dielectric properties of epoxy nanocomposites[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(1):106-117.
[12] Zhang Daning, Yun Hao, Zhan Jiangyang, et al.Insulation condition diagnosis of oil-immersed paper insulation based on non-linear frequency-domain dielectric response[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2018, 25(5): 1980-1988.
[13] 谢伟, 杨征, 程显, 等. 环氧树脂材料热氧老化特性研究[J]. 电工技术学报, 2020, 35(20): 4398-4404.
Xie Wei, Yang Zheng, Cheng Xian, et al.Study on thermo-oxygen aging characteristics of epoxy resin material[J]. Transactions of China Electrotechnical Society, 2020, 35(20): 4398-4404.
[14] 杨峰, 唐超, 周渠, 等. 基于等效电路的油纸绝缘系统受潮状态分析[J]. 电工技术学报, 2020, 35(21): 4586-4596.
Yang Feng, Tang Chao, Zhou Qu, et al.Analyzing the moisture state of oil-paper insulation system using an equivalent circuital model[J]. Transactions of China Electrotechnical Society, 2020, 35(21): 4586-4596.
[15] 张大宁, 白帆, 牛朝滨, 等. 不同受潮类型下油纸绝缘套管的频域介电谱特性[J]. 中国电机工程学报, 2018, 38(16): 4942-4950.
Zhang Daning, Bai Fan, Niu Chaobin, et al.Frequency domain spectroscopy characteristics of oil-paper insulated bushings under different damp types[J]. Proceedings of the CSEE, 2018, 38(16): 4942-4950.
[16] 戴佺民, 齐波, 李成榕, 等. 油浸纸套管尾部受潮故障模拟及早期特征[J]. 电工技术学报, 2018, 33(11): 2613-2619.
Dai Quanmin, Qi Bo, Li Chengrong, et al.Fault simulation and early characteristics of tail moisture in oil-immigrated paper bushing[J]. Transactions of China Electrotechnical Society, 2018, 33(11): 2613-2619.
[17] 高岩峰, 王家福, 阎志鹏, 等. 水在高温硫化硅橡胶中的扩散特性研究[J]. 中国电机工程学报, 2015, 35(1): 231-239.
Gao Yanfeng, Wang Jiafu, Yan Zhipeng, et al.Investigation on water diffusion property Into HTV silicone rubber[J]. Proceedings of the CSEE, 2015, 35(1): 231-239.
[18] Aguilar C G, Reboredo M, Castro M.Influence of humidity on the dielectric behaviour of BaTiO₃-epoxy composites[J]. Journal of Composite Materials, 2020, 54(13):1639-1646.
[19] 刘鹏, 金海云, 石惠承, 等. 特高压直流套管用环氧树脂/皱纹纸复合绝缘体系介电性能的研究[J]. 高压电器, 2009, 45(5): 6-8.
Liu Peng, Jin Haiyun, Shi Huicheng, et al.Investigation on dielectric properties of epoxy/crepe paper composites for ultra-high voltage DC bushing[J]. High Voltage Apparatus, 2009, 45(5): 6-8.
[20] Carter H G, Kibler K G.Langmuir-type model for anomalous moisture diffusion in composite resins[J]. Journal of Composite Materials, 1978, 12(2): 118-131.
[21] 袁之康. 高湿环境下复合绝缘子材料劣化特性及机理[D]. 北京: 华北电力大学(北京), 2019.
[22] 吴广宁, 夏国强, 粟茂, 等. 基于频域介电谱和补偿因子的油纸绝缘水分含量和老化程度评估方法[J]. 高电压技术, 2019, 45(3): 691-700.
Wu Guangning, Xia Guoqiang, Su Mao, et al.Evaluation method for moisture content and aging degree of transformer oil-paper insulation based on frequency dielectric spectroscopy and compensation factor[J]. High Voltage Engineering, 2019, 45(3): 691-700.
[23] 郭文敏, 王婷婷, 李忠华. 非线性复合结构的界面极化特性[J]. 高电压技术, 2017, 43(2): 391-397.
Guo Wenmin, Wang Tingting, Li Zhonghua.Interface polarization characteristic of nonlinear composite structure[J]. High Voltage Engineering, 2017, 43(2): 391-397.