[1]曾磊磊,张 宇,童 超,等.复合绝缘子HTV硅橡胶伞套的湿热老化特性研究[J].电瓷避雷器,2020,(01):214-221.[doi:10.16188/j.isa.1003-8337.2020.01.036]
 ZENG Leilei,ZHANG Yu,TONG Chao,et al.Study on Hygrothermal Aging Characteristics of HTV Silicone Rubber Sheds of Composite Insulators[J].,2020,(01):214-221.[doi:10.16188/j.isa.1003-8337.2020.01.036]
点击复制

复合绝缘子HTV硅橡胶伞套的湿热老化特性研究()
分享到:

《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年01期
页码:
214-221
栏目:
绝缘子
出版日期:
2020-02-20

文章信息/Info

Title:
Study on Hygrothermal Aging Characteristics of HTV Silicone Rubber Sheds of Composite Insulators
作者:
曾磊磊1 张 宇1 童 超1 缪雪梅1 曾 鑫2 马 亮1 周龙武1 邹 阳1 晏年平1 邓志斌3
(1.国网江西省电力有限公司电力科学研究院, 南昌 330096; 2.国网浙江省电力有限公司湖州供电公司, 浙江 湖州 313000; 3.国网江西省电力有限公司, 南昌 330077)
Author(s):
ZENG Leilei1 ZHANG Yu1 TONG Chao1 MIAO Xuemei1 ZENG Xin2 MA Liang1 ZHOU Longwu1 ZOU Yang1 YAN Nianping1 DENG Zhibin3
(1.Electric Power Research Institute of State Grid Jiangxi Electric Power Company, Nanchang 330096,China; 2.State Grid Zhejiang Huzhou Power Supply Company, Huzhou 313000, China; 3.State Grid Jiangxi Electric Power Company, Nanchang 330077, China)
关键词:
复合绝缘子 HTV硅橡胶 微观分析 湿热老化特性
Keywords:
composite insulator HTV silicone rubber microscopic analysis hygrothermal aging characteristics
DOI:
10.16188/j.isa.1003-8337.2020.01.036
摘要:
由于长期运行在湿热的气候环境下,近年来我国南方地区复合绝缘子异常发热、击穿断裂等故障时有发生,严重威胁了电网的安全稳定运行。为了研究复合绝缘子硅橡胶伞套的湿热老化特性,首先对高温硫化(High Temperature Vulcanization,HTV)硅橡胶进行湿热老化实验,然后利用扫描电镜、红外光谱、热重分析、介电谱和热刺激电流测试等分析手段对湿热老化和运行老化样品进行微观分析,结果表明:湿热的联合作用能够显著加速HTV硅橡胶的老化进程,随着湿热老化时间的增加,样品的表面微观形貌、化学基团、热解性能、介电性能和陷阱性能均逐渐劣化,其中,硅氧主链与硅碳侧链红外吸收峰高、热解剩余质量、介电参数和陷阱参数可作为硅橡胶的老化特征参量,评估其老化状态; HTV硅橡胶在湿热老化过程中主要发生PDMS分解,湿热老化26天样品的PDMS的劣化程度与运行老化10年的伞裙接近; 烘干后样品的介电参数显著降低,表明水分入侵对其介电性能具有重要影响,湿热老化充分考虑了这一因素,相比于其他老化方式更加全面合理。
Abstract:
Due to long-term operation in hot and humid climate, in recent years, the abnormal heating faults and breakdown faults of composite insulators frequently occur in southern China, which seriously threatens the safe and stable operation of power grid. In order to study the hygrothermal aging characteristics of silicone rubber umbrella sleeve for composite insulators, the hygrothermal aging experiments were carried out on high temperature vulcanization(HTV)silicone rubber, and then the samples of hygrothermal aging and operation aging were analyzed by means of scanning electron microscopy, infrared spectroscopy, thermo gravimetric analysis, dielectric spectroscopy and thermal stimulation current test. The hot and humid combined effect can significantly accelerate the aging process of HTV silicone rubber. With the increase of the hygrothermal aging time, the surface morphology, chemical groups, pyrolysis properties, dielectric properties and trapping properties of the samples are gradually deteriorated. Among them, the infrared absorption peak height, pyrolysis residual mass, dielectric parameters and trapping parameters of silica main chain and silicon-carbon side chain can be used as the aging characteristic parameters of silicone rubber. HTV silicone rubber mainly decomposes PDMS in the process of hygrothermal aging, and the degradation degree of PDMS in 26 days of wet-heat aging is close to that of umbrella skirt which has been aged for 10 years. After drying, the dielectric parameters of the samples decrease significantly, which indicate that water intrusion has an important influence on their dielectric properties. Hygrothermal aging method has fully considered this factor, which is more comprehensive and reasonable than other aging methods.

参考文献/References:

[1] 张冠军,赵林,周润东,申文伟,梁曦东. 硅橡胶复合绝缘子老化表征评估研究的现状与进展[J]. 高压电器,2016, 52(4):1-15. ZHANG Guanjun,ZHAO Lin, ZHOU Rundong, SHEN Wenwei, LIANG Xidong. Review on aging characterization and evaluation of Silicon rubber composite insulator[J]. High Voltage Apparatus, 2016, 52(4): 1-15.
[2] 孙文健,李亚伟,刘轩东,等. 高海拔地区紫外线辐射对复合绝缘子表面憎水性的影响机制[J]. 电网技术,2018, 42(03):996-1002. SUN Wenjian, LI Yawei, LIU Xuandong, DENG. Influence mechanism of UV on surface hydrophobicity of composite insulators in high altitude areas[J]. Power System Technology, 2018, 42(03): 996-1002.
[3] 梁曦东,高岩峰,王家福,李少华. 中国硅橡胶复合绝缘子快速发展历程[J]. 高电压技术,2016, 42(9):2888-2896. LIANG Xidong, GAO Yanfeng, WANG Jiafu, LI Shaohua. Rapid development of silicone rubber composite insulator in China[J]. High Voltage Engineering, 2016, 42(9): 2888-2896.
[4] 王黎明,张中浩,成立,张福增,梅红伟. 复合绝缘子护套受潮对端部异常温升的影响[J]. 电网技术,2016(2):608-613. WANG Liming, ZHANG Zhonghao, CHENG Li, ZHANG Fuzeng, MEI Hongwei. Cleaning effect of rainfall on surface contamination of insulators[J]. Power System Technology, 2016(2): 608-613.
[5] CHENG L, WANG L, ZHANG Z, et al. Mechanism of fracture related heating for 500 kV composite insulators in highly humid areas[J]. International Transactions on Electrical Energy Systems, 2016, 26(3): 641-654.
[6] TU Youping, GONG Bo, WANG Cong, XU Kangtai, XU Zhuoand wang, shaohe, ZHANG Fuzeng, LI Ruihai. Effect of moisture on temperature rise of composite insulators operating in power system[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2015, 22(4): 2207-2213.
[7] TU Youping, GONG Bo, YUAN Zhikang, WANG Cong, XU Zhuo, LI Ruihai, ZHANG Fuzeng. Moisture induced local heating of overhead line composite insulators[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2017, 24(1): 483-489.
[8] LUTZ B, CHENG L, GUAN Z, WANG L, ZHANG F. Analysis of a fractured 500 kV composite insulator - identification of aging mechanisms and their causes[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2012, 19(5): 1723-1731.
[9] 石倩. 不同湿度条件下HTV硅橡胶材料的紫外老化特性研究[D]. 北京:华北电力大学,2014.
[10] 甘永叶. 复合绝缘子运行发热及热老化机理研究[D]. 广州:华南理工大学,2017.
[11] 董平平,杨茹,陈永明,等. 高温硫化硅橡胶电晕加速老化试验参数研究[J]. 高压电器, 2019, 55(01):143-148. DONG Pingping,YANG Lu,CHEN Yongming,et al. Study on corona accelerated aging test parameters of high temperature vulcanized silicone rubber[J]. High Voltage Apparatus,2019,55(01):143-148.
[12] 周远翔,张云霄,张旭,刘睿,王明渊,高胜友. 热老化时间对硅橡胶电树枝起始特性的影响[J]. 高电压技术,2014, 40(4):979-986. ZHOU Yuanxiang, ZHANG Yunxiao, ZHANG Xu, LIU Rui, WANG Mingyuan, GAO Shengyou. Influence of thermal aging time on electrical tree initiation of silicone rubber[J]. High Voltage Engineering, 2014, 40(4): 979-986.
[13] ZHOU Yuanxiang, ZHANG Yunxiao, ZHANG Ling, GUO Dawei and Zhang, Xu, WANG Mingyuan. Electrical tree initiation of silicone rubber after thermal aging[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(2): 748-756.
[14] 谢从珍,刘珊,袁超,胡长猛,李立浧. 氧化铁对复合绝缘子用高温硫化硅橡胶性能的影响[J]. 高电压技术,2014, 40(12):3674-3679. XIE Congzhen, LIU Shan, YUAN Chao, HU Changmeng, LI Liying. Influence of Fe2O3 on properties of high-temperature vulcanized silicone rubber for composite insulators[J]. High Voltage Engineering, 2014, 40(12): 3674-3679.
[15] 蒋沙沙. 硅橡胶加速老化及失效机理研究[D]. 哈尔滨:哈尔滨工业大学,2013.
[16] 周锡球,吕伟桃,王斌,邓海辉,吴轲,曾宪文,叶伟标. 不同老化因素对互感器伞套老化影响的研究[J]. 绝缘材料,2014, 47(3):70-74. ZHOU Xiqiu, LV Weitao, WANG Bin, DENG Haihui, WU Ke, ZENG Xianwen, YE Weibiao. Effect of various aging factors on the aging characteristic of umbrella cover of instrument transformer[J]. Insulating Materials, 2014, 47(3): 70-74.
[17] NARUSE T, HATTORI T, YAMAGUCHI Y. Thermal degradation of chlorosulfonated polyethylene rubber and ethylene propylene diameter polymer[J]. Materials and Design, 2012, 42(12): 147–155.
[18] PATEL M, SKINNER A R. Thermal ageing studies on room-temperature vulcanised polysiloxane rubbers[J]. Polymer Degradation and Stability, 2001, 73(3): 399-402.
[19] 邓桃,杨滴,陶文彪,周凯,张学军,谷琛. 复合绝缘子粉化伞裙的微观结构与憎水性的关联研究[J]. 电网技术,2016, 40(1):328-334. DENG Tao, YANG Di, TAO Wenbiao, ZHOU Kai, ZHANG Xuejun, GU Chen. The relationship between microstructure and hydrophobicity of pulverized composite insulator sheds[J]. Power System Technology, 2016, 40(1): 328-334.
[20] 汪佛池,律方成,杨升杰,等. 基于FTIR 110 kV复合绝缘子硅橡胶伞裙老化性能分析[J]. 电工技术学报,2015, 30(8):297-302. WANG Fochi, LV Fangcheng, YANG Shengjie, et al. The aging characteristic of Silicon rubber sheds of 110 kV composite insulators based on FTIR test[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 297-302.
[21] 彭向阳,李子健,黄振,汪政,罗义,方鹏飞. 基于TG-DSC法的复合绝缘子硅橡胶主组分含量研究[J]. 南方电网技术,2017(1):36-44. PENG Xiangyang, LI Zijian, HUANG Zhen, WANG Zheng, LUO Yi, FANG Pengfei. TG-DSC coupling techniques based investigation on main component content of silicone rubber composite insulators[J]. Southern Power System Technology, 2017(1): 36-44.
[22] 袁超. 基于微观电特性的复合绝缘子伞裙老化特征研究[D]. 广州:华南理工大学,2017.
[23] 张辉,屠幼萍,佟宇梁,李庆峰,邓桃. 基于 TSC 测试的硅橡胶复合绝缘子伞裙材料老化特性研究[J]. 中国电机工程学报,2012, 32(19):169-174. ZHANG Hui, TU Youping, TONG Yuliang, LI Qingfeng, DENG Tao. Study on aging characteristics of silicone rubber sheds of composite insulators based on TSC test[J]. Proceedings of the Chinese Society for Electrical Engineering, 2012, 32(19): 169-174.
[24] KIM S H, CHERNEY E A, HACKAM R, et al. Chemical changes at the surface of RTV silicone rubber coatings on insulators during dry-band arcing[J]. IEEE Transactions on Dielectrics and ElectricalInsulation, 1994, 1(1): 106-123.
[25] KUMAGAI S, WANG X, YOSHIMURA N. Solid residue formation of RTV silicone rubber due to dry-band arcing and thermal decomposition[J]. IEEE Transactions on Dielectrics and Electrical Insulation,1998,5(2):281-289.

备注/Memo

备注/Memo:
收稿日期:2019-07-30作者简介:曾磊磊(1993—),男,硕士,主要研究方向为输电线路绝缘材料及缺陷诊断。基金项目:国网江西省电力有限公司科技项目“输电线路专家分析与技改决策技术研究与应用”(编号:521820180013)。
更新日期/Last Update: 2020-02-20