[1]彭向阳,张中浩,黄 振,等.广东地区高温发热线路棒形复合绝缘子劣化特性[J].高压电器,2020,56(03):104-110.[doi:10.13296/j.1001-1609.hva.2020.03.015]
 PENG Xiangyang,ZHANG Zhonghao,HUANG Zhen,et al.Deterioration Characteristics of Rod Type Composite Insulators in Guangdong High Temperature Heating Line[J].High Voltage Apparatus,2020,56(03):104-110.[doi:10.13296/j.1001-1609.hva.2020.03.015]
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广东地区高温发热线路棒形复合绝缘子劣化特性()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年03期
页码:
104-110
栏目:
研究与分析
出版日期:
2020-03-15

文章信息/Info

Title:
Deterioration Characteristics of Rod Type Composite Insulators in Guangdong High Temperature Heating Line
作者:
彭向阳1 张中浩2 黄 振1 王 锐1
(1. 广东电力科学研究院, 广州 510080; 2. 清华大学深圳研究生院, 广东 深圳 518055)
Author(s):
PENG Xiangyang1 ZHANG Zhonghao2 HUANG Zhen1 WANG Rui1
(1. Guangdong Electric Power Research Institute, Guangzhou 510080, China; 2. Graduate School at Shenzhen, Tsinghua University, Guangdong Shenzhen 518055, China)
关键词:
复合绝缘子 界面劣化 芯棒酥朽 高温发热 电场畸变
Keywords:
composite insulators interface deterioration mandrel crisp high temperature fever electric field distortion
DOI:
10.13296/j.1001-1609.hva.2020.03.015
摘要:
为了揭示高温发热的线路棒形复合绝缘子的劣化特性,文中对广东电网江门供电局某220 kV故障绝缘子开展了研究。观察了该支绝缘子的外观形貌,在带电状态下进行红外、紫外检测。之后进行解剖观察,采用现代材料测试方法(SEM、XPS)对比了芯棒劣化处与正常处的材料特性,使用宽频介电谱仪对比测试了劣化处与正常处芯棒短样的电气参数。试验和解剖结果发现,该绝缘子护套表面有击穿孔,加压温升严重、外部有微弱放电。内部交界面处芯棒表面劣化已经从高压端延伸至中部。材料分析表明界面处芯棒受到了严重的放电破坏,环氧树脂发生裂解,玻璃纤维有断裂和蚀损现象,存在氧化分解、酸性液体侵蚀等劣化过程。此外,劣化处芯棒的介电常数、介损角正切、电导率都有了明显的上升,造成电场进一步产生畸变,局部放电过程增强。研究表明,该类高温发热的线路棒形复合绝缘子芯棒劣化严重,并且局部放电等劣化过程较为剧烈,断裂风险极大。
Abstract:
In order to reveal the deterioration characteristics of the high temperature heating line rod composite insulators, this paper has carried out a study on a 220 kV fault insulator of the Jiangmen Power Supply Bureau of Guangdong power grid. The appearance of the insulators was observed and the infrared and ultraviolet detection was carried out under the charged state. Then the anatomical observation was carried out. The material characteristics of the core rod deterioration and normal location were compared with modern material testing method (SEM and XPS). The electrical parameters of the short rod of the deteriorating part and the normal mandrel were compared with the broadband dielectric spectrometer. The experimental and anatomical results show that the surface of the insulator is perforated, the pressure temperature rises seriously, and the external discharge is weak. The surface degradation of the mandrel at the internal interface has been extended from the high pressure end to the middle. The material analysis shows that the core rod at the interface is seriously damaged by electric discharge. The epoxy resin is cracked, and the glass fiber is cracked and eroded. There are deterioration processes such as oxidative decomposition and acid liquid erosion. In addition, the dielectric constant, dielectric loss tangent and electrical conductivity of the core rod increased significantly, resulting in further distortion of the electric field and enhanced partial discharge. The research shows that the core rod of the high temperature heating line composite insulator is deteriorated seriously, and the partial discharge and other deterioration processes are more severe, and the risk of fracture is great.

参考文献/References:

[1] 关志成. 绝缘子及输变电设备外绝缘[M]. 北京:清华大学出版社, 2006. GUAN Zhicheng. Insulators and transmission and transmission equipment external insulation[M]. Beijing:Tsinghua University Press,2006.
[2] LUTZ B,CHENG L,GUAN Z,et al. Analysis of a fractured 500 kV composite insulator-identification of aging mechanisms and their causes[J]. IEEE Transactions on Dielectrics & Electrical Insulation,2012,19(5):1723-1731.
[3] WANG J,LIANG X,GAO Y. Failure analysis of decay-like fracture of composite insulator[J]. IEEE Transactions on Dielectrics & Electrical Insulation,2015,21(6):2503-2511.
[4] 梁曦东,高岩峰. 复合绝缘子酥朽断裂研究(一):酥朽断裂的主要特征、定义及判据[J]. 中国电机工程学报,2016,36(17):4778-4785. LIANG Xidong,GAO Yanfeng. Study on composite insulator crisp rotten fracture(a): The main character,crisp rotten fracture of the definition and criterion of decay-like fracture[J]. Chinese of the CSEE,2016,36(17): 4778-4785.
[5] 高岩峰,梁曦东. 复合绝缘子酥朽断裂研究(二):酥朽断裂的试验模拟及预防措施讨论[J]. 中国电机工程学报,2016,36(18):5070-5077. GAO Yanfeng,LIANG Xidong. Study on the crisp decay of composite insulators(two): Experimental simulation and prevention measures for crisp and decayed fracture[J]. Chinese of the CSEE,2016,36(18): 5070-5077.
[6] 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. Study on the diffusion properties of water in high temperature vulcanized silicone rubber[J]. Chinese of the CSEE,2015,35(1): 231-239.
[7] 王黎明,张中浩,成 立,等. 复合绝缘子护套受潮对端部异常温升的影响[J]. 电网技术,2016,40(2):608-613. WANG Liming,ZHANG Zhonghao,CHENG Li,et al. Influence of composite insulators jacket damp on end abnormal temperature rise [J]. Power Grid Technology,2016,40(2): 608-613.
[8] KIKUCHI M,TAKAHASHI K,YOSHIDA T,et al. Interfacial phenomena in composite hollow insulator[C]//Conference on Electrical Insulation and Dielectric Phenomena(CEIDP). Montreal,QC, Canada:IEEE,2012:771-774.
[9] DANG W,KUBOUCHI M,SEMBOKUYA H,et al. Chemical recycling of glass fiber reinforced epoxy resin cured with amine using nitric acid[J]. Polymer,2005,46(6):1905-1912.
[10] YAO Y,BAO W,GAO Y,et al. Effects of corona discharge on the properties of fiber reinforced plastics used in composite insulator[C]//Electrical Insulation and Dielectric Phenomena. [S.l.]:IEEE,2016:951-954.
[11] 王家福,高岩峰,梁曦东. 复合绝缘子芯棒在表面微电流作用下的水解[J]. 高电压技术,2014,40(3):843-852. Wang Jiafu,GAO Yanfeng,LIANG Xidong. Hydrolysis of composite insulator core on the surface of the micro current[J]. High Voltage Engineering,2014,40(3):843-852.
[12] 於秋霞,李 斌,陆宗文,等. 玻璃纤维耐酸腐蚀性的评价方法[J]. 玻璃纤维,2015(6):7-13. YU Qiuxia,LI Bin,LU Zongwen,et al. Evaluation method of acid corrosion resistance of glass fiber[J]. Glass Fiber,2015(6): 7-13.
[13] 袁 田,向铁元,代 静,等. 棒形复合绝缘子芯棒吸湿问题的分析与对策[J]. 高电压技术,2014,40(11):3468-3476. YUAN Tian,XIANG Tieyuan,DAI Jing,et al. Analysis and countermeasures of the moisture absorption of the core rod of rod type composite insulators[J]. High Voltage Engineering,2014,40(11): 3468-3476.
[14] 徐言超,刘洪刚,李永艳,等. 玻璃纤维及复合材料耐酸性能研究[J]. 玻璃纤维,2010(5):25-28. XU Yanchao,LIU Honggang,LI Yongyan,et al. Study on acid resistance of glass fiber and composites[J]. Glass Fiber,2010 (5): 25-28.
[15] 张福增,宋 磊,李锐海,等. 复合绝缘子断裂原因分析及缺陷评价方法[J]. 高电压技术,2012,38(11):3093-3100. ZHANG Fuzeng,SONG Lei,LI Ruihai,et al. Fracture analysis and defect evaluation method of composite insulators [J]. High Voltage Engineering,2012,38(11): 3093-3100.
[16] 谢从珍,刘 珊,刘 芹,等. 交流500 kV复合绝缘子内部缺陷对轴向电场分布的影响[J]. 高电压技术,2012,38(4):922-928. XIE Congzhen,LIU Shan,LIU Qin,et al. The influence of internal defects on the axial electric field distribution of 500 kV composite insulators[J]. High Voltage Engineering,2012,38(4): 922-928.
[17] TU Y,GONG B,WANG C,et al. Effect of moisture on temperature rise of composite insulators operating in power system[J]. IEEE Transactions on Dielectrics & Electrical Insulation,2015,22(4):2207-2213.
[18] 张福增,宋 磊,屠幼萍,等. 500 kV复合绝缘子运行特性分析[J]. 高电压技术,2012,38(10):2536-2541. ZHANG Fuzeng,SONG Lei,TU Youping,et al. Analysis of the operation characteristics of 500 kV composite insulators [J]. High Voltage Engineering,2012,38(10): 2536-2541.
[19] 梁曦东,高岩峰,王家福,等. 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,et al. High peak,China rapid development process of silicone rubber composite insulators[J]. High Voltage Engineering,2016,42(9): 2888-2896.
[20] BAO W,LIU Y,GAO Y,et al. Study on the interface partial discharge between silicone rubber and fiber reinforced plastic in composite insulators[C]//Electrical Insulation and Dielectric Phenomena. [S.l.]:IEEE,2015:762-765.
[21] 冉学彬,鲁 兹,成 立,等. 500 kV复合绝缘子脆断事故研究与劣化机理分析[J]. 高压电器,2013,49(9):35-43. RAN Xuebin,LU Ci,CHENG Li,et al.Fracture fault analysis and aging mechanism study for 500 kV composite insulator[J]. High Voltage Apparatus,2013,49(9): 35-43.
[22] 李兆广,刘俊勇. 500 kV V形复合绝缘子串芯棒断裂故障分析[J]. 广东电力,2009,22(11):70-72. LI Zhaoguang,LIU Junyong. 500 kV V composite insulator string mandrel [J]. Guangdong Electric Power,2009,22 (11): 70-72.
[23] 王祖林,黄 涛,刘 艳,等. 合成绝缘子故障的红外热像在线检测[J]. 电网技术,2003,27(2):17-20. WANG Zulin,HUANG Tao,LIU Yan,et al. On-line inspection of defective composite insulators by infrared tempera ture measuremeng[J]. Power Grid Technology,2003,27(2): 17-20.

备注/Memo

备注/Memo:
收稿日期:2019-11-20; 修回日期:2020-01-24彭向阳(1971—),男,工学硕士,教授级高工,主要研究方向为输电线路运行及故障诊断、输变电设备智能高效运维、电力系统过电压及绝缘配合等。
更新日期/Last Update: 2020-03-15