[1]高 博,闫振华,谭 陈,等.35 kV支柱瓷绝缘子机械性能研究[J].电瓷避雷器,2019,(06):251-256.[doi:10.16188/j.isa.1003-8337.2019.06.040]
 GAO Bo,YAN Zhenhua,TAN Cheng,et al.Study on Mechanical Properties of 35 kV Post Porcelain Insulators[J].,2019,(06):251-256.[doi:10.16188/j.isa.1003-8337.2019.06.040]
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35 kV支柱瓷绝缘子机械性能研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年06期
页码:
251-256
栏目:
绝缘子
出版日期:
2019-12-10

文章信息/Info

Title:
Study on Mechanical Properties of 35 kV Post Porcelain Insulators
作者:
高 博1 闫振华1 谭 陈2 赵禹来2 荣 飞1 胡建林2
(1.国网宁夏电力公司电力科学研究院,银川 750001; 2.重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆 400030)
Author(s):
GAO Bo1 YAN Zhenhua1 TAN Cheng2 ZHAO Yulai2 RONG Fei1 HU Jianlin2
(1.Electric Power Research Institute of Ningxia Power Electric Corporation of State Grid, Yinchuan 750011,China; 2.State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China)
关键词:
冻融循环 支柱绝缘子 扭转 弯曲 微观结构
Keywords:
freeze-thaw cycle porcelain post insulator torsion bending microstructure
DOI:
10.16188/j.isa.1003-8337.2019.06.040
摘要:
高压支柱瓷绝缘子是发电厂和变电站常用电气设备之一,其质量直接影响着电网安全运行。支柱瓷绝缘子主要对刀闸支柱和硬管母线起机械支撑和绝缘作用,弯曲破坏负荷和扭转破坏负荷是支柱绝缘子重要的性能指标。以35 kV支柱瓷绝缘子为样品,对绝缘子样品进行弯曲破坏验、扭转破坏试验和冻融循环试验以及瓷柱的微观结构分析。试验结果表明:支柱瓷绝缘子扭转破坏负荷和弯曲破坏负荷试验后,发生断裂的瓷柱断面位置和形状有明显的不同; 冻融循环试验后支柱瓷绝缘子的扭转破坏负荷未见明显变化,而弯曲破坏负荷明显降低; 通过XRD图谱发现,试品支柱绝缘子的瓷柱材料为硅质瓷; SEM测试结果发现瓷柱中有较多的分布不均的带状气孔,气孔的形状和数量不仅影响绝缘子的机械性能,还与其抗温度变化的性能有一定的相关性。
Abstract:
The high voltage post porcelain insulator is one of the common electrical equipment in power plants and substations. Its quality directly affects the operation safety of the power grid. The main function of the post porcelain insulators is the mechanical support and insulation for the switch and the hard pipe bus, and the bending failure load and torsional failure load are the important performance indexes of the post insulators. In this paper, taking 35 kV post porcelain insulator as sample, the bending failure test, torsional failure test, freeze-thaw cycle test and microstructure analysis of insulator samples were carried out. The test results show that after the torsion failure load and bending failure load tests of post porcelain insulators, the position and the shape of the broken porcelain columns were obviously different; after the freeze-thaw cycle test, the torsional failure load of the post porcelain insulator was not changed obviously, but the bending failure load was obviously reduced. It is found through the XRD spectrogram that the material of porcelain column is siliceous porcelain; SEM test results show that there are many uneven banding pores in the porcelain column. The shape and the number of the pore not only affect the mechanical properties of the insulator, but also have some relations with the performance of resistance to temperature change.

参考文献/References:

[1] 闫斌, 邓大勇, 何喜梅,等. 高压支柱瓷绝缘子显微结构分析[J]. 绝缘材料, 2009, 42(3):40-45. YAN Bin, DENG Dayong, HE Ximei, et al. Analysis on the porcelain insulators microstructure of high_voltage pillar[J].Insulating Materials, 2009, 42(3):40-45.
[2] 臧春艳, 廖一帆, 肖声扬, 等. 振动法检测支柱绝缘子缺陷的研究[J]. 高压电器, 2013(3):8-12. ZHANG Chunyan, LIAO Yifan, Xiao Shengyang, et al. Research on detecting the defects of pillar insulators by vibration method[J]. High Voltage Apparatus, 2013(3):8-12.
[3] 孟将, 陈国宏, 刘俊建,等. 支柱绝缘子陶瓷材料的结构与性能[J]. 理化检验-物理分册, 2015, 51(1):8-12. MENG Jiang, CHEN Guohong, LIU Junjian, et al. Microstructure and properties of Stanchion Insulator Ceramics[J]. PTCA(Part A: PHYS.TEST.), 2015, 51(1):8-12.
[4] 孟勇, 龚国洪, 伍正平,等. 浅谈瓷绝缘子中微裂纹结构与晶粒尺寸的关系[J]. 矿物学报, 2011(s1):1004-1005. MENG Yong, GONGGuohong, WU Zhengpin, et al. Brief discussion on the relationship between micro crack structure and grain size in porcelain insulators[J]. Journal of mineral, 2011(s1):1004-1005.
[5] 董云云, 苏凤, 孙玉梅,等. 支柱瓷绝缘子裂纹数值建模及应力强度因子研究[J]. 电瓷避雷器, 2016(6):16-21. DONG Yunyun, SUN Feng, SUN Yumei, et al. Research of numerical modeling and stressintensity factor for porcelain post insulator crack[J]. Insulators and Surge Arresters, 2016(6):16-21.
[6] 杨彬. 支柱瓷绝缘子机电性能检测技术研究[D]. 北京: 华北电力大学, 2015. YANG Bin. Research on mechanical and electrical performance detection of pillar porcelain insulators [D]. Beijing: North China Electric Power University, 2015.
[7] 韦晓星, 孙勇, 陈如龙,等. 水平安装支柱瓷绝缘子断裂故障及弯曲负荷分析[J]. 电瓷避雷器, 2017(2): 156-163. WEI Xiaoxing, SUN Yong, CHEN Rulong et al.Breakage failure and bending strength analysis of porcelain post insulators in horizontal installation[J]. Insulators and Surge Arresters, 2017(2):156-163.
[8] 吴旭涛, 危鹏. 一起220 kV隔离开关支柱瓷绝缘子断裂事故的原因分析[J]. 电瓷避雷器, 2011(6):11-14. WU Xutao, WEI Peng. Cause Analysis on a rupture accident of stanchion porcelain insulators in 220 kv isolating switch[J]. Insulators and Surge Arresters, 2011(6):11-14.
[9] 杨海涛, 陈庆涛, 丁国成,等. 高压支柱瓷绝缘子力学特性分析及断裂机理研究[J]. 电瓷避雷器, 2017(4):178-183. YANG Haitao, CHEN Qingtao, DING Guocheng, et al. Mechanical properties analysis and fracture mechanism study ofhigh voltage post porcelain insulator[J]. Insulators and Surge Arresters, 2017(4):178-183.
[10] 王少华, 李特, 周象贤,等. 变电站瓷支柱绝缘子断裂故障分析及预防措施[J]. 电瓷避雷器, 2016(5):35-38. WANG Shaohua, LI Te, ZHOU Xiangxian, et al.Fracture fault analysis of substation porcelain post insulator and countermeasures[J]. Insulators and Surge Arresters, 2016(5):35-38.
[11] 雍军, 胡晓黎, 沈庆河,等. 高压瓷支柱绝缘子防止断裂技术的研究[J]. 山东电力技术, 2007(2):3-6. YONGJun, HU Xiaoli, SHENG Qinghe, et al. TheResearchonHighVoltagePorcelainPostInsulatorCrack[J]. ShandongDianliJishu, 2007(2):3-6
[12] 邱志斌, 姚文军, 李慧慧,等. 高压隔离开关支柱瓷绝缘子机械特性研究[J]. 绝缘材料, 2013(5):37-42. QIU Zhibin, YAO Wenjun, LI Huihui, et al. Mechanical properties study of porcelain post insulator for high voltage disconnector[J]. Insulating Materials,2013(5):37-42.
[13] 邱志斌, 阮江军, 黄道春,等. 输电线路悬式瓷绝缘子老化形式分析与试验研究[J]. 高电压技术, 2016, 42(4):1259-1267. QIU Zhibin, YUAN Jiangjun, HUANG Daocun, et al. Study on aging modes and test of transmission line porcelain suspension insulators[J]. High Voltage Engineering, 2016, 42(4):1259-1267
[14] 孟将, 陈国宏, 王若民,等. 支柱瓷绝缘子的组织结构及其可靠性[J]. 硅酸盐通报, 2015, 34(7):2001-2006. MENG Jiang, CHEN Guohong, WANG Ruomin, et al. Microstructure and reliability of ceramic stanchion insulators[J]. Bulletin Of The Chinese Ceramic Society, 2015, 34(7):2001-2006.
[15] 孟将, 陈国宏, 刘俊建,等. 支柱绝缘子陶瓷材料的结构与性能[J]. 理化检验-物理分册, 2015, 51(1):8-12. MENG Jiang, CHENGuohong, LIU Junjian, et al. Microstructure and properties of stanchion insulator ceramics[J]. PTCA(Part A: PHYS.TEST.), 2015, 51(1):8-12.
[16] 标称电压高于1 000 V系统用户内和户外支柱绝缘子 第1部分:瓷或玻璃绝缘子的试验:GB 8287.1-2008 [S]. 北京:中国标准出版社, 2008. Nominal voltage is higher than 1 000 V system user and outdoor post insulators- part first: porcelain or glass insulator test [S]. Standards Press of China, 2008.
[17] 普通混凝土长期性能和耐久性能试验方法标准[M]. 北京:中国建筑工业出版社,2009. Standard Test Method for long term performance and durability of plain concrete[M]. China Architecture and Building Press,2009.
[18] 徐小燕. 电瓷显微结构及其对机械性能的影响[D]. 长沙:湖南大学, 2016. XU Xiaoyan. Microstructure ofporcelaininsulatoranditseffectonthe mechanical properties[D]. Hunan, University, 2016.
[19] 丁京玲, 尹宗举, 姚军,等. 瓷质显微结构对盘形悬式瓷绝缘子性能的影响[J]. 电瓷避雷器, 2013(5):13-18. DING Jingjin, YIN Zongju, YAO Jun, et al. Effect of ceramic microstructure on the performance of disk suspension porcelain insulators[J].Insulators and Surge Arresters, 2013(5):13-18.

备注/Memo

备注/Memo:
收稿日期:2017-12-29 作者简介:高博(1984—),男,工程师,主要从事高电压试验技术及输电线路设备状态评估技术研究。
更新日期/Last Update: 2019-12-10