某220 kV变电站GIS弹簧触头故障分析及优化方案
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摘要
根据某220 kV变电站某一个GIS设备触头出现的故障,对现场GIS设备进行拆卸后发现弹簧触指发生了变形。借助于X射线检测技术还发现另外6组GIS设备中弹簧触指亦有不同程度的形变。结合现场处理情况分析了弹簧触指变形的原因,变形是由于动触头在与弹簧触指接触过程中的冲击载荷过大所导致。并根据弹簧触头的特点创建了模型,利用Adams仿真软件对弹簧触头的工况进行了仿真分析,并对弹簧产生形变的原因进行了分析。仿真结果显示,动触头在与弹簧触指接触过程中弹簧受力增大,在齿轮槽的作用下使得弹簧应力集中,引起弹簧变形。根据形变原因提出了弹簧触头的优化方案,并根据优化方案对出现故障的GIS进行了相应的处理。
In this paper,according to a GIS equipment contact failure in 220 kV substation,the site GIS equipment after the demolition of the spring finger is found deformation. With the help of X-ray detection technology,it has been founded that the spring fingers have varying degrees of deformation in six groups of GIS equipment. Combining with the field treatment,the reasons for the deformation of spring fingers are analyzed. Deformation is caused by excessive impact load during contact between the moving contact and the spring fingers. According to the characteristics of the spring contact,the model is created. The working condition of the spring contact is simulated by Adams simulation software,and the causes of the deformation of the spring are analyzed. The simulation results show that the spring contact force increases with the spring contact during the contact of the spring contact,and the spring stress is concentrated under the action of the gear groove,causing the spring to deform. According to the deformation reason,the optimization scheme of the spring contact is put forward,and the faulty GIS is processed according to the optimization scheme.
In this paper,according to a GIS equipment contact failure in 220 kV substation,the site GIS equipment after the demolition of the spring finger is found deformation. With the help of X-ray detection technology,it has been founded that the spring fingers have varying degrees of deformation in six groups of GIS equipment. Combining with the field treatment,the reasons for the deformation of spring fingers are analyzed. Deformation is caused by excessive impact load during contact between the moving contact and the spring fingers. According to the characteristics of the spring contact,the model is created. The working condition of the spring contact is simulated by Adams simulation software,and the causes of the deformation of the spring are analyzed. The simulation results show that the spring contact force increases with the spring contact during the contact of the spring contact,and the spring stress is concentrated under the action of the gear groove,causing the spring to deform. According to the deformation reason,the optimization scheme of the spring contact is put forward,and the faulty GIS is processed according to the optimization scheme.
引文
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[2]赵江涛,陈文革.螺旋弹簧触指及其材料的研究与进展[J].上海电气技术,2012,5(4):30-37.ZHAO Jiangtao,CHEN Wenge.Research and development of screwy spring contact and materials[J].The Journal,2012,5(4):30-37.
[3]徐金富,龚晨,罗谷雨,等.螺旋弹簧触指的研制及应用[J].金属热处理,2006(6):10-12.XU Jinfu,GONG Chen,LUO Guyu,et al.Development and application of[J].Heat Treatment of Metals,2006(6):10-12.
[4]王俊波,苗银银,罗容波,等.GIS触头接触状况检测现状分析[J].高压电器,2013,49(12):137-140.WANG Junbo,MIAO Yinyin,LUO Rongbo,et al.GIScontact detection analysis of[J].High Voltage Apparatus,2013,49(12):137-140.
[5]路亚娟,李梦娜,雪金海,等.弹簧触指镀银后线径变细事故分析与处理[J].现代商贸工业,2016(25):189-190.LU Yajuan,LI Mengna,XUE Jinhai,et al.Analysis and treatment of the line diameter of spring contact point after silver plating[J].Modern Business Trade Industry,2016(25):189-190.
[6]王俊波,王岩,李国伟,等.一起GIS触头接触不良导致的接地事故分析[J].电工材料,2013(4):43-45.WANG Junbo,WANG Yan,LI Guowei,et al.Together with the GIS contact analysis of grounding accidents caused by bad[J].Electrical Engineering Materials,2013(4):43-45.
[7]李超,陶蓉.一起126 k V GIS设备故障后的检测实例分析[J].高压电器,2015,51(1):145-149.LI Chao,TAO Rong.Analysis of an instance of 126 kV GISequipment failure detection[J].High Voltage Apparatus,2015,51(1):145-149.
[8]李秀广,王博,怡凯,等.一起330 k V变电站GIS设备故障分析[J].电工材料,2017(1):16-19.LI Xiuguang,WANG Bo,YI Kai,et al.Analysis of the faults of GIS equipment in 330 kV substation[J].Electrotechnical Materials,2017(1):16-19.
[9]徐金富,龚晨,罗谷雨,等.螺旋弹簧触指的研制及应用[J].金属热处理,2006(6):10-12.XU Jinfu,GONG Chen,LUO Guyu,et al.Development and application of contact finger of spiral spring[J].Heat Treatment of Metals,2006(6):10-12.
[10]王兆军,谢田桑,聂二磊.弹簧触指在GIS中的使用[J].电气制造,2013(7):44-46.WANG Zhaojun,XIE Tiansang,NIE Erlei.Use of spring contact in GIS[J].Electrical Manufacturing,2013(7):44-46.
[11]李健.浅析弹簧触指在GIS中的应用[J].高压电器,2007,43(6):438-439.LI Jian.Application of the canted coil spring to GIS[J].High Voltage Apparatus,2007,43(6):438-439.
[12]郭自豪,赵献臣,薛红涛.弹簧触指在隔离开关中的应用研究[J].电工电气,2016(9):43-46.GUO Zihao,ZHAO Xianchen,XUE Hongtao.Study on application of spring contact finger in isolating switch[J].Electrotechnics Electric,2016(9):43-46.
[13]张旭龙,陈毅,潘连玉阳,等.斜圈弹簧的应用研究[J].河南科技,2013(4):128.ZHANG Xulong,CHEN Yi,PAN Lianyuyang,et al.Study on application of inclined ring spring[J].Henan Science and Technology,2013(4):128.
[14]颜燕琼,刘宏昭.高压断路器螺旋弹簧触指分析及计算[J].机械科学与技术,2016(7):1059-1064.YAN Yanqiong,LIU Hongzhao.Analysis and calculation of contact finger of helical spring of high voltage circuit breaker[J].Mechanical Science and Technology,2016(7):1059-1064.
[15]王建平,李健,黄维,等.斜圈弹簧力学性能的有限元分析[J].力学与实践,2015(3):332-337.WANG Jianping,LI Jian,HUANG Wei,et al.Finite element analysis of mechanical properties of inclined ring spring[J].Mechanics in Engineering,2015(3):332-337.
[16]刘三星,张焕亮,袁鸿.斜圈弹簧的实验研究及初步设计[C]//2010中国仪器仪表学术,产业大会.[S.l.]:[s.n.],2010:206-210.LIU Sanxing,ZHANG Huanliang,YUAN Hong.Experimental research and preliminary design of helical ring spring[C]//2010 China Instrument and Meter Industry Conference.[S.l.]:[s.n.],2010:206-210.
[17]赵飞,李超,何洲,等.高导电性弹簧触指几何尺寸与压变力关系研究[J].电工材料,2017(1):12-15.ZHAO Fei,LI Chao,HE Zhou,et al.Study on the relationship between the geometrical dimensions of the high conductive spring contact finger and the force changing[J].Electrical Engineering Materials,2017(1):12-15.
[18]黄海文.GIS隔离开关故障分析与预防对策研究[J].科技与创新,2014(23):45-46.HUANG Wenhai.GIS analysis and prevention of yellow sea isolation switch fault countermeasures[J].Science and Technology&Innovation,2014(23):45-46.