[1]马佳豪,孙海涛,胡 俊,等.一起800 kV断路器液压机构频繁打压故障及分析[J].高压电器,2019,55(09):247-253.[doi:10.13296/j.1001-1609.hva.2019.09.034]
 MA Jiahao,SUN Haitao,HU Jun,et al.Failures Analysis of a 800 kV Circuit Breaker Hydraulic Mechanism Frequent Bulge[J].High Voltage Apparatus,2019,55(09):247-253.[doi:10.13296/j.1001-1609.hva.2019.09.034]
点击复制

一起800 kV断路器液压机构频繁打压故障及分析()
分享到:

《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年09期
页码:
247-253
栏目:
技术讨论
出版日期:
2019-09-30

文章信息/Info

Title:
Failures Analysis of a 800 kV Circuit Breaker Hydraulic Mechanism Frequent Bulge
作者:
马佳豪1 孙海涛2 胡 俊2 贾 卓2 宋 波3 高浩博1
(1. 西安理工大学水利水电学院, 西安 710048; 2. 国网陕西电力公司检修公司, 西安 710065; 3. 西安海纳输配电设备 有限责任公司, 西安 710032)
Author(s):
MA Jiahao1 SUN Haitao2 HU Jun2 JIA Zhuo2 SONG Bo3 GAO Haobo1
(1. Institute of Water Resource and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, China; 2. State Grid Shaanxi Electric Power Maintenance Company, Xi’an 710065, China; 3. Xi’an Haina Transmission and Distribution Equipment Co., Ltd., Xi’an 710032, China)
关键词:
液压机构 频繁打压 控制阀 油压开关
Keywords:
hydraulic mechanism frequent bulge control valve lubricant pressure switch
DOI:
10.13296/j.1001-1609.hva.2019.09.034
摘要:
针对西北电网某变电站高压断路器液压操作机构频繁打压故障,通过解体分析,逐步 排查各部件,发现是由于一级阀密封圈损坏,导致控制阀渗漏油;油压开关存在内渗漏,油箱 防震容器损坏,从而导致油泵频繁启动。通过分析部件动作过程及生产工艺,发现控制阀阀座 -6小孔与倒角不同轴造成两侧受力不均,密封圈局部发生变形;储能活塞与活塞缸的接触面过 于粗糙,摩擦产生的杂质混入液压油;活塞、导向杆以及弹簧座的配合尺寸研磨不当;在装配 过程中防震容器的阀口或钢珠损坏;这4点都是导致液压油渗漏的原因。此外,文中罗列了常 见的断路器液压机构频繁打压的原因以及产生机理。最后,从设备巡检、生产工艺、结构优化 三个方面对液压油渗漏引起的液压操作机构频繁打压问题提出了建议和改进措施。
Abstract:
A hydraulic mechanism frequent bulge of a high-voltage circuit breaker occurred in a substation of the Northwest Power Grid. After disassembling analysis and checking components, this paper finds that the first sealing ring is damaged , which caused control valve leaking oil. Besides, the oil pressure switch has internal leakage, which caused frequent bulge, and the damage of the oil tank shockproof container intensified this situation. Considering components motion and manufacturing techniques, there are four points causing the leakage of the hydraulic oil. The first, the valve seat of the control valve has a small hole with a different axis from the chamfering angle, causing uneven force on both sides, so the seal ring is partially deformed. The second, the contact surface of the energy storage piston and the piston cylinder is too rough, resulting in impurities in friction. The third, the mating dimensions of piston, guide bar and spring seat are ground improperly. The last, the valve port or steel ball of the shockproof container is likely to damage during the assembly. In addition, the paper lists the causes of frequent bulge about common circuit breaker hydraulic mechanisms. Finally, the paper puts forward suggestions and improvement measures from three aspects of equipment inspection, manufacturing techniques and structure optimization.

参考文献/References:

[1] 李建明,王志勇,王淑琛. 3AQ/3AT型断路器液压机构油泵频繁打压故障分析及处理方法 [J]. 高压电器,2011, 47(5):103-107. LI Jianming, WANG Zhiyong, WANG Shuchen. Analysis and treatment of frequent bulge of the oil pump of hydraulic mechanism for 3AQ/3AT circuit breaker[J]. High Voltage Apparatus, 2011,47(5): 103-107.
[2] 闫群民,马永翔,王宏涛. 800 kV罐式SF6断路器操动机构频繁打压现象分析[J]. 高压电器,2011,47(2):96-99. YAN Qunmin,MA Yongxiang,WANG Hongtao. Phenomenon analysis for frequent pressuring of 800 kV tank SF6 circuit breaker’s operating mechanism[J]. High Voltage Apparatus,2011,47(2): 96-99.
[3] 秦怡宁,曾彦珺,曹 鸿,等. LW15A-550型断路器爆炸事故原因分析[J]. 高压电 器,2016,52(7):179-184. QIN Yining,ZENG Yanjun,CAO Hong,et al. Cause analysis of an explosion accident of LW15A-550 circuit breaker[J]. High Voltage Apparatus ,2016,52(7): 179-184.
[4] 岳彦峰,黄兴泉. 一起SF6断路器灭弧室爆炸的原因分析[J]. 高电压技术,2007 (6):189-190. YUE Yanfeng,HUANG Xingquan. Analysis of an explosion accident of arc chamber of SF6 circuit breaker[J]. Power System Technology,2007(6): 189-190.
[5] 潘中伟,肖驰夫,刘 斌,等. 220 kV断路器油泵电动机频繁启动的原因分析与处 理[J]. 浙江电力,2017,36(2):34-37. PAN Zhongwei,XIAO Chifu,LIU Bin,et al. Cause analysis and solution to frequent oil pump motor start of 220 kV circuit breaker[J]. Zhejiang Electric Power,2017,36(2): 34-37.
[6] 韩筱慧,闻飞翔,费 宇,等. HMB-4型液压弹簧操作机构频繁打压故障的现场检 修[J]. 浙江电力,2015,34(4):69-72. HAN Xiaohui,WEN Feixiang,FEI Yu,et al. On-site maintenance of frequent pressurizing for HMB-4 hydraulic-spring operating mechanism[J]. Zhejiang Electric Power,2015,34(4): 69-72.
[7] 郑俊洋,司雪峰,段利伟. LW10B-252型断路器机构打压频繁的分析[J]. 高压电器 ,2009,45(2):120-121. ZHENG Junyang,SI Xuefeng,DUAN Liwei. Analysis of frequent pressurizing in LW10B-252 circuit breaker[J]. High Voltage Apparatus, 2009,45(2): 120-121.
[8] 冯秀宾. CY5型液压操动机构频繁打压的重点检修项目[J]. 高电压技术,2005, 31(6):91. FENG Xiubin. Main examination of frequent hydr-aulic strike failure of CY5 hydraulic controlled mechanism[J]. High Voltage Apparatus,2005,31(6): 91.
[9] 岳亚林,吴 东. MHMe-2Y-550型断路器频繁打压的故障分析及解决方法[J]. 高压 电器,2003,39(4):72-73. YUE Yalin,WU Dong. Fault analysis and solution of MHMe-2Y-550 type circuit breaker[J]. High Voltage Apparatus,2003,39(4): 72-73.
[10] 梁家裴. 六氟化硫断路器冬季打压频繁问题的研究[D]. 郑州大学,2018. LIANG Jiapei. Study on frequent incidents of sulfur hexaflouride circuit breaker in winter[D]. Zhengzhou: Journal of Zhengzhou Uniiversity,2018.
[11] 李海波,万荣兴. 800 kV罐式断路器液压机构渗油的分析及对策[J]. 高压电器, 2012,48(9):104-107. LI Haibo,WAN Rongxing. Analysis and countermeasures to oil leakage fault of 800 kV pot breakers hydraulic mechanism[J]. High Voltage Apparatus,2012,48(9): 104-107.
[12] 黎 斌. SF6高压电器设计[M]. 北京:机械工业出版社,2003. LI Bin. Design of SF6 high voltage electrical apparatus[M]. Beijing: China Machine Press,2003.
[13] 梁义明,陈 明,蔺树全,等. 500 kV断路器液压操作机构频繁打压故障分析 [J]. 吉林电力,2010(5):46-47. LIANG Yiming,CHEN Ming,LIN Shuquan,et al. Fault analysis of beating frequently of 500 kV bre-aker hydraulic mechanism[J]. Jilin Electric Power,2010(5): 46-47.
[14] 巫环科,陈永佳. 500 kV HGIS液压操作机构打压频繁的分析及对策[J]. 高压电 器,2012,48(2):119-122. WU Huanke,CHEN Yongjia. Analysis and countermeasures to frequent pressurizing of 500 kV HGIS hydraulic operating mechanism[J]. High Voltage Apparatus,2012,48(2): 119-122.
[15] 关永刚,杨元威,钟建英,等. 高压断路器机械故障诊断方法综述[J]. 高压电器 ,2018,54(7):10-19. GUAN Yonggang,YANG Yuanwei,ZHONG Jianying,et al. Review on mechanical fault diagnosis met-hods for High-voltage circuit breakers[J]. High Voltage Apparatus,2018,54(7): 10-19.
[16] 林 莘,李鑫涛,王飞鸣,等. 触头烧损对SF6断路器介质恢复特性的影响[J]. 高电压技术,2014,40(10):3125-3134. LIN Xin,LI Xintao,WANG Feiming,et al. Dielectric recovery characteristics of SF6 circuit breaker considering contact burning loss[J]. High Voltage Engineering,2014,40(10): 3125-3134.
[17] 王 静,许艳蒲,张 欣,等. 液压机构储能电机启动次数与寿命的研究分析 [J]. 高压电器,2018,54(2):218-223. WANG Jing,XU Yanpu,ZHANG Xin,et al. Research and analysis on the number of starts and Life of energy storage motors in hydraulic mechanism[J]. High Voltage Apparatus,2018,54(2): 218-223.
[18] 陈伟民,张长虹,黎卫国,等. 液压弹簧机构漏油及频繁打压故障分析与处理 [J]. 高压电器,2018(12):287-291. CHEN Weimin,ZHANG Changhong,LI Weiguo,et al. Analysis and treatment on oil leakage and fre-quent suppression fault of hydraulic spring mech-anism[J]. High Voltage Apparatus,2018(12):287-291.
[19] 孟晓承,韩学山,许易经,等. SF6高压断路器机械故障概率的非精确条件估计 [J/OL]. 电工技术学报:1-10[2019-01-29]. https://doi. org/10. 19595/j. cnki. 1000- 6753. tces. 180191. MENG Xiaocheng,HAN Xueshan,XU Yijing,et al. Imprecise estimation for conditional mechanical ou-tage probabilities of SF6 high voltage circuit breakers[J/OL]. Transactions of China Electro technical S-ociety:1-10 [2019-01-29]. https://doi. org/10. 19595/j. cnki. 1000-6753. tces. 180191.
[20] 郑 雷. 液压机构油泵频繁启动原因分析及对策[J]. 高压电器,2010,46(7): 85-89. ZHENG Lei. Analysis on frequent start of hydraulic mechanism of a circuit breaker with countermeasure[J]. High Voltage Apparatus,2010,46(7): 85-89.
[21] 张旭宏,陈保伦. 断路器用大功率液压操动机构的设计[J]. 高压电器,2010, 46(1):1-4. ZHANG Xuhong,CHEN Baolun. Design of the high power hydraulic operating mechanism for CB[J]. High Voltage Apparatus,2010,46(1): 1-4.
[22] 孙永恒,张 铎,赵云学,等. 800 kV罐式SF6断路器的研制开发[J]. 高压电器 ,2009,45(6):1-4. SUN Yongheng,ZHANG Duo,ZHAO Yunxue,et al. Research and development of 800 kV tank SF6 circuit breaker[J]. High Voltage Apparatus,2009, 45(6): 1-4.
[23] 周仙娥,史芳颖,康子雄,等. 断路器用液压操动机构储能碟簧的可靠性研究 [J]. 高压电器,2015,51(1):98-104. ZHOU Xian’e,SHI Fangying,KANG Zixiong,et al. Reliability research of storage disc springs of hydraulic operating mechanism for circuit breaker[J]. High Voltage Apparatus,2015,51(1): 98-104.

备注/Memo

备注/Memo:
收稿日期:2019-06-30; 修回日期:2019-08-24 基金项目:陕西省重点研发计划(2018ZDXM-GY-169). Project Supported by Shaanxi Key Research and Development Program(2018ZDXM-GY- 169).马佳豪(1996—),男,硕士研究生,主要从事高压设备故障状态研究、高压大电流测控技术研 究。 孙海涛(1975—),男,本科,工程师,主要从事变电设备运检管理。 胡 俊(1978—),男,本科,工程师,主要从事电力设备检修、试验分析及工程管理。 贾 卓(1985—),女,硕士,工程师,主要从事变电运维管理及基建工程管理。 宋 波(1976—),男,高级工程师,主要从事智能电网技术研究。 高浩博(1994—),男,硕士研究生,主要从事电力大数据研究。
更新日期/Last Update: 2019-09-10