摘要
以550 kV柱式断路器合闸电阻为研究对象,阐述了影响其整机可靠性的关键装置-脱扣装置结构以及工作机理,论证了脱扣装置故障发生的原因以及危害程度。借助现代设计方法有限元仿真分析脱扣装置各部件在工作过程中的受力情况,并根据相应的仿真计算结果提出了优化改进措施,对优化后的结果进行反馈验证,产品零部件的安全系数具有较大的提升。同时,在仿真分析的基础上,依据优化结果设计相应试验样机,最后通过5 000次机械操作试验进行可靠性和稳定性验证,效果良好。
The closing resistor for 550 kV live tank circuit breaker is taken as the study object,the structure and working mechanism of the tripping device-the key device affecting the reliability of the circuit breaker is described,the cause and danger extent of the tripping device,in case of fault,is demonstrated.With the help of modern design methods and finite element simulation,the stress of each part of the tripping device during the working process is analyzed and optimization and improvement measures are proposed based on corresponding simulation calculation result.The safety factor of the product parts has been greatly improved by way of feedback verification of the result after optimization.At the same time,the corresponding test prototype is designed based on the simulation analysis and in accordance with the optimization result.Finally,the reliability and stability are verified by 5 000 times mechanical operation tests and perfect effected is obtained.
作者
李宏楼
张帆
孙龙勇
王向克
刘力
姚灿江
孟岩
晋涛
徐刚
王福亚
师丽芳
袁攀科
贾月
佟志鹏
陈午阳
LI Honglou;ZHANG Fan;SUN Longyong;WANG Xiangke;LIU Li;YAO Canjiang;MENG Yan;JIN Tao;XU Gang;WANG Fuya;SHI Lifang;YUAN Panke;JIA Yue;TONG Zhipeng;CEHN Wuyang(Pinggao Group Co.,Ltd.,Henan Pingdingshan 467001,China;State Grid Shanxi Electric Power Research Institute,Taiyuan 030001,China)
出处
《高压电器》
CAS
CSCD
北大核心
2021年第1期157-164,共8页
High Voltage Apparatus
基金
国家电网公司总部科技项目资助(550 kV滤波器组断路器关键技术研究及设备研制)。
关键词
合闸电阻
仿真计算
脱扣装置
可靠性
closing resistor
simulation calculation
tripping device
reliability
