摘要
操动机构的可靠性关系到断路器的分合闸可靠性,直接影响了电网的安全运行。弹簧操动机构由于其结构简单、可靠性高、功能完备等优点,广泛运用在126~252 kV断路器中。文中针对一起252 kV断路器弹簧断裂引起机构不停打压故障,通过现场拆解和实验室解体检测,分析故障的根本原因,提出相应的整改和预防措施,有助于提高同类型弹簧机构的运行可靠性。
Reliability of the operating mechanism is related to the reliable opening and closing operation of circuitbreaker and affects directly safe operation of power grid. Spring operating mechanism is used widely in 126 ~ 252 kVcircuit-breakers due to its such advantages as simple structure,high reliability and comprehensive functions. In viewof the continuous pumping of operating mechanism due to spring breakage of 252 k V circuit breaker,the primarycause of the fault is analyzed through disassembly at site and disassembly as well as testing at laboratory. The corre-sponding modification and prevention measures are proposed,which are helpful to improve the reliability of thesame type of spring operating mechanism.
作者
夏天
何宇航
叶建锋
李劲彬
李红兵
周金海
XIA Tian;HE Yuhang;YE Jianfeng;LI Jinbin;LI Hongbing;ZHOU Jinhai(State Grid Hubei Electric Power Research Institute,Wuhan 430077,China;State Grid Hubei Electric Power Co.,Ltd.,Wuhan 430077,China;Maintenance Company of State Grid Hubei Electric Power Co.,Ltd.,Wuhan 430074,China)
出处
《高压电器》
CAS
CSCD
北大核心
2022年第5期218-223,共6页
High Voltage Apparatus
关键词
断路器
弹簧机构
金属性能检测
circuit-breaker
spring operating mechanism
metal performance test