双断点塑壳断路器触头机构在极限短路分断能力试验中的振动性研究  

Study on Vibration of Contact Mechanism of Double Breakpoint Moulded Case Circuit Breaker in Limit Breaking Capacity Test

作　　者：曾谊 陈卢明 吴建生 李继丹 欧阳海军 童伟 ZENG Yi;CHEN Luming;WU Jiansheng;LI Jidan;OUYANG Haijun;TONG Wei(Jubang Group Co.,Ltd.,Yueqing 325600,China)

机构地区：[1]巨邦集团有限公司,浙江乐清325600

出　　处：《电器与能效管理技术》2022年第1期31-34,共4页Electrical & Energy Management Technology

摘　　要：针对双断点塑壳断路器在闭合过程中,动、静触头受到高强度冲击载荷或交变载荷产生触头振动时,使得动触头在接触碰撞瞬间产生弹跳的问题,提出了一种断路器触头机构。通过试验验证,新的断路器触头机构将极限短路分断能力从100 kA提高到150 kA,大大减小燃弧时间及通断时间,有效改善触头弹跳问题。In order to solve the problem that the moving and static contacts vibrate due to high-strength impact load or alternating load during the closing process of double breakpoint moulded case circuit breaker,a contact mechanism of circuit breaker is proposed.The test results show that the new circuit breaker contact mechanism increases the limit short-circuit breaking capacity from 100 kA to 150 kA,greatly reduces the arcing time and on-off time,and effectively improves the contact bounce problem.

关 键 词：触头机构 触头振动 极限短路分断能力 燃弧时间 通断时间 

分 类 号：TM561[电气工程—电器]