MCCB分断过程的仿真与分析  

Simulation and Analysis of Breaking Process of MCCB

作　　者：李兴文[1] 陈德桂[1] 孙浩 

机构地区：[1]西安交通大学,陕西西安710049 [2]中能电力科技开发有限公司,北京101102

出　　处：《低压电器》2009年第7期10-15,19,共7页Low Voltage Apparatus

摘　　要：应用虚拟样机技术,首先建立了塑料外壳式断路器(MCCB)操作机构运动特性的仿真模型,并用实验验证了模型的正确性;然后耦合电路、电磁场和机械运动方程,考虑电动斥力的作用,分析了电弧电压、合闸相角、预期短路电流、机构开始动作时间及气动斥力对MCCB分断过程的影响。结果表明,提出的方法对MCCB的分析、设计及优化是有效的。With virtual prototype technology, the simulation model of operation mechanism moving characteristics of moulded case circuit breaker（MCCB） was built and the correctness of this model was verified by experiments. Then coupling the circuit, magnetic field and mechanical movement formula, considering the effect of repulsion force, the influence of arc voltage, closing phase angle, predictive short-circuit current, initial moving time of actuator and blow open force on breaking process of MCCB. Results show the proposed method is effective for analyzing and designing and optimizing MCCB.

关 键 词：分断特性 气动斥力 操作机构 

分 类 号：TM561[电气工程—电器]