【摘要】 为实现与直接试验的等效性,合成关合试验的电流源快速关合开关需要在试品开关预击穿后300μs内投上。针对这个要求,提出了基于真空触发开关的快速关合开关的方案。描述了其工作过程,并分析了电流转移的过程。通过PSCAD进行电流转移的仿真,总结了线路电阻与感应电感及真空间隙的电弧电压等因素对电流转移过程的影响,理论上指导较佳的线路设计。更多还原

【Abstract】 In order to achieve an equivalent performance with a direct test,the current source of a synthetic making test should be switched on within 300μs with a fast making switch.To achieve this,a type of fast making switch,based on triggered vacuum switch is proposed.The working process of the switch is described and the process of current shift is also analyzed.The current shift is simulated using PSCAD,and the effects on the current shift,such as the resistances of the(circuit,)the inductive reactions and the arc voltages across the vacuum gap,etc,are indicated,which theoretically can be used to design better circuit.更多还原