基于KB0系列产品的结构,以其动态数学模型为理论基础,设计一套基于单片机和高速图像处理技术的新型控制与保护开关动态测试系统.该系统可测试保护开关的铁芯及触头的位移,并在空载条件下验证了位移测试的准确性.开展了新型控制与保护开关闭合过程的动态特性研究,在不同的线圈工作电压、工作频率和合闸相角工况下,分别测试开关的闭合动作时间.研究了新型控制与保护开关闭合过程产生的触头弹跳现象,分析了一次弹跳和二次弹跳产生的原因,探究其与铁芯和触头闭合末速度的内在联系机理;通过试验结果的数据统计与图表分析,综合考虑动作时间、触头弹跳、铁芯末速度和触头末速度等特性参数,得出最佳合闸相角在30°左右.%Based on the structure of KB0 series products,a new dynamic test system of control and protection switch based on single-chip microcomputer and high-speed image processing technology is designed on the basis of its dynamic mathematical model.The system can test the displacement of the core and the contact of the protective switch,and verify the accuracy of the displacement test under no-load condition.The dynamic characteristics of the new control and protection switch closing process are studied.The closing action time of the switch is tested under different working voltage,working frequency and closing phase angle.It has be done that studing on the contact bounce phenomenon model control and protection switch process,analyzing the reason of a bounce and two bounce generated,and exploring its core and closed at the end of the speed inner link mechanism.The optimum phase obtained is about 30 degrees through the test results of the data statistics and chart analysis,considering the time of action,contact bounce,terminal velocity and core at the end of the contact speed parameters.
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