中压断路器触头系统的三维动态测试  

Three-dimensional dynamic test for the contact system of medium voltage circuit breaker

作　　者：邱才元 许雄[1] 刘向军[1] 

机构地区：[1]福州大学电气工程与自动化学院,福建福州350116

出　　处：《中国测试》2016年第8期33-38,共6页China Measurement & Test

基　　金：福建省自然科学基金项目(2013J01177)

摘　　要：目前对断路器触头的动态测试主要在一维和二维的基础上,只能单一反映断路器触头在主运动方向上的动态过程。为还原断路器触头系统的三维动作过程,利用一台高速摄像机与两面呈一定角度摆放的平面镜,设计基于虚拟双目视觉的三维测试系统,对ZN86A(VEB)-12型中压真空断路器的触头运动进行动态测试。通过特征点提取、立体匹配及三维重建获得触头的三维运动特性曲线,对三相触头运动过程进行分析。结果表明被测断路器触头在分合闸过程中存在左右和前后偏移运动且三相触头的偏移运动存在差异。三维测试结果可为断路器的优化设计和装配提供依据。The contact movement of the circuit breaker is a process that occurs in three-dimensional space. In the past,the dynamic tests of circuit breaker contact mainly focus on one or two dimension test, which only reflects dynamic process in the main movement direction of circuit breaker contact. In order to restore the three-dimensional movement of circuit breaker contact system, a three-dimensional test system based on virtual binocular vision is designed. It consists of a high speed camera and two plane mirrors with certain angle. The dynamic test of the contact movement of the medium voltage vacuum circuit breaker ZN86A （VEB）-12 is carried out. By extracting feature points, stereo matching and 3D reconstruction, the movement characteristic curves of the contacts are obtained and the movement processes of three phase contacts are analyzed. The results show that the left-right and front-back offset motion of the contacts are found during the on-off process of the tested circuit breaker and the offset motion of three phase contacts differs from each other. The three-dimensional test results will provide basis for the optimum design and assembling for the circuit breaker.

关 键 词：中压断路器 触头系统 动态特性 三维测试 

分 类 号：TM561[电气工程—电器]