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Development of high resolution magnetic field measurements for switching arc diagnosis of low-voltage switchgear

机译:低压开关诊断开关电弧诊断的高分辨率磁场测量的开发

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摘要

A method of switching arc diagnosis by means of magnetic field measurement and iterative determination of current paths is presented. First results, show the feasibility of the proposed method. By measuring the magnetic field outside of the switching device with a high spatial and high temporal resolution magnetic sensor array, information is obtained on switching current behavior. A purpose built magnetic field sensor array is developed. Information on the arc and contact movement during switching is retrieved from magnetic field measurement by iterative 3D FEM field calculation.
机译:呈现了通过磁场测量和迭代确定电流路径切换电弧诊断的方法。第一个结果,显示了所提出的方法的可行性。通过用高空间和高时间分辨率磁传感器阵列测量开关装置外部的磁场,在开关电流行为上获得信息。开发了一个目的建立的磁场传感器阵列。通过迭代3D FEM场计算从磁场测量中检索有关切换过程中的电弧和接触运动的信息。

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