The switching behavior of gas-filled contactors was investigated using a model switch. High-speed imaging and spectroscopy provided information regarding the characteristics of the arc plasma. The impact of external magnetic fields, fill gas, fill pressure, and current amplitude was investigated. The most important factor, influencing the switching behavior for currents below 100 A, is provided by external magnetic fields, which increase arc voltage and arc instability considerably. The observed changes of the side-on profiles of the characteristic emission lines indicate changes in particle densities and arc temperature.

中文翻译：

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不同条件下充气模型直流接触器的开关行为


使用模型开关研究充气接触器的开关行为。高速成像和光谱学提供了有关电弧等离子体特性的信息。研究了外部磁场、填充气体、填充压力和电流幅度的影响。影响 100 A 以下电流开关行为的最重要因素是外部磁场，它会显着增加电弧电压和电弧不稳定性。观察到的特征发射线侧面轮廓的变化表明粒子密度和电弧温度的变化。