A switching-off process very similar to those in real high-voltage self-blast circuit-breakers is emulated in a model chamber to study the arc properties by optical emission spectroscopy. The arc is operated in a chamber filled with SF 6 between a pin-tulip contact system enclosed by a polytetrafluoroethylene nozzle. Transparent windows in the chamber wall and a slit in the nozzle enable an optical investigation of the arc cross section less than one millisecond before current zero. The side-on radiance of a fluorine atom lines has been measured with an imaging spectroscopic system. Considering rotational symmetry of the arc the corresponding radial emission coefficients have been determined by Abel inversion. The radial temperature profiles are calculated from the emission coefficients including pressure measurements and the corresponding plasma composition. In contrast to previous studies, a specific iterative approach is proposed to consider the optical thickness of...

中文翻译：

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发射光谱的迭代分析得出的断路器实验中的电弧温度

在模型室中模拟了与真实高压自爆断路器非常相似的关断过程，以通过光发射光谱法研究电弧特性。在由聚四氟乙烯喷嘴封闭的针郁金香接触系统之间，在充满SF 6的腔室内操作电弧。腔室壁上的透明窗口和喷嘴上的狭缝可在小于零电流之前不到一毫秒的时间内对电弧截面进行光学检查。氟原子线的侧面辐射已通过成像光谱系统进行了测量。考虑到电弧的旋转对称性，相应的径向发射系数已通过Abel反演确定。从包括压力测量值和相应的等离子体组成的发射系数计算出径向温度曲线。与以前的研究相比，提出了一种特定的迭代方法来考虑...的光学厚度。