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首页> 外文会议>International Symposium on Discharges and Electrical Insulation in Vacuum >Experimental study of anode surface temperature after current zero for a range of current levels
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Experimental study of anode surface temperature after current zero for a range of current levels

机译：在一定电流水平下电流零后阳极表面温度的实验研究

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The main reason of breakdown after kA arc extinction is considered to be the overheating of anode surface during arc burning. The aim of this work is to experimentally determine the anode surface temperature distribution just after current zero for the range of arc currents from successfully interrupted levels up to the levels of guaranteed failure. The measurements were done by a high-speed video camera Phantom M310 equipped by a Carl Zeiss 100/2 macro lens. The anode surface temperature distribution was obtained by comparison of the results of anode surface filming and the results of calibrated band-lamp filming in identical conditions. The measurements were done for SSS CuCr 70/30 AMF electrodes for the currents up to the interruption limit.
机译：kA灭弧后击穿的主要原因被认为是电弧燃烧过程中阳极表面过热。这项工作的目的是通过实验确定从零到成功中断的水平到保证的故障电流范围内，电弧电流刚好在零电流之后的阳极表面温度分布。通过配备有卡尔·蔡司100/2微距镜头的高速摄像机Phantom M310进行测量。通过比较在相同条件下的阳极表面成膜结果和校准的带灯成膜结果，可获得阳极表面温度分布。对SSS CuCr 70/30 AMF电极进行了测量，直至达到中断极限。

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