Properties of intermediate-frequency vacuum arc in sinusoidal curved contact and butt contact
Properties of intermediate-frequency vacuum arc in sinusoidal curved contact and butt contact
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DOI：
10.1088/2058-6272/ab5b19
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发表时间：
2020-02
影响因子：
1.7
通讯作者：
Ziang Tong;Wu Jianwen-;W. Jin;Jun Chen
中科院分区：
文献类型：
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作者：
Ziang Tong;Wu Jianwen-;W. Jin;Jun Chen
本文提出了两种新的正弦曲面真空灭弧室触头结构，通过增加触头的表面积来提高灭弧室的灭弧性能。对中频（360-800 Hz）真空电弧进行了实验研究，并与相同触头直径（41 mm）、相同材料的对接触头进行了比较。通过分析电弧行为、电弧电压特性、电弧能量、电流分断能力、阳极触头烧蚀和电弧产物在3 mm间隙处的凝结，确定了它们真空电弧特性的差异。得到了它们的电弧能量与电流幅值和频率的关系。分析认为，直纹曲线触头具有电弧能量低、弧压噪声和弧压峰值低、阳极触头表面烧蚀轻、开断能力高等优点，具有很强的应用潜力。
In this report, two new contact structures of a vacuum interrupter with a sinusoidal curved surface are proposed to improve the capability by increasing the surface area. The experimental investigation of vacuum arc at intermediate frequency (360–800 Hz) was conducted and the results were compared with a butt contact with the same contact diameter (41 mm) and the same material. By analyzing the arc behavior, arc voltage characteristics, arc energy, current interrupting capacity, ablation of the anode contact and condensation of the arc products at a 3 mm gap, the differences in their vacuum arc characteristics were determined. The correlations of their arc energy with the amplitude and the frequency of the current were also achieved. Analysis suggests that the ruled curved contact has strong application potentiality because of its low arc energy, low arc voltage noise and arc voltage peak, light ablation on the surface of the anode contact and high interrupting capacity.