Measurements and analysis of temperature rise at electrodes of a vacuum interrupter for high current applications
Measurements and analysis of temperature rise at electrodes of a vacuum interrupter for high current applications
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高电流应用真空灭弧室电极温升的测量和分析
DOI：
10.1109/isdeiv.2002.1027398
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. Matsukawa
中科院分区：
文献类型：
--
作者：
Y. Yamano;S. Kobayashi;M. Matsukawa
在核聚变研究领域，大型超导线圈的保护需要大电流开关技术。测量了触头的温升和沿电流馈电电极的温度分布。触头直径为25 mm，试验材料为不同混合比的铜铬合金。此外，还研究了热管的影响。测量表明，安装了热管的情况下，在2000 A的电流传导试验120min后，接触处的温度达到了130℃左右，而没有安装热管的情况下，触点温度达到了185℃/spl℃。
High current switching technology is required for protection of large superconducting coil in the field of nuclear fusion research. The temperature rise of the contacts and temperature distribution along the current feeding electrodes were measured. The contact diameter was 25 mm, and the tested material was Cu-Cr with different mixing ratios. Effect of a heat pipe was investigated as well. Measurements revealed that for the heat pipe installed case the temperature at the contact reached about 130/spl deg/C after the current conducting test of 2000 A for 120 min, while for the no heat pipe case the temperature reached 185/spl deg/C.