Vacuum Arc

Vacuum Arc
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真空电弧

DOI:
10.1049/pbpo018e_ch2
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发表时间:
2018
期刊:
The Vacuum Interrupter
影响因子:
--
通讯作者:
A. Greenwood
A. Greenwood
中科院分区:
--
文献类型:
--
作者:
A. Greenwood

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由于真空电弧是真空灭弧室中的关键元件,因此对其结构和行为的一些知识对于理解真空开关设备的操作是必不可少的。真空电弧这个名称确实不正确,事实上,它是一个矛盾。正如Ecker指出的那样,“如果有真空就没有电弧,如果有电弧就没有真空”。更确切的名称是金属蒸气电弧,因为当载流触头在真空中分离时形成的电弧在触头的金属蒸气中“燃烧”。真空电弧这个名称现在是如此普遍,如此一致地被接受,以至于我在本书中使用它作为金属蒸汽电弧的意思。
Since the vacuum arc is the key element in the vacuum interrupter, some knowledge of its structure and behaviour is essential to understanding the operation of vacuum switchgear. The name vacuum arc is really incorrect, indeed, it is a contradiction. As Ecker points out 'If there is a vacuum there is no arc, and if there is an arc there is no vacuum'. A more exact name would be metal vapour arc, since the arc which forms when current-carrying contacts separate in a vacuum 'burns' in the metal vapour of the contacts. The name vacuum arc is now so pervasive and so uniformly accepted that I use it throughout this book as meaning a metal vapour arc.