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标题: [求助]疑问 [打印本页]

作者: 小虫 时间: 2005-3-31 13:02
标题: [求助]疑问
请问高手：

EPCOS的
surge arresters 和 switching spark gaps 有什么区别？？

作者: 通天雷神 时间: 2005-3-31 14:55
你是专业英语考试啊还是怎么的？

作者: 通天雷神 时间: 2005-3-31 14:58
Surge arrester is the basis of insulation co-ordination for power equipment. It is used for limiting over voltage. SEPW has SiC valve type arresters and metal-oxide surge arresters(MOA).

switching spark gaps are characterized by a very steep current rise during breakdown. Making use of this effect , steep voltage or current pulses of a few microseconds duration can be generated because of the switching time below 50 nanoseconds and the exceptionally high peak current.

作者: 通天雷神 时间: 2005-3-31 14:58
再不清楚问那个叫wangj的。

作者: 小虫 时间: 2005-4-1 09:32
王工可否解释一下？

我看EPCOS的放电管样本上标着 SURGE ARRESTERS

那switching spark gaps 就是放电间隙了？

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