State of water vapour in SF/sub 6/ and several kinds of gases and its effect on partial discharge

T. Watabe, S. Itahashi, H. Mitsui, M. Sone
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引用次数: 1

Abstract

State of water vapor in SF/sub 6/ is same as that in vacuum, but state of water vapor in CO/sub 2/ is quite different from in vacuum. State of water vapour in SF/sub 6/ does not change even though negative DC, positive DC and AC partial discharge occurs. Water cluster which disturbs partial discharge phenomena is not formed. Comparing the relation between area intensity and partial discharge inception voltage in all cases, partial discharge inception voltage is influenced by the amount of water vapour. However, these tendencies are different from the kinds of discharge and gases.
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SF/sub / 6和几种气体中水蒸气的状态及其对部分排放的影响
SF/sub - 6/中的水蒸气状态与真空中相同,但CO/sub - 2/中的水蒸气状态与真空中有很大不同。即使发生负直流、正直流和交流部分放电,SF/sub / 6中的水蒸气状态也不会发生变化。不形成干扰局部放电现象的水团。比较各工况下面积强度与局部放电起始电压的关系可知,局部放电起始电压受水蒸气量的影响。然而,这些趋势不同于排放和气体的种类。
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