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Shielding element for the use in medium voltage switchgears
专利权人:
ABB Schweiz AG
发明人:
Gentsch Dietmar,Shang Wenkai
申请号:
US201414444548
公开号:
US9490089(B2)
申请日:
2014.07.28
申请国别(地区):
美国
年份:
2016
代理人:
Taft Stettinius & Hollister LLP
摘要:
A shielding element is disclosed for use in medium voltage switchgears with vacuum interrupters with at least two contacts, which are movable along a switching path between closed and open contact positions, wherein the shielding element is positioned around the contact position region in the vacuum interrupter, wherein at least the inner surface of the shielding is applied with an implemented surface structure to form a topographic structure which is a rough or a structured surface. To enhance the energy absorbance behavior of the shielding, the implemented topographic structure can be formed such that by given constant or approximately constant volume (Vi) of the shielding body, the surface ratio of the treated surface (S2) with implemented surface structure and volume V2, and a untreated surface (S1) without topographic structure and volume V1 is greater than 1, so that this follows the condition: V1˜V2 and S2/S1>1.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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