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1.发明授权
公开(公告)号：EP1743346B1
公开(公告)日：2010-11-24
申请号：EP04742539.2
申请日：2004-04-19
申请人： ABB France
发明人： DONATI, Michel, Georges, Jean , LAGNOUX, Alain, René, Robert , CREVENAT, Vincent, André, Lucien
摘要： A device for protecting an electrical system against surge voltages, comprising one or more protection components (10) provided with means (20) for connecting same with said system and means (30) for disconnecting said component (10) from said system, characterised in that it comprises arc-breaking means (40) for preventing the generation of electric arcs between the disconnection means (30) and the connection means (20) when the disconnection means (30) is in an open state, wherein said arc-breaking means (40) consist of an insulating flap (41) capable of moving within the gap (11) and comprising a central portion (42) to be positioned between the disconnection (30) and connection (20) means, and side portions (43) shaped in such a way as to prevent the electric arc from bypassing the arc-breaking means (40). Electrical surge voltage protection devices are also described.
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2.发明授权
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3.发明公开
公开(公告)号：EP1792378A1
公开(公告)日：2007-06-06
申请号：EP05793501.7
申请日：2005-07-25
申请人： ABB France
摘要： The invention relates to a device for protecting an electrical installation (2) against overvoltages. The inventive device comprises: a main spark-gap (E1), and a pre-triggering circuit (10) which is connected to the main spark-gap (E1) such as to control the firing thereof in the event of an overvoltage. The invention is characterised in that the pre-triggering circuit (10) comprises at least one voltage-interrupting element (G) which is disposed so as, in the off state, to prevent current from passing through the pre-triggering circuit (10), such that, in the absence of an overvoltage, the leakage current consumed by the pre-triggering circuit (10) is essentially zero. The invention relates to overvoltage protection devices.
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