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公开(公告)号：EP2539910A1
公开(公告)日：2013-01-02
申请号：EP10798975.8
申请日：2010-12-23
CPC分类号： H01H9/0044 , H01H9/541
摘要： The invention relates to a hybrid-type step switch comprising mechanical contacts for conducting current in a stationary mode and for pre-selecting the relevant winding tap, in addition to semiconductor switch units for switching the actual load. The step switch comprises a mechanical unit containing the mechanical contacts and an electronics unit containing the semiconductor switches; the two units are separated from one another by a feedthrough plate. The electronics unit is surrounded by an electrically conductive housing that acts as a shield and as a potential controller.
摘要翻译： 本发明涉及一种混合型步进开关，其除了用于切换实际负载的半导体开关单元之外，还包括用于以静止模式传导电流并用于预先选择相关绕组抽头的机械触点。 步进开关包括含有机械触点的机械单元和包含半导体开关的电子单元; 两个单元通过馈通板彼此分开。 电子单元被导电外壳包围，该外壳充当屏蔽层和电位控制器。
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公开(公告)号：EP2373912B1
公开(公告)日：2012-09-05
申请号：EP09778643.8
申请日：2009-09-22
发明人： HAEMEL, Kai , SCHLEPP, Klaus
CPC分类号： F16K17/04 , F16K24/04 , H01F27/14 , H01F2027/404
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公开(公告)号：EP2457244A1
公开(公告)日：2012-05-30
申请号：EP10718474.9
申请日：2010-04-21
发明人： HOEPFL, Klaus , WILHELM, Gregor , WREDE, Silke
CPC分类号： H01H3/3052 , H01H9/0027
摘要： The invention relates to an on-load tap changer having an energy storage device, by means of which an output shaft is rotatable in spurts. According to the invention, in addition to the actual energy storage spring or the actual energy storage springs, at least one further spring is provided, which absorbs/releases energy after the activation of the energy storage mechanism, whereby the torque curve can be optimised.
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公开(公告)号：EP2438450A1
公开(公告)日：2012-04-11
申请号：EP10716484.0
申请日：2010-04-21
发明人： ANNOWSKY, Rene , THIEDE, Andreas
CPC分类号： G01R31/1227 , G01R31/027
摘要： The present invention relates to a device for testing high-voltage equipment, particularly power transformers (15) or inductors. According to the invention, the required potential separation (11/1,11/2) for suppressing asymmetrical interferences is shifted to the input side (2) of the static frequency inverter (18,19,20), that is, to the grid side (4).
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公开(公告)号：EP2417613A1
公开(公告)日：2012-02-15
申请号：EP10704323.4
申请日：2010-02-06
CPC分类号： H01H9/0005 , H01F29/04 , H01H9/548 , H01H2009/544
摘要： The invention relates to an on-load tap changer comprising semiconductor switching elements for uninterrupted switching between fixed tap changer contacts which are electrically connected to winding taps of a tapped transformer. Each of the fixed tap changer contacts can be connected to a charge diverter either directly or, during switching, via the semiconductor switching elements that are connected therebetween. According to the invention, the charge diverter has fixed, divided diverting contact pieces in order for the semiconductor switching elements to be electrically isolated from the transformer winding during stationary operation.
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66.发明公开
公开(公告)号：EP2389723A2
公开(公告)日：2011-11-30
申请号：EP09777883.1
申请日：2009-08-14
发明人： KUGLER, Kurt , PROELSS, Helmut , VIERECK, Karsten
IPC分类号： H02P13/00
CPC分类号： H02P13/00 , H02J3/1878 , H02P13/06 , Y02E40/30
摘要： The invention relates to a method for parallel control of transformers having step switches. All voltage controllers are thereby connected to each other by means of a common data bus. An active current and reactive current are first determined for each step transformer connected in parallel, then the phase angle of an arising total current is determined from the sum thereof, and each circuit reactive current results in turn therefrom, from which ultimately the signed control deviation of each voltage regulator is derived separately for each step switch.
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公开(公告)号：EP2329508A1
公开(公告)日：2011-06-08
申请号：EP09777379.0
申请日：2009-07-23
发明人： BURGHAUSER, Armin , WREDE, Silke
IPC分类号： H01H9/00
CPC分类号： H01H9/0033 , H01H2009/0061
摘要： The invention relates to a manual drive for step-by-step operation, without any power, of a tap changer (1) on a tap-changing transformer. The manual drive has a position indication wheel (4) which is used not only, in conjunction with a pointer (15), for actual position indication, but at the same time as a component of mechanical final-position limiting (10, 11, 12). It can also furthermore be used (18) in a particularly advantageous manner as a component of electrical switching monitoring.
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公开(公告)号：EP2319059A1
公开(公告)日：2011-05-11
申请号：EP08785705.8
申请日：2008-08-27
IPC分类号： H01F29/04
CPC分类号： H01F29/04
摘要： The invention relates to a tap switch for uninterrupted changeover between two winding taps (tap n, tap n+1) of a tapped transformer, wherein each of the two winding taps is connected to the common outgoing load line via in each case a mechanical switch (Ds) and a series circuit which is arranged in series therewith and which is composed of two oppositely connected IGBTs (Ip, In). According to the invention, each IGBT is bridged by in each case a specially dimensioned varistor (Vp, Vn) connected in parallel therewith.
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公开(公告)号：EP2289081A1
公开(公告)日：2011-03-02
申请号：EP09757146.7
申请日：2009-04-07
IPC分类号： H01F27/14
CPC分类号： H01F27/14 , H01F2027/404 , H01H9/0044
摘要： The abstract relates to an arrangement of an oil-filled power transformer having an oil-filled stepping switch, wherein only a single oil expansion vessel is provided, this oil expansion vessel being connected both to the oil volume of the stepping switch and also to the transformer tank, which is likewise oil-filled, via corresponding flanges.
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公开(公告)号：EP2248401A2
公开(公告)日：2010-11-10
申请号：EP08872793.8
申请日：2008-12-10
发明人： BISGES, Michael
IPC分类号： H05K3/14
CPC分类号： H05K3/32 , H05K3/048 , H05K2201/10689 , H05K2203/0264 , H05K2203/095 , H05K2203/1344 , H05K2203/1469
摘要： The invention relates to a method for producing printed circuit boards comprising contacted components. Initially, the component that is to be contacted later is fixed to a substrate, subsequently, the negative structure of a metallic antenna structure that is to be applied is applied, prior to the entire substrate surface being coated by means of plasma coating comprising a metallic coating and then the negative structure including the metallic coating that is adherent thereto is removed from the substrate by means of a slug-puller or similar.
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