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公开(公告)号：EP1859331A1
公开(公告)日：2007-11-28
申请号：EP05815353.7
申请日：2005-11-22
CPC分类号： H01F27/12
摘要： The invention relates to a method for controlling devices for cooling an oil-filled power transformer with one or more cooling stages during which only the respective type of cooling of the transformer and the type of coolant for each existing cooling stage have to be input and by comparing with all non-volatile stored technically possible and meaningful combination possibilities, the corresponding characteristic quantities are determined for calculating the oil temperature or winding temperature.
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公开(公告)号：EP3770617A1
公开(公告)日：2021-01-27
申请号：EP19188511.0
申请日：2019-07-26
IPC分类号： G01R31/00
摘要： Es ist ein Verfahren und ein System (1) zur Überwachung mindestens eines induktiven Betriebsmittels (TR) offenbart. Das induktiven Betriebsmittel (TR) findet Einsatz in einem Energieversorgungsnetz. Dazu ist eine Überwachungseinheit (2) jedem induktiven Betriebsmittel zugeordnet. In einem Datenspeicher (4) der Überwachungseinheit (2) sind Echtzeitdaten (22) in Bezug auf den aktuellen Zustand des induktiven Betriebsmittels (TR) ablegbar. Eine Auswerteeinheit (6) der Überwachungseinheit (2) ist kommunikativ mit dem Datenspeicher (4) verbunden. Mit der Überwachungseinheit (2) wird eine Ausfallrate (FR) für das mindestens eine induktive Betriebsmittel (TR) in Abhängigkeit von einem Zustandsfaktor (CF) ermittelt.
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14.发明授权VORRICHTUNG UND VERFAHREN ZUR REGELUNG EINES LICHTBOGENOFENS IN DER ANFANGSPHASE EINES SCHMELZPROZESSES 有权用于在融化过程的初始阶段控制电弧闪光的装置和方法
公开(公告)号：EP2910086B1
公开(公告)日：2017-12-13
申请号：EP13776457.7
申请日：2013-10-09
CPC分类号： H05B7/148 , F27D19/00 , F27D2019/0037 , H05B7/144 , Y02P10/256 , Y02P10/259
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公开(公告)号：EP3071964A1
公开(公告)日：2016-09-28
申请号：EP14799442.0
申请日：2014-11-17
IPC分类号： G01N33/28
摘要： An apparatus (1) for detecting gas (4) in a high-voltage device (3) filled with an insulating medium (2) comprises an inlet (5) for introducing a carrier gas (16) and an outlet (6) for discharging a carrier gas (16); at least one gas sensor (12) for detecting a gas (4); a first pump (9) for conveying the carrier gas (16) in the apparatus (1); a membrane (13) which at least consists of at least one semipermeable material, is at least partially surrounded by the insulating medium (2) and is at least partially subjected to a flow of the carrier gas (16); a second pump (10) for conveying the carrier gas (16) into the apparatus (1) and for conveying the carrier gas (16) out of the apparatus (1); wherein there is no valve which can be used to convey the carrier gas (16) into the apparatus (1) or out of the apparatus (1).
摘要翻译： 一种用于检测填充有绝缘介质（2）的高压装置（3）中的气体（4）的装置（1），包括用于引入载气（16）的入口（5）和用于放电的出口（6） 载气（16）; 至少一个用于检测气体（4）的气体传感器（12）; 用于输送装置（1）中的载气（16）的第一泵（9）; 至少由至少一种半渗透性材料组成的膜（13）至少部分地被绝缘介质（2）包围并且至少部分地承受载气（16）的流动; 用于将载气（16）输送到设备（1）中并用于将载气（16）输送出设备（1）的第二泵（10）; 其中不存在可以用于将载气（16）输送到装置（1）中或从装置（1）中输出的阀。
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公开(公告)号：EP2837091B1
公开(公告)日：2016-03-09
申请号：EP13711852.7
申请日：2013-03-12
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公开(公告)号：EP2724357A1
公开(公告)日：2014-04-30
申请号：EP12720874.2
申请日：2012-05-14
发明人： HÄMEL, Kai , REHNELT, Ullrich , VIERECK, Karsten
CPC分类号： H01H33/555 , H01F27/402 , H01F2027/404 , H01H35/40 , H01H36/02
摘要： The invention relates to a Buchholz relay for monitoring the development of gas and the insulation liquid in liquid-filled high-voltage systems. Two floats which can be deflected and act on an electrical switching device are provided. Furthermore, a flow flap is provided which likewise acts on an electrical switching device. According to the invention, the electrical switching device comprises one or two immersion tubes in each of which separate magnetic switching tubes are provided. The immersion tubes extend in a perpendicular manner through the collection space of the Buchholz relay. Furthermore, a line is provided, the free end of said line ending in the Buchholz relay in the region of the flow flap, wherein the line can be subjected to the action of air or oil from the outside.
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公开(公告)号：EP2671128A2
公开(公告)日：2013-12-11
申请号：EP12701516.2
申请日：2012-01-30
摘要： The invention relates to a stepping switch for voltage control, comprising semiconductor switch elements on a variable transformer having associated regulating windings. The stepping switch has a modular design, wherein each module comprises a respective sub-winding of the regulating winding which can be activated or deactivated by semiconductor switch elements.
摘要翻译： 用于电压控制的步进开关技术领域本发明涉及一种用于电压控制的步进开关，包括位于具有相关调节绕组的可变变压器上的半导体开关元件 步进开关具有模块化设计，其中每个模块包括调节绕组的相应的子绕组，其可以通过半导体开关元件来启动或停用。
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19.发明授权
公开(公告)号：EP2389723B1
公开(公告)日：2013-06-12
申请号：EP09777883.1
申请日：2009-08-14
发明人： KUGLER, Kurt , PROELSS, Helmut , VIERECK, Karsten
CPC分类号： H02P13/00 , H02J3/1878 , H02P13/06 , Y02E40/30
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20.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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