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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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3.发明授权
公开(公告)号：EP2732256B1
公开(公告)日：2016-05-04
申请号：EP12723684.2
申请日：2012-05-25
CPC分类号： G01K13/00 , G01K1/02 , G01K7/42 , H01F27/402 , H02H7/042
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4.发明公开
公开(公告)号：EP2732256A2
公开(公告)日：2014-05-21
申请号：EP12723684.2
申请日：2012-05-25
IPC分类号： G01K7/42
CPC分类号： G01K13/00 , G01K1/02 , G01K7/42 , H01F27/402 , H02H7/042
摘要： The invention relates to a device for representing and displaying the coil temperature of an electrical power transformer and to an electrical circuit suitable therefor. The invention is based on the general concept of using the CT-signal current not only for supplying the heating resistor of a sensor, for example, but also for decoupling energy from the CT-signal current by transformation via an electronic circuit according to the invention in order to supply energy to the connected measurement devices, so that a separate energy source can thus be ultimately omitted. According to the invention, the primary coil of a transformer, hereinafter referred to as removal transformer, is inserted into the CT-signal current and the voltage sloping via the primary coil and secondary coil of the removal transformer is limited in that a triac triggered by two diodes connected in parallel short-circuits as soon as the corresponding half-cycle reaches a threshold value and does not open again until the next current zero-crossing of the CT-signal current.
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公开(公告)号：EP2729775A2
公开(公告)日：2014-05-14
申请号：EP12726041.2
申请日：2012-05-25
IPC分类号： G01K1/16
CPC分类号： G01K7/42 , G01K1/08 , G01K2007/422 , H01F27/402 , H01F2027/406
摘要： The invention relates to a thermometer, especially for determining the winding temperature of an electric power transformer. The invention is characterised in that, in a thermometer for determining the winding temperature of an electric power transformer, an electric temperature sensor, a mechanical temperature sensor and a heating element are arranged inside a coupling part formed from a heat-conductive material, and an insulating sleeve consisting of a thermally stable material is provided between an outer wall of the coupling part and an inner wall of the housing, the housing, the insulating sleeve and the coupling part forming a coaxial structure without leaving any air gaps such that thus definable heat transfers are generated between the individual components, namely the coupling part, the insulating sleeve and the tubular housing .
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