METHOD OF OPERATING A TRANSFORMER AND APPARATUS FOR A TRANSFORMER

    公开(公告)号:EP3396688A1

    公开(公告)日:2018-10-31

    申请号:EP17168820.3

    申请日:2017-04-28

    申请人: ABB Schweiz AG

    IPC分类号: H01F27/40

    摘要: The present disclosure provides a method of operating a transformer (200), wherein the transformer (200) generates heat when being operated, and wherein the transformer (200) includes a cooling unit (110) for forced cooling of the transformer (200). The method includes generating by the cooling unit a flow (150) of a coolant along a cooling path (170) for forced cooling of the transformer (200), measuring a true power value supplied to the cooling unit (110), and comparing the detected true power value with a predetermined true power threshold value.

    PREDICTING THE OIL TEMPERATURE OF A TRANSFORMER
    2.
    发明公开
    PREDICTING THE OIL TEMPERATURE OF A TRANSFORMER 审中-公开
    预测变压器油温升高的

    公开(公告)号:EP2941674A2

    公开(公告)日:2015-11-11

    申请号:EP13802783.4

    申请日:2013-11-19

    申请人: ABB Technology AG

    IPC分类号: G05B13/02 H01F27/40

    摘要: Method and system for predicting an oil temperature of a transformer for a desired load and/or predicting a load that a transformer can support for a desired time. A machine learning algorithm is developed using historical data of a transformer. After the algorithm is developed, historical data corresponding to the transformer are input into the algorithm to develop a profile of the transformer describing how the temperature of oil within the transformer is expected to change as a function of a desired load. Using the profile, the of temperature of the transformer is predicted for a desired load. In this way, a prediction is made as to whether and/or for how long a transformer may support a desired load before the oil temperature reaches a specified threshold and/or before the transformer fails due to the load.

    Traction transformer and method for monitoring an operating status of a traction transformer
    6.
    发明公开
    Traction transformer and method for monitoring an operating status of a traction transformer 审中-公开
    Fahrtransformator und Verfahren zumÜberwachendes Betriebszustandes des Fahrtransformators

    公开(公告)号:EP1470948A1

    公开(公告)日:2004-10-27

    申请号:EP03405281.1

    申请日:2003-04-22

    申请人: ABB Sécheron SA

    IPC分类号: B60L9/08

    摘要: The present invention is concerned with a traction transformer with an interface unit (5) comprising dedicated processor means (50) for monitoring an operating status of the transformer without unduly transmitting data to a train control system. Operating parameters such as a temperature of a cooling liquid (T liq ), an electrical power transformed (P el ), an ambient temperature or a level of the cooling liquid are measured by sensors (70, 71) and transmitted to the processor means (50). A present or future operating status is deduced from said parameters and operating conditions (increase in cooling effort, reduction of the load) are controlled in response thereto.

    摘要翻译: 牵引变压器包括具有基于操作参数监视牵引变压器的操作状态的处理器(50)的接口单元(5)。 接口单元还包括控制器接口(52)和传感器接口模块(54)。 还包括用于监视牵引变压器的操作状态的方法的独立权利要求。

    High voltage transformer
    7.
    发明公开
    High voltage transformer 审中-公开
    高压变压器

    公开(公告)号:EP1441374A1

    公开(公告)日:2004-07-28

    申请号:EP03253674.0

    申请日:2003-06-11

    IPC分类号: H01F27/40 H01H37/04 H05B6/66

    摘要: A high voltage transformer includes a fastening to fixedly attach a temperature sensor (40) to a core (10). Accordingly, the present invention provides the high voltage transformer in which the temperature sensor (40) is fixedly attached to the core (10), thereby preventing a shifting of a position of the temperature sensor (40).

    摘要翻译: 高压变压器包括用于将温度传感器(40)固定地附接到芯(10)的紧固件。 因此,本发明提供了一种高压变压器,其中温度传感器(40)固定地连接到芯部(10),由此防止温度传感器(40)的位置偏移。

    Dispositif de protection pour transformateur électrique
    10.
    发明公开
    Dispositif de protection pour transformateur électrique 失效
    Schutzeinrichtungfürelektrischen变压器

    公开(公告)号:EP0756295A1

    公开(公告)日:1997-01-29

    申请号:EP96420246.9

    申请日:1996-07-22

    申请人: IDEF SYSTEMES

    IPC分类号: H01F27/40 H01H36/02

    摘要: Le dispositif selon l'invention comprend un tube plongeur (1) adapté pour pénétrer dans l'orifice supérieur d'adaptation (7) d'un carter (6) de transformateur ou d'inductance noyé dans un diélectrique liquide. Le tube plongeur (1) est tenu par une embase (3) surmontée d'une partie intermédiaire tubulaire transparente (17) et d'un boîtier supérieur (15). Un capteur de position (45) à lame flexible, logé dans le tube plongeur (1), est sensible à la position d'un flotteur (22) portant au moins un aimant (23) et coulissant sur le tube plongeur (1) dans la partie intermédiaire tubulaire transparente (17). En position normale, l'aimant (23) est autour du détecteur (45) à l'état de travail. Des capteurs de température (25, 26, 27) sont logés en partie inférieure (2) du tube plongeur (1). Un capteur de pression (28) reçoit la pression à l'intérieur du carter (6). Les capteurs de pression, de position et de température constituent des contacts secs ne nécessitant aucune alimentation extérieure. Le dispositif permet ainsi de commander la coupure d'alimentation d'un transformateur ou d'une inductance en cas d'élévation anormale de température ou de pression ou de baisse de niveau de diélectrique liquide.

    摘要翻译: 保护器包括具有孔(7)的壳体(6),用于容纳具有用于液体的中心管(4)的基部(3)。 管(1)在其下端(2)处封闭,并在其开口的上端(16)处密封到壳体(15)。 透明管(17)允许其内容物可见并且在壳体和基座之间形成密封连接。 在透明部分中容纳有在浮子(22)中对磁体(23)敏感的柔性条(45)。 温度传感器(25,26)在管的下端形成接触,并连接到壳体中的输出端子(34,35)。 压力传感器(28)容纳在壳体中并且物理地连接到透明管的内部并电连接到输出端子(31)。