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.
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.
摘要:
The invention relates to a method for producing a coil (140) integrated in a substrate (100), comprising the following steps: producing a cavity in the substrate, which cavity has an open side, which interrupts a surface of the substrate, introducing a paste having ferromagnetic particles into the cavity in order to produce a coil core, closing the cavity by applying a cover layer in order to bridge the interruption of the surface of the substrate, introducing first winding segments of the coil which are perpendicular to the surface, wherein several or all of the first winding segments extend through the coil core located in the cavity, and applying second winding segments to the surfaces of the substrate, wherein the second winding segments contact the first winding segments in order to realize the windings of the coil.
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 (Tliq), an electrical power transformed (Pel), 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:
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:
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:
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.