Publication: Sistema de monitorización continua de descargas parciales para trasformadores de alta potencia
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2012-06
Defense date
2012-06-27
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Abstract
La monitorización de transformadores de alta potencia se presenta como una tarea crucial dentro del mantenimiento de las subestaciones eléctricas. Además de pérdidas de suministro, los fallos en los transformadores de alta potencia llevan asociados una serie de costes que en ocasiones pueden llegar a dispararse. Mientras se encuentra en servicio, un transformador de alta potencia proporciona gran variedad de información entre la que podemos destacar la facilitada por las descargas parciales producidas en el propio aislante del transformador. Estas se traducen en emisiones acústicas que con el sistema de adquisición adecuado se pueden capturar para posteriores análisis. Uno de esos sistemas de adquisición es la Tarjeta de Adquisición PDA14 de Signatec. Esta tarea de monitorización se convierte en monitorización continua ofreciendo la posibilidad de interactuar de forma remota con el sistema de monitorización. La interacción remota, ya sea en entornos experimentales o en la monitorización continua de transformadores de potencia es posible gracias a avances tecnológicos como Java y en particular Java Enterprise Edition, que además proporciona los mecanismos necesarios para solucionar algunos de los inconvenientes derivados de los sistemas distribuidos, como por ejemplo, la seguridad. De esta forma, se ha desarrollado un Sistema de Monitorización Continua de Descargas Parciales para Transformadores de Alta Potencia que, gracias a sus funcionalidades, permite avanzar en la prevención y detección de fallos. Entre estas funcionalidades conviene destacar la capacidad de configurar la tarjeta de adquisición PDA14 de Signatec para almacenar, visualizar y descargar las emisiones acústicas generadas por las descargas parciales producidas en el aislamiento de un transformador en funcionamiento. _______________________________________________________________________________________________________________________
The monitoring of high power transformers is presented as a crucial task in the maintenance of electric substations. In addition to loss of supply, failures of high power transformers are associated with a series of costs that can sometimes skyrocket. While it is in service, a high power transformer provides a variety of information from which we can highlight the information provided by partial discharges produced in the transformer s insulation itself. These are translated into acoustic emissions that with the appropriate procurement system can be captured for later analysis. One of these acquisition systems is Signatec PDA14. This monitoring task turns into continuous monitoring offering the possibility to interact remotely with the monitoring system. Web based remote control, either in experimental environments or in the continuous monitoring of power transformers is made possible by technological advances among which we find the Java technology and above the Java Platform Enterprise Edition, which also provides the mechanisms needed to provide the security of distributed systems. In this way, a system has been developed for continuous monitoring of partial discharges for High Power Transformers that, thanks to its functionality, allows us to make progress in the prevention and detection of failures. Among these features it is important to emphasize the ability to configure Signatec PDA14 to store, view and download the acoustic emissions generated by partial discharges produced in the insulation of a transformer in operation.
The monitoring of high power transformers is presented as a crucial task in the maintenance of electric substations. In addition to loss of supply, failures of high power transformers are associated with a series of costs that can sometimes skyrocket. While it is in service, a high power transformer provides a variety of information from which we can highlight the information provided by partial discharges produced in the transformer s insulation itself. These are translated into acoustic emissions that with the appropriate procurement system can be captured for later analysis. One of these acquisition systems is Signatec PDA14. This monitoring task turns into continuous monitoring offering the possibility to interact remotely with the monitoring system. Web based remote control, either in experimental environments or in the continuous monitoring of power transformers is made possible by technological advances among which we find the Java technology and above the Java Platform Enterprise Edition, which also provides the mechanisms needed to provide the security of distributed systems. In this way, a system has been developed for continuous monitoring of partial discharges for High Power Transformers that, thanks to its functionality, allows us to make progress in the prevention and detection of failures. Among these features it is important to emphasize the ability to configure Signatec PDA14 to store, view and download the acoustic emissions generated by partial discharges produced in the insulation of a transformer in operation.
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Keywords
Electrónica de potencia, Transformadores de potencia, Monitorización continua, Emisiones acústicas, Descargas eléctricas