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Descripción
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| Synchronous machines with brushless excitation have the disadvantage that the field winding is not accessible for the de-excitation of the machine. This means that, despite the proper operation of the protection system, the slow de-excitation time constant may produce severe damage in the event of an internal short circuit. A high-speed de-excitation system for these machines was developed, and this study presents the continuation of a previously published study. This study presents the design by computer simulation and the results of the first commissioning of this de-excitation system in a commercial 20 MVA hydro-generator. The de-excitation is achieved by inserting resistance in the field circuit, obtaining a dynamic response similar to that achieved in machines with static excitation. In this case, a non-linear discharge resistor was used, making the dynamic response even better. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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Iet Electric Power Applications |
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ISSN
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1751-8660 |
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Factor de impacto JCR
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1,307 |
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Información de impacto
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Datos JCR del año 2013 |
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Volumen
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9 |
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DOI
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10.1049/iet-epa.2014.0313 |
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Número de revista
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6 |
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Desde la página
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405 |
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Hasta la página
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411 |
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Mes
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SIN MES |
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Ranking
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