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Transformadores, vatios y VA https://curiosoperoinutil.com/forum/viewtopic.php?f=2&t=4876	Página 1 de 2

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Autor:	Arsival [ Dom 26 Ago 2007, 21:04 ]
Asunto:	Transformadores, vatios y VA
Acudo a vosotros a ver si me podeis aclarar una duda eléctrica: ¿qué son exactamente los VA (voltio-amperios) de un transformador?. Porque desde el punto de vista de unidades es lo mismo que el vatio (W), o sea, potencia, pero no me acuerdo cuándo se habla de W y cuando de W·A. Aparentemente se habla de ellos como si fueran una caracter´sitica propia de cada transformador ¿es así, o depende del voltaje de entrada?. ¿Es la potencia máxima que puede entregar?, ¿o el consumo máximo que puede soportar teniendo en cuenta la potencia consumida por lo que conectemos a él más la consumida por él mismo?. ¿Qué pasa si lo forzamos a entregar más potentencia? ¿que peta? ¿o simplemente no la entrega?. ¿O no es nada de eso?

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Autor:	rmcantin [ Dom 26 Ago 2007, 21:49 ]
Asunto:

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Autor:	Arsival [ Dom 26 Ago 2007, 22:03 ]
Asunto:

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Autor:	rmcantin [ Dom 26 Ago 2007, 22:09 ]
Asunto:

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Autor:	Arsival [ Dom 26 Ago 2007, 22:25 ]
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Autor:	Chino Cudeiro [ Dom 26 Ago 2007, 22:50 ]
Asunto:

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Autor:	Carlos [ Dom 26 Ago 2007, 22:54 ]
Asunto:

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Autor:	Carlos [ Dom 26 Ago 2007, 22:59 ]
Asunto:

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Autor:	Chino Cudeiro [ Dom 26 Ago 2007, 23:20 ]
Asunto:	Ojito a detalle pues

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Autor:	Arsival [ Dom 26 Ago 2007, 23:43 ]
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Autor:	rmcantin [ Dom 26 Ago 2007, 23:52 ]
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Autor:	Chino Cudeiro [ Dom 26 Ago 2007, 23:58 ]
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Autor:	Arsival [ Lun 27 Ago 2007, 00:12 ]
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Autor:	Carlos [ Lun 27 Ago 2007, 00:12 ]
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Autor:	Chino Cudeiro [ Lun 27 Ago 2007, 00:22 ]
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Autor:	Carlos [ Lun 27 Ago 2007, 00:37 ]
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Autor:	Chino Cudeiro [ Lun 27 Ago 2007, 00:41 ]
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Autor:	Arsival [ Lun 27 Ago 2007, 16:11 ]
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Autor:	nuke baco [ Lun 27 Ago 2007, 20:12 ]
Asunto:
ciertamente un cos phi mayor que 1 no existe. Cuando se genera reactiva se le pone un apellido, de 0.99 inductivo se pasa a 1 y despues a 0.99 capacitivo todas las centrales generan reactiva por los consumos finales y de la red (formada por lineas (inductivas, consumen reactiva) y transformadores (tambien consumen reactiva) . Los consumos finales son principalmente motores (tambien inductivos) electricos en general. ahora a los eolicos, como tenemos unos cuantos MWh aportando al sistema, nos van a poner a hacer control de tension. Es decir, regular la generacion de reactiva de los parques. Atencion pregunta: ¿quien es el mayor consumidor electrico en total del sistema electrico en España ? la respuesta, a las 12 GMT+1, aunque seguro que lo sacais antes ehhh!!! que no vale ponerlo en google!!!!

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Autor:	nuke baco [ Lun 27 Ago 2007, 20:21 ]
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Autor:	Carlos [ Lun 27 Ago 2007, 20:57 ]
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Autor:	Chino Cudeiro [ Lun 27 Ago 2007, 23:33 ]
Asunto:
Gracias nuke , la verdad es que mi post no queda muy claro, especialmente lo del cos phi > 1 (eso es de penalty y expulsion)... a lo que iba, depende de tu tamaño si que puedes "incordiar" a la electrica, en mi caso particular, era una estacion de esqui y consumiamos el 38% del total del municipio... si que haciamos "pupita" ... pero tienes razon, en general somos hormiguitas contra el elefante... creo que quise decir demasiadas cosas en pocas frases... de todos modos, el dia que renueven los contadores por algunos que lo midan todo, no solo los Kw brutos, entonces estaremos pillados. por suerte, las electricas estan en otras guerras y no estan por apretarnos... más todavia.

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Autor:	nuke baco [ Mié 29 Ago 2007, 16:20 ]
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Autor:	Heimy [ Mié 29 Ago 2007, 16:24 ]
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Autor:	Carlos [ Mié 29 Ago 2007, 16:58 ]
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Autor:	Irremediable [ Mié 29 Ago 2007, 17:00 ]
Asunto:	Re: Transformadores, vatios y VA

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Autor:	nuke baco [ Mié 29 Ago 2007, 20:53 ]
Asunto:
Irremediable, pues si, son igualitos, salvo que estan inmersos en aceite, ademas del deposito de expansion. Esta criatura debe ser de mas de 600 MVA por el tamaño.

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Autor:	Chino Cudeiro [ Jue 30 Ago 2007, 22:53 ]
Asunto:
Nuke, esta historieta sucede en Andorra, la estación es Arcalis... ahora estamos con el circuitor a ver que le ponemos para equilibrar esto... Mañana conectamos un reductor de armonicos (filtro) a ver que tal! bonita foto!!

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Autor:	Carlos [ Jue 30 Ago 2007, 23:29 ]
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Autor:	Chino Cudeiro [ Jue 30 Ago 2007, 23:36 ]
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