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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Jon Risch: Signal transformer balanced power rating posted by cfraser on January 6, 2002 at 11:57:43:
The difference is in using the transformer primary windings in parallel and the transformer secondary windings in parallel, VS. using the transformer primary windings in series and the transformer secondary windings in series (to obtain the "center-tap"). None of the Signal units is intended to have the primary windings placed in series, this does put additional stress on the unit, both the windings and the core.For the big units I talk about in the DIY note, I spoke to the Signal engineering folks, and between us, determined what the de-rating should be for the wiring usage as I describe. Remember, ALL the ratings are for a 60 degree temperature rise above ambient! However, with other models or brands, the de-rating for balanced use via series windings connections should be assumed to be 1/2 that of the nominal, unless you can find out for sure otherwise. The MPI models from Signal that I call out in the note must be de-rated to half the current, as would any of the smaller SU or DU units.
Jon Risch
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Follow Ups
- Re: Jon Risch: Signal transformer balanced power rating - Jon Risch 16:51:09 01/06/02 (1)
- OK gotcha, and thanks. DU it is... [nt] - cfraser 17:41:44 01/06/02 (0)
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