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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: Please advise on placement/alignment of paralleled identical isolation transformers posted by Christopher Witmer on May 18, 2009 at 06:53:45:
In my opinion, the best way is to maximize the distance between the two, and place the fields at 90 degrees to each other.
The way to do the latter, is to put one mounted on a side wall, and one on the "floor" wall.
In theory, one could deliberately couple them to create a common mode type of situation, BUT, I am on record recommending against this kind of choke configuration for filter inductors, and I feel even more strongly against using it for isolation transformers.
One thing you could do, that should not have any ill effects, and SHOULD reduce core nonlinearities, make sure you reverse wire one of them, that is, connect the input terminals to one of them one way, and then reverse it on the other unit. Of course, you will have to be very careful to ALSO reverse the output leads as well on the one with the reversed input terminals. In any case, you will have to maintain relative polarity through both devices in order to avoid having them fight each other and end up with zero volts output and a blown fuse/tripped breaker.
If none of this is clear, then I wouldn't advise that you parallel them in the first place.
Jon Risch
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Follow Ups
- RE: Please advise on placement/alignment of paralleled identical isolation transformers - Jon Risch 19:30:28 05/18/09 (0)
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