I have an application for 2 no. 50VA toroidal transformers that will be used as a power supply running off 240V mains. This will be a linear supply in the traditional sense.
But. I am considering mounting the transformers externally to any physical enclosure. It will kinda be glued onto the side of a metal support lattice. It will then be surrounded by conductive wire mesh of various types. Imagine a toroidal transformer sat snugly in the middle of a bird's nest. The nest will be coiled aluminium and steel wires of random lengths and thicknesses. Some might be the thickness /texture of wire wool. Some like coat hangers, maybe some 6mm diameter steel and a few 25mm * 25mm * 1.6mm aluminium angles. Some may be 50mm long and some 500mm long. This can all be explained by the term "Functional Art."
My concern is secondary inductance, heating, fire and possibly death. How can this be made to work satisfactorily? I'm fully prepared to accept that this might not be possible within a domestic budget, but I'm not looking for comments stating that this is a bad idea. I'm looking for a good engineering effort to enable this, but will abandon in extremis.
My sense of it is that this is very possible as long as none of the nest metal work forms a full loop though the middle of the torroid. So loops around the perimeter might be okay? I know about not shorting the top and bottom of the fixing bolts.
A side question is: if the torroids cannot be mounted within the wire nest, how far away might they have to be?