Hollow base for transformer coil.

Discussion in 'Physics' started by sweptr, May 29, 2014.

  1. sweptr

    Thread Starter New Member

    May 29, 2014
    I know that the base which you wind the coils around use to be solid.
    I would like to know if it is very inefficient to use a hollow steel beam.

    I belive there are quite a few arguments why it not should be a good idea.
    I also think that I know one or two of them,
    But I would like to hear about what you guys think about this.

    I ask this because I have free access to quite long square structural section which I would like to cut in parts to build a transformer..

  2. MaxHeadRoom


    Jul 18, 2013
    They didn't used to be solid, they still are!
    If 400Hz and lower it should be laminated, and also the amount of iron equivalent to the hollow core is required.