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Hysteresis Coefficent Units

  1. Aug 11, 2016 #1
    I'm working with hysteresis losses in transformers at the moment, and I was wanting to know if there are units for the coefficient.

    Normally, I'd just rearrange the equation for units, below,

    h=ηB1.6f
    η=hf-1B-1.6
    so it would have units
    JsT-1.6

    However, given the power of 1.6, I'm not sure it still works like this. Does anyone know the units for it?
     
  2. jcsd
  3. Aug 13, 2016 #2
    Hysteresis loss [for instance] formula :

    Ph=lh*B^n*f Watt/m^3 where:

    B in Tesla=Wb/m^2

    n=1.6 to 1.8

    lh is a property of material about 500 for 4% silicon steel or 3000 for cast iron.

    f=50 or 60 Hz

    See [for instance]:

    https://www.physicsforums.com/file:///C:/Users/user/Downloads/MAGNETIC%20CIRCUITS.pdf [Broken]

    ch.1.8 Hysteresis loss
     
    Last edited by a moderator: May 8, 2017
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