Autotransformer Turn Ratio

Discussion in 'Power Electronics' started by airplane100000, Sep 7, 2016.

  1. airplane100000

    Thread Starter Member

    Aug 2, 2016
    68
    3
    [​IMG]

    What is the turn ratio of this component (1-2:2-3)?
    Is it 8.7? - 1/76 = (1/n)^2
     
  2. AlbertHall

    Distinguished Member

    Jun 4, 2014
    4,220
    959
    That will be a reasonably close approximation. Note that the inductances have a 10% tolerance.
     
  3. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    The resistance ratios are 1:28 roughly....
     
  4. airplane100000

    Thread Starter Member

    Aug 2, 2016
    68
    3
    Yes...
    So which is it?
     
  5. AlbertHall

    Distinguished Member

    Jun 4, 2014
    4,220
    959
    I would expect the inductance ratios to be the better estimate. The resistances depend on the wire diameter used whereas the inductance doesn't.
     
  6. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    Well i would input a low voltage ac into pins 2-3 and measure it on 1-2 to see the difference in ratios.
     
  7. airplane100000

    Thread Starter Member

    Aug 2, 2016
    68
    3
    Thanks...
    You wanna buy it and send it to me?
     
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