Autotransformer Turn Ratio

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

  1. airplane100000

    Thread Starter Member

    Aug 2, 2016
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    [​IMG]

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

    Well-Known Member

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

    AAC Fanatic!

    Jun 22, 2012
    5,166
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    The resistance ratios are 1:28 roughly....
     
  4. airplane100000

    Thread Starter Member

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

    Well-Known Member

    Jun 4, 2014
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    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
    5,166
    775
    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
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    Thanks...
    You wanna buy it and send it to me?
     
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