Transformer secondary

Discussion in 'Homework Help' started by bwd111, Aug 15, 2013.

  1. bwd111

    Thread Starter Member

    Jul 24, 2013
    117
    1
    Also could some one go over this calc and why I got this answer wrong as well. 120 v ac primary and turns ration of 5:1 what is secondary voltage. my answer is 600 vac. I multiplied the primary voltage by the turns ratio

    120*5 = 600 v ac
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,179
    1,800
    Vp : Vs :: Np : Ns

    Because the primary has 5 turns for each turn of the secondary it is a step-down transformer.
    120 : x :: 5 : 1
    Read this as, 120 is to x as 5 is to 1

    In the above ratio and proportion statement x must be 24.
     
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  3. LDC3

    Active Member

    Apr 27, 2013
    920
    160
    Start at the beginning and state the relation between voltage and number of turns on the primary and secondary so I can see how you did your calculations.
     
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  4. bwd111

    Thread Starter Member

    Jul 24, 2013
    117
    1
    I forgot to divide both sides by 5 120/5=24 V AC
     
  5. jegues

    Well-Known Member

    Sep 13, 2010
    735
    43
    \frac{120}{x} = \frac{5}{1}

    \Rightarrow x = \frac{120*1}{5} = 24
     
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