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Homework Help: Transformer question

  1. Mar 24, 2012 #1
    1. attached is the question i am trying to solve.

    I do not know how to do per unit questions.

    2. Part a) of the question ask to convert into per unit and then per phase equivalent circuit. I do not understand how to do it. Please guide.

    Also, how to calculate the bus1?

    3. I cannot attempt because I do not know how to... what etc the first step etc

    Attached Files:

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  2. jcsd
  3. Mar 27, 2012 #2
    Hi Pingpong
    does the book (or lecturer) provide you with an equivalent circuit model?

    if i remember rightly, per unit means all the component values normalised, and per phase means only consider one phase of the power lines. its been a while since i studied that.
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