1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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:

    • pic.JPG
      File size:
      44.9 KB
  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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook