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!

Transformer and Generator in Per Unit System

  1. Aug 15, 2009 #1
    1. The problem statement, all variables and given/known data

    A 3-phase generator rated 100 MVA, 13.2 kV, X = 20% is connected through a Δ/Y
    transformer to a transmission line whose series reactance is 40 ohms per phase.
    Assume that the base values in the line circuit are 200 MVA and 115 kV.
    Find the generator and transformer reactances in pu for the following cases:
    (i) The transformer is a 3-phase unit rated 100MVA, 13.8Δ/120Y kV, X = 8%.
    (ii) The transformer is composed of three single-phase units, each rated 35 MVA,
    13.8/69 kV, X = 8%.
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Discussions: Transformer and Generator in Per Unit System