What is the voltage when two phases are shorted?

Discussion in 'Homework Help' started by Mountain_cat, Jul 30, 2016.

  1. Mountain_cat

    Thread Starter New Member

    Jul 11, 2016
    If a generator has output lets say 2.3kV three phase, and two of it's phases are shorted, what will be the voltage on that terminal?

    I'm trying to find the fault current when line to line short happens, so I'm not sure what to use as the voltage on that line. My assumption is that if line A has 2300 angle(0) and line B has 2300 angle(120), then the voltages would just add and the voltage on the short would be 2300 angle(60).

    Is this right? What is the justification for it if it's right
  2. wayneh


    Sep 9, 2010
    It might help to consider what happens when the load is increased from infinite ohms to zero ohms.
  3. nsaspook

    AAC Fanatic!

    Aug 27, 2009