Transfer reactance Calculation in power system

Discussion in 'Homework Help' started by trytolearn, Jun 1, 2009.

  1. trytolearn

    Thread Starter Active Member

    Mar 1, 2008
    Hi all

    I am having a small problem with calcualtion of system transfer reactance when a fault occurs.


    Figure 1


    Figure 2

    Figure 1 has shown the system before the fault and Figure 2 has shown the systemduring the fault.

    I presume star/delta transformation is the key, am I correct?

    The solution is 3(Xs + Xt) + XL.

    Thanks very much
  2. mik3

    Senior Member

    Feb 4, 2008
    Try a delta-star transformation between XL and X1 and X2.