answered 2016-10-28 09:26:26 -0500
For in-line faults the dummy bus has number 999999.
Use ierr, cmpval = psspy.scbrn2(ibus, 999999, ickt, string) to get the fault current on the line from ibus to the dummy bus.
ierr, cmpval = psspy.scbrn2(ibus, 999999, ickt, string)