For the power system given in Problem 7.14, a three-phase short circuit occurs at bus 4 ,
Question:
For the power system given in Problem 7.14, a three-phase short circuit occurs at bus 4 , where the prefault voltage is \(138 \mathrm{kV}\). Prefault load current is neglected. Determine
(a) the Thévenin equivalent at the fault,
(b) the subtransient fault current in per unit and in kA rms, and
(c) contributions to the fault from transformer T2 and from line 3-4.
Problem 7.14
Equipment ratings for the five-bus power system shown in Figure 7.15 are as follows:
A three-phase short circuit occurs at bus 5, where the prefault voltage is 15kV.
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Related Book For
Power System Analysis And Design
ISBN: 9781305632134
6th Edition
Authors: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
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