The bus impedance matrix for a three-bus power system is
[0.12 0.08 0.04]
Zbus = j [0.08 0.12 0.06] per unit
[0.04 0.06 0.08]

where subtransient reactances were used to compute Zbus. Prefault voltage is 1.0 per unit and prefault current is neglected. A three-phase short circuit occurs at Bus 3. Determine the subtransient fault current