A synchronous motor draws 20 MW (power factor = 0.8 leading). The motor's terminal voltage is 12.8 kV. Determine the sub-transient current from the generator, motor, and fault when a three-phase fault occurs at the motor's terminal (see diagram below). Assume Sbase = 30 MVA & Vbase = 13.2 kV. (Hint: 1. calculate all per unit quantities, 2. calculate all internal voltages prior to the fault, and 3. solve the circuit during the fault). j0.20 Eg Of Synchronous Generator S = 30 MVA V = 13.2 kV X" = 0.20 pu + IL j0.10 m Vt Prior to fault x = 0.10 pu j0.20 Em line HO j0.20 Eg" Synchronous Motor S = 30 MVA V = 13.2 kV X" = 0.20 pu j0.10 During fault Imf j0.20 Em