A 500 M V A, 50 Hz, 3-phase turbo-generator produces power at 22 kV. Generator is Y-connected and its natural solidly grounded. Its sequance reactences are X1 = X2 = 0.15 and X = 0.05 pu. It is operating at rated voltage and disconnected from the rest of the system ( no load). The magnitude of the sub-transient line current for single line to ground fault at the generator terminal in pu will be
2.851
.3.333
6.667
8.553