A round rotor generator delivers steady state power Pe = 0.5 p. u. to an infinite bus through a transmission line with Xl = 0.4 p. u. |Eg| = 1.8 p. u., V[infinity] = 1.00 p. u., H = 5 sec, Xd = Xq = 1.0 p. u. Neglect resistances. The generator experiences a bolted three phase fault at its terminals. Circuit breakers open to clear the fault, then successfully reclose six cycles (0.1 sec) later. Find the maximum value of the generator rotor angle δ. Neglect damping. Sketch the areas.