(25 points) An unloaded generator is synchronized to an infinite bus with iF = 920A as shown in the figure. a) PG is increased to PG = 0.5 pu while

Based on unloaded generator synchronization.

(25 points) An unloaded generator is synchronized to an infinite bus with iF = 920A as shown in thefigure.a) PG is increased to PG = 0.5 pu while ip is heldconstant at 920A. Find the complex powerZ = j0.6 pu SInfsupplied to the infinite bus Sinf in pu. Is thef = 60 Hzgenerator over- or under-excited?Xs = 0.2 pub) With PG = 0.5 pu from part (a), iF increases tor= 0aVo= 1.0/001470A. Find Sinf in pu. Is the generatorover- or under-excited?