A salient pole generator has direct axis synchronous reactance Xd= 0.9p. u. and quadrature axis synchronous reactance Xq= 0.7p. u. When the generator is open circuited, a field current of 50 A produces a terminal voltage of 1.0 per unit. If field current is 60 A, and the generator is supplying 1.0 per unit real power to an infinite bus with |V| = 1.0V p. u., find the power factorat which the generator is operating.