Question
A 460V, 50Hz, four-pole, Y-connected, three-phase synchronous generator is connected to a grid
Given that the synchronous reactance Xs is 1.26 and the armature resistance R can be neglected
During onload operation, it is observed that the generator is supplying 112kW to the grid and its power angle is 250. (a) Calculate the generator's speed of rotation in rpm and in rad/s (b) Calculate the induced internal voltage Ex
(c) Calculate the armature current I
(d) Calculate the power factor of the generator
(e) Calculate the total three-phase reactive power Q delivered by the generator to the grid.