A 400 MVA, 22 kV synchronous generator is tested for OCC and SCC. The following data are obtained from these characteristics extrapolated where needed.
I_{f}=1120 A , \quad V_{O C}=22 kV , \quad I_{S C}=13.2 kAAt I_{f} corresponding to I_{SC} = I_{rated} it is found that V_{OC} (air-gap line) = 24.2 kV (line).
(a) Determine X_{s} (saturated) in ohms and in pu.
(b) Determine SCR.
(c) Determine X_{s} (unsaturated) and I_{f} corresponding to V_{OC} = 22.4 kV on air gap line.
(d) The generator when operating on no-load rated terminal voltage, find the value of the generator current if it is short circuited.