Answer to Question #262838 in Electrical Engineering for sandhya

Question

) A 100 MVA, 13.8 kV, 60 Hz, Y-connected 3-phase generator with Xd ’’=Xd ’=20% is connected to a 13.3/220 kV, 100 MVA, ∆-Y connected transformer and to the 3-phase load of 100 MVA 0.8 p.f. lagging is connected to the transformer secondary as shown in the figure. The leakage reactance of ∆-Y transformer is 10%. The L-L voltage at the load Page 5 of 5 terminals is 220 kV. A 3-phase short-circuit occurs at the load terminals. Find the generator transient current including load current.  

Answer 1

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