The positive-, negative-, and zero-sequence reactances of a 15-MVA, 11-kV, three-phase, wye- connected generator are 11 percent, 8 percent, and 3 percent, respectively. The neutral of the generator is...

Extracted text: The positive-, negative-, and zero-sequence reactances of a 15-MVA, 11-kV, three-phase, wye- connected generator are 11 percent, 8 percent, and 3 percent, respectively. The neutral of the generator is grounded, and the generator is excited to the rated voltage on open circuit. A line-to-ground fault occurs on phase a of the generator. Calculate the phase voltages and currents. Ans. 0V; 4.922/254.74° kV; 4.922/-74.74° kV; 10,746/-18° A; 0 A; 0 A