Q. 29 The positive negative and zero sequence impedances of a 125 MVA, three-phase, 15.5 kV, star-grounded,50 Hz generator are j 0.1pu , j 0.05 pu and j 0.01 pu respectively on the machine rating base. The machine is unloaded and working at the rated terminal voltage. If the grounding impedance of the generator is j 0.01 pu , then the magnitude of fault current for a b-phase to ground fault (in kA) is________ (up to 2 decimal places).
Answer:( 73.52)
Explanation:
