Q. 14 A two machine power system is shown below. The Transmission line XY has positive sequence impedance of 
and zero sequence impedance of 
An ‘a’ phase to ground fault with zero fault impedance occurs at the centre of the
transmission line. Bus voltage at X and line current from X to F for the phase‘a’, are given by 
Volts and
amperes, respectively. Then, the impedance
Volts and
amperes, respectively. Then, the impedancemeasured by the ground distance relay located at the terminal X of line XY will
be given by
Answer:(D)
Explanation:
