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Q#1 Power System Protection GATE EE 2008 MCQ +1 mark -0.33 marks

A two machine power system is shown below. 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 center 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 measured by the ground distance relay located at the terminal X of line XY will be given by

   

 

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Topic Questions Attempted Correct
Network Analysis 259 0 0
Signals and Systems 164 0 0
Control Systems 201 0 0
Analog Electronics 180 0 0
Digital Electronics 148 0 0
Electrical Machines 390 0 0
Power Electronics 237 0 0
Power Systems 343 0 0
EMFT EE 9 0 0
Measurement 152 0 0
Engineering Mathematics 225 0 0
General Aptitude 206 0 0