The operating characteristics of a reactance relay in the complex impedance plane is a 

  • ACircle with its origin at the centre of the R-X plane.
  • BCircle passing through the origin.
  • CStraight line passing through the origin.
  • DStraight line parallel to the X-axis. 
Correct Answer : (D)

Straight line parallel to the X-axis. 

Hints :

The most serious consequence of a major uncleared short-circuit fault could be


Which of the following results in a symmetrical fault?

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