The operating characteristic of a reactance relay is given by  , where  is the reactance calculated by the relay. Its operating characteristic in the admittance plane (G - B plane, where G and B denote conductance and susceptance, respectively, expressed in \(\scriptstyle \mho\)) is given by:

Match the items in List-I with the items in List-II and select the correct answer using the codes given below the lists

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

Voltage phasors at the two terminals of a transmission line of length 70 km have a magnitude of 1.0 per unit but are 180 degrees out of phase.  Assuming that the maximum load current in the line is 1/5th of minimum 3-phase fault current, which one of the following transmission line protection schemes will NOT pick up for this condition?

The transmission line distance protection relay having the property of being inherently directional is

Consider the problem of relay co-ordination for the distance relays R1 and R2 on adjacent lines of a transmission system (Figure). The Zone 1 and Zone 2 settings for both the relays are indicated on the diagram. Which of the following indicates the correct time setting for the Zone 2 of relays R1 and R2

In a 3-step distance protection, the reach of the three zones of the relay at the beginning of the first line typically extends up to

The plug setting of a negative sequence relay is 0.2A. The current transformer ratio is 5:1. The minimum value of line-to-line fault current for the operation of the relay is

Reactance relay is normally preferred for protection against

The distance relay with inherent directional property is known as ________________  relay.