1. 500 kW
2. 567 kW
3. 425 kW
4. 257 kW
425 kW
1. 0.0166 p.u
2. 0.05 p.u
3. 0.1 p.u.
4. 0.15 p.u
0.0166 p.u
1. 18.97A
2. 32.18 A
3. 27.97 A
4. 25 A
32.18 A
1. (50.65 + j14.32), (30.55 + j4.26)
2. (50.65 + j14.32), (30.55 - j4.26)
3. (50.65 - j14.32), (18.79 + j10)
4. (50.65 + j14.32), (18.79 - j10.0)
(50.65 + j14.32), (30.55 - j4.26)
1. 49 Hz
2. 48.5 Hz
3. 47.5 Hz
4. there is no grading for under frequency relays
there is no grading for under frequency relays
1. mho relay
2. reactance relay
3. impedance relay
4. all are equally affected
impedance relay
1. 215.56 kV
2. 208.56 kV
3. 186.0 kV
4. 100 kV
215.56 kV
1. blocks surge voltage appearing in a line
2. absorbs surge voltage appearing in a line
3. offers a low resistance path to the surge appearing in the line
4. returns surge back to the source
offers a low resistance path to the surge appearing in the line
1. short-circuit current becomes zero
2. post-fault transfer impedance attains a value higher than that during the fault
3. ordinate of the post-fault power-angle characteristic is higher than that of during fault characteristic
4. voltage behind the transient reactance increases to a higher value
post-fault transfer impedance attains a value higher than that during the fault
1. high impedance to carrier frequency but low impedance to power frequency
2. low impedance to both carrier and power frequency
3. high impedance to both carrier and power frequency
4. low impedance to carrier frequency but high impedance to power frequency
high impedance to both carrier and power frequency