The ohimic value of impedance to be connected in the neutral to ground circuit of a 2000 kVA transformer with earth fault relay set to 40% with respect to 400 V side will be
A. 0.2 ohm
B. 2.0 ohm
C. 20 ohm
D. 200 ohms
Answer:A
The ohimic value of impedance to be connected in the neutral to ground circuit of a 2000 kVA transformer with earth fault relay set to 40% with respect to 400 V side will be
A. 0.2 ohm B. 2.0 ohm C. 20 ohm D. 200 ohms