Multiple Choice
Threshold characteristics of a plain impedance relay in a complex Z plane is a
A) Circle passing through origin
B) Circle with the centre at the origin
C) Straight line passing through origin
D) Straight line offset from the origin
Correct Answer:
Verified
Correct Answer:
Verified
Q6: In an inverse definite minimum time, electromagnetic
Q7: Both voltage and current signals are required
Q8: The domains of power system where directional
Q9: Reactance relay is normally used for protection
Q10: The structure used in reactance relay is<br>A)Induction
Q12: Impedance relay can be used for<br>A)Phase faults
Q13: On transient fault OC and impedance relay<br>A)Under
Q14: Differential relays are used for protection of
Q15: The operating characteristics of the reactance relay
Q16: Differential relays are used for protection of<br>A)Feeders<br>B)Alternators<br>C)Transformers<br>D)All