Multiple Choice
Differential relays are used for protection of equipments against
A) Internal faults
B) Over current
C) Reverse current
D) Reverse power
Correct Answer:
Verified
Correct Answer:
Verified
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
Q11: Threshold characteristics of a plain impedance relay
Q12: Impedance relay can be used for<br>A)Phase faults
Q13: On transient fault OC and impedance relay<br>A)Under
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
Q17: An impedance is relay is a<br>A)Voltage restrained