Multiple Choice
In an inverse definite minimum time, electromagnetic type over current relay, the minimum time feature is achieved because of
A) Saturation of the magnetic circuit
B) Proper mechanical design
C) Appropriate time delay element
D) Electromagnetic damping
Correct Answer:
Verified
Correct Answer:
Verified
Q1: In a biased differential relay the bias
Q2: A reactance relay is<br>A)Voltage restrained overcurrent relay<br>B)Voltage
Q3: Reactance relays are used for phase fault
Q4: Impedance relay may use<br>A)Balance beam structure<br>B)Induction cup
Q5: A differential relay response to<br>A)Algebraic difference of
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