For the protection of lines against faults involving variable fault resistance, the preferred relaying scheme is a
A) Plain impedance relay
B) Directional over-current relay
C) Mho relay
D) Reactance relay
Correct Answer:
Verified
Q1: Where severe synchronising swing occur, the relay
Q3: For ground fault we prefer
A)Plain impedance relay
B)Directional
Q4: Admittance relay
A)Nondirectional relay
B)Directional relay
C)Differential relay
D)None of the
Q5: The relay used for feeder protection is
A)Under
Q6: Which relay is used to detect and
Q7: Which one of the following relay has
Q8: Zero sequence current is used for relaying
Q9: To prevent mal operation of differentially connected
Q10: How many relays are used to detect
Q11: Which is the main relay for protecting
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