Multiple Choice
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should
A) Have low contact resistance
B) Be clean and smooth
C) Be of sufficient size and proper shape
D) Have all above properties
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Which is the main relay for protecting
Q2: The relay used for feeder protection is<br>A)Under
Q4: To prevent mal operation of differentially connected
Q5: The single phasing relays are used for
Q6: In the case of transmission line protection,
Q7: To protect most of the electrical equipment
Q8: ........ Relays is preferred for phase fault
Q9: Zero sequence current is used for relaying
Q10: Admittance relay<br>A)Nondirectional relay<br>B)Directional relay<br>C)Differential relay<br>D)None of the
Q11: Where severe synchronising swing occur, the relay