Multiple Choice
The protection against over-voltage due to lightening is provided by
A) Use of surge diverters
B) Low tower footing resistance
C) Use of overhead ground wires
D) Any of the above.
Correct Answer:
Verified
Correct Answer:
Verified
Q7: The values of fault current depend on<br>A)Voltage
Q8: Merz-price protection is used on<br>A)Substations<br>B)Capacitor bank<br>C)Induction motor<br>D)Generators.
Q9: The tripping circuit is_<br>A)AC<br>B)DC<br>C)either AC or DC<br>D)None
Q10: Plug setting of a electromagnetic relay can
Q11: Which of the following are air-break switching
Q13: Which of the following is a conducting
Q14: Which relay is used for feeders?<br>A)MHO relay<br>B)Translay
Q15: the most efficient torque producing actuating structure
Q16: MHO relay is used for<br>A)Rectifiers<br>B)Circuit breakers<br>C)Transmission lines<br>D)Feeders.
Q17: The over-voltage surges in power systems may