Multiple Choice
An efficient and a well designed protective relaying should have
A) good selectivity and reliability
B) economy and simplicity
C) high speed and selectivity
D) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q15: Thermal circuit breaker has<br>A)delayed trip action<br>B)instantaneous trip
Q16: Which of the following medium is employed
Q17: Magnetic circuit breaker has _ trip action.<br>A)delayed<br>B)instantaneous<br>C)both
Q18: A transmission line is protected by<br>A)inrush protection<br>B)distance
Q19: Thermal overload relays are used to protect
Q20: A thermal protection switch can protect against<br>A)short-circuit<br>B)temperature<br>C)overload<br>D)over
Q21: Burden of a protective relay is the
Q23: On which of the following routine tests
Q24: A differential relay measures the vector difference
Q25: Arc in a circuit behaves as<br>A)a capackive