Fundamental of circuit breakers & protective relays in control panels Quiz
hard
5 Questions
Question 1 of 5
Which of the following best describes the primary function of a protective relay in a power system?
Relays sense faults and signal breakers to isolate faulty sections.
Question 2 of 5
What is the main advantage of using a microprocessor-based protective relay over an electromechanical relay?
Microprocessors enable sophisticated algorithms and rapid fault clearance.
Question 3 of 5
What is the purpose of the 'trip coil' within a circuit breaker?
The trip coil energizes to mechanically release and open the breaker.
Question 4 of 5
In the context of circuit breakers, what does the term 'interrupting rating' signify?
Interrupting rating defines the breaker's ability to clear a fault.
Question 5 of 5
Which type of protection is commonly employed to detect overcurrent faults in a power system?
Overcurrent relays trip when current exceeds a predetermined level.
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