6. Power and Control
Protection Systems — Quiz
Test your understanding of protection systems with 5 practice questions.
Practice Questions
Question 1
What is the primary function of a protective relay?
Question 2
In a simple single-phase system operating at 230 V, if the fault loop impedance is 0.5 Ω, what is the fault current?
Question 3
What does the interrupting rating of a circuit breaker indicate?
Question 4
For a current transformer (CT) with a ratio of 200:5, if the secondary current is 2.5 A, what is the primary current?
Question 5
Which type of electrical fault is most commonly encountered in power systems?