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Question
Q1. A) Describe the circuit breaker for an A.C. generator using a sketch to show how arcing is controlled. (6)
(B) Explain the sequence of events that might occur if the breaker opens on a short circuit and state the check you would require following such event. (5)
(C) Give a safe procedure to follow should a main circuit breaker fail to open under fault Condition. (5)
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