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  1. Which IEEE trip curve would produce the shortest trip time given the relay information below?
    Relay Pickup Current (A): 1000
    Relay TD Setting: 1
    Fault Current (A): 10000
    Your Answer: IEEE Moderately Inverse
    Correct Answer: IEEE Extremely Inverse
    Help: Inverse Time Overcurrent Relays and Curves Explained

As shown in the link in the Help section, IEEE Extremely Inverse has the slowest trip time. Moderately Inverse should be the correct answer.