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    Exam 4: Electrical Protection and Circuit Breakers
  5. Question
    Air Blast Circuit Breakers for 400 KV Power System Are
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Air Blast Circuit Breakers for 400 KV Power System Are

Question 5

Question 5

Multiple Choice

Air blast circuit breakers for 400 kV power system are designed to operate in


A) 100 microsecond
B) 50 millisecond
C) 0.5 sec
D) 0.1 sec

Correct Answer:

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