Which among these is the least expensive protection for over current in low voltage system?
A) Rewirable fuse.
B) Isolator.
C) Circuit breaker.
D) Air breaker switch.
Correct Answer:
Verified
Q7: When using air blast circuit breaker, current
Q8: Which type of air is used in
Q9: What is the maximum current upto which
Q10: What is fusing factor?
A)The ratio of current
Q11: For a current upto 10A which material
Q13: Which among the following statement is true
Q14: How is the restriking voltage measured?
A)RMS value
B)Peak
Q15: What is the interrupting medium in the
Q16: Recovery voltage is the value of rms
Q17: Why is it difficult to interrupt a
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