Multiple Choice
What is the most important property which makes the SF6 very efficient medium for circuit breaking?
A) Is non toxic and non inflammable.
B) Has a high dielectric constant.
C) Has a high breakdown strength
D) Is highly electronegative gas
Correct Answer:
Verified
Correct Answer:
Verified
Q1: SF6 gas is imported in _.<br>A)Air cylinders<br>B)Gas
Q2: To limit current chopping in vacuum circuit
Q3: A thermal protection switch provides protection against
Q4: What is the major drawback of using
Q6: During arc extinction SF6 gas gets converted
Q7: What does protective relay provide?<br>A)Provide additional safety
Q8: What is the advantage of using oil
Q9: For which among the following the current
Q10: Why are the isolators used?<br>A)Break abnormal current<br>B)Making
Q11: What is the purpose of back up