Vacuum Circuit Breakers - MCQs with answers
Vacuum Circuit Breakers - MCQs with answers Q1. To limit current chopping in vacuum circuit breakers, the contact material employed should have the properties of
a. Low conductivity and high vapour pressure.
b. Low conductivity and low vapour pressure.
c. High conductivity and high vapour pressure.
d. High conductivity and low vapour pressure.View Answer / Hide Answer
Q2. Keeping in view the cost and the overall effectiveness, which of the following circuit breaker is best suited for capacitor bank switching?
ANSWER: a. Low conductivity and high vapour pressure.
a. Vacuum circuit breaker
b. Air blast CB
d. Oil CBView Answer / Hide Answer
Q3. For rural electrification in India, which circuit breaker is generally used?
ANSWER: a. Vacuum circuit breaker
d. Air blastView Answer / Hide Answer