optional questions

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 The use of the high speed of circuit breaker 

1. Reduces the short CB.

2. Improves the system stability 

3. Decrease system stability 

4. Increase the short circuit current

answer 2 (system stable bna rhe)

Keeping in the view the cost and overall effectiveness , the following CB is best suited for capacitor bank switching.

1. vacuum

2. air blast

3.SF6

4. oil

answer 1 (vacuum)

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