railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Systems Circuit Breakers Ratings of Circuit Breakers

What is the equation for the calculation breaking capacity for a circuit breaker?

1
Breaking capacity = 2 × Rated symmetrical breaking current ×  Rated service voltage
2
Breaking capacity = 3 × Rated symmetrical breaking current ×  Rated service voltage
3
Breaking capacity = Rated symmetrical breaking current × (Rated service voltage) \( \sqrt3\)
4
Breaking capacity = Rated symmetrical breaking current x Rated service voltage \(\times \sqrt2\)
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