engineering recuitment MPPGCL JE 2024 Mock Test Power Systems Circuit Breakers Ratings of Circuit Breakers
The symmetrical breaking capacity of a circuit breaker is determined as:
1
√3 × rated symmetrical breaking current × rated service voltage
2
(1/√3)× rated symmetrical breaking current × rated service voltage
3
3 × rated symmetrical breaking current × rated service voltage
4
Rated symmetrical breaking current × service voltage