The breaking capacity of a circuit breaker in MVA (3 phase) is given by
A. rated service voltage x rated symmetrical current
B. 1.1 x rated service voltage x rated symmetrical current
C. √2 x rated service voltage x rated symmetrical current
D. √3 x rated service voltage x rated symmetrical current
Answer:D
The breaking capacity of a circuit breaker in MVA (3 phase) is given by
A. rated service voltage x rated symmetrical current B. 1.1 x rated service voltage x rated symmetrical current C. √2 x rated service voltage x rated symmetrical current D. √3 x rated service voltage x rated symmetrical current