Q.

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)1/2 x rated service voltage x rated symmetrical current
D. (3)1/2x rated service voltage x rated symmetrical current.
Answer» D. (3)1/2x rated service voltage x rated symmetrical current.
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