1.

The symmetrical breaking capacity of a circuit breaker is determined as:

A. √3 × rated symmetrical breaking current × rated service voltage
B. (1/√3)× rated symmetrical breaking current × rated service voltage
C. 3 × rated symmetrical breaking current × rated service voltage
D. Rated symmetrical breaking current × service voltage
Answer» B. (1/√3)× rated symmetrical breaking current × rated service voltage


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