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    The selection of MCCB precautions
    The selection of MCCB precautions
    Time£º2015-6-4 20:51:34      Click£º221
    The selection of MCCB precautions
    1, breaking capacity
    Molded case circuit breaker interrupting capacity of two important indicators: rated service short-circuit breaking capacity ICs (according to the provisions of the experimental procedures required by the conditions, including circuit breaker to carry its rated current capability of breaking capacity) and rated ultimate short-circuit breaking capacity ICU (according to the provisions of the experimental procedures required by the conditions, including circuit breaker to carry its rated current capability of breaking capacity). The difference between the two is rated ultimate short-circuit breaking capacity refers to the circuit breaker in breaking the outlet end of the three-phase short-circuit current can be re run and subdivided off the short-circuit current a, as later whether can normal is switched on and off, not to be guaranteed. And the rated operation of short circuit breaking capacity is required in the case of the above conditions can still be normal.
    2, circuit breaker with the use of
    The choice of single circuit breaker directly affects the choice of the whole fitting line and the conductor section. Need to be based on the overall composition of the system circuit breaker. In order to achieve any point of the fault can be generated by the adjacent level circuit breakers to eliminate the fault. Http://www.dhen.cc/

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