断路器的选择

Selection of circuit breaker

断路器在低压配电中的应用越来越多,断路器的选择在很大程度上关系到系统供电的可靠性。文章详细介绍了断路器的分类以及断路器各参数的实际含义,提出不同场合断路器的选用原则,同时结合相应规范要求,举例说明不同电流值的设定原则,并探讨断路器的电流整定和正确的标注方法。

Circuit breakers were used more and more in low voltage distribution. The choice of circuit breaker was related to the reliability of power supply to a large extent. This paper introduced the classification of circuit breakers and the actual meanings of the parameters of the circuit breakers,put forward the selection principles of circuit breakers on different occasions,and illustrated the setting principles of different current values with the corresponding specification requirements,and discussed the current setting and correct marking methods of circuit breakers.