低压配电线路保护选择性技术探讨

Discussion on the selective protection technology of low voltage distribution line

文章依据有关低压配电设计的规范性要求,对低压配电线路的保护和保护选择性的要求做了较为详细的阐述,对于应该如何选择低压保护电器的型号问题进行了分析,重点对配电低压线路的设计缺陷和漏洞等问题进行了深入的探究,找到了一些普遍化存在的问题症结,有的放矢地给出了可行性的方法,并对断路器的选择给出了较为简单和符合成本预算的方案。

According to the normative requirements of low voltage distribution design, this paper expounds in detail the requirements of protection and protection selectivity of line for low voltage distribution. This paper analyzes how to select the type of low voltage protective apparatus,and probes deeply into the design defects and loopholes of low voltage distribution lines, and finds out some common problems. The feasibility method is given, and the choice of circuit breaker is simple and in line with the cost budget.