本文论述了住宅电气设计中低压配电线路的短路保护、过负载保护及系统中上下级断路器的选择。
This paper discusses short - circuit protection of low - pressure electric wire in the design of residence electricity, over current protecting and the choice of breaker in the system.
系统地分析了低压配电线路保护的要求和实施方法，叙述了熔断器和断路器的选型，及其参数的整定；
The paper analyse the requirements and implementation ways for protection of LV distribution line. Type selection and parameter setting of fuse and circuit-breaker are introduced.
实验结果说明本课题设计的低压配电线路微机保护及测控装置达到了给定的技术指标，已经完成研制开发一种全新的低压配电线路微机保护及测控装置的任务。
Experiment result shows that the designed device has achieved anticipative target. And the development of a new, advanced low voltage distributed power line protection device is well completed.
应用推荐