断路器选型与配电距离的探讨
Study on the Relationship Between the Length of Distribution Circuits and the Selection of Circuit-Breakers
孙立安 1吴逸凡1
作者信息
- 1. 同济大学建筑设计研究院(集团)有限公司,上海 200092
- 折叠
摘要
研究了配电距离和断路器选型的关系.分析实际工程项目中采用双拼电缆的配电回路的单相接地故障,探讨电缆配电距离、短路电流和断路器选型的可能性.分析在电缆配电回路中短路电流的不同情况,参考产品样本和国家规范的要求,给出了配电电缆回路断路器选型建议,可为设计优化提供理论依据.
Abstract
This paper studies the relationship between the length of distribution circuits and the selection of the circuit-breakers.By analyzing the single-phase grounding faults in distribution circuits using double splicing cables in practical projects,this paper explores the possibility of cable distribution distance,short-circuit current,and circuit breaker selection.By the analysis of the different situations of short-circuit current in distribution circuits,referring to product samples and national standards,suggestions for selecting distribution cable circuit breakers are provided,which can provide theoretical basis for the optimal design.
关键词
电气设计/配电电缆/断路器/灵敏度校验/短路电流计算Key words
electrical design/distribution cables/circuit-breaker/sensitivity verification/calculation of short circuit current引用本文复制引用
出版年
2024
NETL
NSTL
万方数据