断路器后备保护和大短路电流下的上下级选择性研究
Research on the Backup Protection and Selectivity of Upper Circuit Breaker and Lower Circuit Breaker in Case of High Short-circuit Current
陈科1
作者信息
- 1. 施耐德电气(中国)有限公司,江苏省无锡市 214000
- 折叠
摘要
引入电流三区段概念,主要分析在选择性极限电流Is超过上级断路器短路保护阈值时的上下级选择性问题,并就实际工程应用给出相关建议.
Abstract
The concept of current three-section is introduced,the selectivity of upper circuit breaker and lower circuit breaker when the selectivity-limit current Is exceeds the threshold for short-circuit protection of the upper circuit breaker is analyzed,and relevant suggestions for practical engineering application are proposed.
关键词
断路器串联回路/选择性/电流三区段/选择性极限电流/选择性配合表/断路器极限分断能力/后备保护/保护配合Key words
series circuit of circuit breaker/selectivity/current three-section/selectivity-limit current/selectivity coordination table/limit breaking capacity of circuit breaker/backup protection/protection coordination引用本文复制引用
出版年
2024
NETL
NSTL
万方数据