天气预报 > 其他 > 如何选择断路器
如何选择断路器
更新时间: 2020-09-16 00:00:00  

由线路的计算电流来决定断路器的额定电流;断路器的短路整定电流应躲过线路的正常工作启动电流;按线路的最大短路电流来校验低压断路器的分断能力;按照线路的最小短路电流来校验断路器动作的灵敏性,线路最小短路电流应不小于断路器短路整定电流的1、3倍;按照线路上的短路冲击电流来校验断路器的额定短路接通能力,即后者应大于前者。

关键词: 如何 选择 断路器

如何选择断路器相关经验

天气预报

最新推荐

页面:/news/view-934921/ | 耗时:0.1284 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=934921 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=934921 LIMIT 0,1
select * from tbl_Articles_sphinx where id=934921 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1078791,1128603,2097695,1976102,2422027,2702033,1775451,1837563,165844,1955165,1991916,770042,1601302,2119199,1494825,2663900,1079307,1770291,131412,2306587,1851128,1446835,1584535,3027046,1050623,1085874,192589,316560,2212063,288937) ORDER BY field (ArticleID,1078791,1128603,2097695,1976102,2422027,2702033,1775451,1837563,165844,1955165,1991916,770042,1601302,2119199,1494825,2663900,1079307,1770291,131412,2306587,1851128,1446835,1584535,3027046,1050623,1085874,192589,316560,2212063,288937)