天气预报15天查询> 机械> 30kw用多大的电缆

30kw用多大的电缆

更新时间: 2021-06-03 15:41:35     

1、如果是380V,导线电流密度是5A/MM2。30KW要用10.725平方毫米的电缆和53.625安培的开关。

2、根据三相电功率计算公式:P=√3UIcosa(cosa是功率因数,一般取值0.85)。I=30000÷(1.732×380×0.85)=53.625(A)。导线截面积=53.625÷5=10.725(平方毫米)。

关键词: 30kw 电缆

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-376756/ | 耗时:0.8394 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=376756 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=376756 LIMIT 0,1
select * from tbl_Articles_sphinx where id=376756 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(614541,2972237,862617,2951362,814149,836350,877109,1046717,3165083,1515696,3010083,1676492,892893,1839256,3523050,1092763,3364758,518096,621418,872580,375448,2827896,2002795,2801260,385697,3127056,2067502,558453,3667622,1141044) ORDER BY field (ArticleID,614541,2972237,862617,2951362,814149,836350,877109,1046717,3165083,1515696,3010083,1676492,892893,1839256,3523050,1092763,3364758,518096,621418,872580,375448,2827896,2002795,2801260,385697,3127056,2067502,558453,3667622,1141044)