天气预报15天查询> 其他> 什么是电压质量

什么是电压质量

更新时间: 2020-09-17 00:00:00     

电压质量是对电力系统电压的偏差、波动、波形及其三相的对称性的一种质量评估。电压质量通常包括电压偏差、电压频率偏差、电压不平衡、电压瞬变现象、电压波动与闪变、电压暂降或者暂升与中断、电压谐波、电压陷波、欠电压、过电压等。以实际电压与理想电压的偏差,反映供电企业向用户供应的电能是否合格。

关键词: 什么 电压 质量

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-164862/ | 耗时:0.1340 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=164862 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=164862 LIMIT 0,1
select * from tbl_Articles_sphinx where id=164862 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1065053,1103070,1078595,1099583,1074290,1089450,1056152,1112398,1085388,1058811,1010909,1093152,1118461,1500507,1122160,1499751,1111504,1064553,1100308,1114498,1088544,1115535,1120372,1115087,1072082,1071701,1074184,1076452,1052549,1071077) ORDER BY field (ArticleID,1065053,1103070,1078595,1099583,1074290,1089450,1056152,1112398,1085388,1058811,1010909,1093152,1118461,1500507,1122160,1499751,1111504,1064553,1100308,1114498,1088544,1115535,1120372,1115087,1072082,1071701,1074184,1076452,1052549,1071077)