排灌供电系统中低压三相四线智能电能表计量性能分析  

Analysis of Measurement Performance for Low-Voltage Three-Phase Four-wire Smart Meter in Irrigation Power Supply

作　　者：耿建坡[1] 王永辉[1] 马红明[1] 冯波[1] 任鹏[1] 

机构地区：[1]国网河北省电力公司电力科学研究院,石家庄050021

出　　处：《河北电力技术》2016年第4期4-6,24,共4页Hebei Electric Power

摘　　要：针对农村排灌机井供电方式特殊,需要使用低压三相四线智能电能表的问题,分析了不同接线方式下低压三相四线电能表的计量性能,包括电能表N线悬空、N线就地接大地引线等情况下的计量原理,以及不同接线方式下对称负荷时电能表电压断相时的电量错误情况。To the special power supply of the rural irrigation wells, State Grid new smart meter specifications have no standard for voltage three-phase three-wire meter, need to use low-voltage three-phase four wire smart meter instead. This paper analy zes measurement performance for low-voltage three-phase four-wire smart meter in different wiring, including measurement principle for N lines of the meter suspended, N lines connected to the earth ground and other circumstances, also analyzes the condition of power error for voltage phase failure when the symmetric load in different wiring.

关 键 词：排灌供电 低压三相四线电能表 三相三线供电 N线接线方式 电压断相 

分 类 号：TM933.4[电气工程—电力电子与电力传动]