低负荷下电能计量设备对计量准确性的影响分析及对策  

Influence Analysis and Countermeasures of Energy Metering Equipment on Measurement Accuracy under Low Load

作　　者：刘宇鹏[1] 董永乐[1] 张鑫[1] 鲁继业[1] 张理放 LIU Yupeng DONG Yongle ZHANG Xin LU Jiye ZHANG Lifang(Inner Mongolia Power Research Institute, Hohhot 010020, China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020

出　　处：《内蒙古电力技术》2016年第6期40-43,共4页Inner Mongolia Electric Power

基　　金：内蒙古电力(集团)有限责任公司2015年科技项目(2015019)

摘　　要：分析了低负荷条件下电流互感器、电能表以及计量二次回路对电能计量准确性的影响,并提出要合理选择电流互感器计量绕组变比、保证电能表的启动电流符合要求、计量回路中不接入与计量无关的设备和端子等应对措施,确保低负荷下电能计量的准确性。Analyzed the low load current transformer,electric energy meter and measuring voltage circuit influence on electric energy metering accuracy,and proposed the reasonable selection of current transformer metering ratio and ensured the meter starting current to meet the requirements,and ensured equipment and terminals not being connected to the measurement in the measurement loop,ensured the electric energy metering accuracy under low load.

关 键 词：低负荷 电能计量 计量设备 电能表 电流互感器 计量二次回路 误差 

分 类 号：TM933.4[电气工程—电力电子与电力传动]