低功率因数下有功功率正确测量的探讨  

Discussion of Accurate Measurement Methods of Active Power on Low Power Factor

作　　者：杨茂涛[1] 张成林[2] 

机构地区：[1]湖南省电力公司试验研究院,长沙410007 [2]湖南省电力公司中心培训部,长沙410131

出　　处：《电测与仪表》2010年第A08期16-18,共3页Electrical Measurement & Instrumentation

摘　　要：探讨了低功率因数下有功功率的正确测量方法,包括使用低瓦表法、使用视在功率和无功功率间接测量法、使用一块有功功率表和一块无功功率表且采用特殊接线间接测量法。最后,对各种测量方法产生的误差及其量值溯源进行了分析。This paper discusses several accurate measurement methods of active power on low power factor, which include using low-Watt-meter, indirect measurement by using apparent output and reactive power, and indirectly measuring method by a special connection of an active power meter and a reactive power meter. Finally, the different errors of the measurement methods mentioned above, as well as the traceability of value of a quantity, are analyzed.

关 键 词：低功率因数 低瓦表 量值溯源 误差分析 有功功率测量 

分 类 号：TM933[电气工程—电力电子与电力传动]