作　　者： (孙进辉）;

机构地区： 中国人民武装警察部队学院 训练部,河北 廊坊065000

出　　处： 《实验技术与管理》 2017年第8期84-87,93,共5页

摘　　要： 叙述了三相三线电路有功电能的测量原理和计量误差,介绍了一种以dsPIC30F6010单片机为核心、基于测差法原理测量电压互感器二次压降的便携式智能仪器的结构,并给出了该测试仪的硬件框图及软件流程图。提高了二次压降测量的实时性和系统性,测量方便、准确、快捷。 The measuring principle and the measurement error of the active power of the tri-phase and tri-wire circuit are described,and the structure of the portable intelligent instrument based on the secondary voltage drop of the voltage mutual inductor measured by the differential method is introduced.This portable intelligent instrument has the dsPIC30F6010 SCM as its core,and the hardware diagram and the software flow chart of the tester are presented.

关 键 词： 电压互感器 二次压降 测差法 计量