说明：  本文主要介绍了ADI 公司最新推出的三相高精度多功能电能计量芯片ADE7878， 以及其在谐波计量中的应用，重点阐述了ADE7878 的功能特点，典型电路以及电能计量 方法，尤其对ADE7878 校表流程及其算法做了详细介绍。
(This paper describes the ADI' s latest high-precision multi-function three-phase energy metering chip ADE7878, as well as its application in harmonic measurement, focusing on the features of the ADE7878, the typical circuit, as well as power measurement methods, especially for the ADE7878 School tables process and its algorithm has done a detailed introduction.)