基于单片机和A RM的变电站互感器极性智能检测系统分析

摘要

A system for whole substation transformer polarity detection is developed.Aiming at existing conventional substation characteristics, the system provides the excitation sources in front side and back side of the main transformer for dual-side data acquisition in the distribution chamber and relay chamber and then,compare the primary side signal with the secondary side signal to educe the transformer polarity.This paper presents an introduction on basic principle of the detection method and the composition of primary-side and secondary-side hardware and software.Experimental validation proves that the system can intelligently detect the correct polarity in the transformer and improve the work efficiency.%研制了一种针对全站互感器极性检测的系统，针对现有传统变电站特点，在主变前和主变后分别放置激励源，在配电室和继电室进行二次侧数据采集，通过将一次侧信号与二次侧信号比较得出互感器极性情况。介绍了检测方法的基本原理和一二次侧硬件、软件组成，试验结果表明，可以智能检测出互感器极性的正确性，提高工作效率。