相量图法判定三相变压器联结组号的研究

A Study on Three-phase Transformer Connection Groups and Marks by a Phase Graph Method

三相变压器共有12个联结组号,一般采用画电动势相量图来确定联结组号。"用相量图法判定联结组号"在教与学中是一个较为典型的难点,近年来各院校在传统的画法上不断研究,取得了一些进展。本文介绍作者根据多年来的教学研究,对相量图法判定联结组号的一种新方法。

There are 12 connection groups and marks in three-phase transformer,and we usually decide it by drawing the electromotive phase diagram.It is especially difficult to teach and learn so each college has made some progress with continuous search on the traditional drawing in recent years.This paper will introduce another new criterion of the three-phase transformer connection groups and marks through years of research of the writer.