三相变压器联结组的实用判别法

A Practical Determining Method for Link Group of Three phase Transformer

三相变压器联结组的确定问题是变压器使用中的难点之一.通过总结、比较联结组判定的方法和规律,解决了以标准联结组中同一芯柱上字母标号一一对应、首端都为同名端的3种常用联结组(Y,y0;Y,d11;Y,d1)方便而快捷地来判定和检测其他各种联结组的问题.实践证明,此方法效果良好.

Determining the link group of threephase transformer is a crucial issue in using transformer. In this paper,we propose an easy and fast method for determining link groups by summarizing and comparing ways and principles to the link group.We first determine three commonly used link groups which have the same head ends of Y,y0;Y,d11 and Y,d1.Then other link groups are determined by matching the corresponding labels in the same stems of standard groups.The effectiveness of this method is demonstrated by experiments.