三相变压器的联结组别判定方法及绕组联结图的绘制

Determination method of connection group of three phase transformer and drawing of winding connection diagram

针对于现有教材绕组联结图绘制方法中时针表示和向量定义不能统一的问题,提出了一种判断联结组别的方法,总结出两种常用的高压绕组和低压绕组的标记法,推导了不同接法的线电动势和相电动势之间的关系方程,绘制出高、低压绕组的电动势向量图.给出了由联结组别的标号绘制绕组联结图的方法,得到铁心柱相位的变化、异名端标志与联结组别的定量关系。建立了联结组别的校核公式,通过实验验证绕组联结组别的正确性.

In order to solve the problem of non-uniform which judgment connection group＇s method of Victoria subtraction definition and clock expression method of the current teaching material, a method of judging the connection arrangement is proposed, summarize two kinds of commonly used notation of high-voltage winding and low-voltage winding, derive the relation equation between different line-EMF and phase-EMF. Draw the EMF of the high, low-voltage winding to the vector diagram. The method is illustrated by reference to draw links constituencies winding connection diagram, the phase change to obtain core columns, synonyms and mark the end quantitative relationship linking groups. The checking formula of the connection group is established; through experiments verify the correctness of winding connection groups.