三相变压器组别判别教学研讨

Discussions of Transformer Connection Forms Judgment Method

三相变压器的组别判断是《交通供配电与照明技术》教材中的重点内容。如何快速、准确地画出变压器两次侧的电压矢量图,是利用"时钟法"进行变压器组别判断的关键所在。为了使非电力专业本科生快速、准确地掌握知识点,本文总结出了一种简单、快速的三相变压器组别判断"5步判别法则"的画法要领。降低了知识点的难度,收到了很好的教学效果。

Judgment method of transformer connection forms is an essential part of Technology of Traffic Power Sup- ply and Lighting. How to draw voltage vector-graph of transformer accurately is key step to judge connection forms of transform by employing the clock method. In order to reduce understanding difficulty of this knowledge, a simple and fast ＂five steps method＂ is proposed in this paper to judge connection forms of transform. Teaching practice in- dicates that with the help of proposed method, most students are able to master transformer connection forms judg- ment method easily.