关于变压器电势方向的理论商榷

本文主要讨论了关于变压器电势的方向问题。按左螺旋定则设感应电势的正方向,可得出变压器原、副绕组的相电势(相电压)为同相位的结论。这样,较易于理解感应电势的物理性质,更重要的是这一结论和实验结果及国家标准GB1094—71相一致。

A THEORETIC STUDY ON THE DETERMINATION OF THE EMF DIRECTION IN A TRANSFORMER

This paper studies the determination of the EMF direction in a transformer. By using the le - hand spiral rule to set the induced EMF as its positive direction, the conclusion can be draw that phase EMFs (phase voltages) of primary and secondary windings of a transformer are of th same phase. Thus , it becomes easier to understand the physical properties of an induced EMF Furthermore, this conclusion is in agreement with experimental results and the national standar GB1094-71.