Comprehending the in-depth functioning of a voltage transformer beyond the trivial voltage ratio, generally deducted from the application of Faraday’s law to an open secondary circuit, can be quite challenging for both students and teachers. In this paper, the authors propose an approach that uses Faraday’s and Ohm’s laws alone to derive an electric equivalent circuit for a transformer, with which is possible to accurately explain and predict currents and voltages in its primary and secondary coils under different load resistors connected to the secondary. The authors intend to use a common real-world application as motivation for students to learn Faraday’s law in the context of a modelling and simulation framework, which consists of deriving a model from fundamental physical laws that, after experimental validation, is capable of accurately predicting and explaining a complex phenomenon.

理解电压互感器的深入功能超出了微不足道的电压比，通常是从法拉第定律应用于开放式二次电路中推断出来的，这对学生和教师来说都是非常具有挑战性的。在本文中，作者提出了一种方法，该方法仅使用法拉第定律和欧姆定律来推导变压器的等效电路，从而可以准确地解释和预测在不同负载电阻下连接到变压器的初级和次级线圈中的电流和电压。次要的。作者打算使用一个常见的现实世界应用程序作为动机，让学生在建模和模拟框架的背景下学习法拉第定律，该框架包括从基本物理定律中推导出一个模型，经过实验验证，