In this letter, a new method is proposed to measure the magnetizing inductances of dual reversible models of single-phase two-winding transformers. Different from all available methods, a dc source is used to excite the transformer to produce deep-saturation through an air-core inductor. A small ac source is applied to the other winding to measure the two magnetizing inductances with only one test, significantly reducing the cost. The cost is further reduced because the necessary equipment is of smaller size than that for the available methods. The proposed method is validated experimentally and with finite elements simulations for two single-phase transformers.

中文翻译：

---

测量单相两绕组变压器双可逆模型的深饱和磁化电感的新方法

在这封信中，提出了一种新的方法来测量单相两绕组变压器的双可逆模型的磁化电感。与所有可用方法不同，直流电源用于激励变压器以通过空心电感器产生深饱和。仅需一次测试即可在另一个绕组上施加一个小的交流电源，以测量两个励磁电感，从而大大降低了成本。由于所需设备的尺寸小于可用方法的尺寸，因此进一步降低了成本。实验验证了该方法的有效性，并通过有限元仿真对两个单相变压器进行了验证。