This lesson covers the concept of equivalent circuits of transformers, their ratings, and how to specify them. The lesson also discusses the voltage rating of the primary and secondary side, and the current carrying capacity of the coils on both sides. The lesson further explains how to calculate the rated current of the HV and LV side, and the importance of not exceeding the rated current. It also touches on the concept of transformer impedance and how it can be manipulated.
00:29 - Explanation of the equivalent circuit model
04:09 - Explanation of the KVA rating of transformers
14:17 - Explanation of the full load condition of transformers
23:15 - Explanation of the equivalent circuit referred to the source
25:40 - Explanation of the equivalent circuit referred to the load