In this article, we will learn about what is an ideal transformer.

## Definition of Ideal Transformer

An **electrical transformer** is said to be an **ideal transformer** when:

- It has no winding resistance i.e., an ideal transformer has zero resistance of its primary and secondary windings. Hence, there is no I
^{2}R or copper loss in the ideal transformer. - It has no leakage flux i.e., the magnetic flux produced by the primary winding completely links to the secondary winding.
- It has no iron or core losses i.e., the losses that occur in the magnetic core which are eddy current loss and hysteresis loss are zero for an ideal transformer.

## Diagram of Ideal Transformer

The schematic diagram of an ideal transformer is shown in the following figure.

From this diagram, we can observe that

$$V_1 = E_1$$

$$V_2 = E_2$$

## Conclusion

So, this is all about the definition and diagram of an ideal transformer. An ideal transformer does not exist practically, but it is a model of a transformer used for the study and analysis of a practical transformer.