Answer: Transformer which has characteristics such as no winding resistance, no magnetic leakage, no iron loss or core loss ( hysteresis and eddy current loss), and zero magnetising current is termed as Ideal Transformer. Ideal transformer is assumed for better explanation and understanding of practical transformer.
The ideal transformer should have the following properties:
- It has no losses
- Its windings have zero resistance
- It should have zero leakage flux (100% flux produced by primary links with the secondary)
- Permeability of core is so high that negligible current is required to establish the flux in it.