**What are Ideal Electrical Transformers?**

An ideal transformer is a type of transformer in which there are no losses occur. This is an ideal case of the transformer but in reality, there are no transformers that exist. The Efficiency of the Ideal Transformer is 100% which means

**Input power = Output power**

The ideal transformer is a useful model because it allows engineers to analyze the behavior of real transformers in a simplified way, and to design transformers that approach the ideal model as closely as possible.

However, no transformer can truly achieve perfect efficiency and no losses, and real transformers are subject to various types of losses, such as core losses, copper losses, and leakage losses.

In the figure, a transformer is shown in which primary winding is connected with v1 and secondary winding is connected with v2

**Principle of Ideal Transformer**

The ideal Transformer consists of Pure Inductive Coils that wind in the core with zero losses.

The Primary coil of the transformer is connected with Alternating Voltage V1 and the secondary is open. Due to this potential difference, the alternating current flows in the primary which is called magnetizing current Iu. The purpose of Iu is just to magnetise the core.

The value of magnetising current is very low and it lags behind 90° with V1. This Magnetising Current Iu produces alternating flux Ñ„ Which is in Direct relation with Iu.

Same as E2 produced in the secondary windings which are called Mutually induced EMF. E2 is opposite to V1 and their quantity is dependent on the change of flux and number of secondary turns.

## Conclusion

## Faqs(Frequently Asked Questions)

#### What are the key equations for an ideal transformer?

**V1/V2 = N1/N2**

**I2/I1 = N1/N2**

#### What is the significance of an ideal transformer in practical applications?

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