Classification of Transformer based on Different Types

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The transformer plays a vital role in the electrical power system and many other electrical circuits. This article is all about the different classification of the transformer.


A Transformer is an electromagnetic device which is used for step up or step down the voltage level with respect to increasing or decreasing the current level at a constant frequency.

Only alternating current (AC) uses in a transformer. Without using the transformer, AC current cannot be circulated current and generated emf as per the recruitment. And the transformer does not use or work on direct current (DC) due to constant current and zero frequency.

Already, I have shared a tutorial based on the main parts of a Transformer with construction.

In this article, we will study the construction types of the transformer briefly.

Classification of Transformer based on Different Types

According to the studies and uses, we are using different kinds of transformers for a different purpose. So everyone working in this field must know the different types of transformer.

As per requirement, multiple types of the transformer are used and several branded of the transformer are manufactured.

I mention the below list of different types of transformer based on various basis.

Keep scrolling the types of Transformers below.

Base on Electrical Supply

  1. Single phase transformer
  2. Three phase transformer

You can clear your points by the difference between single-phase and three-phase power systems.

Base on Construction

  1. Core type transformer
  2. Shell transformer

Base on Measurement

  1. Current transformer
  2. Potential transformer

Base on Service

  1. Distribution transformer
  2. Power transformer

Base on Cooling

  1. Dry type transformer
  2. Oil immersed type transformer

Base on Function

  1. Step up transformer
  2. Step down transformer

Base on Winding

  1. Single winding or Autotransformer
  2. Two winding transformer
  3. Three winding transformer
  4. Six winding transformer

Base on Types of Winding

  1. Concentric types winding
  2. Sandwich types winding

The design of the transformer depends on the power distribution, its power capability, and transformer losses in the power system.

Companies Manufacturing Transformers

Many of the topmost electrical companies manufacture the transformer under their brand. Here is the shortlist of the Transformers brand.

The list of companies is given below.

  • ABB
  • Siemens
  • Kirloskar
  • Bhel
  • Uttam Bharat
  • Urja
  • Kotsons
  • Danish

That’s it all about various/different types and classification of the transformer. These different types of transformer you can easily buy and use.

In an upcoming tutorial, I will be covering detail about each transformer type.

Related Read:

If you are interested to give the online quiz, here is the electrical Transformer Quiz.


Thanks for Reading!

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