[Explained] Types of Transformer with Applications


Transformer Types and Applications



There are many types of transformer are available. Transformers are classified based on many things and factors like voltage level, core types, windings arrangements, core medium, and many other factors. Here you will know about the different types of the transformer and their applications.



We know that a Transformer is an electrical machine which transfers electrical power from one circuit to another circuit with changing the voltage level. So first let's see the types of transformer based on Voltage Level.





Types of Transformer based on the Voltage Level:


You must know the classification of the transformer based on the voltage level because of our main purpose of using a Transformer to increase or decrease the voltage. Based on the voltage level Transformers are classified into two types i.e. Step Up Transformer and Step Down Transformer.


Step UP Transformer:


The Transformer which steps up or increases the voltage is called Step Up Transformer. The output voltage level of a step up transformer is always greater than the input voltage level but input power and output power always same. These transformers can increase the voltage because of the no. of turns in the secondary winding is greater than the no. of turns in primary windings which is shown in the below figure.



Step UP Transformer, Transformer Types



Characteristics:

1. The no. of turns in the secondary winding is greater than the no. of turns in the primary winding.
2. Output Voltage is greater than the input voltage.
3. The input current is greater than the output current.
4. Input power and output power is the same.
5. Input frequency and output frequency is also the same.



Applications of Step Up Transformer:


1. A common application of Step Up Transformers is they are used in electrical power generating stations to step up the voltage level from generating voltage to Grid voltage.

2. Step Up Transformer is used in Inverters to step up the voltage.

3. Step Up Transformer is used in Microwave Ovens.

4. Step Up Transformer is used in Mobile Phone Chargers.







Step Down Transformer:



Step Down Transformer, Types of Transformer



Characteristics:

1. The no. of turns in the primary winding is greater than the no. of turns in the secondary winding.
2. Input Voltage is greater than the output voltage.
3. The output current is greater than the input current.
4. Input power and output power is the same.
5. Input frequency and output frequency is also the same.





Applications of Step Down Transformer:


1. Step Down Transformers is used in Electrical Power Distribution Purposes.

2. Step Down transformer used in electrical and electronics devices to step down the voltage such as 240V to 12V.

3. In electrical switchgear protection system step down transformers are used to give supply to the control circuits.



Types of transformer based on Phase:


1. Single Phase Transformer


Single Phase Transformers are used in electrical and electronic appliances.


2. Two-Phase Transformer


Two-phase transformers are used for special purposes. In railway traction system two-phase transformers are used.


3. Three Phase Transformer



Three Phase Transformer, Transformer Applications


Three Phase Transformers are used in electrical power transmission, distribution purposes.





Types of Transformer based on Core Medium:


Based on the Core medium used Transformers are mainly classified into two types one is Air Core Transformer and another is Iron Core Transformer.

Air Core Transformer:



Air Core Transformer, Application of all types of Transformer



Characteristics:

1. In these transformers, primary and secondary windings or coils are wound on non-magnetic materials.
2. Here flux linkage occurs between primary and secondary windings through Air.
3. Hysteresis and Eddy Current losses do not occur in these transformers.


Applications of Air Core Transformer:


1. Mainly in high-frequency operations, Air Core type transformers are used.
2. Air core transformers are used in Radio Wave transmission system.
3. Air core transformers are used Audio systems.
4. Air core Transformers are used in Communication Devices.





Iron Core Transformer:


Characteristics:

1. In these transformers, windings are wound on a laminated Iron core.
2. Here flux linkage occurs between primary and secondary windings through the Iron Core as well as through the Air.
3. Hysteresis and eddy current loss occurs in these transformers.


Applications of Iron Core Transformer:


1. For most of the purposes, Iron core transformers are used.
2. In transmission, distribution system Iron Core Transformers are used.


Types of Transformer Based on Core Design:



1. Core Type Transformer




Core Type Transformer, Application of Transformer





2. Cell Type Transformer




Cell Type Transformer, Transformer Types and Applications




AutoTransformer Applications:


1. Auto Transformers are used as Variac to provide variable voltage supply.
2. Auto Transformers are used as a starter for starting of small induction motors.
3. Auto Transformers are used in Audio system for impedance matching.
4. In Railway system AutoTransformers are used.



Pulse Transformer Applications:


1. Pulse Transformers are used in Digital Logic Circuits and Telecommunication Circuits.
2. These transformers also used in camera flash controller system.
3. These transformers are also used in Switchgear control circuits.





 Types of Transformer in Brief:


Types of Transformer
Based On
Types
Voltage level
Step Up Transformer, Step Down Transformer
No. of Phases
Single Phase Transformer, Two-Phase Transformer, Three Phase Transformer
Core Medium
Air Core Transformer, Iron Core Transformer
Design of Core
Core Type Transformer, Shell Type transformer, Spiral Core or Wound Core type transformer
Usage
Power Transformer, Distribution Transformer
Winding Arrangements
Auto Transformer
Measurement Transformer
Current Transformer, Potential or Voltage Transformer
Place of Use
Indoor Transformer, Outdoor Transformer
Cooling Arrangement
Oil Immersed Forced Air Cooled Transformers, Oil Immersed Water Cooled Transformers, Oil Immersed Forced Oil Cooled Transformers,





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