All Types of Electrical Transformer Symbol and Diagram


All Types of Electrical Transformer Symbol and Diagram



Having a background in electrical engineering, you must know all types of electrical transformer symbols. A transformer is an electrical machine(called in electrical engineering) or passive component(called in electronics engineering) that transformer electrical energy from one circuit to another circuit with the help of faraday's law of electromagnetic induction. In this article, we are going to see the symbol of transformer. 


Single Phase Transformer Symbol


Here, you can see the symbol of a single phase transformer.

Single Phase Transformer Symbol, symbol of Single Phase Transformer



This symbol is used for single-line wiring diagrams. So, you must know this transformer's single line diagram symbol. Here, the two circles indicate the two winding of the transformer. These two circles are overlapped to each other because it indicates they are wound on the same core and magnetically connected to each other. The upper and lower two lines indicate the primary and secondary winding terminals of the transformer.


Three Phase Transformer Symbol


Here, you can see the symbol of a three-phase transformer.

Three Phase Transformer Symbol, symbol of three phase transformer



It is also almost the same as the single-phase transformer, just the difference is here, three lines on both sides that indicate the three-phase terminals of the transformer.




Iron Core Transformer Symbol


Based on the core material Transformer is classified into main three types. Iron Core Transformer is one of them. Here, you can see the symbol of Iron Core Transformer.

Iron Core Transformer Symbol, symbol of Iron Core Transformer



Ferrite Core Transformer Symbol


It also comes under the types of transformer classified based on the core material.

Ferrite Core Transformer Symbol, symbol of Ferrite Core Transformer




Air Core Transformer Symbol


Here, you can see the symbol of Air Core Transformer

Air Core Transformer Symbol, symbol of Air Core Transformer



Variable Transformer Symbol


Variable Transformer is that where voltage can be varied either by providing tapings or changing the position of the transformer core.

Variable Transformer Symbol, symbol of Variable Transformer




Step Down Transformer Symbol


Here, you can see the symbol of step down transformer.

Step Down Transformer Symbol, symbol of Step Down Transformer



Step Down transformer transfers the electrical energy by lowering the voltage and increase the current. A step down transformer has more turns in primary winding than the secondary winding. So, you can see the turns difference in primary and secondary winding in its symbolic diagram.


Step Up Transformer Symbol


Step Up transformer increases the voltage but decreases the current in its secondary side. Step Up transformer has fewer turns in primary winding than its secondary winding.

Step Up Transformer Symbol, symbol of Step Up Transformer




Autotransformer Symbol


Here, you can see the symbol of autotransformer. An autotransformer has a single winding. Tapping is provided for the output power supply.

Autotransformer Symbol, symbol of Autotransformer

IsolationTtransformer Symbol


Here, you can see the symbol of Isolation transformer. The isolation transformer is that where both primary and secondary winding has the same turns and they carry the same voltage also. The isolation transformer is used where proper isolation is required between two different power circuits.

Isolation Transformer Symbol, symbol of Isolation Transformer




CT or Current Transformer Symbol


It is an instrument transformer. Current transformer mainly used for measurement purpose, automation purpose, etc.

CT or Current Transformer Symbol, symbol of Current Transformer


PT or Potential Transformer Symbol


Here, you can see the symbol of potential transformer. It is also an instrument transformer and used for measurement and control systems.

PT or Potential Transformer Symbol, symbol of Potential Transformer




Symbol of Voltage Transformer


The voltage transformer is used everywhere such as power transformer, distribution transformer, etc.

Voltage Transformer Symbol, symbol of Voltage Transformer


AC Transformer Symbol


AC Transformer Symbol, symbol of AC Transformer




Power Transformer Symbol


Power transformers are used in power generating stations. The main function of the power transformer is to step up the voltage for high voltage power transmission. Power transformers are generally, Star-Delta connected, which means they have star-connected winding in the primary side and delta-connected winding in the secondary winding. Here, you can see the symbol of power transformer.

three phase power transformer symbol, symbol of power transformer


Distribution Transformer Symbol


Distribution transformers are used on the consumer end. The main function of the distribution transformer is to step down the voltage if required and distribute the electrical power with an electrical balance. Generally, distribution transformers are Delta-Star connected, but they may be Star-Star connected also. Here, you can see the symbol of Distribution Transformer.

three phase distribution transformer symbol, symbol of distribution transformer

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All Types of Electrical Transformer Symbol and Diagram All Types of Electrical Transformer Symbol and Diagram Reviewed by Author on 10/20/2021 Rating: 5
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