Difference between Conventional Transformer and Autotransformer

The normal transformer has two windings; primary winding and secondary winding. The autotransformer is a special kind of which has a common winding for primary and secondary winding. The operating…

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Single-phase Autotransformer

Single-phase Autotransformer

The normal transformer has two windings; primary winding and secondary winding. The autotransformer is a special kind of which has a common winding for primary and secondary winding. The operating…

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Cooling Methods of Transformer

Cooling Methods of Transformer

A transformer is a static device used to transfer the electrical energy from one voltage level to another voltage level. As we have seen in the construction of the transformer,…

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Load Test on single phase transformer

Load Test on Single-Phase Transformer

Before starting the Load Test on Single-Phase Transformer , let’s define the voltage regulation. Voltage Regulation When a transformer loaded with a constant primary voltage, the secondary voltage varies because…

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Open circuit test of transformer

Open Circuit Test of Transformer

There are four tests in the transformer. Polarity test Open circuit test Short circuit test Sumpner’s test or back to back test In this article, we will explain the open…

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Ideal Transformer: properties and phasor diagram

An ideal transformer is an imaginary transformer. The proprieties of the practical transformers are different than the ideal transformers. The operation of the practical transformer is close to the ideal…

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Transformer Losses

Transformer Losses

Among all electrical machines, the transformer is the most efficient electrical machine. As shown in  working of the transformer, it is a static device. Hence, friction and windage losses are…

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Similarities and differences between Induction motor and Transformer

Similarities and differences between Induction motor and Transformer

There are many similarities and differences between the induction motor and transformer. Similarities between Induction motor and Transformer The Induction motor is similar as a Transformer with a rotating short-circuited secondary. The stator…

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Transformer: definition and working principle

Transformer: definition and working principle

A transformer is a static device and used to transfer the alternating power from one electric circuit to another electric circuit. The process of transferring power is done without any…

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Transformer: Construction and Classification

Transformer: Construction and Classification

There are two main parts of the transformer; Magnetic core Winding or Coil 1) Magnetic Core The magnetic core provides a path for magnetic flux. Maximum flux is passing through…

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