Transformer Construction

The three main parts of a transformer:

Primary Winding of Transformer
Magnetic Core of Transformer
Secondary Winding of Transformer

Primary Winding of Transformer

Which produces magnetic flux when it is connected to an electrical source.

Magnetic Core of Transformer

The magnetic flux produced by the primary winding, that will pass through this low reluctance path linked with secondary winding and create a closed magnetic circuit.

Secondary Winding of Transformer

The flux, produced by primary winding, passes through the core, will link with the secondary winding. This winding also wounds on the same core and gives the desired output of the transformer.

Comments

Emf Equation of Transformer,Turns Ratio of Transformer

EMF Equation of Transformer Turns Voltage Transformation Ratio of Transformer Emf Equation of Transformer EMF Equation of transformer can be established in a very easy way. Actually in electrical power transformer , one alternating electrical source is applied to the primary winding and due to this, magnetizing current flowing through the primary winding which produces alternating flux in the core of transformer . This flux links with both primary and secondary windings. As this flux is alternating in nature, there must be a rate of change of flux. According to Faraday’s law of electromagnetic induction if any coil or conductor links with any changing flux, there must be an induced emf in it. As the current source to primary is sinusoidal, the flux induced by it will be also sinusoidal. Hence, the function of flux may be considered as a sine function. Mathematically, the derivative of that function will give a function for the rate of change of flux linkage with respect to t...

Auto Transformer: What is it? (Definition, Theory & Diagram)

W hat is an Autotransformer? An autotransformer (or auto transformer ) is a type of electrical transformer with only one winding. The “auto” prefix refers to the single coil acting alone (Greek for “self”) – not to any automatic mechanism. An auto transformer is similar to a two winding transformer but varies in the way the primary and secondary winding of the transformer are interrelated. Autotransformer Theory In an auto transformer, one single winding is used as primary winding as well as secondary winding. But in two windings transformer two different windings are used for primary and secondary purpose. A circuit diagram of auto transformer is shown below. The winding AB of total turns N 1 is considered as primary winding. This winding is tapped from point ′C′ and the portion BC is considered as secondary. Let’s assume the number of turns in between points ′B′ and ′C′ is N 2 . If V 1 voltage is applied across the winding i.e. in between ′A′ and ′C′. Hence, the voltage ...

Electrical engineers

Search This Blog