Transformer|working principle of transformer

   Transformer : definition   Transformer is a static device which transfers power from one circuit to another circuit.

So,why we call it as device?why not  machine? As we discussed , transformer is a static i.e do not have any moving parts in it.(DC motor is a machine as it has moving parts ).  Because of these ,transformer have high efficiency (no any frictional loss) and it requires less maintenance.            

    We can also say that Transformer is a device which steps up or step down the voltage rating.(for example -our equipment works on 215V but if given supply is 5V only. Then,we have to increase/step up the 5V supply to 215V for satisfactory operation.) 

        This device works on principal -Faradays law of electromagnetic induction.If one coil is connected to a source of an alternating voltage ,the current flows through the winding and produces an alternating flux in core . 

Transformer.  

  This flux links with secondary winding and produces mutual induced emf E2 in it. Also flux links with primary winding and produces  self induced emf E1.

     

    There are two types of windings.                                  

(1) primary winding - winding which is connected to source. (2)secondary winding -winding which is connected to load .They are insulated such that there is no any electrical contact between windings and core.

      

  Core is made up of silicon steel material which provides comman magnetic path for the windings. Windings are electrically separated but magnetically coupled because of this core.

Advantages of transformer: 

The benefits are referenced underneath: 

•Its advantage is controlling and balancing out the voltage transmission. 

•It doesn't need any beginning time. 

•It is exceptionally effective with less capital venture and low support. 

•They give disconnection to the ground. 

•There are no moving parts in Transformers thus, the frictional misfortunes are zero. 

Drawbacks of Transformer 

There are a few downsides in the exhibition of Transformers. Some of them are referenced beneath. 

•Due to its material in the creation of the iron center, there is wastage in the current stream. 

•It gives out parcel of warmth which requires cooling. This makes a break in the progression of the current.