Transformer

 TRANSFORMER

    Is the device that transfers electric energy from one alternating current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage. 
   Transformers are used to increase or decrease the alternating voltages in electric power applications.

PARTS OF TRANSFORMER
    There are three parts of Transformer

1. Primary winding
This produced magnetic flux when it is connected to an electrical source.

2. Secondary winding
The flux produced by the primary winding passes through the core will link with the secondary winding.
This winding is also on the same core and gives the desired output of the Transformer.

3. Core
The magnetic flux produced by the primary winding passes through this path linked with secondary winding are creates a closed magnetic circuit.

TYPES OF TRANSFORMER
    According to the design, Transformer can be classified into two categories.

1. CORE TYPE TRANSFORMER

 In a core-type transformer, the windings are given to a considerable part of the core.

    The coils used in this Transformer are form wound and one cylindrical type.
    Such as a type of transformer can be applicable for small sized type,  the core will be the rectangular shape and the coils used one cylindrical.
    The general arrangement of the core type Transformer.

2. SHELL TYPE TRANSFORMER
In she'll type Transformers the core surrounds a considerable portion of the windings.

WORKING PRINCIPLE OF TRANSFORMER
    when one winding is supplied by an alternating electrical source.
    The alternating current through the winding produces continually changing flux that surrounds the winding.
    If any other winding is brought near to the previous one some portion of this flux will link with the second.
    As this flux is continually changing in its amplitude and direction there must be a change in flux linkage in the second winding or coil.

FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION STATES THAT
    "Induced EMF across to coil is directly proportional to the rate of change of flux linkage"