What is a transformer? Explain its work principle, design, and use

          same  frequencies, a fixed part of the electronic instrument to convert the power from one circuit into another circuit, called a transformer, increases or decreases the voltage and decreases or decreases in the current with it. The value of the power remains the same during this process. That does not change the Transformer works on the rule of electrodynamic induction of Faraday

Principle:

              Transformer works on the theory of electromagnetism and electromagnetic induction. When two claws are held near them. And if one passes through AC coefficient, the second coil also has an emf indusus which is at the flux produced in the first coil. Based

Formation:

            The main part of the transformer is the core and the wing

1.Cor:

            Transformer's core combustibles are made of slim straps of silicon steel, these stripes are laminated. These strips are more resistant to straps and less hysteresis losses. The thickness of these stripes is 0.35 mm to 0.55 mm. And all the stripes are put into paper by placing the varnish or enamel and insulated from each other. For this, two types of core are used. Which are shown in the figure which are called the core type and shell type

       

2.Winding:

               One is vinded on both the sides of the core. There is no direct connection between these two wings. The only electromagnetic induction is the relation. A sound from the two vibrations is called the primary sounding which is connected to the supply. When the other winding Is called secondary sounding. Output is obtained from it. Use of super anamorphic copper wire for this sounding Is.

Use:

                    Using a transformer we can see every space such as an electronic device, as well as a large substation that is useful for the increase or decrease of voltage, and it is also used in many places.

D.C.4 point starter

The formation of this starter has been shown in the figure. We have seen that DC motors can not be combined with direct supply because the motor is damaged. To avoid this, the starter is used. We use the DC stator And we will now know about the DC4 point starter
           

                   Its composition has been shown as shown in the figure. We can see that one end of the DC solution is given in overloaded relay, and given in the handle. It is arranged in accordance with the order of the motor of the motor through Resistance. .and the other end of the DC clearway is given directly to the other terminal of the motor, ie, the starter is attached to the motor series. The nvc coil is also found in the stator Holds the handle on the motor coming to the fullspeed
                     Now when the collapse of the current supply falls, the magnetism of the nvc coil will be lost and the handle will come back into a closed position with the help of spring and the handle will not turn on until the reloaded handle is re-rotated.
                      Now when the current motors overload the question of overload, more flow will pass through the overloaded relay, and in it the magnet produces the strip against it as a result and both the nvc coil's terminal short nvc coil magnetism is destroyed and the handle will be re-closed. And the motor will be closed
                          So this was the 4 point starter's procedure

D.C 3 POINT STARTER

               

                 It can also be called a three point starter. Its structure is shown in Figure. To start the motor, the handle is moved from off position to the first contact position. The total obstacle is in the armature circuit, the field connection is connected directly to the supply through a volt coil. Comes in as soon as the speed of the motor increases in the same way as the archete back emf emits and decreases in the value of current Now the handle is moved to the second step. Again this type of function will be done eventually at the last step of the handle. This time the armature will connect directly to the supply and this time the handle does not come with a no-volt coil. The magnet will hold the handle in the walt coil, and the motor will not need to hold the handle to continue and the motor will rotate in full speed.
                  Mechanism of 3 points Starter is done so that if the magnetism of the nvc coil is exhausted for any reason, and the handle will be re-off position through the spring, then the supply will not be supplied directly to the motor, with the handle again All the process has to be done, the overloaded relay in the starter is also fitted. It also protects from overload. In the mechanism of which the motor is overloaded
                         There is a 3-point Starter equipped with such safety systems