Elecrical Knowledge

conductors:                  The substance which is the least resistant in the flow of current and which is easily passed from the pedestal to the current, is known as the conductor, the conductor is also called the conductor. Copper, aluminum, iron, electrolyte etc. are metal conductors Insulator:                 The objects which are blocking the flow of currents in very high proportion, and from which the electrices can not pass through easily, are referred to as insulators. The inventor can also be called an insulator, Rubber, Asbestos, Bekalite, Mica, Ambonite, Wood , Etc. are known as insulators. Difference between conductor and insulator 1 The number of free electrons increasedIn the objects which are in their acrosFrom the simplicity of voltage-inducing currentPermitting to flowThe objects that are called are called conductors The number of fr...

        Hello friends, we have many electrical or electrical equipment available everywhere, we use kahini electricity in the day, a large part of our entire life passes through electricity but we do not even know what electricity is ? How does he grow? It is said to be born? These questions arise in our mind but there is no one to answer them, so why have you come today in response to this question, let us know.  What is electricity? (What is electricity?):                               According to scientist J. Thomson, nothing is known only as electrons, ie that the flow of electrons is called electricity, electricity and electricity are the same, we can not see the electricity, but they can definitely feel, like Conversion of electricity to light, heat, magnetic and other physical effects. How Does Electricity Occur?             ...

          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 ...

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 magnetis...

                                 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.               ...

 Battery charging:     Battery charging means that the secondary cell density is less than 0.8 or it is charged immediately to recharge the battery.                       Generally, DC to charge secondary cell. Is used but every space is in DC Since there is no getting it, AC needs to be converted into DC and then the battery is charged. This type of tangor bulb type rectifier is usually used, The motor generator set is used for this method where the battery is charged.                      For this, the connection of the positive terminal of the DC source should be done with the positive terminal of the battery and the connection of the negative negative terminal of the source should be done with the negative negative terminal of the battery. If the polarity succeeds, then the DC ends the two ends of the source connecting the battery Negative wires subme...

                            When the motor comes in to start, the resistance of the armature will be zero, since the starting current will pass through the armature in a very large amount. However, if this motor is connected directly to the line, then in that case, it may get very much current in the beginning. That fuse flies and damages to the motor's commutator and also damages the carbon brush                Eg. 440 v, 3.75kw. The idea of ​​the motor's resistance to the order is 0.25 ohm and the value of the flower load current is 50 A. Now if the motor is directly started on the line, then in the case of the motor will take 440 / 0.25 = 1760A The value of which will be 35.2 times the load current.                 In order to avoid this, the resistance in the series of Artefacts is introduced only for start of 5 to 10 seconds f...