Alternator Function and Alternator Wiring Diagram in Car


The main function of Alternator is to convert mechanical energy into electrical energy in alternating nature. As it creates the alternating current that is why it is called alternator. In this article, you will find the alternator function and alternator wiring diagram in a car. We know that alternator is used in car or automotive for charging purpose. So let's start.


Alternator Function in a Car


The alternator is used in the car to create the electrical energy to charge the battery. Initially, the engine is started in a car using a dc motor taking power supply from the battery. So there is a requirement of charging of the battery.

The alternator in a car is connected with the engine through a belt. So when the engine rotates the alternator also rotates and it creates electrical energy in alternating nature. The car alternator has some circuitry inside it.




Alternator Wiring Diagram


Here the basic internal circuit diagram of the car alternator and the wiring diagram of the alternator with battery is given below.

Alternator Wiring, Alternator Wiring Diagram


As you see there are the three-phase alternator is used in the car. The three-phase alternator has two parts stator and rotor. The stator contains the three-phase armature winding and the rotor contains field winding.

We know that battery can store DC only. So a  Rectifier circuit placed in the alternator which converts the three-phase AC into DC.

The connection of the field winding taken through the slip ring and is connected to a voltage regulator circuit. The voltage regulator circuit takes the DC power supply from the output of the rectifier circuit and gives to the field winding.

The main function of the voltage regulator circuit is to control the power input to the field winding. Suppose the output voltage and current are increased above the normal value. At this time the voltage regulator will decrease the power input to the field winding hence the voltage in the armature winding will decrease and a normal value will maintain.





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Alternator Function and Alternator Wiring Diagram in Car Alternator Function and Alternator Wiring Diagram in Car Reviewed by Author on 07:42 Rating: 5
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