What are the steps involved in the generation of electrical power by an A.C. generator?

What is A.C Generator?

The process of converting mechanical energy into electrical energy is carried out by an AC (alternating current) generator, which is also referred to as an alternator. The electromagnetic induction principle, which states that an electrical voltage will be generated across a conductor whenever the conductor is moved while it is in the presence of a magnetic field, becomes the basis for its operation.

Parts of A.C Generator

The rotor, which is the portion of an alternating current generator that rotates, and the stator are the two primary components (stationary part). The rotor is made up of a collection of electromagnets that are always in motion, while the stator is made up of wire wound into stationary coils.

Function of A.C Generator

A magnetic field is generated by the rotor’s rotation, and this field flows through the stator’s stationary coils while the rotor spins. Because of this, an electrical voltage is induced in the coils, and this voltage is then transferred via the output terminals of the alternator (generator).

• Slip rings and
• Brushes

are two methods that are often used in A.C. generators for the purpose of transferring electrical current to the rotor winding in order to generate a spinning magnetic field in the rotor. This current gives the rotor winding its energy, which leads to the generation of a magnetic field that revolves in the same direction as the rotor.

The speed of the rotor, the number of poles present in both the rotor and the stator, and the intensity of the magnetic field all have an impact on the voltage & frequency of the output power generated by an alternating current (AC) generator. It is possible to produce various degrees of electrical power output & frequency via the manipulation of these factors.

Applications of A.C Generator

In general, alternating current (AC) generators are used rather often in power plants & other applications that need significant quantities of electrical power.