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generator (alternator) and, in turn, is charged and maintained by the AC generator. • An AC generator (alternator), which is belt-driven by the engine and converts mechanical motion into charging voltage and current. The simple AC generator (alternator) shown in Figure 8-3 consists of a magnet rotating inside a fixed-loop stator, or conductor. Uses of Alternator. It is commonly used in automobiles. It is used in conventional energy power stations like thermal, nuclear, hydro and gas power stations. Used in Diesel engines. Picture Credit. ResearchGate. Quora. Thus, in this article, we had an overview of what is an alternator. It is an AC generator and similar to that of a synchronous DEFINITION AND TYPES OF ALTERNATOR • An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. Most alternators use a rotating magnetic field with stationary armature. • It is also known as synchronous generator. Construction of AC synchronous generator (alternator) The main parts of an alternator, obviously, consists of a stator and a rotor. But, unlike other machines, in most of the alternators, field exciters are rotating and the armature coil is stationary. Stator: Unlike in a DC machine, the stator of an alternator is not meant to serve a path for The alternator and the grid must have the same 1.Voltage 2.Frequency 3.Phase Sequence 4.Phase IWhen all the above conditions are satis ed, the three lamps will be dark. It is time to close the switch. IOnce it is synchronized, the terminal voltage and frequency of the alternator can not be changed. IBy changing the prime mover speed, Real Power What is Alternator? An alternator is defined as a machine or generator which produces AC (Alternating Current) supply and it converts mechanical energy into electrical energy, so it is also called an AC generator or synchronous generator. There are different types of alternators based on applications and design. by Electrical4U. The construction of an alternator consists of field poles placed on the rotating fixture of the machine. An alternator is made up of two main parts: a rotor and a stator. The rotor rotates in the stator, and the field poles get projected onto the rotor body of the alternator. The armature conductors are housed on the stator. The working of an alternator is based on the principle that when the flux linking a conductor changes, an emf is induced in the conductor. Alternators are the primary source of all the electrical energy we consume. These machines are the largest energy converters found in the world. They convert mechanical energy into AC energy. Full syllabus notes, lecture & questions for Chapter 4 - Synchronous Generators or Alternators - Notes, Electrical Machines, Electrical Engineeri Notes - SSC JE - SSC JE | Plus excerises question with solution to help you revise complete syllabus | Best notes, free PDF download In the majority of cases, the rotor has the d.c. winding and the stator the a.c. winding. An alternator with a rotating a.c. winding and a stationary d.c. winding, while suitable for smaller outputs, is not satisfactory for the larger outputs required at power stations. With these machines the output can be in megawatts; a value too large to be The same alternator as a Marine alternator has a Class F temperature rise continuous marine rating of 65kVA and so X"d at this marine rating is equal to [65/85] x 11 = 8.4%. At