An alternator is a machine that converts mechanical energy to electrical energy by outputting alternating current (AC). It has different power factor characteristics depending on the load and produces a voltage-current relationship curve. Alternators are used as electric generators in power grids, to charge batteries and power electrical systems in automobiles, provide electricity to traction motors in diesel-electric locomotives, for yachts needing saltwater adaptability, and for radio transmission through high frequency variable reluctance alternators.

1. CHARACTERISTICS OF
ALTERNATORS AND ITS
APPLICATIONS
DONE BY
PARTHASARATHI M

2. What is Alternator?
● An alternator is a machine which converts
mechanical energy into electrical energy.
● The output is AC supply.
● It is also called an AC generator or
synchronous generator.

3. Characteristics of Alternator
● Leading power factor
● Unity power factor
● Lagging power factor

4. Characteristics curve of Alternator
relationship between the terminal voltage & load current

5. Applications of alternators
Electric Generators:
● It is used in power generation grid.
Automotive alternators:
● It is used in modern automobiles to charge the battery.
● And to power the electrical system while running.

6. Applications of alternators
Diesel electric locomotive alternators:
● A prime mover rotates the alternator which provides the electricity for the traction
motors.
● The motor maybe AC or DC.
Marine alternators:
● Marine alternators are used in yacht which has saltwater adaptivity.
Radio alternators:
● High frequency alternators of variable reluctance are used for radio transmission in
low frequency radio bands

7. Thank
you