State the difference between generator and alternator?

Alternators and generators are two devices which generate electricity. An alternator can be called a type of generator. Although both these devices serve the same function, they are quite different in every other aspect.

An alternator is a charging system for cars that produces electricity. Generators are used in the production of large-scale electricity

Generator cn be DC output or AC

alternator only AC

A generator can be synchronous or Asynchronous.An alternator is a synchronous generator.

The main difference between the alternator and generator is in the generator the magnet (either the permanent magnet or electromagnet) or field system is stationary and the armature is rotating but in case of the alternator the armature is stationary and field is rotating.

Other differences

Source: etechnog.blogspot.com

generator for small applications and can be single or three phase in its output and mostly operating by diesel engines , but alternators are the power ones and commonly used in electrical plants and always three phase.

I agree with the answers of colleagues and there is no addition after they answered

Alternator vs Generator

Alternators and generators are two devices which generate electricity. An alternator can be called a type of generator. Although both these devices serve the same function, they are quite different in every other aspect.

An alternator is a charging system for cars that produces electricity. Generators are used in the production of large-scale electricity. Both alternators and generators convert mechanical energy into electrical energy. The main difference between them is in regard to what spins and what is fixed.

In an alternator, electricity is produced when a magnetic field spins inside the stator (windings of wire). In a generator, on the other hand, the armature or windings of wire spin inside a fixed magnetic field to generate electricity.

Alternators are considered more efficient than generators. Alternators conserve energy by using only the energy that is needed, while generators use all the energy that is produced. Alternators have a higher output than generators.

When it comes to polarization, alternators and generators are very different. While generators have to be polarized after installation, there is no need for polarization in alternators.Alternator brushes last longer than those of generators. This is because the brushes in an alternator are used only for carrying current to power the rotor and the slip rings they ride are smooth.There is another difference between generators and alternators when it comes to charging. An alternator will not charge a dead battery and if you do try to charge it, there is a possibility that it will burn out. A generator, however, can be used for charging a dead battery.

There is also a difference in size as alternators can fit into a small space, while generators are larger.

Summary:1.In an alternator, electricity is produced when a magnetic field spins inside the stator (windings of wire). On the other hand, the armature or the windings of wire in a generator spin inside a fixed magnetic field to generate electricity.2.Alternators conserve energy by using only the energy that is needed. Generators use all the energy that is produced.3.Alternators produce voltage when needed and generators produce voltage at all times.4.Alternators generate a higher output than generators.