Difference Between AC and DC Generator

Q1

What are the similarities between AC generators and DC generators?

The similarities between AC generators and DC generators are that both work on the relative motion of a coil between the coil of the wire and the magnetic field which is used in the production of electricity. In both the generators alternating current is produced but in DC generator, the commutator is used in the conversion of direct current into alternating current.

Q2

How many types of AC generators are there?

There are two types of AC generators and they are:

• Induction generators
• Synchronous generators

Q3

What is an induction generator?

An induction generator is also known as an asynchronous generator that has a working principle similar to that of an AC generator. The only difference between a normal AC generator and an induction generator is that the induction generator is a rotating device. It is known as asynchronous because the speed of the induction generator is less than that of the synchronous generator. They find applications in mixers and grinders.

Q4

How to convert AC generator into DC generator?

A split-ring commutator is used for the conversion of the AC generator into the DC generator. When a slipt-ring commutator is used, it makes the current change its direction after every alternate half-cycle. It basically reverses the direction of the current after every half rotation and this helps in maintaining the current in positive half-cycle.