The essential difference between an AC generator and a DC generator is that
The essential difference between an AC generator and a DC generator is that Correct Answer AC generator has slip rings while the DC generator has a commutator.
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Difference between AC and DC Generator
|
SI. No. |
Differentiating property |
AC Generator |
DC Generator |
|
1 |
Definition |
AC generator is a mechanical device which coverts mechanical energy into AC electrical power. |
DC generators is a mechanical device which converts mechanical energy into DC electrical power. |
|
2 |
Direction of current |
In an AC generator, the electrical current reverses direction periodically. |
In a DC generator, the electrical current flows only in one direction. |
|
3 |
Basic Design |
In an AC generator, the coil through which the current flows is fixed while the magnet moves. The construction is simple and costs are less. |
In a DC generator, the coil through which the current flows rotates in a fixed field. The overall design is very simple but construction is complex due commutators and slip rings. |
|
4 |
Commutators |
AC generator does not have commutators. |
DC generators have commutators to make the current flow in one direction only. |
