Types of DC generators

Generators are mainly divided into two types.

  • Separately excited
  • Self-excited generator

If the emf is applied externally then it is separately excited generators. If field winding is energized by the current produced by generators itself, this is known as a self-excited generator.

The self-excited generator is further subdivided into three types.

  1. Series generator

In a series wound generator, the field winding is connected in series with armature winding so that whole armature current flows through the field winding as well as the load.

  1. Shunt generator

In a series wound generator, the field winding is connected in series with armature winding so that whole armature current flows through the field winding as well as the load.

  1. Compound generator

In a compound-wound generator, there are two sets of field windings on each pole – one is in series and the other in parallel with the armature.

The compound generator is again subdivided into

  • Long shunt generator
  • Short shunt generator

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