CLASSIFICATION OF GENERATORS
Self-excited generators are classed according to the type of field connection they use.
There are three general types of field connections - SERIES-WOUND, SHUNT-WOUND (parallel), and COMPOUND-WOUND.
Compound-wound generators are further classified as cumulative-compound and differential-compound.
Series-Wound Generator or Series connected generator
In the series-wound generator, the field windings are connected in series with the armature.
Current that flows in the armature flows through the external circuit and through the field windings.
The external circuit connected to the generator is called the load circuit.
Shunt-Wound Generators
In a shunt-wound generator, the field coils consist of many turns of small wire and relatively high field resistance.
They are connected in parallel with the load. In other words, they are connected across the output voltage of the armature.
Compound-Wound Generators
Compound-wound generators have a series-field winding in addition to a shunt-field winding。
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